Title:
LITHIUM-ION SECONDARY BATTERY AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2019/116761
Kind Code:
A1
Abstract:
The present invention provides: a lithium-ion secondary battery in which a layered-type electrode assembly is housed in an outer package formed of a laminate film, and which exhibits excellent cycle properties; and a method for manufacturing same. This lithium-ion secondary battery is obtained by housing, in an outer package formed of a laminate film, an electrode assembly having plate-like positive and negative electrodes that are layered so as to have a separator therebetween. The lithium-ion secondary battery has, in a plan view, a polygonal shape including at least one set of width and length. When the thickness and the width of the lithium-ion secondary battery are respectively defined as A (mm) and B (mm), and when the three-point bending strength of the lithium-ion secondary battery is defined as C (N), C/(A×B) is 0.50-1.20 (N/mm2).
Inventors:
KAWAI TORU (JP)
Application Number:
PCT/JP2018/040448
Publication Date:
June 20, 2019
Filing Date:
October 31, 2018
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H01M10/0585; H01M2/16; H01M10/052; H01M10/0566
Domestic Patent References:
| WO2013031195A1 | 2013-03-07 | |||
| WO2017209052A1 | 2017-12-07 | |||
| WO2013001960A1 | 2013-01-03 |
Foreign References:
| JP2001093580A | 2001-04-06 | |||
| JP2017107851A | 2017-06-15 |
Attorney, Agent or Firm:
YAMAO, Norihito et al. (JP)
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