Title:
An electric device
Document Type and Number:
Japanese Patent JP6252602
Kind Code:
B2
Abstract:
To provide a means capable of further improving cycle durability in an electrical device such as a lithium ion secondary battery containing a positive electrode using a solid solution positive electrode active material. An electrical device has a power generating element containing a positive electrode in which a positive electrode active material layer containing a positive electrode active material is formed on a surface of a positive electrode current collector, a negative electrode in which a negative electrode active material layer containing a negative electrode active material is formed on a surface of a negative electrode current collector, and a separator impregnated with an electrolytic solution. The negative electrode active material layer contains a negative electrode active material represented by formula (1). The positive electrode active material layer contains a positive electrode active material (solid solution positive electrode active material) represented by formula (2). As the solid solution positive electrode active material contained in the positive electrode active material layer, a material having a composition represented by formula (3) as a basic structure is used. The electrolytic solution contains a predetermined additive.
Inventors:
Ogihara Wataru
Shinji Yamamoto
Shinji Yamamoto
Application Number:
JP2015558669A
Publication Date:
December 27, 2017
Filing Date:
January 24, 2014
Export Citation:
Assignee:
Nissan Motor Co., Ltd
International Classes:
H01M10/0567; H01G11/06; H01G11/30; H01G11/32; H01M4/36; H01M4/38; H01M4/48; H01M4/505; H01M4/525; H01M4/587; H01M10/0525
Domestic Patent References:
| JP2013229163A | ||||
| JP2009158099A |
Foreign References:
| WO2013115390A1 |
Attorney, Agent or Firm:
Hatta International Patent Corporation