US 12,074,285 B2
Aqueous polymer electrolyte for lithium rechargeable battery
Jun Yang, Shanghai (CN); Zhixin Xu, Shanghai (CN); Yixi Kuai, Shanghai (CN); and Koji Suto, Mishima (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP); and SHANGHAI JIAO TONG UNIVERSITY, Shanghai (CN)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP); and SHANGHAI JIAO TONG UNIVERSITY, Shanghai (CN)
Filed on Dec. 7, 2021, as Appl. No. 17/457,971.
Claims priority of application No. 202011460961.2 (CN), filed on Dec. 11, 2020.
Prior Publication US 2022/0190385 A1, Jun. 16, 2022
Int. Cl. H01M 10/056 (2010.01); H01M 10/052 (2010.01); H01M 10/0565 (2010.01); H01M 10/44 (2006.01)
CPC H01M 10/0565 (2013.01) [H01M 10/052 (2013.01); H01M 10/44 (2013.01); H01M 2300/0082 (2013.01); H01M 2300/0085 (2013.01)] 8 Claims
OG exemplary drawing
 
1. An aqueous polymer electrolyte, comprising:
a polymer electrolyte; and
water,
wherein the polymer electrolyte is a polymer obtained by polymerizing a single lithium salt with a short-chain dimethylsiloxane or with single fluoro ether,
wherein the short-chain dimethylsiloxane or the single fluoro ether is contained in 20 mol % or less relative to the total amount of single substances,
wherein the single lithium salt is selected from the group consisting of lithium (p-vinylbenzenesulfonyl)(trifluoromethylsulfonyl)imide (LiSTFSI), lithium p-styrene sulfonyl N-[(trifluoromethyl)oxide[[(trifluoromethyl)sulfonyl group]amino]-4-sulfonyl group]-imide (LiSsTFSI), and lithium sulfonyl(trifluoromethane sulfonyl)imide methacrylate (LiMTFSI), represented by the following formulae:

OG Complex Work Unit Chemistry
and
wherein the short-chain dimethylsiloxane and the single fluoro ether are respectively represented by the following formulae (A) and (B):

OG Complex Work Unit Chemistry
wherein, in Formula (A) and Formula (B), n is an integer of 1 to 10, and in Formula (B), RF is perfluoroalkyl represented by —(CF2)mCF3, and m=0, 1, 2, or 3.