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. 06, 2019
Filed:
Feb. 17, 2016
National University Corporation Nagaoka University of Technology, Niigata, JP;
Nippon Electric Glass Co., Ltd., Shiga, JP;
Tsuyoshi Honma, Niigata, JP;
Takayuki Komatsu, Niigata, JP;
Satoshi Nakata, Niigata, JP;
Hideo Yamauchi, Shiga, JP;
Fumio Sato, Shiga, JP;
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY, Niigata, JP;
NIPPON ELECTRIC GLASS CO., LTD., Shiga, JP;
Abstract
A positive electrode active material for alkali-ion secondary batteries is provided which contains 20-55% of NaO+LiO, 10-60% of CrO+FeO+MnO+CoO+NiO, and 20-55% of PO+SiO+BOin terms of oxide-equivalent mol % and includes 50 mass % or more of an amorphous phase. According to the present invention, it is possible to provide a positive electrode active material for alkali-ion secondary batteries that enables high energy density and is excellent in the charge and discharge characteristics.