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US 11,688,846 B2Granted
Batteries incorporating silica fibers
AssigneeAmerican Nano, LLC
InventorsMitch Dellinger, Surya Raj Banks
Life of this patent
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Abstract
Embodiments of the invention include batteries and other charge-storage devices incorporating sheets and/or powders of silica fibers and methods for producing such devices. The silica fibers may be formed via electrospinning of a sol gel produced with a silicon alkoxide reagent, such as tetraethyl ortho silicate, alcohol solvent, and an acid catalyst.
Claims30
A method of fabricating a charge-storage device, the method comprising:
- forming an anode region comprising an anode material, the anode material comprising carbon;
- forming a cathode region comprising a cathode material, the cathode material comprising lithium;
- forming at least one sheet of silica fibers at least in part by (i) electrospinning a sol-gel to form a mat of silica fibers, (ii) fragmenting the mat to form silica fiber powder, and (iii) pressing at least some of the silica fiber powder to form the sheet of silica fibers;
- and
- disposing a separator containing an electrolyte material between the anode region and the cathode region,
- wherein the separator comprises (i) one or more said sheets of silica fibers, and (ii) a polymeric layer.
3 more elements
A method of fabricating a charge-storage device, the method comprising:
- forming an anode region comprising an anode material, the anode material comprising carbon;
- forming a cathode region comprising a cathode material, the cathode material comprising a silica fiber powder and a lithium additive, wherein forming the cathode region comprises (i) electrospinning a sol-gel to form a mat of silica fibers, and (ii) fragmenting the mat to form silica fiber powder;
- and
- disposing a separator containing an electrolyte material between the anode region and the cathode region,
- wherein the separator comprises (i) one or more sheets of silica fibers, and (ii) a polymeric layer.
2 more elements
Dependencies are inferred from the claim text.