The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 27, 2025
Filed:
Nov. 08, 2021
Mitsui Mining & Smelting Co., Ltd., Tokyo, JP;
Mitsui Mining & Smelting Co., Ltd., Tokyo, JP;
Abstract
A sulfide-based solid electrolyte particle having a crystal phase of a cubic argyrodite-type crystal structure composed of Li, P, S and a halogen (Ha), wherein good contact between the sulfide-based solid electrolyte particles and positive or negative electrode active material particles is secured and improvements in the rate characteristic and the cycle characteristic are attained. The ratio (Z/Z) of an element ratio Zof the halogen (Ha) at the position of 5 nm in depth from the particle surface to an element ratio Zof the halogen (Ha) at the position of 100 nm in depth from the particle surface is 0.5 or lower and the ratio (Z/Z) of an element ratio Zof oxygen to the total Zof element ratios of P, S, O, and the halogen (Ha) at the position of 5 nm in depth from the particle surface is 0.5 or higher, as measured by XPS.