The temperature of the battery belongs to the hard injury, and since the temperature dependence of the electrode reaction occurs at the electrode and the electrolyte phase interface, the temperature of the temperature on the performance of the battery is most pronounced in all environmental factors. Under low temperature conditions, the rate of electrode reacting decreases, even the reaction is terminated, and the performance of the battery is thus significantly decreased, and even normally used. When the temperature is raised, the electrode reaction is intensified.
However, the side reactions of the electrode / electrolyte phase interface are also intensified, and these side reactions often have a large failure to the battery, and the performance of the battery is affected. Therefore, the optimum temperature of the battery should be the temperature that is most advantageous for the electrode without significant side reactions. Liquid lithium-ion battery operating temperature range is typically in -10 to 45 ¡ã C, the lowest operating temperature is generally not less than -20 ¡ã C, and the maximum operating temperature is generally not more than 60 ¡ã C.
For a lithium-ion battery for liquid electrolytes, the main pathway to broaden its operating temperature range is to expand the process of expanding the electrolyte, and increase the electrical conductivity of the electrolyte and the stability under high temperature conditions. For solid electrolytes, it is necessary to broaden its operating temperature range, and it is necessary to improve the conductivity of electrolyte at room temperature or even low temperature conditions and reduce the interface impedance between the electrode materi
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