-Focus on safety issues of lithium-ion battery packs

Focus on safety issues of lithium-ion battery packs
author:enerbyte source:本站 click443 Release date: 2023-06-26 08:52:41
abstract:
Pay attention to the safety of lithium-ion batteries. Lithium electric heating control? At the 2019 Power lithium-ion Battery Skills Summit of the China Electric Vehicle Hundred People Forum held from January 11th to 13th, experts and scholars did not share various lithium-i...

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Pay attention to the safety of lithium-ion batteries. Lithium electric heating control?

At the 2019 Power lithium-ion Battery Skills Summit of the China Electric Vehicle Hundred People Forum held from January 11th to 13th, experts and scholars did not share various lithium-ion battery foresight skills as before, but instead focused on the safety of lithium-ion batteries.

The safety of lithium-ion battery packs is attributed to the fact that the battery is out of control. In addition to normal charging and discharging reactions, lithium-ion batteries also have potential side reactions. When the battery overheats or the charging voltage is too high, these side uses will be triggered and release a large amount of heat. If the heat is not discharged in a timely manner, the temperature and pressure of the battery will also rise sharply, forming a vicious cycle, ultimately leading to heat loss and safety accidents.

Unfortunately, from the lithium battery response mechanism, the hidden danger of Thermal runaway of the single battery cannot be erased. The safety function of the single battery can only be improved through such techniques as thermal control on the electrode (PTC) electrode, ceramic coating appearance, charge protection additives, voltage sensitive membranes, and the comprehensive application of flame retardant electrolyte, but can not be eliminated.

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