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:
Sep. 20, 2011
Filed:
Dec. 13, 2007
Nobuhiro Ota, Itami, JP;
Nobuhiro Ota, Itami, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Abstract
A battery structure includes a positive electrode layer, a solid electrolyte layer, and a negative electrode layer disposed in that order, wherein the solid electrolyte layer has a chemical composition, excluding incidental impurities, represented by the formula aLi·bX·cS·dY, where X is at least one element of phosphorus (P) and boron (B), Y is at least one element of oxygen (O) and nitrogen (N), the sum of a, b, c, and d is 1, a is 0.20 to 0.52, b is 0.10 to 0.20, c is 0.30 to 0.55, and d is 0 to 0.30. The solid electrolyte layer includes a portion A in contact with the negative electrode layer and a portion B in contact with the positive electrode layer, and d in the portion A is larger than d in the portion B. A lithium secondary battery includes the battery structure.