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:
Apr. 23, 2019
Filed:
Sep. 17, 2014
National Institute of Advanced Industrial Science and Technology, Chiyoda-ku, Tokyo, JP;
Atsushi Sakuda, Ikeda, JP;
Tomonari Takeuchi, Ikeda, JP;
Noboru Taguchi, Ikeda, JP;
Hikari Sakaebe, Ikeda, JP;
Kuniaki Tatsumi, Ikeda, JP;
Abstract
The sulfide of the present invention comprises an amorphous (lithium) niobium sulfide having an average composition represented by formula (1): LiNbS(wherein 0≤k1≤5; 3≤n1≤10; and when n1≥3.5, k1≤0.5), or an amorphous (lithium) titanium niobium sulfide having an average composition represented by formula (2): LiTiNbS(wherein 0≤k2≤5; 0<m2<1; 2≤n2≤10; and when n2≥3.5, k2≤1.5). The sulfide of the present invention is a material that is useful as a cathode active material for lithium batteries, such as lithium primary batteries, lithium secondary batteries, and lithium ion secondary batteries, and has a high charge-discharge capacity, high electrical conductivity, and excellent charge-discharge performance.