Anode and battery

摘要

An anode and a battery capable of improving battery characteristics such as cycle characteristics are provided. A coating containing at least one from the group consisting of oligomers having a polyene structure and derivatives thereof is provided on the surface of an anode active material layer. The anode active material layer contains a substance containing Si or Sn as an element as an anode active material. By the coating, oxidation of the anode active material layer is inhibited, and decomposition reaction of the electrolytic solution is inhibited.

主权项

1. An anode comprising an anode active material layer and a coating layer, the coating layer containing at least one compound selected from the group consisting of an oligomer having a polyene structure and derivatives thereof,
wherein the coating layer is in contact with a surface of the anode active material layer, wherein the anode active material layer comprises an anode active material selected from the group consisting of: silicon; a compound of silicon containing oxygen or carbon; a silicon alloy that consists of silicon and at least one element selected from the group consisting of tin, nickel, copper, iron, cobalt, manganese, zinc, indium, silver, titanium, germanium, bismuth, antimony and chromium; tin; a compound of tin containing oxygen or carbon; and a tin alloy that consists of tin and at least one element selected from the group consisting of silicon, nickel, copper, iron, cobalt, manganese, zinc, indium, silver, titanium, germanium, bismuth, antimony and chromium, and wherein the oligomer is derived from heat treatment of at least one of polyvinyl chloride, polyvinyl alcohol, cyclooctatetaene, and poly [bis(benzylthio)acetylene].