Protective coating for separators for electrochemical cells
AssigneeMoltech Corporation
InventorsQicong Ying, Steven A. Carlson, Terje A. Skotheim
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Abstract
This invention pertains to separators for electrochemical cells which comprise (i) a microporous pseudo-boehmite layer and (ii) a protective coating layer comprising a polymer; electrolyte elements comprising such separators; electrical current producing cells comprising such separators; and methods of making such separators, electrolyte elements and cells.
Claims93
A separator interposed between an anode and a cathode of an electric current producing cell, wherein said separator comprises:
- (i) at least one microporous pseudo-boehmite layer, in contact with
- (ii) at least one protective coating layer comprising a polymer.
A separator interposed between an anode and a cathode of an electric current producing cell, wherein said separator comprises:
- (i) at least one microporous pseudo-boehmite layer, in contact with
- (ii) at least one protective coating layer comprising a polymer and a silica pigment.
An electrolyte element for an electric current producing cell, wherein said electrolyte element comprises:
- (a) a separator;
- and,
- (b) an organic electrolyte;
- wherein said separator comprises:
- (i) at least one microporous pseudo-boehmite layer, in contact with
- (ii) at least one protective coating layer comprising a polymer;
- and, said organic electrolyte is contained within pores of said separator.
An electric current producing cell comprising a cathode, an anode and an electrolyte element interposed between said cathode and said anode, wherein said electrolyte element comprises:
- (a) a separator;
- and,
- (b) an organic electrolyte;
- wherein, said separator comprises:
- (i) a microporous pseudo-boehmite layer, in contact with
- (ii) a protective coating layer comprising a polymer;
- and, wherein said organic electrolyte is contained within pores of said separator.
Dependencies are inferred from the claim text.