Either I am not looking the right way, or there's a lack of adequate research.
I find no shortage of studies conducted on the effect of calendar aging in various temperatures on LFP based Lithium cells. There's thorough material for the effect of high/low rates of charge/discharge on cycle life as well as calendar life as well.
However, save one, or two conference papers, I find comparative comprehensive study on the effect of high/low temperatures charge/discharge on the cycle life of LiFePo4 cell.
Have you come across any such research? Are you currently working on something like this? Have you found the same lack of information? Do you have any extrapolations on what we might expect?
Hello,
as far as I know, in general, the electrochemical reactions tend to increase (speed up) as temperature increases which leads to faster kinetics and better battery efficiency in one hand. In contrast, the higher the temperature, the higher the ions and particles local movement (resonation) in the materials which can result in an increased internal resistance of the battery. Both fenomena work against each other. There is a quite optimal and realistic temperature range for normal and long-term operation that is somwhere between 10-40°C.
There is a good article about effect of aging on battery parameters, such as capacity degradation etc.
Feng Leng, Cher Ming Tan and Michael Pecht, Effect of Temperature on the Aging, Nature Scientific Reports, 2015, DOI: 10.1038/srep12967
I hope I could help.
Regards,
Bence
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