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US 8,642,201 B2Granted
Liquid-metal negative electrode for lithium-ion batteries
AssigneeGM Global Technology Operations LLC
InventorsYang T. Cheng, Stephen J. Harris, Adam T Timmons
Life of this patent
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Abstract
One embodiment includes a liquid-metal alloy negative electrode for a lithium-ion battery. The electrode may also include a porous matrix that comprises a polymer matrix material, a hydrogel material, or a ceramic material.
Claims19
A negative electrode comprising:
- a porous matrix, wherein said porous matrix comprises a polymer matrix material, a hydro-gel material, or a ceramic material;
- and
- a liquid metal alloy material that reacts with lithium coupled within said porous matrix.
An electrode assembly comprising:
- at least one positive electrode;
- and
- at least one negative electrode, said negative electrode comprising a liquid metal alloy material that reacts with lithium having a melting point below an operating temperature for an lithium-ion battery, the liquid metal alloy material coupled within a porous matrix, wherein said porous matrix comprises a polymer matrix material, a hydro-gel material, or a ceramic material.
A product comprising:
- a positive electrode;
- a negative electrode comprising a alloy material that reacts with lithium having a melting point below an operating temperature for the product and a porous matrix, wherein said porous matrix comprises a polymer matrix material, a hydro-gel material, or a ceramic material;
- and
- a separator or solid electrolyte layer coupled between said negative electrode and said positive electrode.
1 more element
Dependencies are inferred from the claim text.