The Research Progress in Self-Healing Polymer Electrolytes for Lithium-Ion Batteries
Polymer electrolytes suffer from cracks when subjected to external force due to insufficient toughness,and the crack can induce the growth of lithium dendrites,resulting in short circuit of the battery and inducing safety problems.Introducing self-healing materials into polymer electrolytes,the dynamic network existing at the fracture interface can endow the materials with self-healing properties and prolong the service life of polymer electrolytes.The development history,advantages and problems of polymer electrolyte materials are summarized.The classification of reversible non-covalent bonds and dynamic covalent bonds is introduced according to different healing mechanisms.The research progress of self-healing electrolytes based on hydrogen bond network and dynamic covalent bonds in lithium-ion batteries in recent years is summarized.Finally,the existing problems and future development directions of self-healing polymer electrolyte are prospected.
万方数据
维普
