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. 17, 2018
Filed:
May. 10, 2013
Santoku Corporation, Kobe-shi, Hyogo, JP;
Hiroki Sakaguchi, Tottori, JP;
Hiroyuki Usui, Tottori, JP;
Tadatoshi Murota, Kobe, JP;
Masatoshi Kusatsu, Kobe, JP;
SANTOKU CORPORATION, Hyogo, JP;
Abstract
Provided are an anode active material for lithium ion rechargeable batteries and an anode, which are capable, when used in a lithium ion rechargeable battery, of providing excellent charge/discharge capacity and cycle characteristics, and also high rate performance, as well as a lithium ion rechargeable battery using the same. The anode active material contains particles having a crystal phase represented by RAx, wherein R is at least one element selected from the group consisting of rare earth elements including Sc and Y but excluding La, A is Si and/or Ge, and x satisfies 1.0≤x≤2.0, and a crystal phase consisting of A. The material is thus useful as an anode material for lithium ion rechargeable batteries.