Method for recycling battery electrodes

A method for recycling a battery electrode, comprising the steps of:

• a) immersing an electrode, comprising a current collector and an electrode layer material coated on one side or both sides of the current collector, into a delamination solution to form a heterogeneous mixture, wherein the electrode layer material comprises a polymeric binder and an electrode active material;
• b) screening the heterogeneous mixture to separate the current collector and the electrode layer material from the delamination solution;
• c) adding the electrode layer material and a precipitation agent into an aqueous solvent to form a first suspension, and then precipitating the polymeric binder;
• wherein the delamination solution comprises a delamination agent and an aqueous solvent, wherein the delamination agent is a weak acid;
• wherein the polymeric binder comprises a copolymer comprising a structural unit derived from an acid group-containing monomer and a structural unit derived from a hydrogen bond-forming group-containing monomer (ii);
• wherein the hydrogen bond-forming group-containing monomer (ii) is selected from the group consisting of a nitrile group-containing monomer, an ester group-containing monomer, an epoxy group-containing monomer, a fluorine group-containing monomer and combinations thereof;
• and
• wherein the precipitation agent is a strong acid, a weak acid or a combination thereof.