| abstract |
The purpose of the present invention is to provide: a lithium secondary battery having excellent output characteristics, long-term cycle characteristics, and low electrode resistance; an electrode for a lithium-ion capacitor; and an electrolyte. This electrode protective film forming agent (D) contains a compound (C) having: at least one bond (a) selected from a group comprising a urethane bond (a1), a urea bond (a2), an allophanate bond (a3) and a biuret bond (a4); a polymerizable unsaturated bond (b); and a group (g) represented by general formula (1). [M is a monovalent metal ion, and A represents -CO 2 n - ,-SO 3 n - , -OPO(OR 1 )O - , -B(O - ) 2 , -B(OR 2 )O - or -B(OR 3 ) 3 n - (R 1 to R 3 are each a hydrocarbon group with a carbon number of 1 to 10; and there is a plurality of R 3 , each of which may be the same or different, and may combine with each other to form a ring.)] |