Patent ID: 11894561
Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A secondary battery, comprising:
a cathode comprising a cathode current collector and a cathode mixture layer containing a cathode active material;
an anode comprising an anode current collector and coating layer; and
a non-aqueous electrolyte containing a non-aqueous solvent and a lithium salt which has been dissolved in the non-aqueous solvent,
wherein:
a surface of the anode current collector is coated with the coating layer,
the coating layer consists of an alkaline earth metal fluoride,
the cathode active material includes a lithium composite oxide having a crystal structure which belongs to a space group R-3m or C2/m, and the lithium composite oxide contains Ni and Co,
the anode current collector is made of a metal material, the metal material including copper or an alloy thereof,
the coating layer is directly disposed on the surface of the anode current collector,
during charge, a lithium metal represented by the formula Li is deposited on the anode, and
during discharge, the lithium metal represented by the formula Li is dissolved in the non-aqueous electrolyte.