Patent ID: 7816457
Filing Date: 2010-10-19
Classification: C08F,H01M,Y02E

Abstract:
1. A method of producing a crosslinked poly(meth)acrylic acid nitroxide compound resulting from crosslinking of a poly(meth)acrylic acid nitroxide compound, wherein the crosslinked poly(meth)acrylate nitroxide compound is used in a secondary battery electrode and being represented by the general formula (1): wherein n Z 1 s each are an oxygen atom having one unpaired electron or comprise hydrogen atoms and oxygen atoms having one unpaired electron, R represents a hydrogen atom or a methyl group and n represents an integer of 5 to 1000000, which method is characterized by comprising a polymerization step of polymerizing a (meth)acrylic acid imino compound represented by the general formula (2): wherein Z 2 represents a hydrogen atom; and R represents the same group as R in the above general formula (1) in the presence of a crosslinking agent, the crosslinking agent being used in an amount of 0.00001 to 0.25 mole per mole of the (meth)acrylic acid imino compound, the polymerization step of producing a crosslinked poly(meth)acrylic acid imino compound resulting from crosslinking of a poly(meth)acrylic acid imino compound represented by the general formula (1a): same group as R in the above general formula (1) and n represents the same integer as n in the general formula (1), and further comprising a nitroxidation step for the nitroxidation of the above crosslinked poly(meth)acrylic acid imino compound.