LITHIUM ION SECONDARY BATTERY

摘要

A lithium ion secondary battery including a positive electrode layer, a negative electrode layer, and a solid electrolyte layer is provided. The positive electrode layer includes a positive electrode current collector layer and a positive electrode active material layer. Positive electrode active material layer includes a positive electrode active material. The negative electrode layer includes a negative electrode current collector layer and a negative electrode active material layer. The negative electrode active material layer includes a negative electrode active material. Solid electrolyte layer between the positive and negative electrode active material layers includes a solid electrolyte. At least one of a ratio of a particle diameter of the solid electrolyte to a particle diameter of the positive electrode active material and a ratio of the particle diameter of the solid electrolyte to a particle diameter of the negative electrode active material is in the range of 1/10 to 1/3.

主权项

1. A lithium ion secondary battery comprising a positive electrode layer, a negative electrode layer, and a solid electrolyte layer, wherein:
the positive electrode layer includes a positive electrode current collector layer and a positive electrode active material layer; the positive electrode active material layer includes a positive electrode active material; the negative electrode layer includes a negative electrode current collector layer and a negative electrode active material layer; the negative electrode active material layer includes a negative electrode active material; the solid electrolyte layer is positioned between the positive electrode active material layer and the negative electrode active material layer and includes a solid electrolyte; and at least one of a ratio of a particle diameter of the solid electrolyte to a particle diameter of the positive electrode active material and a ratio of the particle diameter of the solid electrolyte to a particle diameter of the negative electrode active material is in the range of 1/10 to 1/3.