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:
Sep. 15, 2020
Filed:
Jun. 21, 2018
Mitsutoshi Otaki, Susono, JP;
Norihiro Ose, Sunto-gun, JP;
Shigenori Hama, Sunto-gun, JP;
Kazuyuki Taniguchi, Annaka, JP;
Yoshiyasu Yamada, Tomioka, JP;
Tetsuo Nakanishi, Annaka, JP;
Mitsutoshi Otaki, Susono, JP;
Norihiro Ose, Sunto-gun, JP;
Shigenori Hama, Sunto-gun, JP;
Kazuyuki Taniguchi, Annaka, JP;
Yoshiyasu Yamada, Tomioka, JP;
Tetsuo Nakanishi, Annaka, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
Disclosed is an all-solid-state lithium ion secondary battery excellent in cycle characteristics. The battery may be an all-solid-state lithium ion secondary battery, wherein an anode comprises anode active material particles, an electroconductive material and a solid electrolyte; wherein the anode active material particles comprise at least one active material selected from the group consisting of elemental silicon and SiO; and wherein, for the anode active material particles, a value A obtained by the following formula (1) is 6.1 or more and 54.8 or less:  Formula (1)where Sis a BET specific surface area (m/g) of the anode active material particles; dis a median diameter D50 (μm) of the anode active material particles; and D is a density (g/cm) of the anode active material particles.