LITHIUM CONTAINING NANOFIBERS
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Abstract
Lithium-containing nanofibers, as well as processes for making the same, are disclosed herein. In some embodiments described herein, using high throughput (e.g., gas assisted and/or water based) electrospinning processes produce nanofibers of high energy capacity materials with continuous lithium-containing matrices or discrete crystal domains.
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Citations
63 Claims
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1-43. -43. (canceled)
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44. A process for producing a nanofiber comprising a backbone of a lithium-containing-material, the process comprising:
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gas-assisted electrospinning a fluid stock to produce a nanofiber, the fluid stock comprising a combination of (i) polymer, (ii) lithium salt, and (iii) nickel precursor, cobalt precursor, manganese precursor, or a combination thereof; thermally treating the nanofiber under oxidative conditions at a temperature of at least 300°
C. to produce the lithium-containing nanofiber;the lithium-containing-material having formula (I);
LiaMbXc
(I)wherein M is Ni, Co, Mn, or a combination thereof; X is O; a is 1-2; b is 0-2; and c is 1-4. - View Dependent Claims (45, 46, 47, 48, 49, 50, 51, 52)
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53. A nanofiber comprising a backbone of a lithium-containing-material, the lithium-containing-material having the formula (I):
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LiaMbXc
(I)wherein M is Ni, Co, Mn, or a combination thereof X is O; a is 1-2; b is 0-2; and c is 1-2. - View Dependent Claims (54, 55, 56, 57, 58, 59, 60)
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61. A composition comprising a combination of polymer and metal precursor;
- the metal precursor comprising lithium salt, nickel precursor, cobalt precursor, and manganese precursor;
the polymer being polyvinylalcohol (PVA), polyacrylonitrile (PAN), or polyvinyl pyrrolidone (PVP); and
the metal precursor being combined with the polymer in a metal precursor-to-polymer weight ratio of at least 1;
4. - View Dependent Claims (62, 63)
- the metal precursor comprising lithium salt, nickel precursor, cobalt precursor, and manganese precursor;
Specification