Big doubt about graphene in batteries

AI Thread Summary
The discussion centers on the potential use of graphene in electric motorcycle batteries, specifically questioning the legitimacy of two batteries with different capacities but the same weight. Participants note that while lithium-ion batteries typically use graphite, graphene is often marketed as a more advanced form of graphite, leading to confusion about its actual benefits. The conversation highlights that graphene may improve energy storage and charging speed but has mixed results regarding corrosion protection. Concerns are raised about identifying the batteries and their manufacturers based on part numbers, suggesting they may be custom-packaged standard cells. Overall, the dialogue reveals skepticism about the claims surrounding graphene-enhanced batteries and emphasizes the need for careful evaluation.
Synco
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if i put graphene into a lithium battery improves the battery in anyway?
Well people i'm looking electric Motorcycles. And the same seller it's selling a 72V50Ah battery and a 72V60Ah battery, both IN THE SAME WEIGHT, every battery in the shop occurs the same. So or we have a factory mistake, scam, witchery .....or...graphene in the lithium. I have been reading that you can use graphene to improve batteries, hence, you can raise the power practically without extra weight using this extraterrestrial material.

¿True of Fake? or ¿Graphene witchery?
 

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Engineering news on Phys.org
Lithium ion batteries already incorporate graphite as a standard anode material. Most proposals for graphene enhanced lithium ion batteries start with this in mind. In the commercial sector, graphene is almost always simply a marketing term used to refer to highly exfoliated and restacked graphite, rather than a single 2D layer of carbon. There are a few benefits from this: first, the exfoliation and restacking breaks up the crystallinity of graphite, which allows the anode to incorporate a higher density of metal ions, leading to a somewhat higher energy storage capacity. Another benefit is the amorphous nature of the graphitic matrix can sometimes facilitate faster charging.

Additionally, graphene has shown mixed results as a physical barrier for corrosion protection, which is of perennial concern in battery fabrication. I don’t know of any commercialization of this effect, though (mainly because it doesn’t work so well).
 
Synco said:
¿True of Fake?
Regarding doubts, what I would worry about is not the graphene but whether I could identify the battery (and the manufacturer) based on that type number.

I couldn't.
 
Last edited:
TeethWhitener said:
Lithium ion batteries already incorporate graphite as a standard anode material. Most proposals for graphene enhanced lithium ion batteries start with this in mind. In the commercial sector, graphene is almost always simply a marketing term used to refer to highly exfoliated and restacked graphite, rather than a single 2D layer of carbon. There are a few benefits from this: first, the exfoliation and restacking breaks up the crystallinity of graphite, which allows the anode to incorporate a higher density of metal ions, leading to a somewhat higher energy storage capacity. Another benefit is the amorphous nature of the graphitic matrix can sometimes facilitate faster charging.

Additionally, graphene has shown mixed results as a physical barrier for corrosion protection, which is of perennial concern in battery fabrication. I don’t know of any commercialization of this effect, though (mainly because it doesn’t work so well).
Very useful information, thank you very much
Rive said:
Regarding doubts, what I would worry about is not the graphene but whether I could identify the battery (and the manufacturer) based on that type number.

I couldn't.
Me too
 
The battery part number may be a custom packaging of standard cells. Device manufacturers often request a minor modification or slightly different packaging if ordering a large quantity of component parts. The component supplier then assigns a unique Part No.

This not only makes it easier for the end-product manufacturer, but also makes them the only source for a replacement part; much additional profit gained that way.

Anyhow, in a Google search, the first four hits show Li-Ion Protection Boards with part numbers that correlate with some data in the photos.

https://www.google.com/search?q="207260"+battery

Now, if someone that can read Chinese can be found...

Happy Hunting,
Tom
 
Tom.G said:
Now, if someone that can read Chinese can be found...
编号 just means serial number, and 产品型号 just means product number. I imagine it’s just a misprint.
 
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