Binder for battery electrodes, and electrode and battery using same

A battery electrode binder comprising a polymer comprising:

• (I) structural units derived from a hydroxyl group-containing (meth)acrylate monomer (A) represented by the general formula,
• wherein R1 is hydrogen or a linear or branched alkyl group having 1 to 4 carbon atoms, R2 and R3 each is hydrogen or a linear or branched alkyl group having 1 to 4 carbon atoms, and n is an integer of 1 to 30,
• (II) structural units derived from a polyfunctional (meth) acrylate monomer (B), and
• (III) structural units derived from a reactive surface active agent (C) which is at least one selected from a reactive anionic surface active agent, a reactive nonionic surface active agent, a reactive cationic surface active agent and a reactive amphoteric surface active agent,
• wherein the reactive nonionic surface active agent is at least one selected from polyoxyalkylene alkenyl ether, polyoxyethylene alkyl propenylphenyl ether and α-hydro-ω-(1-alkoxymethyl-2-(2-propenyloxy)ethoxy)-poly(oxy-1,2-ethanediyl), and
• the monomers used in the polymer do not have a carbon-carbon double bond including an aromatic carbon-carbon double bond and a carbon-carbon triple bond, other than ethylenically unsaturated double bonds contained in the (meth)acrylic group.