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:
Oct. 14, 2025
Filed:
Nov. 03, 2021
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Hiroshi Tsubouchi, Nagoya, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
Provided is an all-solid battery that can reduce electrical resistance after a cycle. The all-solid battery includes a cathode layer, an anode layer, and a solid electrolyte layer. The solid electrolyte layer is formed between the cathode layer and the anode layer. The anode layer contains a Si-based active material. The Si-based active material is a secondary particle having a plurality of primary particles. When a sum of void volume inside the primary particles included in the secondary particle is set to Vand a sum of void volume between the primary particles included in the secondary particle is set to V, a ratio of the Vto the Vcalculated by V/Vis 0.8 or more and 5 or less.