Electrochemical device using multicomponent composite membrane film
First Claim
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1. An electrochemical element comprising electrochemical cells which are multiply-stacked with a separator layer interposed between each stacked cell, wherein said separator layer is a multi-component composite membrane comprising:
- a) a porous polymeric support layer; and
b) a porous gellable polymer layer which is formed on one side or both sides of the porous polymeric support layer,wherein the porous polymeric support layer and the porous gellable polymer layer have the same or different pore size and are united with each other.
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Abstract
The present invention provides a electrochemical element, wherein a multi-component composite film comprising a) polymer support layer film and b) a porous gellable polymer layer which is formed on either or both sides of the support layer film of a), wherein the support layer film of a) and the gellable polymer layer of b) are unified with each other without an interface between them.
109 Citations
12 Claims
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1. An electrochemical element comprising electrochemical cells which are multiply-stacked with a separator layer interposed between each stacked cell, wherein said separator layer is a multi-component composite membrane comprising:
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a) a porous polymeric support layer; and b) a porous gellable polymer layer which is formed on one side or both sides of the porous polymeric support layer, wherein the porous polymeric support layer and the porous gellable polymer layer have the same or different pore size and are united with each other.
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2. An electrochemical element comprising electrochemical cells which are multiply-stacked, wherein
a) said electrochemical cells are formed by stacking: -
i) fuel cells having a positive electrode, a separator layer, and an negative electrode sequentially as a basic unit;
orii) {circle around (1)} bicells having a positive electrode, a separator layer, a negative electrode, another separator layer, and another positive electrode sequentially as a basic unit or {circle around (2)} bicells having a negative electrode, a separator layer, a positive electrode, another separator layer, and another negative electrode sequentially as a basic unit; and iii) a separator layer interposed between each stacked cell; b) each of said separator layers comprise a multi-component composite membrane comprising; i) a porous polymeric support layer and ii) a porous gellable polymer layer which is formed on one side or both sides of the porous polymeric support layer, wherein said porous polymeric support layer and the porous gellable polymer layer have the same or different pore size and are united with each other. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification