Positive electrode material containing a composite of sulfur and a porous conductive substance, and glass or glass ceramic particles for lithium ion batteries, and lithium ion battery

摘要

A lithium-ion battery cathode material includes a composite of sulfur and porous carbon, and glass particles and/or glass ceramic particles that satisfy a composition represented by the following formula (1),
LiaMbPcSd  (1)
wherein M is B, Zn, Si, Cu, Ga, or Ge, and a to d are the compositional ratio of each element, and satisfy a:b:c:d=1 to 12:0 to 0.2:1:2 to 9.

主权项

1. A lithium-ion battery cathode material comprising a composite of sulfur and a porous conductive substance, and at least one type of particles selected from the group consisting of glass particles and glass ceramic particles, wherein the glass particles and the glass ceramic particles have a composition represented by a formula (1), and the sulfur is present on a surface of the inside the pores of the porous conductive substance,
LiaMbPcSd  (1) wherein M is B, Zn, Si, Cu, Ga, or Ge, and a to d are a compositional ratio of each element, and satisfy a:b:c:d=1 to 12:0 to 0.2:1:2 to 9.