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US 10,950,866 B2Granted
Battery with active materials stored on or in carbon nanosheets
AssigneeSparkle Power Inc.
InventorsDavid Mitlin, Jia Ding
Life of this patent
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Abstract
An energy storage device including an anode, a cathode, at least one of the anode and the cathode including a carbon nanosheet having an active material, such as selenium, in and/or on the carbon nanosheet, and an electrolyte. A carbon material including a carbon nanosheet derived from a biological precursor, such as nanocrystalline cellulose, including a plurality of micropores and an active material impregnated into at least a portion of the micropores of the carbon nanosheet.
Claims27
A carbon material, comprising:
- a carbon nanosheet derived from a biological precursor including a plurality of pores, wherein more than 50% of the pores are micropores, each micropore having a size of less than 2 nm;
- and
- an active material impregnated into at least a portion of the micropores of said carbon nanosheet, wherein the active material is:
- (a) selenium;
- (b) silicon (Si), tin (Sn), antimony (Sb), germanium (Ge), and/or compounds or alloys thereof;
- (c) titanium oxide (TiO2);
- or
- (d) combinations thereof,
- wherein the carbon nanosheet is fully amorphous.
6 more elements
An energy storage device, comprising:
- an anode;
- a cathode, at least one of said anode and said cathode including a fully amorphous carbon nanosheet having a plurality of pores, wherein more than 50% of the pores are micropores, each micropore having a size of less than 2 nm;
- an active material impregnated into at least a portion of the micropores of the carbon nanosheet, wherein the active material is:
- (a) selenium;
- (b) silicon (Si), tin (Sn), antimony (Sb), germanium (Ge), and/or compounds or alloys thereof;
- (c) titanium oxide (TiO2);
- or
- (d) combinations thereof;
- and
- an electrolyte.
7 more elements
A carbon material, comprising:
- a carbon nanosheet derived from a biological precursor including a plurality of pores, wherein more than 50% of the pores are micropores, each micropore having a size of less than 2 nm;
- and
- an active material impregnated into at least a portion of the micropores of said carbon nanosheet,
- wherein the biological precursor is a nanocrystalline cellulose and the active material is selenium (Se).
1 more element
Dependencies are inferred from the claim text.