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. 09, 2011
Filed:
Jun. 30, 2006
Kazunori Takada, Ibaraki, JP;
Narumi Ohta, Ibaraki, JP;
Lianqi Zhang, Ibaraki, JP;
Takayoshi Sasaki, Ibaraki, JP;
Kazunori Takada, Ibaraki, JP;
Narumi Ohta, Ibaraki, JP;
Lianqi Zhang, Ibaraki, JP;
Takayoshi Sasaki, Ibaraki, JP;
National Institute For Materials Science, Tsukuba-shi, JP;
Abstract
An all-solid lithium secondary battery has excellent reliability including safety. However, in general, its energy density or output density is lower than that achieved by liquid electrolyte systems. The all-solid lithium battery includes a lithium ion-conducting solid electrolyte as an electrolyte. The lithium ion-conducting solid electrolyte is mainly composed of a sulfide, and the surface of a positive electrode active material is coated with a lithium ion-conducting oxide. The advantages of the present invention are particularly significant when the positive electrode active material exhibits a potential of 3 V or more during operation of the all-solid lithium battery, i.e., when redox reaction occurs at a potential of 3 V or more.