Manufacturing methods of materials powder for performance improved electrode and using the same electrode and its application

Patent metadata

Field	Value
Publication number	US-9312533-B2
Application number	US-201313959684-A
Country	US
Kind code	B2
Filing date	Aug 5, 2013
Priority date	Apr 3, 2013
Publication date	Apr 12, 2016
Grant date	Apr 12, 2016

Abstract

Disclosed is a material for an electrode having an excellent performance and an excellent durability by maintaining high electrical conductivity and by restraining the growth of the grain at a high temperature. The material can be manufactured by synthesizing composite materials through use of a metallic material of Mo and a ceramic material, and then the composite materials can be used as the electrode.

First claim

What is claimed is:

1. A method for manufacturing powder for an electrode material, the method comprising:
(i) preparing a first solution formed by dissolving ceramic powder in distilled water;
(ii) forming ceramic slurry by adding a complex agent to the first mixed solution of step (i);
(iii) performing a first heat treatment process on the ceramic slurry of step (ii);
(iv) forming a third solution mixed with the ceramic slurry by adding a second solution including Mo to the ceramic slurry of step (iii);
(v) performing a second heat treatment process on the third solution of step (iii);
(vi) forming a Mo organic complex mixed with the ceramic slurry by adding polymer precursor to the third solution of step (v);
(vii) performing a third heat treatment process on the Mo organic complex mixed with the ceramic slurry of step (vi);
(viii) forming Mo gel on the ceramic particle by performing a first calcining process on the Mo organic complex mixed with the ceramic slurry of step (vii);
(ix) forming powder precursor including Mo and ceramic by performing a second calcining process on the Mo gel on the ceramic particle of step (viii); and
(x) forming composite powder including Mo and ceramic by performing a third calcining process on the powder precursor including Mo and ceramic of step (ix).

2. The method of claim 1 , wherein, in step (i), the ceramic powder comprises at least any one of TiN, TiC, NbC, RuW and Ru 2 O.

3. The method of claim 1 , wherein, in step (ii), the complex agent comprises at least any one of ethylene diamine tetraacetic acid (EDTA), citric acid, acetic acid, butyric acid, palmitic acid, oxalic acid, tartaric acid.

4. The method of claim 1 , wherein, in step (iv), the second solution including Mo comprises at least one of ammonium molybdate, sodium molybdate and molybdenum nitride.

5. The method of claim 1 , wherein, in step (vi), the polymeric precursor uses distilled water as a solvent and comprises at least one of ethylene glycol, glycerine, propylene glycol and butylene glycol.

6. The method of claim 1 , wherein the heat treatment processes in steps (iii), (v) and (vii) are performed at a temperature from 60 to 100° C. for 10 to 50 minutes.

7. The method of claim 1 , wherein the first calcining process of step (viii) is performed at a temperature from 150 to 210° C. for 1 to 3 hours in the air.

8. The method of claim 1 , wherein the second calcining process of step (ix) is performed at a temperature from 400 to 600° C. for 2 to 4 hours in the air.

9. The method of claim 1 , wherein the third calcining process of step (x) is performed at a temperature from 700 to 1100° C. for 5 to 7 hours in a hydrogen atmosphere.

Assignees

• Korea Energy Research Inst

Inventors

• Kim Sun-Dong
• Woo Sang-Kuk
• Kim Se-Young
• Joo Jong-Hoon
• Han In-Sub
• Seo Doo-Won
• Suh Min-Soo

Classifications

• H01M4/0471 Primary

  involving thermal treatment, e.g. firing, sintering, backing particulate active material, thermal decomposition, pyrolysis · CPC title

• H01M10/39

  working at high temperature · CPC title

• H02N11/00

  Generators or motors not provided for elsewhere; Alleged perpetua mobilia obtained by electric or magnetic means (by hydrostatic pressure F03B17/04; {by mechanical means F03G7/10;} by dynamo-electric means, {including arrangements of permanent magnets interacting with other permanent magnets,} H02K53/00) · CPC title

• Y02E60/10

  Energy storage using batteries · CPC title

• H10N10/01 Primary

  Manufacture or treatment · CPC title