Hollow carbon nanosphere composite based secondary cell electrodes

Patent metadata

Field	Value
Publication number	US-2016351894-A1
Application number	US-201615138787-A
Country	US
Kind code	A1
Filing date	Apr 26, 2016
Priority date	May 27, 2015
Publication date	Dec 1, 2016
Grant date	—

Abstract

The present disclosure relates to composites of hollow carbon nanospheres (HCNS) and a metal, a metalloid, an alloy, a compound thereof, or any combination of the foregoing, and the use of such composites for making ion storage materials, such as negative electrode active material for lithium ion batteries.

First claim

1 . An ion storage material comprising a composite of hollow carbon nanosphere material and a metal, a metalloid, an alloy, a compound thereof, or any combination of the foregoing.

2 . The ion storage material of claim 1 , wherein the weight percentage of hollow carbon nanosphere composite within the ion storage material is not less than about 5%.

3 . The ion storage material of claim 1 , wherein the weight percentage of hollow carbon nanosphere composite within the ion storage material is not less than about 20%.

4 . The ion storage material of claim 1 , wherein the weight percentage of hollow carbon nanosphere composite within the ion storage material is not less than about 30%.

5 . The ion storage material of claim 1 , wherein the weight percentage of metal, metalloid, alloy, a compound thereof, or any combination of the foregoing, within the ion storage material is not less than about 5%.

6 . The ion storage material of claim 1 , wherein the weight percentage of metal, metalloid, alloy, compound thereof, or any combination of the foregoing, within the ion storage material is not less than about 20%.

7 . The ion storage material of claim 1 , wherein the weight percentage of metal, metalloid, alloy, compound thereof, or any combination of the foregoing, within the ion storage material is not less than about 30%.

8 . The ion storage material of claim 1 , wherein the of metal, metalloid, alloy, a compound thereof, or any combination of the foregoing, is selected from the group consisting of As, Si, Ge, Ga, GaAs, Sn, Pb, Bi, Zn, Te, Sb, Al, In, Cd, Au, Ag, Co, Ni, V, Mo, W, Nb, Ta, and Ti, and any combination of the foregoing, a chalconide thereof, a pnictide thereof, a halide thereof, a boride thereof, and any combination of the foregoing.

9 . The ion storage material of claim 1 , further comprising a binder.

10 . The ion storage material claim 9 , wherein the binder is selected from polyvinylidene fluoride, hexafluoropropylene, polyethylene, polyethylene oxide, polypropylene, polytetrafluoroethylene, polyacrylates, alginates, substituted derivatives thereof, copolymers thereof, and any combination thereof.

11 . The ion storage material of claim 9 , wherein the binder is polyacrylic acid.

12 . The ion storage material of claim 1 , further comprising a carbonaceous material.

13 . The ion storage material of claim 12 , wherein the carbonaceous material comprises graphite, lamellar graphite, pitch, coal pitch, coke, carbon black and/or other electrical conducting carbon materials, carbon-arc generated soot, and any combination thereof.

14 . An electrode comprising the ion storage material of claim 1 .

15 . A secondary ion battery comprising the electrode of claim 14 .

16 . A lithium ion storage material comprising a composite of hollow carbon nanosphere material and a metal, a metalloid, an alloy, a compound thereof, or any combination of the foregoing.

17 . The lithium ion storage material of claim 16 , wherein the weight percentage of hollow carbon nanosphere composite within the ion storage material is not less than about 5%.

18 . The lithium ion storage material of claim 16 , wherein the weight percentage of hollow carbon nanosphere composite within the ion storage material is not less than about 20%.

19 . The lithium ion storage material of claim 16 , wherein the weight percentage of hollow carbon nanosphere composite within the ion storage material is not less than about 30%.

20 . The lithium ion storage material of claim 16 , wherein the weight percentage of metal, metalloid, alloy, compound thereof, or any combination of the foregoing, within the ion storage material is not less than about 5%.

21 . The lithium ion storage material of claim 16 , wherein the weight percentage of metal, metalloid, alloy, compound thereof, or any combination of the foregoing, within the ion storage material is not less than about 20%.

22 . The lithium ion storage material of claim 16 , wherein the weight percentage of metal, metalloid, alloy, a compound thereof, or any combination of the foregoing, within the ion storage material is not less than about 30%.

23 . The lithium ion storage material of claim 16 , wherein the of metal, metalloid, alloy, a compound thereof, or any combination of the foregoing, is selected from the group consisting of As, Si, Ge, Ga, GaAs, Sn, Pb, Bi, Zn, Te, Sb, Al, In, Cd, Au, Ag, Co, Ni, V, Mo, W, Nb, Ta, and Ti, and any combination of the foregoing, a chalconide thereof, a pnictide thereof, a halide thereof, a boride thereof, and any combination of the foregoing.

24 . The lithium ion storage material of claim 16 , further comprising a binder.

25 . The lithium ion storage material claim 24 , wherein the binder is selected from polyvinylidene fluoride, hexafluoropropylene, polyethylene, polyethylene oxide, polypropylene, polytetrafluoroethylene, polyacrylates, alginates, substituted derivatives thereof, copolymers thereof, and any combination thereof.

26 . The lithium ion storage material of claim 24 , wherein the binder is polyacrylic acid.

27 . The lithium ion storage material of claim 16 , further comprising a carbonaceous material.

28 . The lithium ion storage material of claim 16 , wherein the carbonaceous material comprises graphite, lamellar graphite, pitch, coal pitch, coke, carbon black and/or other electrical conducting carbon materials, carbon-arc generated soot, and any combination thereof.

29 . An electrode comprising the lithium ion storage material of claim 16 .

30 . A secondary ion battery comprising the electrode of claim 29 .

Assignees

• Univ George Washington

Inventors

• Wagner Michael
• Banek Nathan
• Hays Kevin

Classifications

• H01M4/364 Primary

  as mixtures · CPC title

• H01M4/625

  Carbon or graphite · CPC title

• H01M4/587

  for inserting or intercalating light metals · CPC title

• H01M10/0525

  Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title

• H01M4/38

  of elements or alloys · CPC title