NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

WIPO Patent Application WO/2019/207924

A1

A nonaqueous electrolyte secondary battery (10) according to one embodiment of the present disclosure is provided with: an electrode body (14) which is obtained by winding a positive electrode (30) and a negative electrode (40), with a separator (50) being interposed therebetween; a nonaqueous electrolyte; and a battery case (15) which is formed of a metal and contains the electrode body (14) and the nonaqueous electrolyte. The negative electrode (40) comprises a negative electrode collector (41) and a negative electrode active material layer (42) that contains graphite particles as a negative electrode active material; the outer circumferential surface of the electrode body (14) is provided with an exposure part (43) from which the negative electrode collector (41) is exposed so as to be in contact with the inner circumferential surface of the battery case (15); and the graphite particles have a compressive strength of 15 MPa or more.

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JP5764746	Retractable battery and its manufacturing method
JP2002270148	MANUFACTURING METHOD OF CYLINDER SEALING TYPE LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY

TAKEUCHI MASANOBU
TAKIJIRI MANABU
KATO YOSHIO
SHIRAGA MASAHIRO

PCT/JP2019/006097

October 31, 2019

February 19, 2019

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PANASONIC IP MAN CO LTD (JP)

H01M10/0587; H01M4/133; H01M4/587; H01M10/0567; H01M50/528

WO2012042830A1

2012-04-05

JP2008166047A	2008-07-17
JP2009004139A	2009-01-08
JP2013026042A	2013-02-04

YKI INTELLECTUAL PROPERTY ATTORNEYS (JP)

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