NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

WIPO Patent Application WO/2021/157562

A1

The purpose of the present disclosure is to provide a non-aqueous electrolyte secondary battery that can, in a suitable manner, electrically connect an exposed surface of a negative electrode current collector of the outermost periphery of an electrode body and the inside surface of an exterior can. The non-aqueous electrolyte secondary battery according to one embodiment of the present disclosure comprises a wound-type electrode body. A negative electrode (12) has: a negative electrode current collector (40); a double-sided coated part in which a negative electrode mixture layer (42) including a negative electrode active material and a binder is formed on the surface of the negative electrode current collector (40), and a negative electrode mixture layer (42A) is formed on both surfaces of the negative electrode current collector (40); and a one-sided coated part in which a negative electrode mixture layer (42B) is formed on one outer-periphery-side surface of the negative electrode current collector (40). At least a portion of the one-sided coated part is positioned on the outermost periphery of the electrode body. The swelling degree of the binder in the one-sided coated part is higher than the swelling degree of the binder in the double-sided coated part.

URATA SHO
SAKITANI NOBUHIRO
MORIKAWA TAKAHARU

PCT/JP2021/003704

August 12, 2021

February 02, 2021

Click for automatic bibliography generation  

SANYO ELECTRIC CO (JP)

H01M4/13; H01M4/38; H01M4/62; H01M10/0587

WO2011001665A1

2011-01-06

JP2013254561A	2013-12-19
JP2012174582A	2012-09-10
JP2013171806A	2013-09-02
JP2013235795A	2013-11-21
JP2012043592A	2012-03-01
JPH0817472A	1996-01-19

TOKUDA Yoshiaki et al. (JP)

View/Download PDF      PDF Help

Previous Patent: RUN-FLAT TIRE

Next Patent: FLUORINE-CONTAINING ETHER COMPOUND, LUBRICANT FOR MAGNETIC RECORDING MEDIUM, AND MAGNETIC RECORDING ...