Electrode, battery cell and battery cell arrangement

Patent metadata

Field	Value
Publication number	US-2019088932-A1
Application number	US-201615738819-A
Country	US
Kind code	A1
Filing date	Jun 23, 2016
Priority date	Jun 23, 2015
Publication date	Mar 21, 2019
Grant date	—

Abstract

According to embodiments of the present invention, an electrode is provided. The electrode includes silicon, tin, and a non-alloy of a transition metal. According to further embodiments of the present invention, a battery cell including the electrode and a battery arrangement having a plurality of battery cells are also provided. Methods of forming the electrode, the battery cell and the battery arrangement are also provided.

First claim

1 . An electrode comprising:
silicon; tin; and a non-alloy of a transition metal.

2 . The electrode as claimed in claim 1 , wherein the transition metal is selected from the group consisting of iron, manganese, nickel, cobalt, vanadium, copper, zinc, and combinations thereof.

3 . The electrode as claimed in claim 1 , wherein at least one of the silicon, the tin or the transition metal is crystalline.

4 . The electrode as claimed in claim 1 , wherein the electrode comprises:
10-80 wt % of the silicon; 1-50 wt % of the tin; and 1-50 wt % of the transition metal.

5 . The electrode as claimed in claim 1 , wherein the electrode is free of an alloy of the transition metal.

6 - 14 . (canceled)

15 . The electrode as claimed in claim 1 , further comprising:
a carrier, a coating provided on the carrier; wherein the silicon, the tin, and the non-alloy of the transition metal are comprised in the coating.

16 . The electrode as claimed in claim 15 , wherein the carrier is electrically conductive.

17 . A battery cell comprising:
a first electrode as claimed in claim 1 ; a second electrode; and an electrolyte electrically coupled to the first electrode and the second electrode.

18 - 24 . (canceled)

25 . A method of forming an electrode, the method comprising:
providing a starting material comprising a precursor material of silicon, a precursor material of tin and a precursor material of a transition metal; and processing the starting material to form an electrode comprising the silicon, the tin, and a non-alloy of the transition metal.

26 . The method as claimed in claim 25 , wherein the transition metal is selected from the group consisting of iron, manganese, nickel, cobalt, vanadium, copper, zinc, and combinations thereof.

27 . The method as claimed in claim 25 , wherein at least one of the silicon, the tin or the transition metal is crystalline.

28 . The method as claimed in claim 25 , wherein providing a starting material comprises providing 10-80 wt % of the precursor material of the silicon, 1-50 wt % of the precursor material of the tin, and 1-50 wt % of the precursor material of the transition metal.

29 . The method as claimed in claim 25 , wherein processing the starting material comprises performing a mechanical ball milling process on the starting material.

30 - 34 . (canceled)

35 . The method as claimed claim 29 , wherein, after the mechanical ball milling process, processing the starting material further comprises forming a mixture comprising the silicon, the tin, and the non-alloy of the transition metal.

36 . The method as claimed in claim 35 , wherein the mixture further comprises a carbon-based material.

37 . (canceled)

38 . The method as claimed in claim 35 , wherein the mixture further comprises a polymeric material.

39 . (canceled)

40 . The method as claimed in claim 35 , wherein processing the starting material further comprises:
providing a carrier; and coating the carrier with the mixture to form the electrode.

41 . (canceled)

42 . The method as claimed in claim 25 , wherein the electrode is free of an alloy of the transition metal.

43 - 55 . (canceled)

56 . The electrode as claimed in claim 1 , further comprising a carbon-based material.

57 . The electrode as claimed in claim 1 , further comprising a polymeric material.

Assignees

• Univ Nanyang Tech
• The Maritime And Port Authority Of Singapore

Inventors

• Yazami Rachid
• Zhang Wenyu

Classifications

• H01M4/387

  Tin or alloys based on tin · CPC title

• H01M4/134

  Electrodes based on metals, Si or alloys · CPC title

• H01M10/052

  Li-accumulators · CPC title

• H01M4/1395

  of electrodes based on metals, Si or alloys · CPC title

• H01M4/622

  being polymers · CPC title