Title:
An electric device
Document Type and Number:
Japanese Patent JP6252603
Kind Code:
B2
Abstract:
[Problem] To provide a means whereby an electrical device such as a lithium-ion secondary battery that has a positive electrode using a solid-solution positive-electrode active material can be provided with satisfactory performance in terms of rate characteristics while sufficiently making use of the high capacity characteristics that characterize solid-solution positive-electrode active materials. [Solution] An electrical device that has an electricity-generating element containing the following: positive electrodes each obtained by forming, on the surface of a positive-electrode collector, a positive-electrode active-material layer containing a positive-electrode active material; negative electrodes each obtained by forming, on the surface of a negative-electrode collector, 3 to 11 mg/cm2 of a negative-electrode active-material layer containing a negative-electrode active material; and separators. The negative-electrode active-material layer contains the negative-electrode active material represented by formula (1), the positive-electrode active-material layer contains the positive-electrode active material (solid-solution positive-electrode active material) represented by formula (2), and a solid-solution positive-electrode active material having the composition represented by formula (3) is used as the solid-solution positive-electrode active material in the positive-electrode active-material layer.
Inventors:
Shinji Yamamoto
Ogihara Wataru
Ogihara Wataru
Application Number:
JP2015558670A
Publication Date:
December 27, 2017
Filing Date:
January 24, 2014
Export Citation:
Assignee:
Nissan Motor Co., Ltd
International Classes:
H01M4/133; H01M4/13; H01M4/131; H01M4/134; 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