US 2009/0269274 A1 · PRODUCTION METHOD OF LAYERED CRYSTAL MATERIAL

Abstract

An ammonium metavanadate is heat-treated to 500° C. or less at a predetermined rate of temperature rise, whereby a microcrystal particle of a vanadium pentoxide can be formed. According to the production method described above, a crystal of a nano-vanadium having a layer length of 100 nm or less can be formed. The nano-vanadium formed by the production method described above can effectively be used for an electrode of an electric storage device such as a battery. The production method according to the present invention can be linked to a conventional production method in which an ammonium metavanadate can be formed in the course of the method, whereby the present invention can smoothly be embodied.

Claims9

Dependent claims

A production method of a layered crystal material of a microcrystal of a vanadium oxide having a layer length of 100 nm, the method comprising:

a nano-crystallizing process for growing a crystal so as to have a layer length of 100 nm or less, wherein
the nano-crystallizing process includes a heat-treatment process for heating a salt of vanadic acid at a temperature equal to or less than a predetermined temperature.

Dependencies are inferred from the claim text.

Facts

Application

12/425,516Filed 17 Apr 2009

Priority

JP 2008-11361424 Apr 2008

Published

29 Oct 2009

Term ends

Not estimatedThe source records don’t support an estimate.

Classification17 codes

C30B 29/16
Inorganic compounds or compositions: oxides
B82Y 30/00
Nanotechnology for materials or surface science
C01G 31/02
Compounds of vanadium: oxides
C30B 7/08
Single-crystal growth from solutions using solvents which are liquid at normal temperature, e.g. aqueous solutions: by cooling of the solution

Production method of layered crystal material

Life of this patent

Production method of layered crystal material

Life of this patent

Abstract

Claims9