CURRENT COLLECTOR, ELECTRODE STRUCTURE AND NON-AQUEOUS ELECTROLYTE BATTERY OR ELECTRICAL STORAGE DEVICE
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United States of America Patent
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Issued Date -
Oct 15, 2015
app pub date -
Jul 11, 2013
filing date -
Jul 13, 2012
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Abstract
Provided is a current collector which has a PTC layer having room for thermal expansion at elevated temperature while securing sufficient conductivity at normal temperature. According to the invention, a current collector comprising a conductive base material, and a resin layer formed on at least one surface of the conductive base material is provided. The resin layer contains an organic resin and conductive particles. A deposition amount of the resin layer on the conductive base material is 0.5 to 20 g/m2. Rz (ten point average roughness) of the surface of the resin layer is 0.4 to 10 μm. Sm (average spacing of ruggedness) of the surface of the resin layer is 5 to 200 μm. An average of resistance of the resin layer measured by the two-terminal method is 0.5 to 50 Ω.
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