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:
Jun. 12, 2012
Filed:
Sep. 11, 2008
Ryoko Kanda, Itami, JP;
Nobuhiro Ota, Itami, JP;
Takashi Uemura, Itami, JP;
Kentaro Yoshida, Itami, JP;
Mitsuyasu Ogawa, Itami, JP;
Ryoko Kanda, Itami, JP;
Nobuhiro Ota, Itami, JP;
Takashi Uemura, Itami, JP;
Kentaro Yoshida, Itami, JP;
Mitsuyasu Ogawa, Itami, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Abstract
A lithium battery includes a substrate, a positive electrode layer, a negative electrode layer, and a sulfide solid electrolyte layer disposed between the positive electrode layer and the negative electrode layer, the positive electrode layer, the negative electrode layer, and the sulfide solid electrolyte layer being provided on the substrate. In this lithium battery, the positive electrode layer is formed by a vapor-phase deposition method, and a buffer layer that suppresses nonuniformity of distribution of lithium ions near the interface between the positive electrode layer and the sulfide solid electrolyte layer is provided between the positive electrode layer and the sulfide solid electrolyte layer. As the buffer layer, a lithium-ion conductive oxide, in particular, LiLaTiO(x=0.1 to 0.5), LiLaZrO(−5≦x≦3, preferably −2≦x≦2), or LiNbOis preferably used.