Large energy density batteries and methods of manufacture
AssigneeThe Texas A&M University System
InventorsChoongho Yu, Gang Yang
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Abstract
Embodiments of the claimed invention are directed to a device, comprising: an anode that includes a lithiated silicon-based or lithiated carbon-based material or pure lithium metal or metal oxides and a sandwich-type sulfur-based cathode, wherein the anode and the cathode are designed to have porous structures. An additional embodiment of the invention is directed to a scalable method of manufacturing sandwich-type Li—S batteries at a significantly reduced cost compared to traditional methods. An additional embodiment is directed to the use of exfolidated CNT sponges for enlarging the percentage of sulfur in the cathode to have large energy density.
Claims5
A device comprising:
- a sulfur-based cathode comprising layers of sulfur sandwiched between layers of carbon nanotube film;
- an anode comprising lithium that is positioned between layers of the sulfur-based cathode, wherein the anode and the sulfur-based cathode have a mesoporous structure;
- and
- a reservoir that houses the sulfur-based cathode, wherein the reservoir comprises a porous carbon structure, wherein the porous carbon structure comprises liquid sulfur catholyte within its pores.
Dependencies are inferred from the claim text.