Electrode comprising a transition metal oxidenitride or a nitrogen-doped transition metal oxide as electronically active material

Patent metadata

Field	Value
Publication number	US-9929405-B2
Application number	US-201113084118-A
Country	US
Kind code	B2
Filing date	Apr 11, 2011
Priority date	Apr 12, 2010
Publication date	Mar 27, 2018
Grant date	Mar 27, 2018

Abstract

An electrode comprises a conductor and an electrode coating, said electrode coating comprising as electronically active material a transition metal (T) oxidenitride of formula Li x T I m T II n N y O z in form of nanoparticles, wherein x=0-3, y+z=2-4, y>0, z>=0.25, m+n=1, m=0-1, n=0-1, T I and T II both being transition metals of the groups IVB, VB, VIB and VIIB, and periods 3d, 4d and 5d, in particular transition metals selected from Zr, Nb, Mo, Ti, V, Cr, W, Mn, Ni, Co, Fe and Cu. Dependent on the kind of transition metal, its oxidation state and the Li content, such materials may be used as anode materials or as cathode materials, respectively.

First claim

The invention claimed is:

1. A lithium ion battery, comprising:
an electrode, comprising:
a conductor; and
an electrode coating comprising an electronically active material, said electronically active material consisting of a transition metal (T) oxidenitride of formula Li x T I m T II n N y O z in form of nanoparticles,
wherein x=0-3, y+z=2-4, y>0, z≥0.25, m+n=1, m=0-1, n=0-1,
one of T I and T II is Nb, and the other of T I and T II is selected from the group consisting of Zn, Mo, V, Cr, W, Ni, Co, Fe, and Cu, and
when T I represents Nb, m is not zero, and when T II represents Nb, n is not zero.

2. The lithium ion battery of claim 1 , wherein T I and T II are in their highest oxidation stage and x is 0.

3. The lithium ion battery of claim 1 , wherein m is 0.5 to 1 and n is 0.5 to 0.

4. The lithium ion battery of claim 1 , wherein m=1 and n=0.

5. The lithium ion battery of claim 1 , wherein the nanoparticulate electronically active material is conductively coated.

6. The lithium ion battery of claim 1 , wherein the nanoparticulate electronically active material is bonded by a carbonacious product obtained by pyrolysis.

7. The lithium ion battery of claim 1 , wherein the nanoparticulate electronically active material is bonded by a nanoparticulate conductive binder.

8. The lithium ion battery of claim 1 ,
wherein T I is selected from the group consisting of Zn, Nb, Fe, and Cu, and
wherein said transition metal oxidenitride is a nitrogen doped transition metal oxide.

9. The lithium ion battery of claim 1 , wherein the electrode material comprises a nanoparticulate conductive filler.

10. The lithium ion battery of claim 5 , wherein the nanoparticulate electronically active material is conductively coated with a carbonacious product obtained by pyrolysis.

11. A lithium ion battery, comprising:
an electrode, comprising:
a conductor; and
an electrode coating comprising an electronically active material, said electronically active material consisting of a transition metal (T) oxidenitride of formula Li x T I m T II n N y O z in form of nanoparticles,
wherein x=0-3, y+z=2-4, y>0, z≥0.25, m+n=1, m=0-1, n=0-1, and
wherein the transition metal (T) oxidenitride consists of at least one of NbON and NbN 0.7 O 1.3 .

12. lithium ion battery of claim 1 , wherein T I and T II are each independently transition metals selected from the group consisting of Nb, Cr, Ni, Co, and Cu.

Assignees

• Nesper Reinhard
• Wang Xiao Jun
• Krumeich Frank
• Belenos Clean Power Holding Ag

Inventors

• Nesper Reinhard
• Wang Xiao-Jun
• Krumeich Frank

Classifications

• H01M10/052

  Li-accumulators · CPC title

• H01M4/5825 Primary

  Oxygenated metallic salts or polyanionic structures, e.g. borates, phosphates, silicates, olivines · CPC title

• C01B21/20

  Nitrogen oxides; Oxyacids of nitrogen; Salts thereof · CPC title

• H01M4/62

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

• H01M4/13 Primary

  Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof · CPC title