Research progress in overcharge resistance performance of Li-ion batteries

During the application of the series-parallel connection of batteries,the overcharge resistance performance of Li-ion batteries paid an important role for the normal operation.The internal reaction mechanism and protection means of the battery during overcharge were summarized.Research results indicated that the establishment of internal protect-mechanism and selection of proper cathode material with good thermal stability could improve the overcharge resistance performance of the battery.A proper charging model and avoiding of high rate charging might overcome the explosion of the Li-ion batteries.