Coin Cell Case
AssigneeWildcat Discovery Technologies, Inc.
InventorsDeidre Strand, Justin Dutton, Stacy Redmond, Ye Zhu
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Abstract
Coin cell case components may be made by a method comprising stamping a bimetallic sheet comprised of stainless steel fused to aluminum to form a coin cell case component, the bimetallic sheet being formed by a method comprising pressing a stainless steel sheet and an aluminum sheet in the absence of annealing after pressing. Coin cells comprised of a positive or negative case are suitable for high voltage batteries (≥4.3V) such as those having a cathode containing a disordered rock salt and/or a liquid electrolyte having a lithium salt and a solvent.
Claims19
A method to form a coin cell case component comprising stamping a bimetallic sheet comprised of stainless steel fused to aluminum to form a coin cell case component, the bimetallic sheet being formed by a method comprising pressing a stainless steel sheet and an aluminum sheet in the absence of annealing after pressing, wherein the stainless steel of the bimetallic sheet has a thickness of 150 to 300 micrometers and the aluminum of the bimetallic sheet has a thickness of 5 to 25 micrometers.
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A method to form a coin cell case component comprising stamping a bimetallic sheet comprised of stainless steel fused to aluminum to form a coin cell case component, the bimetallic sheet being formed by a method comprising pressing a stainless steel sheet and an aluminum sheet in the absence of annealing after pressing, wherein the thickness of the stainless steel of the bimetallic sheet has a thickness that is 0.5 to 0.9 times the stainless steel sheet's thickness.
A method to form a coin cell case component comprising stamping a bimetallic sheet comprised of stainless steel fused to aluminum to form a coin cell case component, the bimetallic sheet being formed by a method comprising pressing a stainless steel sheet and an aluminum sheet in the absence of annealing after pressing, wherein the thickness of the stainless steel sheet is 15% to 30% greater than the thickness of the stainless steel of the bimetallic sheet.
Dependencies are inferred from the claim text.