All Solid Polymer Electrolytes for Lithium Batteries

With the rapid development of energy storage power supply, electronic products and electric vehicles, the development of high energy density lithium ion battery has become one of the key research directions. At present, more widely used liquid lithium ion battery, due to the organic liquid electrolyte leakage, combustion, explosion, short circuit and other problems, poses a very big potential safety hazard. Therefore, there is an urgent need to develop lithium ion batteries with higher energy density and better safety. Compared with the existing organic liquid electrolyte, the all-solid-state polymer electrolyte (ASPE) have the advantages of higher theoretical specific capacity, stronger structural design, easier large-scale production and manufacture, and better system safety performance, which is a kind of electrolyte with wide application prospects. ASPE has played a leading role in lithium ion batteries, and researchers have done a lot of research work. This paper combines the latest scientific research progress of typical ASPE (polyether, polyester, polyurethane, polysiloxane) and the work of our group, and reviews the development of these solid polymers to develop high-performance lithium batteries. The preparation of solid electrolyte, new lithium battery, interface regulation, preparation process and other aspects have been expounded, and its future research is prospected.