Capacity loss in LiCoO2 (LiPo) cells

Batteries, Chargers, and Battery Management Systems.
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jonescg   1 GW

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Capacity loss in LiCoO2 (LiPo) cells

Post by jonescg » Mar 28 2018 3:24am

Some researchers devised a predictive model which examined how cycling your battery at lower states of charge extends its life:
151 Capacity loss in LiCoO2.pdf
(1.16 MiB) Downloaded 50 times
Basically, these things shorten the useful life of a battery:

Spending lots of time at high states of charge
Being discharged from high SOC to low SOC
Discharging the cell at rapid rates

These things extend the life of a battery:

Spending lots of time at modest SOC
Being discharged from modest to low SOCs
Discharging the cell at modest rates.

Things like discharging between 60% SOC and 0% SOC was better than discharging between 100% and 40% SOC.

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spinningmagnets   100 GW

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Re: Capacity loss in LiCoO2 (LiPo) cells

Post by spinningmagnets » Mar 28 2018 12:40pm

I agree...Tesla cars have an 8-year warranty to provide at least 80% of the new battery range, Here's how they did that:

https://www.electricbike.com/how-to-mak ... tery-last/

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