The effect of Lithium Salts on the Stability of Plastic Li-ion Batteries with Bonded Microporous Separators at Room and Elevated Temperatures

摘要

The detrimental effect of elevated temperatures on Li-ion battery capacity, internal resistance and internal gas pressure is well-documented. Several recent reports have shown that such degradative processes can be substantially alleviated by a judicious choice of reactive electrolyte additives which form a more stable solid-electrolyte interphase (SEI) than do typical electrolyte components, such as ethylene carbonate, or form it without evolving any gaseous byproducts.