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:
Aug. 01, 2023
Filed:
Sep. 26, 2018
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Norihisa Yamamoto, Osaka, JP;
Yohei Uchiyama, Hyogo, JP;
Tatsuya Akira, Osaka, JP;
Kazuro Hayashida, Osaka, JP;
Abstract
Negative electrode active material particles comprise base particles having: a silicate phase containing LiO, SiO, at least one oxide selected from MO, MO, MO, and MO(where M, M, M, and Mare elements other than alkali metals, alkali earth metals, and Si), and a discretionary component MO (where M is an alkali earth metal); and silicon particles dispersed in the silicate phase. The element contents for the elements contained in the silicate phase are: 3-33 mol % of Li; 40-78 mol % of S; and 1-40 mol % of M, M, M, and M. If MO is contained, the M content in the silicate phase is 1-10 mol %.