Title:
SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2020/059805
Kind Code:
A1
Abstract:
[Problem] To provide a secondary battery with which it is possible to suppress a reduction in heating safety after a charge/discharge cycle. [Solution] A secondary battery comprising at least: a plurality of positive electrodes, each of which has a positive electrode active material layer that contains a fluorine-based binder having a melting point of 166°C or less; a plurality of negative electrodes, each of which has a negative electrode active material layer; and an electrolyte, wherein the positive electrode active material layers and the negative electrode active material layers are arranged facing each other such that the edges of the positive electrode active material layers are positioned inward of the edges of the negative electrode active material layers.
Inventors:
HORIUCHI HIROSHI (JP)
IWANE NOBUYUKI (JP)
IHARA MASAYUKI (JP)
IWANE NOBUYUKI (JP)
IHARA MASAYUKI (JP)
Application Number:
PCT/JP2019/036787
Publication Date:
March 26, 2020
Filing Date:
September 19, 2019
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H01M10/0585; H01M4/13; H01M4/62; H01M10/052
Domestic Patent References:
| WO2015156344A1 | 2015-10-15 |
Foreign References:
| JP2016134237A | 2016-07-25 | |||
| JP2009129917A | 2009-06-11 | |||
| JP2015230852A | 2015-12-21 |
Attorney, Agent or Firm:
SUGIURA, Masatomo et al. (JP)
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