Now that we have seen the battery what are your thoughts? NMC, Semi solid state, or Solid State? Doesn’t seem like LiFePO4 at all, but this did pass puncture tests as claimed! And the performance of the Yoshino units are impressive from my testing. Have a question you want answered fast: asqme.com/@johnnysweekends SAVE BIG ON NEW SOLAR PANELS HERE: signaturesolar.com/?ref=JWKNDS DISCOUNT CODE: JOHNNYWKND BUNDLE & SAVE SHOP SOLAR KITS ! shopsolarkits.com/1134 CHEAP USED CERTIFIED SOLAR PANELS HERE: www.santansolar.com/?ref=Johnnys%20Weekends CHECK OUT MY AMAZON STORE: www.amazon.com/shop/johnnysweekends If you feel I helped you out..Consider Buying me a Coffee 👍🏼🙌🏼👊🏼😀 www.buymeacoffee.com/johnny5120J
Crazy how many tear down videos of this product all dropped within a few days. This may be the best of the bunch. I'm guessing they are half dry cell, and marketing just ran away with it after enginnering told them that.
My guess is they had a major sponsorship marketing push a few weeks ago. That's how I first learned about this company. Skeptics bought some to tear down and now we're getting the truth from those teardowns.
This is my second video, we will see if the true experts can tell what they are looking at. The more I research the more this looks like it could actually be more like a solid state battery. hours of searching and reading are getting old 😂
I've taken apart one LiFePO4 cell and multiple "lithium ion" in various combinations - manganese oxide, cobalt oxide, and the prototypical nickel manganese oxide cobalt oxide. I agree it did not seem like LiFePO4 other than its behavior to puncture - I took my cell apart after it had been punctured, and there was no flame or spark or heat. It was probably more than 50% charged at the time. It seemed a lot like my other LiIon cells I've taken apart and damaged. I've only had single puncture fires when the cell was near full charged or over charged. If I discharged them first, there was little or no drama. The evaporating electrolyte and immediate oxidation looked essentially identical to that shown in this video. Specifically, the "immediate drama" cells I've had were LiPo (Lithium Polymer, where the liquid polymer electrolyte is nasty stuff and the cells have a lot of energy when charged).
Thank you for the informative comment. This is still quite the debate as the evaporated liquid in the video is supposedly a binding agent. So the investigation continues
So do you know how many classes of lithium batteries there are? Did you know LFP falls under a class of lithium ion batteries? Did you read every individual ingredient in the MSDS sheet to categorize what percent makes it NMC or solid state? Or are you speculating just because it says lithium ion? but since there are several classes or lithium ion batteries I would rather have the rest of the facts verses just an assumption. Hence another large UA-camr is doing the same before we come to a conclusion. To many have already concluded with no factual material yet except for what we have seen. But let’s wait to hear from the experts. Hopefully in a few days or next week I’ll have a follow up video Battery make up and chemistry is what’s important. Not the class it falls under.
I mostly did but do now, do you? But the question is can you tell the difference by looking at two batteries if I placed it in front of you and both were opened. Could you honestly answer and say yes, 1000% this battery is solid state or it is not, because I can’t. I can only tell you what it is supposed to be the chemical make up. Because so far no one on multiple channels are able to answer….. Plus I never said I did know exactly what a solid state battery is, I would rather be honest verses guess, which so many others have been doing. And since no one has seen a solid state battery, which I assume you haven’t either I assume I know your answer. Unless you’re a battery expert then Im all ears.
@@johnnysweekends If a company was telling me that they were producing Solid State Cells the first thing I'd look for is a separator. As soon as you see a separator, you would immediately realise it can't be a Solid State Cell.
@@VinoVeritas_ Exactly. It wouldn't be the same construction as traditional lithium cells at all. It's blatantly obvious this is not a solid state cell!
Crazy how quickly and easily lithium batteries will burn and keep burning. The pyro in me always enjoys watching these battery dissections. Thanks for sharing!
Is the liquid there just to get the thin separator completely flat with no wrinkles or bubbles? Much like you use a liquid to get window tints perfectly smooth.
in the solid state batteries the separator is made of ceramic, so it shouldn´t burn or shrink like plastic does, that´s the way to identify a real solid batery
@@johnnysweekends I has been reading about that batteries for a while, un theory they are more thin than average battery due to the lack of electrolyte, also the ceramic separator is very fine ( extra thin ), I haven't had one in my hands , but the phone I have it's supposed to have one, a blackview 8900, the battery is 10380mah, but the phone is not exaggerated thick as we can expect form a battery of that capacity, and I can tell a full charge can last 3 or 4 days with regular use, but gaming or such is the half of that time, also another feature of that batteries is the can support very quick charge, this phone charge the battery at 5600mah, and since the ceramic support very high temperatures never will burn or lose it's shape with heat or fire
I am just gonna come out and say people really dont understand Solid State is just a component thing for the chemistry of whatever's used, it's not a full-on different thing.
My QR code doesn’t work and I have looked at the MSDS sheet. So do you know how many classes of lithium batteries there are? Did you know LFP falls under a class of lithium ion batteries? Did you read every individual ingredient in the MSDS sheet to categorize what percent makes it NMC or solid state? Or are you speculating just because it says lithium ion? If you are a professional I won’t doubt you, but since there are several classes or lithium ion batteries I would rather have the rest of the facts verses just an assumption. Hence another large UA-camr is doing the same before we come to a conclusion. To many have already concluded with no factual material yet except for what we have seen. But let’s wait to hear from the experts. Hopefully in a few days or next week I’ll have a follow up video Battery make up and chemistry is what’s important. Not the class it falls under.
@@johnnysweekends Yup, NMC doesn't mean it's not solid state. Lithium Ion doesn't mean it's not solid state. NMC is a type of lithium ion battery, as are most, if not all, solid state batteries being developed. If I have ever implied otherwise, I apologize. When I mentioned the SDS in my video and said it was for a standard lithium ion battery, I mean not a solid state one, but they are all lithium ion. My comment was based on the fact that it seemed to show liquid electrolyte, so not a fully solid state battery. When I looked into the various chemicals, I confirmed that at least two of them were liquid, organic solvent electrolytes. But I am sorry for anything I've contributed to the confusion of lithium ion vs. solid state, which isn't a thing. At the very least, most solid state batteries are lithium ion. I think there's a lot of confusion on all sides about terms and definitions. However, in my humble opinion, and from all I've read, the presence of liquid, organic electrolytes, even in relatively small quantities means it isn't a fully solid state battery. And that doesn't seem to be what all the big companies are pushing for and calling "solid state." And all the massive benefits you normally see for solid state batteries are talking about the fully solid state variety. Major increase in thermal runaway resistance. Major increase in charging speeds. Major increase in energy density. But all semi-solid state/hybrid batteries are an incremental step forward, not a major one. But Yoshino pitches their batteries as if they are the major step forward everyone has been waiting for and seeing hype articles about for like 10+ years. I think it's a bit misleading. Though I may have been a bit unfair to call it a "lie" in my video. I was a bit frustrated because I've been seeing a lot of false claims from Chinese companies lately, and they stopped responding to my emails when I asked them about the graph on their website that listed solvents and asked if they might be a semi-solid state. I only learned later that some said they actually advertised them as a hybrid in some places. If that was a consistent claim from them, I wouldn't have bothered with my video in the first place. But it seemed clear that they wanted to make people picture the fully solid state hype train, especially since they were directly promoting some of the pie-in-the-sky claims of solid state batteries, with their batteries definitively do not meet (such as 2.5X the energy density, ultra-rapid charging, etc.).
@bigtb1717 I totally agree. And hopefully I didn’t seem like i was trying to discredit what you have found. It’s the assumptions others have made, and then immediately said it’s not a solid state battery it’s lithium ion NMC. Which anyone who has ever seen NMC ignite its way more fun, and dangerous. I agree many Chinese companies claim to offer such specs or certain performance and barely meeting 80% of that. Some do well some do poor. I cant tell you how many items I turn down because it’s junk. Not only me but other creators I talk with all the time. We test stuff, and if it passes then it makes it on the channel if it seems to be a product people will actually want. Some of its cheap, some of its expensive. When it’s new tech it will be premium priced. Over all the Yoshino B4000 actually tested really well for me and a couple others. It’s a very solid unit with great performance and was quiet. Biggest draw back was solar input and 60v limit and extra batteries are still not out. But price was also pretty tough for most. I like to keep an open mind on this till there is a final conclusion. Im not a battery expert, I have tested my share and taken several apart. But to fully look at a battery and tell its chemical composition is not my department. Nor is it many others who have commented and just said look at the QR code. Much more to it then that if you want the actual truth. Which it does take you to a Chinese company that manufactures “solid state” batteries, so they say. Are they full solid state batteries, ahh I dont think so. A hybrid that is closer than most others, probably. So they bend the truth and say let’s just call it solid state. But that’s what we need to find out, that last actual expert to say….Yes or No. But they are much much safer than NMC in every way and honestly it took a lot to make it ignite. So claims of it being safer I can say are true. The B4000 was also efficient, more than many other name brand units at that time. But I will remain neutral till I can find the info that concludes it. Do I like false claims, no hence again many items dont make it on the channel, but I will at least make sure a duck is a duck before I just assume. If you find out any definite info let me know, I’ll do the same. Thanks for the comment.
@@bigtb1717 BYD does same penetration tests on its blade batteries without ignition and makes no claim they are solid state. Just standard LiFePo. The Yoshino used off the shelf pouch batteries. Do they mistakenly think they are solid state? Possibly, but that also undermines their credibility. Do any of their competitors use the exact same battery?
Any other companies making them? A side by side comparison might help. They used semi solid state in some of their brochures, so maybe that’s what it is. Aside from “truth in advertising”, my main objection is price vs. performance. Also, like LFP, there probably is natural degradation as well. What is the practical cycle life? A 3500 cycle to 80% LFP lasts 10 years plus. But at what point will natural degradation put a sizable dent into it? If both chemistries remain viable for 10-15 years, then solid state has little advantage. Higher charge rate? That can be interesting in cold climates with short sun exposure. Cold weather performance? Well, for that we’d need actual batteries not a solar generator. But most importantly, they can’t compete on price yet. I just bought a AC200L for $1200 much better price value.
Unfortunately nothing to compare side by side. Not sure why semi solid state is in some of the brochures when Solid state is what was pushed. Over all the B4000 did really well in tests. But price is tough when so many other options are out there. Thanks for the comment
Yoshino power teardowns reveal non solid state batteries in their power stations Based on teardowns and analysis, it appears that Yoshino Power’s portable power stations, including the B330 and B4000 models, utilize non-solid-state batteries, contradicting their marketing claims of employing solid-state technology. Key Findings Liquid Electrolyte: Teardowns reveal the presence of a liquid electrolyte, a characteristic of traditional lithium-ion batteries, rather than a solid-state electrolyte. NCM (Nickel Cobalt Manganese) Formula: The battery chemistry used by Yoshino Power is identified as NCM, which is a common formula for lithium-ion batteries, not solid-state batteries. Safety Concerns: While Yoshino Power’s marketing emphasizes the safety benefits of solid-state batteries, the use of liquid electrolytes and NCM chemistry may still pose safety risks, such as thermal runaway and fires, similar to traditional lithium-ion batteries.
Great video, thanks for making it! This is the first test or dissection of a solid state battery I’ve seen. It’s certainly a heck of a lot more resilient than typical LiIon cells. A minor pedantic point, they’re pronounced anode and cathode, not anoid and cathoid (“ode” vs “oid”) You’ve probably figured this out yourself already, but it’s best to fully discharge a battery before dissecting it, there’ll be a lot less chemical potential sitting there waiting to turn into thermal energy. (Unless of course you want to show the parts that are potentially flammable, which might have been the point here 👍😁) That certainly looks pretty dry/solid state to me, I didn’t see the typical liquid electrolyte. I suspect there might be some moisture bound up in the components like the black anodes or the white separator films, but possibly not(?) (What I don’t understand about solid state batteries in general is that the ions still need to migrate freely from anode to cathode and back again, right? It seems like that would be difficult in a solid..)
This *might* be a semi-solid state battery but it does not match criteria for a true solid state battery. The Chinese company’s US marketing website is blatantly false advertising and the safety claims overblown. Surely a slam dunk court case. The real nail in coffin would be lab tests on the battery chemistry.
I think when that battery pouch charges it discharges a liquid and when it discharges it goes back into whatever polymer electrolyte layer they are using.
That is a bog standard Li-Ion battery with liquid electrolyte, sold as solid state. If that would have been a solid state battery, it would have been a real breakthrough - but no, it's a scam...
Well, certainly looks safer than the infamous semi-solid Chins cell Will Prowse drilled. I might have to have another look at Yoshino, I have 6000wh of Bluetti but that's not exactly heftable, another 2000wh ish one would be great to run an induction cooker from.
The chief engineer (video) on a battery, he does tell you that this does have a very thin layer of liquid so this kills yours wrong ideas about it...?!? So it is a very slight hybrid maybe as you describe it but somewhat still solid state...you seem to be only looking to start a fire here...be very honest...It may be a great step forward...Like Tesla DOES...
Nice! By definition whatever’s evaporating makes it semi solid state and if it’s an essential ingredient it will evaporate internally eventually, it depends how long that will take as to how long these will last, time will tell. I’ll stick with Lifepo4 for the time being, at least until some longevity tests come out. They do appear to be very stable to puncture though, not that I’ve ever punctured a Lifepo4 battery or even heard of it happening in the wild.
I own the B4000 SST used it for the first time last month in July, the unit did work fine, but after watching this, and the other video that surfaced where they lie about using solid state batteries, I feel cheated. Is anybody starting a class action suit or something along that line to hold them accountable for false advertisement?
I don’t think you can sue until there is true factual evidence this is not a solid state battery, so far the findings are leading more to a “type” of solid state or semi. No one has any factual data yet just some tests that are not equal. We have just started
You got a product that works, didn't you? The real challenge will be their claimed LFP-like longevity of thousands of cycles, vs the usual NMC life of only about 800.
Most importantly, why would anyone trust this company at all? Why can't the company clear this up? Overall the power station has sub par specs and performance. Thanks for the teardowns. I will pass on this company forever.
I thought the B4000 unit tested excellent. All my tests it passed and was a very nice unit. More premium price but a great performer. Now can you tell if this battery is truly not solid state make up?
@@johnnysweekends 602 wH for $699 is a terrible price. A 600 watt inverter? You can get almost triple these specs with something like a Pecron E1500LFP. Doesn't seem like a real solid state battery with liquid in it so why should anyone buy this?
@@desiv1170 If this was not hyped as solid state no one would have ever even talked about it. It is otherwise forgettable. They have to at least get that part correct. Have they?
This is not solid state. There is not much difference between this and a mobile phone battery. The only difference is the mobile phone batteries there is one big strip that’s get folded. These are smaller anode cathode sheets folded. Because these exist out of multiple sheets it’s less prone to damage by penetrating the battery.
Now that we have seen the battery what are your thoughts? NMC, Semi solid state, or Solid State? Doesn’t seem like LiFePO4 at all, but this did pass puncture tests as claimed! And the performance of the Yoshino units are impressive from my testing.
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@@johnnysweekends There's no such thing as semi-solid state. Just like a Flying Squirrel isn't a semi-pigeon.
What if the squirrel identifies as a pigeon?? I think that’s a thing nowadays 😂
@@johnnysweekends No, that's just your bigotry.
Joke dude, dont be so sensitive
I almost bought one because I wanted to get a safe battery, you saved me from a terrible bad purchase
Crazy how many tear down videos of this product all dropped within a few days. This may be the best of the bunch. I'm guessing they are half dry cell, and marketing just ran away with it after enginnering told them that.
Are there several others videos? I only saw one.
My guess is they had a major sponsorship marketing push a few weeks ago. That's how I first learned about this company. Skeptics bought some to tear down and now we're getting the truth from those teardowns.
@vladimus9749 but can anyone truly say this is not a solid state battery. Where are the actual experts?
Maybe there was 2 by you, then another bigtb1q717. Also Matt Ferrell dropped an update video. I haven't watched it yet.
This is my second video, we will see if the true experts can tell what they are looking at. The more I research the more this looks like it could actually be more like a solid state battery.
hours of searching and reading are getting old 😂
Anode and cathode, not anoid and cathoid. You can check the cell voltage to tell if it's LFP or not. Above 3.6v it's probably not LFP.
Wow that was one heck of a tear down
It was fun… want one I have a couple left 😂👍🏼
I've taken apart one LiFePO4 cell and multiple "lithium ion" in various combinations - manganese oxide, cobalt oxide, and the prototypical nickel manganese oxide cobalt oxide.
I agree it did not seem like LiFePO4 other than its behavior to puncture - I took my cell apart after it had been punctured, and there was no flame or spark or heat. It was probably more than 50% charged at the time.
It seemed a lot like my other LiIon cells I've taken apart and damaged. I've only had single puncture fires when the cell was near full charged or over charged. If I discharged them first, there was little or no drama. The evaporating electrolyte and immediate oxidation looked essentially identical to that shown in this video.
Specifically, the "immediate drama" cells I've had were LiPo (Lithium Polymer, where the liquid polymer electrolyte is nasty stuff and the cells have a lot of energy when charged).
Thank you for the informative comment. This is still quite the debate as the evaporated liquid in the video is supposedly a binding agent. So the investigation continues
Interesting and well done!
What was the state of charge of this cell at time of test? Perhaps it had self discharged since removal from the pack
The unit was in the 90% charge area at time of disassembly
I’ll double check cell volt
QT-9114897 MSDS lists this battery as a LITHIUM-ION battery. So no, not solid state--well built yes, but not the chemistry that was claimed.
So do you know how many classes of lithium batteries there are?
Did you know LFP falls under a class of lithium ion batteries?
Did you read every individual ingredient in the MSDS sheet to categorize what percent makes it NMC or solid state?
Or are you speculating just because it says lithium ion?
but since there are several classes or lithium ion batteries I would rather have the rest of the facts verses just an assumption. Hence another large UA-camr is doing the same before we come to a conclusion.
To many have already concluded with no factual material yet except for what we have seen. But let’s wait to hear from the experts.
Hopefully in a few days or next week I’ll have a follow up video
Battery make up and chemistry is what’s important. Not the class it falls under.
@@johnnysweekends Do you know what a Solid State Battery is? This is the main question.
I mostly did but do now, do you? But the question is can you tell the difference by looking at two batteries if I placed it in front of you and both were opened. Could you honestly answer and say yes, 1000% this battery is solid state or it is not, because I can’t. I can only tell you what it is supposed to be the chemical make up.
Because so far no one on multiple channels are able to answer…..
Plus I never said I did know exactly what a solid state battery is, I would rather be honest verses guess, which so many others have been doing. And since no one has seen a solid state battery, which I assume you haven’t either I assume I know your answer.
Unless you’re a battery expert then Im all ears.
@@johnnysweekends If a company was telling me that they were producing Solid State Cells the first thing I'd look for is a separator. As soon as you see a separator, you would immediately realise it can't be a Solid State Cell.
@@VinoVeritas_ Exactly. It wouldn't be the same construction as traditional lithium cells at all. It's blatantly obvious this is not a solid state cell!
Crazy how quickly and easily lithium batteries will burn and keep burning. The pyro in me always enjoys watching these battery dissections. Thanks for sharing!
Is the liquid there just to get the thin separator completely flat with no wrinkles or bubbles? Much like you use a liquid to get window tints perfectly smooth.
It’s a binding for when constructing the battery, then I guess it gets vacuum sealed. So when disassembled a couple reactions are taking place.
I'll stick with the O.R. less toxic, stay safe brother!
😂👍🏼👊🏼
in the solid state batteries the separator is made of ceramic, so it shouldn´t burn or shrink like plastic does, that´s the way to identify a real solid batery
Have you seen a real solid state battery to compare anything ? Do all solid state batteries use a ceramic?
@@johnnysweekends I has been reading about that batteries for a while, un theory they are more thin than average battery due to the lack of electrolyte, also the ceramic separator is very fine ( extra thin ), I haven't had one in my hands , but the phone I have it's supposed to have one, a blackview 8900, the battery is 10380mah, but the phone is not exaggerated thick as we can expect form a battery of that capacity, and I can tell a full charge can last 3 or 4 days with regular use, but gaming or such is the half of that time, also another feature of that batteries is the can support very quick charge, this phone charge the battery at 5600mah, and since the ceramic support very high temperatures never will burn or lose it's shape with heat or fire
Thanks for this!
So to the point nice
I am just gonna come out and say people really dont understand Solid State is just a component thing for the chemistry of whatever's used, it's not a full-on different thing.
All you had to do was follow the qr code. The safety data sheet for the battery pack reveals the real manufacturer and chemistry.
My QR code doesn’t work and I have looked at the MSDS sheet.
So do you know how many classes of lithium batteries there are?
Did you know LFP falls under a class of lithium ion batteries?
Did you read every individual ingredient in the MSDS sheet to categorize what percent makes it NMC or solid state?
Or are you speculating just because it says lithium ion?
If you are a professional I won’t doubt you, but since there are several classes or lithium ion batteries I would rather have the rest of the facts verses just an assumption. Hence another large UA-camr is doing the same before we come to a conclusion.
To many have already concluded with no factual material yet except for what we have seen. But let’s wait to hear from the experts.
Hopefully in a few days or next week I’ll have a follow up video
Battery make up and chemistry is what’s important. Not the class it falls under.
@@johnnysweekends Yup, NMC doesn't mean it's not solid state. Lithium Ion doesn't mean it's not solid state. NMC is a type of lithium ion battery, as are most, if not all, solid state batteries being developed. If I have ever implied otherwise, I apologize. When I mentioned the SDS in my video and said it was for a standard lithium ion battery, I mean not a solid state one, but they are all lithium ion. My comment was based on the fact that it seemed to show liquid electrolyte, so not a fully solid state battery. When I looked into the various chemicals, I confirmed that at least two of them were liquid, organic solvent electrolytes. But I am sorry for anything I've contributed to the confusion of lithium ion vs. solid state, which isn't a thing. At the very least, most solid state batteries are lithium ion.
I think there's a lot of confusion on all sides about terms and definitions. However, in my humble opinion, and from all I've read, the presence of liquid, organic electrolytes, even in relatively small quantities means it isn't a fully solid state battery. And that doesn't seem to be what all the big companies are pushing for and calling "solid state." And all the massive benefits you normally see for solid state batteries are talking about the fully solid state variety. Major increase in thermal runaway resistance. Major increase in charging speeds. Major increase in energy density. But all semi-solid state/hybrid batteries are an incremental step forward, not a major one. But Yoshino pitches their batteries as if they are the major step forward everyone has been waiting for and seeing hype articles about for like 10+ years. I think it's a bit misleading. Though I may have been a bit unfair to call it a "lie" in my video. I was a bit frustrated because I've been seeing a lot of false claims from Chinese companies lately, and they stopped responding to my emails when I asked them about the graph on their website that listed solvents and asked if they might be a semi-solid state. I only learned later that some said they actually advertised them as a hybrid in some places. If that was a consistent claim from them, I wouldn't have bothered with my video in the first place. But it seemed clear that they wanted to make people picture the fully solid state hype train, especially since they were directly promoting some of the pie-in-the-sky claims of solid state batteries, with their batteries definitively do not meet (such as 2.5X the energy density, ultra-rapid charging, etc.).
@bigtb1717 I totally agree. And hopefully I didn’t seem like i was trying to discredit what you have found. It’s the assumptions others have made, and then immediately said it’s not a solid state battery it’s lithium ion NMC. Which anyone who has ever seen NMC ignite its way more fun, and dangerous.
I agree many Chinese companies claim to offer such specs or certain performance and barely meeting 80% of that. Some do well some do poor. I cant tell you how many items I turn down because it’s junk. Not only me but other creators I talk with all the time. We test stuff, and if it passes then it makes it on the channel if it seems to be a product people will actually want. Some of its cheap, some of its expensive. When it’s new tech it will be premium priced.
Over all the Yoshino B4000 actually tested really well for me and a couple others. It’s a very solid unit with great performance and was quiet. Biggest draw back was solar input and 60v limit and extra batteries are still not out. But price was also pretty tough for most.
I like to keep an open mind on this till there is a final conclusion. Im not a battery expert, I have tested my share and taken several apart. But to fully look at a battery and tell its chemical composition is not my department. Nor is it many others who have commented and just said look at the QR code. Much more to it then that if you want the actual truth.
Which it does take you to a Chinese company that manufactures “solid state” batteries, so they say.
Are they full solid state batteries, ahh I dont think so. A hybrid that is closer than most others, probably. So they bend the truth and say let’s just call it solid state. But that’s what we need to find out, that last actual expert to say….Yes or No.
But they are much much safer than NMC in every way and honestly it took a lot to make it ignite. So claims of it being safer I can say are true. The B4000 was also efficient, more than many other name brand units at that time.
But I will remain neutral till I can find the info that concludes it. Do I like false claims, no hence again many items dont make it on the channel, but I will at least make sure a duck is a duck before I just assume.
If you find out any definite info let me know, I’ll do the same. Thanks for the comment.
@@johnnysweekends Sounds good. Cheers!
@@bigtb1717 BYD does same penetration tests on its blade batteries without ignition and makes no claim they are solid state. Just standard LiFePo. The Yoshino used off the shelf pouch batteries. Do they mistakenly think they are solid state? Possibly, but that also undermines their credibility. Do any of their competitors use the exact same battery?
Any other companies making them? A side by side comparison might help.
They used semi solid state in some of their brochures, so maybe that’s what it is. Aside from “truth in advertising”, my main objection is price vs. performance.
Also, like LFP, there probably is natural degradation as well. What is the practical cycle life? A 3500 cycle to 80% LFP lasts 10 years plus. But at what point will natural degradation put a sizable dent into it? If both chemistries remain viable for 10-15 years, then solid state has little advantage.
Higher charge rate? That can be interesting in cold climates with short sun exposure.
Cold weather performance? Well, for that we’d need actual batteries not a solar generator.
But most importantly, they can’t compete on price yet. I just bought a AC200L for $1200 much better price value.
Unfortunately nothing to compare side by side. Not sure why semi solid state is in some of the brochures when Solid state is what was pushed. Over all the B4000 did really well in tests. But price is tough when so many other options are out there. Thanks for the comment
Yoshino power teardowns reveal non solid state batteries in their power stations
Based on teardowns and analysis, it appears that Yoshino Power’s portable power stations, including the B330 and B4000 models, utilize non-solid-state batteries, contradicting their marketing claims of employing solid-state technology.
Key Findings
Liquid Electrolyte: Teardowns reveal the presence of a liquid electrolyte, a characteristic of traditional lithium-ion batteries, rather than a solid-state electrolyte.
NCM (Nickel Cobalt Manganese) Formula: The battery chemistry used by Yoshino Power is identified as NCM, which is a common formula for lithium-ion batteries, not solid-state batteries.
Safety Concerns: While Yoshino Power’s marketing emphasizes the safety benefits of solid-state batteries, the use of liquid electrolytes and NCM chemistry may still pose safety risks, such as thermal runaway and fires, similar to traditional lithium-ion batteries.
Where did you get this? Source?
Again where did this info come from? If no source then it’s not factual.
Great video, thanks for making it! This is the first test or dissection of a solid state battery I’ve seen. It’s certainly a heck of a lot more resilient than typical LiIon cells.
A minor pedantic point, they’re pronounced anode and cathode, not anoid and cathoid (“ode” vs “oid”)
You’ve probably figured this out yourself already, but it’s best to fully discharge a battery before dissecting it, there’ll be a lot less chemical potential sitting there waiting to turn into thermal energy. (Unless of course you want to show the parts that are potentially flammable, which might have been the point here 👍😁)
That certainly looks pretty dry/solid state to me, I didn’t see the typical liquid electrolyte. I suspect there might be some moisture bound up in the components like the black anodes or the white separator films, but possibly not(?)
(What I don’t understand about solid state batteries in general is that the ions still need to migrate freely from anode to cathode and back again, right? It seems like that would be difficult in a solid..)
This *might* be a semi-solid state battery but it does not match criteria for a true solid state battery. The Chinese company’s US marketing website is blatantly false advertising and the safety claims overblown. Surely a slam dunk court case. The real nail in coffin would be lab tests on the battery chemistry.
I think when that battery pouch charges it discharges a liquid and when it discharges it goes back into whatever polymer electrolyte layer they are using.
That is a bog standard Li-Ion battery with liquid electrolyte, sold as solid state. If that would have been a solid state battery, it would have been a real breakthrough - but no, it's a scam...
Well, certainly looks safer than the infamous semi-solid Chins cell Will Prowse drilled. I might have to have another look at Yoshino, I have 6000wh of Bluetti but that's not exactly heftable, another 2000wh ish one would be great to run an induction cooker from.
Cathoid. Anoid. You forgot the Domino’s Pizza Noid.
The chief engineer (video) on a battery, he does tell you that this does have a very thin layer of liquid so this kills yours wrong ideas about it...?!? So it is a very slight hybrid maybe as you describe it but somewhat still solid state...you seem to be only looking to start a fire here...be very honest...It may be a great step forward...Like Tesla DOES...
Nice! By definition whatever’s evaporating makes it semi solid state and if it’s an essential ingredient it will evaporate internally eventually, it depends how long that will take as to how long these will last, time will tell. I’ll stick with Lifepo4 for the time being, at least until some longevity tests come out. They do appear to be very stable to puncture though, not that I’ve ever punctured a Lifepo4 battery or even heard of it happening in the wild.
There's no such thing as semi-solid state. It's either Solid State or not. It's either dead or alive, not semi-alive or semi-dead.
@@VinoVeritas_ So marketing fraud?
@@vladimus9749 Of course. But who's going to take them to court? After all, it's a Chinese company.
I own the B4000 SST used it for the first time last month in July, the unit did work fine, but after watching this, and the other video that surfaced where they lie about using solid state batteries, I feel cheated. Is anybody starting a class action suit or something along that line to hold them accountable for false advertisement?
I don’t think you can sue until there is true factual evidence this is not a solid state battery, so far the findings are leading more to a “type” of solid state or semi.
No one has any factual data yet just some tests that are not equal. We have just started
You got a product that works, didn't you? The real challenge will be their claimed LFP-like longevity of thousands of cycles, vs the usual NMC life of only about 800.
Good for a chilling evening
I contacted Amazon and they are going to investigate this.
They can’t investigate something that hasn’t been proven. So far no actual proof either way.
That’s what all this is about.
3:17 😂😂😂😂😂😂😂😂
Most importantly, why would anyone trust this company at all? Why can't the company clear this up? Overall the power station has sub par specs and performance. Thanks for the teardowns. I will pass on this company forever.
I thought the B4000 unit tested excellent. All my tests it passed and was a very nice unit. More premium price but a great performer. Now can you tell if this battery is truly not solid state make up?
@@johnnysweekends 602 wH for $699 is a terrible price. A 600 watt inverter? You can get almost triple these specs with something like a Pecron E1500LFP. Doesn't seem like a real solid state battery with liquid in it so why should anyone buy this?
We’ll see that’s what we are trying to figure out.
Not the price that’s their choice and if people wanna buy. But is it truly solid state make up..?
So you mean you will only buy from companies whose marketing departments don't stretch the truth at times?
Good luck with that... ;-)
@@desiv1170 If this was not hyped as solid state no one would have ever even talked about it. It is otherwise forgettable. They have to at least get that part correct. Have they?
9:13 water? 😂😂😂😂 use fire extinguisher instead designed for electric and battery fires cause they still produce flames like that
i think it first generation of solid state battery
This is not solid state. There is not much difference between this and a mobile phone battery. The only difference is the mobile phone batteries there is one big strip that’s get folded. These are smaller anode cathode sheets folded.
Because these exist out of multiple sheets it’s less prone to damage by penetrating the battery.
@@krakakapaul I don't think make much difference your still shorting out through multiple layers