Will lithium batteries in electric vehicles explode if they heat up while charging?

Introduction Will an electric vehicle's lithium battery explode from the heat generated during charging? There are two situations in which an electric vehicle's lithium battery generates heat, one is discharging and the other is charging. Process of charging and usi

Will lithium batteries in electric vehicles explode if they heat up while charging?

Lithium battery of electric vehicleHeatThere are two situations, one is discharging and the other is charging. Electric vehicle batteriesgenerate a lot of heat during charging and use. If they are not evacuated in time, the temperature will be too high or even spontaneous combustion.

The most common cause of lithium battery explosions in electric vehicles are errors during the charging process. In electronic devices using lithium batteries, there is often relevant software that defines the amount of energy to which the lithium battery should be charged, as well as the charging speed.

If the relevant parameters are incorrect, the compounds in the lithium battery will become unstable, leading to a problem that researchers call "thermal runaway," which will cause combustion orth explosion.

Long-term crystal formation in lithium batteries can lead to short circuits. At this point, the battery cells discharge rapidly, generating a large amount of heat and burning the separators. High temperature will cause the electrolyte to decompose into gas. When the pressure is too high, the battery core will explode.

If it is an extreme situation, such as: extrusion, perforation, fire, high temperature, etc. Whether it is a regular battery or an irregular battery, it may explode. When using, the general temperature cannot exceed 60 degrees Celsius. Additionally, in low temperature environments, chemical reactions inside the battery will slow down and affect battery performance. But there will be no explosion.

Detailed information:

< p>First of all, keeping lithium-ion batteries properly charged and discharged can extend battery life. Keeping the lithium-ion battery power between 10% and 90% is beneficial to protect the battery. This means that when charging batteries of digital products such as mobile phones and laptops, it is not necessary to reach the maximum value.

If digital products equipped with lithium-ion batteries are exposed to sunlight or stored in hot cars, it is best to keep these products turned off because if the operating temperature exceeds 60 degrees Celsius, the lithium battery -ion ​​will accelerate aging.

Baidu Encyclopedia - Lithium battery

Ternary lithium batteryThe thermal runaway temperature is about 200 degrees .

The thermal runaway temperature of terna lithium batteriesire is basically around 200 degrees. Regarding the spontaneous combustion incidents of new energy vehicles, most of them are ternary lithium batteries. Therefore, for hot areas, the risk of spontaneous combustion of ternary lithium batteries is higher.

Ternary polymer lithium batteries refer to lithium batteries that use lithium-nickel-cobalt-manganese or lithium-nickel-cobalt aluminate as the cathode material. There are many types of cathode materials for lithium-ion batteries, mainly lithium-cobalt acid oxide. , lithium manganate, lithium nickelate, ternary materials, lithium iron phosphate, etc.

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