-(3)What are the common problems during the use of lithium batteries in electric vehicles?

(3)What are the common problems during the use of lithium batteries in electric vehicles?
author:enerbyte source:本站 click295 Release date: 2023-11-29 09:28:12
abstract:
4、 Short battery life The usage time of lithium-ion batteries in electric vehicles is very short, and the reasons for this situation include: the battery is not fully charged; There is a large difference in the voltage capacity of a single string; A slight short circuit in...

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4、 Short battery life

The usage time of lithium-ion batteries in electric vehicles is very short, and the reasons for this situation include: the battery is not fully charged; There is a large difference in the voltage capacity of a single string; A slight short circuit in the battery pack or a large self discharge of the lithium-ion battery can cause the battery pack to run out of battery just as it is fully charged. To solve the above problems, lithium-ion batteries can be recharged or defective battery cells can be replaced.

5、 Inconsistent voltage of lithium-ion batteries

The lithium-ion battery for electric vehicles is composed of multiple battery cells combined in series and parallel, which requires high consistency of the battery cells. Although lithium-ion battery manufacturers have paired the battery cells, the voltage of each series of batteries will be inconsistent during long-term use due to battery errors, resulting in a decrease in the energy output of the entire battery pack, sudden power outages, and a sudden decrease in stroke during use The problem of not being fully charged or not being fully discharged.

6、 Environmental temperature

Lithium ion batteries have high requirements for the usage environment. If the temperature is too high or too low, it will enhance the self discharge rate of lithium-ion batteries, especially if the temperature is high, it will greatly shorten the battery's service life.

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