Title:
The electrode material for accumulating electricity devices, the electrode for accumulating electricity devices, an accumulating electricity device, electronic equipment
Document Type and Number:
Japanese Patent JP6282828
Kind Code:
B2
Abstract:
Irreversible capacity which causes a decrease in the initial capacity of a power storage device is reduced and the electrochemical decomposition of an electrolytic solution is suppressed. The decomposition reaction of an electrolytic solution as a side reaction of a power storage device is reduced or suppressed to improve the cycle performance of the power storage device. An electrode material for a power storage device includes active material particles and coating films covering part of surfaces of the active material particles. Carrier ions used for the power storage device can pass through the coating film. The product of the electric resistivity and the thickness of the coating film at 25° C. is greater than or equal to 20 Ωm·m.
Inventors:
Minoru Takahashi
Ryota Tajima
Kuriki Kazuki
Ryota Tajima
Kuriki Kazuki
Application Number:
JP2013194901A
Publication Date:
February 21, 2018
Filing Date:
September 20, 2013
Export Citation:
Assignee:
Semiconductor Energy Laboratory Co., Ltd.
International Classes:
H01M4/36; H01G11/24; H01G11/26; H01M4/13; H01M4/62
Domestic Patent References:
| JP2008004534A | ||||
| JP2005276454A | ||||
| JP2005078800A | ||||
| JP2002151077A | ||||
| JP2002373643A | ||||
| JP2000243390A | ||||
| JP2012015099A | ||||
| JP2009099328A |
Foreign References:
| US6465127 |