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US 2020/0266418 A1Published application
Gap section multilayer electrode profile
AssigneeEnPower, Inc.
InventorAdrian YAO
Life of this patent
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Abstract
Systems and methods of the present disclosure include applying a mask to a substrate before coating the substrate with a multilayer composite to form an electrode. The mask may be removed to produce desired gaps in the coating for further manufacturing of wound battery cell designs and the like. In some examples, the mask comprises a single-sided thermal-release tape.
Claims20
A method of manufacturing an electrochemical cell electrode, the method comprising:
- applying a mask directly to a current collector substrate in a selected pattern, wherein the mask includes an adhesive tape;
- adding a multilayer composite coating to the current collector substrate by
- forming a first layer by coating a first active material composite onto the current collector substrate and the mask, wherein the first active material composite includes a plurality of first active material particles, and
- forming a second layer by coating a second active material composite onto the first layer, wherein the second active material composite includes a plurality of second active material particles;
- heating the composite coating such that the first layer, the second layer, and the mask are dried;
- removing the mask from the current collector substrate, such that corresponding portions of the first layer and the second layer are removed from the current collector substrate and gaps are formed in the composite coating, each of the gaps comprising a bare area of the current collector substrate.
3 more elements
A method of manufacturing an electrochemical cell electrode, the method comprising:
- adhering a mask to a current collector substrate in a selected pattern;
- adding a multilayer composite coating to the current collector substrate by
- forming a first layer by coating a first active material composite onto the current collector substrate and the mask, and
- forming a second layer by coating a second active material composite onto the first layer;
- heating the composite coating in an oven, such that the first layer, the second layer, and the mask are dried;
- removing the mask from the current collector substrate, such that corresponding portions of the first layer and the second layer are removed from the current collector substrate and gaps are formed in the composite coating, each of the gaps comprising a bare area of the current collector substrate.
3 more elements
Dependencies are inferred from the claim text.