-(2)What is the impact of low temperature on lithium-ion batteries?

(2)What is the impact of low temperature on lithium-ion batteries?
author:enerbyte source:本站 click421 Release date: 2023-06-28 08:54:19
abstract:
At low temperatures, the viscosity of the electrolyte decreases. As the conductivity decreases, the activity of the active substance also decreases. It will increase the concentration difference of the electrolyte, enhance polarization, and cause early termination of charging. More importantly, the...

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At low temperatures, the viscosity of the electrolyte decreases. As the conductivity decreases, the activity of the active substance also decreases. It will increase the concentration difference of the electrolyte, enhance polarization, and cause early termination of charging. More importantly, the diffusion rate of lithium ions in the carbon negative electrode will be slower. Lithium is prone to precipitation. As the temperature decreases, the reaction rate of the electrode also decreases.

It is widely believed that the use of electrolyte additives is the most economical and effective method to improve the performance of lithium-ion batteries.

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