公开(公告)号：US20210218050A1

公开(公告)日：2021-07-15

申请号：US17128170

申请日：2020-12-20

Applicant: Nano and Advanced Materials Institute Limited

Inventor： Hui PAN ,  Jianping HAN ,  Yong ZHU ,  Heng LIU ,  Ou DONG ,  Shengbo LU ,  Chenmin LIU

IPC: H01M10/056 ,  H01M10/0525 ,  H01M12/08 ,  C08G18/24 ,  C08G18/81 ,  C08G18/48 ,  C08G83/00

Abstract: An amorphous composite solid electrolyte is provided that includes one or more three-dimensional branched macromolecules with a core portion and at least three arm portions connected to the core portion. Each arm portion includes a random copolymer or a block polymer comprising a first monomer and a second monomer with a molar ratio of the first monomer to the second monomer in the range from greater than 0 to less than or equal to 1. An ion conductive electrolytic solution including at least one lithium salt solution in an amount of approximately 1 mol/l to 10 mol/l is entrained within the branched macromolecule, with a weight ratio of the branched macromolecule to the ion conducive electrolytic solution equal to or lower than 1:9, such that the branched macromolecule has a swelling degree of at least 5:1 (liquid:polymer in weight) of the ion conductive electrolytic solution.