Title:
VANADIUM DIOXIDE POWDER AND PREPARATION METHOD AND USE THEREFOR
Document Type and Number:
WIPO Patent Application WO/2012/097688
Kind Code:
A1
Abstract:
Provided is a vanadium dioxide powder and a preparation method and use therefor. The A-phase accounts for 80% or more of the vanadium dioxide powder. The powder has a stable crystal form, excellent ductility, favorable mechanical properties and processability, and can be used as electrode material for batteries. The preparation method comprises using an alkaline reagent to titrate an ionic aqueous solution of quadrivalent vanadium so as to obtain a suspension, and then subjecting the suspension to a hydrothermal reaction, or directly subjecting the ionic aqueous solution of quadrivalent vanadium to a hydrothermal reaction. The method does not require specialized equipment, is easy to implement, and results in a high yield.
Inventors:
GAO YANFENG (CN)
DAI LEI (CN)
CAO CHUANXIANG (CN)
LUO HONGJIE (CN)
JIN PINGSHI (CN)
CHEN CHANG (CN)
DAI LEI (CN)
CAO CHUANXIANG (CN)
LUO HONGJIE (CN)
JIN PINGSHI (CN)
CHEN CHANG (CN)
Application Number:
PCT/CN2012/070026
Publication Date:
July 26, 2012
Filing Date:
January 04, 2012
Export Citation:
Assignee:
SHANGHAI INST CERAMICS (CN)
GAO YANFENG (CN)
DAI LEI (CN)
CAO CHUANXIANG (CN)
LUO HONGJIE (CN)
JIN PINGSHI (CN)
CHEN CHANG (CN)
GAO YANFENG (CN)
DAI LEI (CN)
CAO CHUANXIANG (CN)
LUO HONGJIE (CN)
JIN PINGSHI (CN)
CHEN CHANG (CN)
International Classes:
C01G31/02; H01M4/48
Domestic Patent References:
| WO2010090274A1 | 2010-08-12 |
Foreign References:
| CN102115167A | 2011-07-06 | |||
| CN102120614A | 2011-07-13 | |||
| CN1279211A | 2001-01-10 | |||
| CN101920996A | 2010-12-22 | |||
| CN101863511A | 2010-10-20 |
Other References:
JI, SHIDONG ET AL.: "Synthesis and phase transition behavior of w-doped VO2(A) nanorods", JOURNAL OF THE CERAMIC SOCIETY OF JAPAN, vol. 118, no. 10, October 2010 (2010-10-01), pages 867 - 871
OKA, YOSHIO ET AL.: "Powder X-Ray Crystal Structure of VO2(A)", JOURNAL OF SOLID STATE CHEMISTRY, vol. 86, May 1990 (1990-05-01), pages 116 - 124
OKA, YOSHIO ET AL.: "Powder X-Ray Crystal Structure of VO2(A)", JOURNAL OF SOLID STATE CHEMISTRY, vol. 86, May 1990 (1990-05-01), pages 116 - 124
Attorney, Agent or Firm:
HANQIAO PATENT (CN)
上海瀚桥专利代理事务所（普通合伙） (CN)
上海瀚桥专利代理事务所（普通合伙） (CN)
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Claims: