公开(公告)号：US09640606B2

公开(公告)日：2017-05-02

申请号：US14663266

申请日：2015-03-19

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Akihiko Sagara ,  Norihito Fujinoki ,  Yuki Nomura ,  Haruhiko Habuta

IPC: H01L21/02 ,  H01L49/02 ,  H01L21/288 ,  H01M14/00 ,  H01G11/56 ,  H01G11/84

CPC classification number: H01L28/60 ,  H01G11/56 ,  H01G11/84 ,  H01L21/02565 ,  H01L21/02628 ,  H01L21/02664 ,  H01L21/288 ,  H01M14/00 ,  Y02E60/13

Abstract: An electricity storage device includes a first electrode, a second electrode, an electricity storage layer, and a p-type semiconductor layer. The electricity storage layer is placed between the first electrode and the second electrode. The electricity storage layer contains a mixture of an insulating material and n-type semiconductor particles. The p-type semiconductor layer is placed between the electricity storage layer and the second electrode. The n-type semiconductor particles contain at least one of a titanium-niobium composite oxide and a titanium-tantalum composite oxide.