METHOD FOR MANUFACTURING LAMINATED FILM, AND PIERCING BLADE

WIPO Patent Application WO/2015/019749

A1

In the present invention, pierced holes are formed in two laminated films (5), the edges of which are sealed along a sealing line, by moving a piercing blade (20) in an orthogonal direction (Y1) orthogonal to the primary plane, and then a gas release-use opening of a prescribed length is formed on the inner side of the sealing line by moving the piercing blade (20) in an advancement direction (Y2). This piercing blade (20) is a double-edged blade in which blades are formed on the two inclined sections (22, 23) of a triangular tip, and the first angle (θ1) formed by the first inclined section (22) on the advancement direction side with respect to the surface of the laminated film is smaller than the second angle (θ2) formed by the second inclined section (23) on the side opposite to the advancement direction with respect to the surface of the laminated film.

JP6618352	Laminated battery manufacturing equipment
JP6848833	Battery manufacturing method
JP2002203589	CYLINDRICAL SECONDARY BATTERY

AKUTSU NOBUAKI (JP)
YAMAKAWA SHOUICHI (JP)

PCT/JP2014/067431

February 12, 2015

June 30, 2014

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NISSAN MOTOR (JP)
AUTOMOTIVE ENERGY SUPPLY CORP (JP)

H01M10/04; B26D1/04; B26D3/00; H01M10/0585; H01M50/119; H01M50/121; H01M50/124

WO2013187161A1

2013-12-19

JP2004342520A	2004-12-02
JP2013063478A	2013-04-11
JPS6384893A	1988-04-15
JPS62218096A	1987-09-25
JPS6034296A	1985-02-21

KOBAYASHI, Hiromichi et al. (JP)
Hiromichi Kobayashi (JP)

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