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US 11,888,149 B2Granted
Solid state battery system usable at high temperatures and methods of use and manufacture thereof
AssigneeUniversity of Maryland
InventorsLiangbing Hu, Chengwei Wang, Eric D. Wachsman, Venkataraman Thangadurai
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Abstract
A battery cells that include sulfide cathodes are described with examples being suitable for operation at elevated temperatures. Also described are methods of making and using these battery cells.
Claims21
A battery cell comprising:
- a solid-state electrolyte (SSE) comprising,
- a solid-state dense region having a porosity of less than 5%;
- and
- a solid-state first porous region having pores and a porosity of 40% to 90%;
- a cathode contacting the SSE, wherein the cathode comprises a cathode active material selected from the group consisting of a lithiated and/or non-lithiated form of TiS2, MoS2, WS2, vanadium sulfides, ZrS2, NbS2, TaS2, CuS, and NiS;
- and
- an anode material disposed in the pores of at least a portion of the solid-state first porous region.
4 more elements
A battery cell comprising:
- a solid-state electrolyte (SSE) comprising,
- a solid-state dense region having a porosity of less than 5%;
- and
- a solid-state first porous region having pores and a porosity of 40% to 90%;
- a cathode contacting the SSE, wherein the cathode comprises a cathode active material selected from the group consisting of a lithiated and/or non-lithiated form of TiS2, MoS2, WS2, vanadium sulfides, ZrS2, NbS2, TaS2, CuS, and NiS, and wherein electrically conductive carbon is located on a surface of the cathode active material;
- and
- an anode material disposed in the pores of at least a portion of the solid-state first porous region.
4 more elements
A battery cell comprising:
- a solid-state electrolyte (SSE) comprising,
- a solid-state dense region having a porosity of less than 5%;
- and
- a solid-state first porous region having pores and a porosity of 40% to 90%;
- a cathode contacting the SSE, wherein the cathode comprises a cathode active material selected from the group consisting of a lithiated and/or non-lithiated form of TiS2, MoS2, WS2, vanadium sulfides, ZrS2, NbS2, TaS2, CuS, and NiS, and wherein carbon nanotubes are located on a surface of the cathode active material;
- and
- an anode material disposed in the pores of at least a portion of the solid-state first porous region.
4 more elements
A battery cell comprising:
- a solid-state electrolyte (SSE) comprising,
- a solid-state dense region having a porosity of less than 5%;
- and
- a solid-state first porous region having pores and a porosity of 40% to 90%;
- a cathode contacting the SSE, wherein the cathode comprises a cathode active material selected from the group consisting of a lithiated and/or non-lithiated form of TiS2, MoS2, WS2, vanadium sulfides, ZrS2, NbS2, TaS2, CuS, and NiS, wherein sulfur particles are present within the cathode active material;
- and
- an anode material disposed in the pores of at least a portion of the solid-state first porous region.
4 more elements
Dependencies are inferred from the claim text.