Patent ID: 11876229
Assignee: LG ENERGY SOLUTION, LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A negative electrode comprising:
a current collector;
a negative electrode active material layer disposed on at least one surface of the current collector, comprising a silicon-based active material and a conductive material, and containing no binder polymer; and
a coating layer disposed on a surface of the negative electrode active material layer and at least a part of inside of pores of the negative electrode active material layer, and containing a coating layer polymer forming a chemical bond with silicon (Si) of the silicon-based active material,
wherein a content of the coating layer polymer is 0.3-2 parts by weight based on 100 parts by weight of the negative electrode active material layer, and
the coating layer polymer comprises a mixture of polyacrylic acid with polyvinyl alcohol.