STRUCTURE OF AN ELECTROCHEMICAL SEPARATION MEMBRANE AND MANUFACTURING METHOD FOR FABRICATING THE SAME
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United States of America Patent
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Issued Date -
Dec 12, 2013
app pub date -
Nov 7, 2012
filing date -
Jun 11, 2012
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Abandoned
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Abstract
A structure of an electrochemical separation membrane and a manufacturing method for fabricating the same are disclosed. The structure of an electrochemical separation membrane includes a base-phased polymer part in form of a continuous phase structure, a fabric-supported part distributed in the base-phased polymer part in striped shape to provide mechanic strength thereto, and inorganic particles distributed uniformly in the base-phased polymer part with 0.1 wt %˜50 wt %, wherein the fabric-supported part is a porous structure with a plurality of micro holes such that the base-phased polymer part filled into the micro holes to obtain better adhesive strength, inorganic particles distributed uniformly in the base-phased polymer part to reduce the shrinking of separation membrane and hence improving the thermal stability under high temperature. A lithium ion battery applying the electrochemical separation membrane of the present invention can reduce resistance, increase charge/discharge capacitance and prolong lifespan.
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