Method for coating a metal layer such as lithium metal on a web such as a current collector foil
AssigneeGM Global Technology Operations LLC
InventorsYaoyu Ren, Ming Wang, Shaomao Xu, Ryan Curtis Sekol
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Abstract
A method for coating a web with a metal layer includes heating a metal in a container to create molten metal. The metal is selected from a group consisting of lithium (Li), sodium (Na), potassium (K), indium (In), tin (Sn), cadmium (Cd), zinc (Zn), and lead (Pb). The method includes coating at least one surface of a web with a metal layer using the molten metal. The web is made of a material selected from a group consisting of copper (Cu), nickel (Ni), titanium (Ti), stainless steel, polymer, and carbon.
Claims12
A method for coating a web with a metal layer, comprising:
- heating a metal in a container to create molten metal,
- wherein the metal is selected from a group consisting of lithium (Li), sodium (Na), potassium (K), indium (In), tin (Sn), cadmium (Cd), zinc (Zn), and lead (Pb);
- and
- coating at least one surface of a web with a metal layer using the molten metal,
- wherein the web is made of a material selected from a group consisting of copper (Cu), nickel (Ni), titanium (Ti), stainless steel, polymer, and carbon, and
- further coating the at least one surface of the web with the molten metal by tilting the container.
A method for coating a web with a Li metal layer, comprising:
- heating lithium (Li) metal in N containers to create molten Li metal in the N containers, wherein N is an integer greater than zero,
- wherein a temperature of the N containers is in a range 180° C. to 300° C.;
- and
- using a roll-to-roll process to coat at least one surface of a web with a Li metal layer using the molten Li metal in the N containers,
- wherein the web comprises foil made of a material selected from a group consisting of copper (Cu), nickel (Ni), titanium (Ti), and stainless steel,
- wherein a thickness of the web is in a range from 1 μm to 100 μm, and
- wherein a thickness of the Li metal layer after coating the web with molten Li metal in the N containers is in a range from 1 μm to 50 μm, and
- further coating both sides of the web with the molten Li metal by tilting at least two of the N containers.
Dependencies are inferred from the claim text.