Nitride- and oxide-modified electrode compositions and their methods of making

Patent metadata

Field	Value
Publication number	US-2018316011-A1
Application number	US-201816025637-A
Country	US
Kind code	A1
Filing date	Jul 2, 2018
Priority date	Sep 3, 2013
Publication date	Nov 1, 2018
Grant date	—

Abstract

Compositions and methods of making compositions are provided for nitride- and/or oxide-modified electrode compositions. In certain embodiments, the nitride- and/or oxide-modified compositions have the general formula M1-zM′zOaF3-xNy. Such compositions may be used as bulk or surface compositions, and used in a battery as the anode or cathode. In other embodiments, the electrode includes a surface coating composition selected from metal nitrides and metal oxides, and a core composition having the formula M1-zM′zOaF3-x, or an oxide fluoride.

First claim

1 . An electrode for a battery comprising:
a nitride- or oxide-modified core composition having the following formula: M 1-z M′ z O a F 3-x N y , wherein: 0≤z≤1; −3≤x<0 or 0<x<3; 0≤a≤1.5; y>0; M is selected from the group consisting of: Ti, V, Cr, Mn, Fe, Co, Ni, Cu, and Bi; and M′ is selected from the group consisting of: Na, Mg, Al, Si, P, K, Ca, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, Ge, As, Rb, Sr, Y, Zr, Nb, Mo, Tc, Ru, Rh, Pd, Ag, Cd, In, Sn, Sb, Te, Cs, Ba, Hf, Ta, W, Re, Os, Ir, Pt, Au, Tl, Pb, and Bi.

2 . The electrode of claim 1 , wherein M is Fe.

3 . The electrode of claim 2 , wherein z=0 or 1.

4 . (canceled)

5 . The electrode of claim 1 , wherein a>0 and x=3.

6 . The electrode of claim 1 , wherein the composition has a structure selected from the group consisting of: a ReO 3 -type structure, a rutile-type structure, a bixbyite-type structure, or a combination thereof.

7 - 9 . (canceled)

10 . The electrode of claim 1 , wherein the composition is used as a cathode in a lithium-ion battery further comprising an anode and an electrolyte, wherein the battery has at least one of the following performance characteristics:
(a) a capacity at least 700 mAh/g at a rate of C/10, a capacity of at least 300 mAh/g at a rate of 1 C, or a capacity of at least 100 mAh/g at a rate of 10 C; and (b) a functional discharge capacity of at least 50%, 60%, 70%, 80%, or 90% of the initial discharge capacity after 100 cycles.

11 . An electrode for a battery comprising:
a surface coating composition selected from the group consisting of metal nitrides and metal oxides; a core composition having the formula M 1-z M′ z O a F 3-x , wherein: 0≤a≤1.5; 0≤z≤1; −3≤x<0 or 0<x<3; M is selected from the group consisting of: Ti, V, Cr, Mn, Fe, Co, Ni, Cu, and Bi; and M′ is selected from the group consisting of: Na, Mg, Al, Si, P, K, Ca, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, Ge, As, Rb, Sr, Y, Zr, Nb, Mo, Tc, Ru, Rh, Pd, Ag, Cd, In, Sn, Sb, Te, Cs, Ba, Hf, Ta, W, Re, Os, Ir, Pt, Au, Tl, Pb, and Bi.

12 . The electrode of claim 11 , wherein the surface coating composition is a metal nitride.

13 . The electrode of claim 11 , wherein the surface coating composition is a metal oxide.

14 . The electrode of claim 11 , wherein M is Fe and z=0.

15 . (canceled)

16 . A battery comprising:
an anode; a cathode; an electrolyte capable of supporting reversible deposition and stripping of metal at the anode, and reversible intercalation and deintercalation of the metal at the cathode; wherein either the anode or the cathode comprises a nitride- or oxide-modified core composition of the following formula, M 1-z M′ z O a F 3-x N y , wherein: 0≤z≤1; −3≤x<0 or 0<x<3; 0≤a≤1.5; y>0; M is selected from the group consisting of: Ti, V, Cr, Mn, Fe, Co, Ni, Cu, and Bi; and M′ is selected from the group consisting of: Na, Mg, Al, Si, P, K, Ca, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, Ge, As, Rb, Sr, Y, Zr, Nb, Mo, Tc, Ru, Rh, Pd, Ag, Cd, In, Sn, Sb, Te, Cs, Ba, Hf, Ta, W, Re, Os, Ir, Pt, Au, Tl, Pb, and Bi.

17 . (canceled)

18 . The battery of claim 16 , wherein M is Fe.

19 . The battery of claim 18 , wherein z=0 or 1.

20 . (canceled)

21 . The battery of claim 16 , wherein a>0 and x=3.

22 . The battery of claim 16 , wherein the anode or the cathode further comprises a surface coating composition.

23 . The battery of claim 22 , wherein the surface coating composition is a metal nitride or a metal oxide.

24 . (canceled)

25 . The battery of claim 16 , wherein the anode or the cathode further comprises a surface coating composition, wherein the surface coating composition is a metal nitride composition, wherein the metal in the metal nitride composition is selected from the group consisting of: Na, Mg, Al, Si, P, K, Ca, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, Ge, As, Rb, Sr, Y, Zr, Nb, Mo, Tc, Ru, Rh, Pd, Ag, Cd, In, Sn, Sb, Te, Cs, Ba, Hf, Ta, W, Re, Os, Ir, Pt, Au, Tl, Pb, and Bi.

26 . The battery of claim 16 , wherein the anode comprises the nitride- or oxide-modified metal core composition and the cathode comprises an active material selected from the group consisting of one or more phases: LiCoO 2 , LiMn 2 O 4 , Li 2 MnO 3 , LiNiO 2 , Li(Mn 1.5 Ni 0.5 )O 4 , LiFePO 4 , Li 2 FePO 4 F, Li 3 CoNiMnO 6 , and Li(Li a Ni x Mn y Co z )O 2 .

27 . (canceled)

28 . The battery of claim 16 , wherein the battery is selected from the group consisting of the following battery types: lithium-ion, aluminum-ion, magnesium-ion, sodium-ion, metal-air, and metal-sulfur, wherein the metal is lithium, aluminum, magnesium, zinc, or sodium.

29 . (canceled)

30 . The battery of claim 16 having at a capacity at least 700 mAh/g at a rate of C/10, a capacity of at least 300 mAh/g at a rate of 1 C, or a capacity of at least 100 mAh/g at a rate of 10 C.

31 - 42 . (canceled)

Assignees

• Ut Battelle Llc

Inventors

• Bridges Craig A
• Paranthaman Mariappan Parans
• Veith Gabriel M
• Bi Zhonghe

Classifications

• H01M10/054

  Accumulators with insertion or intercalation of metals other than lithium, e.g. with magnesium or aluminium · CPC title

• H01M4/136

  Electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy · CPC title

• H01M10/0525

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

• H01M4/58 Primary

  of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates · CPC title

• H01M4/366

  as layered products · CPC title