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. 10, 2017
Filed:
Dec. 04, 2014
Mitsui Mining & Smelting Co., Ltd., Tokyo, JP;
Kyohei Yamaguchi, Takehara, JP;
Natsumi Ito, Takehara, JP;
Tsukasa Takahashi, Takehara, JP;
Tetsuya Mitsumoto, Takehara, JP;
Shinya Kagei, Takehara, JP;
Yoshimi Hata, Takehara, JP;
Mitsui Mining & Smelting Co., Ltd., Tokyo, JP;
Abstract
There is provided a Co-based 5-V spinel-type lithium manganese-containing complex oxide not only having an operating potential of 4.5 V or higher but also being capable of extending its capacity region of a 5.5 to 5.5 V region and being capable of enhancing its energy density as well. There is proposed a spinel-type lithium cobalt manganese-containing complex oxide having a crystal structure classified as a space group Fd-3m and being represented by the general formula [Li(CoMn)O(wherein 0.90≦x≦1.15 and 0.75≦y≦1.25), wherein the oxide has a crystallite size measured by a Rietveld method using the fundamental method of 100 nm to 200 nm, an interatomic distance of Li—O of 1.80 Å to 2.00 Å, and a strain of 0.20 to 0.50.