Topological quantum framework, composite anode active material, anode, lithium battery, semiconductor, and device comprising the topological quantum framework, and method of preparing the topological quantum framework

Patent metadata

Field	Value
Publication number	US-10930923-B2
Application number	US-201815860932-A
Country	US
Kind code	B2
Filing date	Jan 3, 2018
Priority date	Aug 2, 2017
Publication date	Feb 23, 2021
Grant date	Feb 23, 2021

Abstract

A topological quantum framework includes a plurality of one-dimensional nanostructures disposed in different directions and connected to each other, wherein a one-dimensional nanostructure of the plurality of one-dimensional nanostructures includes a first composition including a metal capable of incorporating and deincorporating lithium, and wherein the topological quantum framework is porous.

First claim

What is claimed is:

1. A topological quantum framework, comprising:
a plurality of one-dimensional nanostructures disposed in different directions and connected to each other,
wherein a one-dimensional nanostructure of the plurality of one-dimensional nanostructures comprises a first composition comprising a metal capable of incorporating and deincorporating lithium,
wherein the first composition comprises about 0.1 mole to about 1 mole of lithium and about 0.7 mole to about 1.3 mole of silicon, based on one mole of the first composition, and an amount of the silicon in the first composition is greater than an amount of the lithium in the first composition, and
wherein the topological quantum framework is porous.

2. The topological quantum framework of claim 1 , wherein a diameter of a one-dimensional nanostructure of the plurality of one-dimensional nanostructures is about 5 nanometers or less.

3. The topological quantum framework of claim 1 , wherein a diameter of each one-dimensional nanostructure of the plurality of one-dimensional nanostructures is 5 nanometers or less.

4. The topological quantum framework of claim 1 , wherein a one-dimensional nanostructure of the plurality of one-dimensional structures is linear.

5. The topological quantum framework of claim 1 , wherein a length direction of a one-dimensional nanostructure in the plurality of one-dimensional nanostructures extends in a direction which is different from a tangent-line direction at a surface of the topological quantum framework, wherein the tangent-line direction corresponds to a tangent on the surface closest to the one-dimensional nanostructure.

6. The topological quantum framework of claim 1 , wherein a first one-dimensional nanostructure intersects a second one-dimensional nanostructure.

7. The topological quantum framework of claim 1 , wherein each one-dimensional nanostructure of the plurality of one-dimensional nanostructures intersects another one-dimensional nanostructure.

8. The topological quantum framework of claim 1 , wherein the topological quantum framework comprises a pore defined by the plurality of one-dimensional nanostructures, and a diameter of the pore is 5 nanometers or less.

9. The topological quantum framework of claim 8 , wherein a cross-section of the pore has a shape defined by a first one-dimensional nanostructure disposed in a first direction, a second one-dimensional nanostructure disposed in a second direction, a third one-dimensional nanostructure disposed in a third direction, and a fourth one-dimensional nanostructure disposed in a fourth direction,
wherein the second one-dimensional nanostructure intersects the first one-dimensional nanostructure, the third one-dimensional nanostructure intersects the second nanostructure, and the fourth one-dimensional nanostructure intersects the first one-dimensional nanostructure and the third one-dimensional nanostructure.

10. The topological quantum framework of claim 8 , wherein a cross-section of the pore has a shape comprising a circle, an oval, a rectangle, a triangle, a hexagon, a pentagon, or a combination thereof.

11. The topological quantum framework of claim 8 , wherein the topological quantum framework comprises a non-periodic and disordered arrangement of the pores, and wherein a shape of the pores is irregular.

12. The topological quantum framework of claim 1 , further comprising a first two-dimensional nanostructure disposed between the plurality of one-dimensional nanostructures.

13. The topological quantum framework of claim 12 , wherein the first two-dimensional nanostructure intersects a second two-dimensional nanostructure.

14. The topological quantum framework of claim 12 , wherein the first two-dimensional nanostructure has a thickness of about 5 nanometers or greater and a length of 20 nanometers or greater.

15. The topological quantum framework of claim 12 , wherein the first two-dimensional nanostructure has a same composition as the plurality of one-dimensional nanostructures.

16. The topological quantum framework of claim 1 , wherein the topological quantum framework has a porosity of about 50% or greater.

17. The topological quantum framework of claim 1 having a form of porous particles.

18. The topological quantum framework of claim 1 , wherein a pore of the topological quantum framework has a spherical cage shape, a sphericity of about 0.7 or greater, and an aspect ratio of about 4 or less.

19. The topological quantum framework of claim 1 , wherein a diameter of the topological quantum framework is about 200 nanometers or less.

20. The topological quantum framework of claim 1 , wherein the first composition has an amorphous structure.

21. The topological quantum framework of claim 1 , wherein the first composition comprises a metal and a Group 14 element having an atomic weight of 20 or greater.

22. The topological quantum framework of claim 1 , wherein the first composition is represented by Formula 1:
M x SiQ y   Formula 1

wherein, in Formula 1, M comprises Li or Li and Fe, Co, Mn, Ni, Au, Ag, Pt, Nb, Mo, V, Re, Ti, Ba, Li, Na, Mg, Ca, Al, or a combination thereof;
Q is C, N, or O; and
0<x<1 and 0<y<2.

23. The topological quantum framework of claim 1 , wherein the first composition comprises a lithium silicide.

24. A topological quantum framework comprising:
a plurality of one-dimensional nanostructures disposed in different directions and connected to each other,
wherein a one-dimensional nanostructure of the plurality of one-dimensional nanostructures comprises a first composition comprising a metal capable of incorporating and deincorporating lithium,
wherein the topological quantum framework is porous, and
wherein the first composition comprises a lithium silicide represented by Formula 2:
Li x Si  Formula 2

wherein, in Formula 2, 0<x<1.

25. The topological quantum framework of claim 1 , wherein a band gap of the topological quantum framework is greater than a band gap of a bulk material having the same composition as the topological quantum framework.

26. The topological quantum framework of claim 1 , wherein the plurality of one-dimensional nanostructures further comprise a dopant.

27. The topological quantum framework of claim 1 , further comprising a coating layer disposed on a surface of the topological quantum framework, wherein the coating layer comprises a residual lithium compound comprising Li 2 CO 3 , Li 2 O, Li 2 C 2 O 4 , LiOH, LiX, ROCO 2 Li, HCOLi, ROLi, (ROCO 2 Li) 2 , (CH 2 OCO 2 Li) 2 , Li 2 S, LiSO y , or a combination thereof,
wherein, in the residual lithium compound,
X is F, Cl, I, or Br;
R is a C1-C20 hydrocarbon group;
x is 0 to 1; and
y is 1 to 4.

28. A composite anode active material comprising a topological quantum framework, wherein the topological quantum framework comprises:
a plurality of one-dimensional nanostructures disposed in different directions and connected to each other, wherein the plurality of one-dimensional nanostructures comprises a first composition comprising a metal capable of incorporating and deincorporating lithium,
wherein the first composition comprises about 0.1 mole to about 1 mole of lithium and about 0.7 mole to about 1.3 mole of silicon, based on one mole of the first composition, and an amount of the silicon in the first composition is greater than an amount of the lithium in the first co

Assignees

• Samsung Electronics Co Ltd

Inventors

• Ogata Ken
• Ko Dong-Su
• Jeon Seongho
• Takei Koichi
• Han Sungsoo
• Lee Junho

Classifications

• H01M4/0461

  Electrochemical alloying · CPC title

• H01M4/62

  Selection of inactive substances as ingredients for active masses, e.g. binders, fillers · CPC title

• H01M4/386 Primary

  Silicon or alloys based on silicon · CPC title

• C01D15/08

  Carbonates; Bicarbonates · CPC title

• C01B33/06 Primary

  Metal silicides (alloys C22) · CPC title