LIGHT-WEIGHT CURRENT COLLECTOR FOR SECONDARY BATTERY

Japanese Patent JP2003031224

A

To provide a current collector effective in making a secondary battery light-weight and thin.

This current collector is formed in such a way that the surface of a resin film is treated so as to form a conducive treating layer having a resistance of 1.3 Ω/cm or less, and a plating layer having a thickness of at least 0.3 μm or more per one surface is formed by electrolytic plating, and the resistance value of the electrolytic plating layer is 40 mΩ/cm or less, and the following formula is satisfied. Y1+Y2+Y3≤0.8×(X1+X2+X3)×(Y3/X3). In the above formula, X1: resin film thickness (μm) X2: conductive treated layer thickness (μm) X3: plating layer thickness (μm) Y1: resin film weight (mg/cm2) Y2: conductive treating layer weight (mg/cm2) Y3: plating layer weight (mg/cm2).

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OKAMURA TAKAAKI
DOI HIROSHI
HIRAKAWA SHINSUKE
TAKAGI KENICHI

JP2002105757A

January 31, 2003

April 08, 2002

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TOYO KOHAN CO LTD

B05D5/12; C23C14/20; C23C28/00; C25D5/56; H01M4/64; H01M4/66; H01M4/70; (IPC1-7): H01M4/64; B05D5/12; C23C14/20; C23C28/00; C25D5/56; H01M4/66; H01M4/70

JPH10302753A	1998-11-13
JPH09120818A	1997-05-06
JPH09213338A	1997-08-15
JPH11250917A	1999-09-17
JPH07272726A	1995-10-20
JPH05205746A	1993-08-13
JPH1167221A	1999-03-09

Akio Ota

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