The Effect of Temperature on the Electrolyte of Lithium Battery and the Strategy for Additive Use

Abstract

Lithium-ion batteries have found extensive applications in portable electronic devices, energy storage systems, and various other fields. However, temperature has an important impact on the performance of LIBs in all aspects. In low-temperature environments, common commercial LIBs cannot avoid the problems of sharp drops in energy and power density, increased internal resistance, and the consequences of lithium dendrites, severely limiting their applications in key fields such as aerospace and polar exploration. On the other hand, high-temperature environments lead to rapid ion migration and electrochemical reactions, causing more pronounced exothermic side reactions, ultimately resulting in thermal runaway of the battery. The simplest and fastest way to solve these problems is to add additives to the electrolyte. Therefore, this article first introduces the effects of different temperatures on LIBSs electrolytes and their properties. Then, the application of different additives in LIBs was emphasized, aiming to provide valuable insights for future research on lithium-ion battery performance.