Patent ID: 9692073
Date: 2017-06-27
CPC Classifications: B01J,C08F,C08J,C08L,H01B,H01M,Y02E

Claim:
1. An electrolyte material, which comprises a polymer (H) having a unit (A) which has an ion exchange group and in which all hydrogen atoms (excluding H a unit (B) which has a 5-membered ring and in which all hydrogen atoms bonded to carbon atoms are substituted by fluorine atoms, and a unit (C) which has neither an ion exchange group nor a ring structure, has an ether bond, and has an ether equivalent of at most 350 as established by the following formula (I) and in which all hydrogen atoms bonded to carbon atoms are substituted by fluorine atoms: wherein at least one type of the unit (A) is a unit having a group represented by the following formula (g1): wherein Q 21 is a perfluoroalkylene group which may have an etheric oxygen atom, Q 22 is a single bond or a perfluoroalkylene group which may have an etheric oxygen atom, Y 2 is a fluorine atom or a monovalent perfluoro organic group, R f2 is a perfluoroalkyl group which may have an etheric oxygen atom, X 2 is an oxygen atom, a nitrogen atom or a carbon atom, provided that when X 2 is an oxygen atom, b=0, when X 2 is a nitrogen atom, b=1, and when X 2 is a carbon atom, b=2.