The video is correct in regards to the Cathode/Anode labeling. When discharging, the negative terminal is the anode because the electron leaves from there. When charging, the electron is going into the negative terminal. The anode and cathode can be either the negative or positive terminal in a device, but it depends on the situation. The exact definition of which terminal is the cathode or anode doesn't have to due with polarity, but rather with the chemistry redox reaction; i.e., which terminal is the oxidizing component, and which component is the reducing component. You'll have to read up on redox reactions to totally understand this. Most often it probably works like this though: if the electro-chemical device is producing electricity, the anode is negative, and if it's consuming electricity (even passively like a diode), the anode is positive. Note that with motors, this isn't an issue because chemistry isn't involved.
Er the first sentence: "The most widely used battery in electrical vehicles is the lead acid battery" - no, not in 2022 or for many years. It is the most widely used in *petrol/diesel* vehicles due to its power performance characteristics, specifically suitability to supply high currents for short periods to turn the engine over and then charge slowly once the combustion engine is working.
Mam help me i conused In lead acid battery Anode Is positive or negative.? some vide channel say Anode is positive but, more video channel (including your video) say Anode is negative.! Which one is correct.? Plz help me.!
When the lead acid battery is DISCHARGING the anode is negative because it is losing electrons to the cathode (+), and when the battery is CHARGING the anode becomes positive because it's gaining electrons from the cathode (-).
You explain the process of discharging and charging a lead-acid battery well enough, but you have one detail wrong. During the charging process, water dissociates into positive hydrogen ions and negative oxygen ions. In practice, the negative ion of oxygen is not stable in an acidic environment such as a solution of sulfuric acid, because it is too basic in nature, so it would immediately be united by the present positive hydrogen ions into water. Which returns the reaction step to the beginning. The process is different, but the essence is actually the same. When charging the battery, at the cathode, lead sulfate is reduced by the arrival of electrons from the external negative terminal of the current source, into elemental lead, during which the sulfate anion moves from the electrode to the electrolyte. Due to the increase in the concentration of negative sulfate ions, the electrolyte has a strong tendency to generate positive ions, so water is oxidized at the anode to oxygen and positive hydrogen ions that increase the activity of the acid in the electrolyte, and the oxygen binds to the lead released from the lead sulfate salt, forming PbO2. At the anode, two electrochemical reactions take place in parallel, the oxidation of lead sulfate to a lead positive ion and a sulfate radical that strongly takes electrons from hydrogen from water molecules, building positive hydrogen ions and nascent oxygen, another water molecule is also oxidized by the positive lead ion taking electrons from the molecule water and generate positive hydrogen ions, where it binds to two nascent oxygen atoms and builds PbO2.
this is NOT an explanation of the working principle. It is simply an analysis of the chemical reaction involved. In order for it to be a working principle video, the specifics of the reactions should have been abstracted, and the importance of the separator should have been explained. It should also have been mentioned that H2SO4 completely dissolves into SO4(2-) + 2H(+) REGARDLESS of whether or not it is discharging. This is of vital importance to know what the battery is doing when it is neither charging nor discharging. Not a good explanation. People watching this will simply copy the chemical reaction without understanding the actual principle of how a battery works.
Answer to your question is that she is presenting "Conventional" theory which was proven wrong about 1900. We should stop teaching it in our schools and follow "Electron" theory with is current fact. Hopefully Engineers will stop using "Conventional".
Basically, the generator on the other end is more strongly negative, so the negative terminal of the battery is actually positive with respect to the generator.
I agree with your statement and also wish that since the discovery of electron flow 100 years ago that our schools and textbooks and teaching would focus on "Electron Flow" (cathode negative and anode positive) and give up on what is called "Conventional Current" which was proven wrong. This is a "conventional" girl. Also, as Suresh points out as well, she has the lead and lead-dioxide (aka peroxide) reversed. Hopefully she reads these comments and corrects her otherwise nicely done presnetation.
No my friend. An anode in a battery is the electrode that serves as the source of electrons in a electrochemical cell. So anode is (-) at a battery discharging because serves electrons. This is the explanation with real current and not the conventional.
No, wich electric equipment produce curent it's anode is negative Wich electric equipment consume the current it's anode is positive Battery is curret produce electric equipment.!
lead cannot accept more electricity or cannot stay long, much better is the cooper and the carbon using are needs active ,,long life of battery extra volts given and more force
The video is correct in regards to the Cathode/Anode labeling. When discharging, the negative terminal is the anode because the electron leaves from there. When charging, the electron is going into the negative terminal. The anode and cathode can be either the negative or positive terminal in a device, but it depends on the situation. The exact definition of which terminal is the cathode or anode doesn't have to due with polarity, but rather with the chemistry redox reaction; i.e., which terminal is the oxidizing component, and which component is the reducing component. You'll have to read up on redox reactions to totally understand this. Most often it probably works like this though: if the electro-chemical device is producing electricity, the anode is negative, and if it's consuming electricity (even passively like a diode), the anode is positive. Note that with motors, this isn't an issue because chemistry isn't involved.
nice one champ
Bahi itna Acha sa explain karaga
I will read this once I come back from college.
Thanks for your explanation. Concerning my knowledge, the anode and cathode were reversed in this description.
I am very confident about any chemical rxns after watching this video
I don't know about anyone.. But my doubts are 100 percent clear after watching this video.. Thanks for this coincise but clear EXPLAINATION ✨
It was really explicit, thank you so much, really got helped
After a long time my concept clear to see this video thanks a lot
Glad it helped!
Er the first sentence: "The most widely used battery in electrical vehicles is the lead acid battery" - no, not in 2022 or for many years.
It is the most widely used in *petrol/diesel* vehicles due to its power performance characteristics, specifically suitability to supply high currents for short periods to turn the engine over and then charge slowly once the combustion engine is working.
Thanks for your valid information ma'am ❤
Congratulations! The video is excellent.
I don't know how I should I thank you 🔥🔥👍👍
Ahhhh I hate chemistry... but your way of teaching is nice. I am just too dumb.
In some other videos cathode is spongy lead (pure lead) Anode is lead peroxide...pl clarify
This video is correct as the same is written on other "major websites" like science direct.
Must be really bright in India, because she gave info so fast.
Very nicely explained.. Appreciate it..
does PbSO4 always reversible reaction during charging? can it be sperated as Pb and SO4?
Nice lecture Mam, thanks.
Good explanation..
Voltage is pressure and Tesla said electrons do no exist. Can we confirm the chemistry?
If so how? Regards DC
Mam help me i conused In lead acid battery Anode Is positive or negative.? some vide channel say Anode is positive but, more video channel (including your video) say Anode is negative.!
Which one is correct.?
Plz help me.!
When the lead acid battery is DISCHARGING the anode is negative because it is losing electrons to the cathode (+), and when the battery is CHARGING the anode becomes positive because it's gaining electrons from the cathode (-).
Thanks this helped immensely😊💞
What will happens if electrolyte removed from a charged battery
What makes the H2SO4 split in the first place?
Pb02 is Anode when charge condition and Pb as cathode
You explain the process of discharging and charging a lead-acid battery well enough, but you have one detail wrong. During the charging process, water dissociates into positive hydrogen ions and negative oxygen ions. In practice, the negative ion of oxygen is not stable in an acidic environment such as a solution of sulfuric acid, because it is too basic in nature, so it would immediately be united by the present positive hydrogen ions into water. Which returns the reaction step to the beginning. The process is different, but the essence is actually the same. When charging the battery, at the cathode, lead sulfate is reduced by the arrival of electrons from the external negative terminal of the current source, into elemental lead, during which the sulfate anion moves from the electrode to the electrolyte. Due to the increase in the concentration of negative sulfate ions, the electrolyte has a strong tendency to generate positive ions, so water is oxidized at the anode to oxygen and positive hydrogen ions that increase the activity of the acid in the electrolyte, and the oxygen binds to the lead released from the lead sulfate salt, forming PbO2. At the anode, two electrochemical reactions take place in parallel, the oxidation of lead sulfate to a lead positive ion and a sulfate radical that strongly takes electrons from hydrogen from water molecules, building positive hydrogen ions and nascent oxygen, another water molecule is also oxidized by the positive lead ion taking electrons from the molecule water and generate positive hydrogen ions, where it binds to two nascent oxygen atoms and builds PbO2.
this is NOT an explanation of the working principle. It is simply an analysis of the chemical reaction involved. In order for it to be a working principle video, the specifics of the reactions should have been abstracted, and the importance of the separator should have been explained. It should also have been mentioned that H2SO4 completely dissolves into SO4(2-) + 2H(+) REGARDLESS of whether or not it is discharging. This is of vital importance to know what the battery is doing when it is neither charging nor discharging. Not a good explanation. People watching this will simply copy the chemical reaction without understanding the actual principle of how a battery works.
Excellent explanation, thanks for the video
Glad it was helpful!
Y'all giving wrong information . Anode is positive. There is nobody on YT with the correct explanation of lead acid battery.
Bro are you in march or what 😅
You are now in upper classes.... Keep good eyes on your chemestry topics 😅 anode is negative ( at least in this cell ) ( as much as i know )
@@gojosatoru7jjk anode is positive because during recharging it acts like electrolytic cell
Thank you mame
Ensure correct polarity
Where is the separater in charging prosses and dis charing and what is it working
Clarify please. Why your illustration during charging has the Positive as the anode.
Answer to your question is that she is presenting "Conventional" theory which was proven wrong about 1900. We should stop teaching it in our schools and follow "Electron" theory with is current fact. Hopefully Engineers will stop using "Conventional".
Super ma'am
Why does that reaction happen simply because a load is connected or a circuit completed?
Google says that anode means positive and cathode means negative
Anode and cathode changes whenever between electrochemical and electrolytic cell reaction
MAKE CORRECTION, ANODE IS LEAD OXIDE AND CATHODE IS LEAD SPOUNGE
Battery vehicles use mostly lithium ion
Good..!
But don't you think anode is the positive terminal...??
Only on charging is positive. At the discharging is negative because serves electrons
Mantap sis
Thanks 🎉❤
02:40 how does these electrons move to the Anode AGAINST the negative terminal of the charger?
Basically, the generator on the other end is more strongly negative, so the negative terminal of the battery is actually positive with respect to the generator.
Isn't Hydrogen gas produced in the reaction!??
volt?
Anode is Lead peroxide and cathode is spong lead
Nice video
Thank You
@0:54 anode (-) cathode (+) pl correct it
I agree with your statement and also wish that since the discovery of electron flow 100 years ago that our schools and textbooks and teaching would focus on "Electron Flow" (cathode negative and anode positive) and give up on what is called "Conventional Current" which was proven wrong. This is a "conventional" girl. Also, as Suresh points out as well, she has the lead and lead-dioxide (aka peroxide) reversed. Hopefully she reads these comments and corrects her otherwise nicely done presnetation.
No my friend. An anode in a battery is the electrode that serves as the source of electrons in a electrochemical cell. So anode is (-) at a battery discharging because serves electrons. This is the explanation with real current and not the conventional.
PbO2 is anode
No, just pb
In Lead Acid Battery, PbO2 is Anode and Pb is Cathode
Nah...Google it
No, wich electric equipment produce curent it's anode is negative
Wich electric equipment consume the current it's anode is positive
Battery is curret produce electric equipment.!
lead cannot accept more electricity or cannot stay long, much better is the cooper and the carbon using are needs active ,,long life of battery extra volts given and more force
kindly don’t give false information. anode is lead peroxide cathode is sponge lead
You are wrong
@@MohsinKhan-ig1hjhe is right
You are wrong
He is right. (Idk anything. Just doing the cycle of dialogues)@@itzsmackeryt9863
Yes
😀👍👍👍
Bkl samaj nhi aya
Wrong content
Goof
?
Tharkuri mundame