CURRENT COLLECTOR, ELECTRODE STRUCTURE, AND ELECTRICAL STORAGE DEVICE
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United States of America Patent
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Issued Date -
Oct 29, 2015
app pub date -
Nov 15, 2013
filing date -
Nov 19, 2012
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Abstract
A current collector which can achieve both of the improvement in battery characteristics by reducing the initial (at ambient temperature) interface resistance and the improvement in safety by the PTC function, when the current collector is used for the electrode structure of electrical storage devices such as non-aqueous electrolyte batteries, electrical double layer capacitors, and lithium ion capacitors; electrode structures; electrical storage devices; and composition for current collectors; are provided. A current collector, including: a conductive substrate 103; and a resin layer 105 provided on at least one side of the conductive substrate 103; is provided. Here, the resin layer is formed by coating a paste including: polyolefin-based emulsion particles 125; and a conductive material 121; onto the conductive substrate 103. The coating weight of the paste is 0.1 to 20 g/m2; and the porosity of the resin layer 105 is 10% (v/v) or less.
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