Why the energy loss of lithium battery when the external temperature is too high

Use the negative electrode of the battery as an example to explain why.

However, when the temperature reaches a certain high value, the reactivity is increased, and that layer of peeling film is not enough to avoid the reverberation between the materials. Only a thicker maintenance film is needed to avoid the occurrence of reverberation.

Because the reaction is an exothermic reaction, the energy of the battery system will be lost. For example, when performing a battery thermal test, it will clarify that the system has an exothermic reaction. If an exothermic phenomenon occurs, the energy will be lost. When the battery is placed in a warmer, the temperature of the battery system rises and becomes higher than the surrounding air when the air temperature rises to a certain time, but after a period of time, it returns to the surrounding air temperature. It indicates that when the maintenance film reaches a certain thickness, the response is interrupted. Similarly, when the temperature is too high, the positive electrode of the lithium battery will also react with the electrolyte, generating heat, and losing the battery energy.

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