Electrode material, method for the production thereof, and use of same

Patent metadata

Field	Value
Publication number	US-12392045-B2
Application number	US-202017767157-A
Country	US
Kind code	B2
Filing date	Oct 7, 2020
Priority date	Oct 28, 2019
Publication date	Aug 19, 2025
Grant date	Aug 19, 2025

Abstract

A material for an electrode, the material for as well as a method of making the material for an electrode comprising or consisting of a compound of formula (1)

M2Ni1− x Co x O4+δ

and/or of formula (2)

La1− y M y Ni1− x Co x O4+δ
where M represents Pr and/or Nd, 0.0≤x≤0.2, 0.25≤δ≤0.3 and 0<y≤10 0.5.

First claim

The invention claimed is:

1. Material for an electrode, the material comprising of a compound of formula (1)
M 2 Ni 1−x Co x O 4+δ   (1)

and/or of formula (2)
La 1-y M y Ni 1−x Co x O 4+δ   (2)

where M represents Pr and/or Nd, 0.0≤x≤0.2, 0.25≤δ≤0.3 and 0<y<0.5, further comprising a compound of formula (3) LaNi 0.6 Fe 0.4 O 3−δ (3) where 0<δ≤0.05, which is provided as a layer on the compound of formula (1) and/or of formula (2), and wherein the material has a perovskite structure.

2. Material according to claim 1 , wherein δ of formulas (1) and (2) has the values 0.25, 0.28 or 0.3.

3. Material according to claim 1 , wherein it is selected from Pr 2 NiO 4+δ , Pr 2 Ni 0.9 Co 0.1 O 4αδ , Pr 2 Ni 0.8 Co 0.2 O 4+δ , Nd 2 NiO 4+δ , Nd 2 Ni 0.9 Co 0.1 O 4+δ , Nd 2 Ni 0.8 Co 0.2 O 4+δ and La 1.5 Pr 0.5 Ni 1−x CoxO 4+δ .

4. Material according to claim 1 , wherein the material has a layered perovskite structure.

5. Material according to claim 1 , wherein it has an average particle size of 0.5 μm to 1 μm.

6. Material according to claim 1 , wherein x has the values 0.0, 0.1 or 0.2.

7. Material according to claim 6 , wherein δ of formulas (1) and (2) has the values 0.25, 0.28 or 0.3.

Assignees

• Forschungszentrum Juelich Gmbh

Inventors

• Foit Severin
• De Haart L G J
• Vibhu Vaibhav
• Eichel Rüdiger-A

Classifications

• C25B11/0773

  of the perovskite type · CPC title

• C25B11/073

  characterised by the electrocatalyst material · CPC title

• C25B11/054

  Electrodes comprising electrocatalysts supported on a carrier · CPC title

• H01M4/9066

  of metal-ceramic composites or mixtures, e.g. cermets · CPC title

• H01M4/9033

  Complex oxides, optionally doped, of the type M1MeO3, M1 being an alkaline earth metal or a rare earth, Me being a metal, e.g. perovskites · CPC title