LITHIUM BATTERY, POLYMER ELECTROLYTE, ELECTROLYTE MATERIAL, DI(METH)ACRYLIC ESTER, AND DI(METH)ACRYLATE POLYMER

摘要

In a lithium battery comprising a positive electrode, a negative electrode and a gel electrolyte; the gel electrolyte is composed of at least an ester-group or ether-group aprotic polar solvent, a lithium salt and a polymeric compound, and the polymeric compound comprises a polymer of at least one compound among those expressed by an equation (I) and an equation (II). (k: zero or number of 1 or more, m: number of 1 or more, R1:CpH2p, R2:CqH2q, p NOTEQUAL q, p & q: integer of 1 or more, A: CH2=CH-CO- or CH2=C(CH3)-CO-, X: n-valent combination group (n: integer ranging from 1 to 4), r: zero or number of 1 or more, s: number of 1 or more, R3: CtH2t, R4: CuH2u, t NOTEQUAL u, t & u: integer of 1 or more)