Sparkle Power LLC

Jia Ding

David Mitlin

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.

Battery with active materials stored on or in carbon nanosheets

An energy storage device, such as a sodium ion capacitor, including an anode and a cathode, at least one of the anode and the cathode including a nitrogen and oxygen functionalized carbon (NOFC). The NOFC has a nitrogen content greater than 4 wt %, such as 13 wt %, an oxygen content greater than 8 wt %, such as 11 wt %, and a surface area greater than 800 mg, such as 945 mg. The energy storage device has favorable reversible and rate capability, such as 437 mAhgat 100 mAg, and 185 mAhgat 1600 mA g.

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Edmonton, Canada

Jia Ding