Title:
SECONDARY BATTERY AND USAGE METHOD FOR SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2018/155058
Kind Code:
A1
Abstract:
This secondary battery (10) comprises at least: a positive electrode (11); a negative electrode (12); a separation layer (5) that spatially separates the positive electrode (11) and the negative electrode (12); and an ion conductor held between the positive electrode (11) and the negative electrode (12) and having a function of conducting ions between the positive electrode (11) and the negative electrode (12). During initial use of the secondary battery (10): the secondary battery has a characteristic whereby the rate of reduction in the positive electrode (11) potential immediately prior to completion of full discharge is greater than the rate of increase in the negative electrode (12) potential immediately prior to completion of full discharge and a characteristic whereby the rate of increase in the positive electrode (11) potential immediately prior to completion of full charge is greater than the rate of reduction in the negative electrode (12) potential immediately prior to completion of full charge; and the secondary battery (10) use is continued until the rate of reduction in the positive electrode (11) potential immediately prior to completion of full discharge is less than the rate of increase in the negative electrode (12) potential immediately prior to completion of full discharge.
Inventors:
KATOU YUUKOU (JP)
Application Number:
PCT/JP2018/002257
Publication Date:
August 30, 2018
Filing Date:
January 25, 2018
Export Citation:
Assignee:
NEC ENERGY DEVICES LTD (JP)
International Classes:
H01M10/44; H01M10/052; H01M10/48; H02J7/00; H02J7/10
Domestic Patent References:
| WO2012124244A1 | 2012-09-20 |
Foreign References:
| JP2015230817A | 2015-12-21 | |||
| JP2016223923A | 2016-12-28 |
Attorney, Agent or Firm:
HAYAMI Shinji (JP)
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