Hybrid electrodes for battery cells and methods of production thereof
OwnerZachary Favors, Fabio Albano +1inventors
InventorsZachary Favors, Fabio Albano, Bill Burger
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Abstract
Carbon based electrodes for use in battery cells. The carbon-based electrodes can be a pure binderless carbon electrode. The electrode may further include a carbon nanotube-based interlayer comprising about 1-30% oxidized carbon nanotubes, wherein the interlayer can be configured to act as a secondary pathway to a current collector of a battery cell. Some of the formed cathodes can be used in battery cells including a lithium based anode and a separator formed between the cathode and anode. An electrolyte solution can be utilized to expose the cathode to an activated sulfur material.
Claims4
A battery cell comprising:
- an anode, wherein the anode is comprised of lithium;
- a carbon-based cathode, wherein the cathode is comprised of a first carbon material, a second carbon material, and sulfur component, wherein pure binderless carbon is introduced to a sulfur active material to the carbon-based cathode by soaking the cathode in polysulfide electrolyte solution comprising dimethoxyethane (DME) and a polysulfide species selected from at least one of the following:
- Li2S4, Li2S5, Li2S6, Li2S7, Li2S8, Li2S9, wherein the interlayer is comprised of oxidized carbon nanotubes and pristine carbon nanotubes;
- an interlayer coated around an exterior surface of the cathode, wherein the interlayer is comprised of oxidized carbon nanotubes and pristine carbon nanotubes and is configured to act as a secondary pathway to a current collector;
- and
- a separator positioned between the anode and the cathode, wherein the separator is selected from at least one of the following:
- cotton, nylon, polyesters, glass, polyethylene, polypropylene, poly(tetrafluoroethylene), polyvinyl chloride, ceramics, rubber, asbestos, or wood.
Dependencies are inferred from the claim text.