Large energy density batteries
AssigneeThe Texas A&M University System
InventorsChoongho Yu, Xiong Pu
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Abstract
Embodiments of the claimed invention are directed to a device, comprising: an anode that includes a lithiated silicon-based material and a sulfur-based cathode, wherein the anode and the cathode are designed to have mesoporous structures. In certain embodiments, the sulfur-based cathode is a mesoporous carbon structure comprising sulfur within the mesopores. A further embodiment of the invention is directed to a device comprising a semi-liquid lithium-sulfur battery comprising a lithium anode and a sulfur cathode. In certain embodiments, the sulfur cathode comprises a liquid catholyte, which is housed within a reservoir that is a carbon nanotube sponge. An additional embodiment of the invention is directed to a method for producing a lithiated silicon anode and a sulfur-based cathode.
Claims16
A device, comprising:
- an anode that includes a lithiated silicon-based material;
- a current collector-free electrode comprising a sulfur-based cathode;
- and
- a reservoir that houses the sulfur-based cathode, wherein the reservoir comprises a flexible, porous carbon structure, wherein the porous carbon structure comprises liquid sulfur catholyte within its pores, and wherein the porous carbon structure comprises carbon nanotubes that are physically bonded together and intertwined.
A semi-liquid lithium-sulfur battery comprising:
- a lithium anode;
- a current collector-free electrode comprising a sulfur cathode;
- and
- a liquid catholyte containing a LiNO3 additive, wherein the liquid catholyte is housed within pores of a flexible, porous carbon nanotube sponge reservoir, wherein the reservoir comprises carbon nanotubes that are physically bonded together and intertwined.
A semi-liquid lithium-sulfur battery comprising:
- a carbon nanotube sponge anode comprising lithium;
- a current collector-free electrode comprising a sulfur cathode;
- and
- a liquid catholyte containing a LiNO3 additive, wherein the liquid catholyte is housed within pores of a flexible, porous carbon nanotube sponge reservoir, wherein the reservoir comprises carbon nanotubes that are physically bonded together and intertwined.
A method to produce a lithiated silicon-sulfur battery, the method comprising:
- synthesizing a current collector-free sulfur cathode;
- synthesizing a silicon anode, wherein the silicon anode is lithiated;
- and
- placing the cathode in a reservoir, wherein the reservoir is a flexible, porous carbon nanotube sponge and the reservoir contains a liquid catholyte and wherein the reservoir comprises carbon nanotubes that are physically bonded together and intertwined.
Dependencies are inferred from the claim text.