Title:
蓄電装置
Document Type and Number:
Japanese Patent JP6674008
Kind Code:
B2
Abstract:
A decrease in the capacity of a power storage device is inhibited by adjusting or reducing imbalance in the amount of inserted and extracted carrier ions between positive and negative electrodes, which is caused by decomposition of an electrolyte solution of the negative electrode. Further, the capacity of the power storage device can be restored. Furthermore, impurities in the electrolyte solution can be decomposed with the use of the third electrode. A power storage device including positive and negative electrodes, an electrolyte, and a third electrode is provided. The third electrode has an adequate electrostatic capacitance. The third electrode can include a material with a large surface area. In addition, a method for charging the power storage device including the steps of performing charging by applying a current between the positive and negative electrodes, and performing additional applying a current between the third electrode and the negative electrode is provided.
Inventors:
Momo Junpei
Hiroyuki Miyake
Kei Takahashi
Hiroyuki Miyake
Kei Takahashi
Application Number:
JP2018216440A
Publication Date:
April 01, 2020
Filing Date:
November 19, 2018
Export Citation:
Assignee:
Semiconductor Energy Laboratory Co., Ltd.
International Classes:
H01M10/44; H01M4/13; H01M10/052; H01M10/0566
Domestic Patent References:
| JP8510088A | ||||
| JP2006080335A | ||||
| JP2009141181A |
Foreign References:
| WO2011093126A1 |