| abstract |
The invention discloses a polymer composite membrane containing ligand-modified clusters, a gel polymer electrolyte, a preparation method and an application, wherein the ligands are HO-R 1 -CH 3 , HOOC-R 2 -NH 2 and one or more of HO-[R 3 -O] n -H, wherein R 1 , R 2 and R 3 are aliphatic hydrocarbon groups or aromatic hydrocarbon groups, and the condensation of ligand-modified clusters provided by the invention In the gel polymer electrolyte, the ligand-modified titanium oxide clusters are used as lithium ion conductors. The gel polymer electrolyte uses less electrolyte, the transfer speed of lithium ions is significantly improved, and the electrochemical stability window can be as high as 5V, which is not easy to interact with lithium metal negative electrodes. Side reactions occur, which increases the stability of the interface, and at the same time improves the energy density and cycle life of the battery and many other properties. |