Title:
PREPARATION METHOD OF LITHIUM COBALT OXIDE
Document Type and Number:
WIPO Patent Application WO/2015/027821
Kind Code:
A1
Abstract:
A preparation method of lithium cobalt oxide comprises: using a cobalt salt solution and an alkaline solution as reactants, and reacting the reactants under stirring in a controlled crystallization kettle having a buffering agent therein according to a controlled crystallization method, so as to prepare spherical hydroxyl cobalt oxide; putting the spherical hydroxyl cobalt oxide in a lithium hydroxide solution, and carrying out hydrothermal reaction in a hydrothermal reaction kettle to displace hydrogen in hydroxyl cobalt oxide with lithium in lithium hydroxide, thus generating spherical lithium cobalt oxide.
Inventors:
FANG MOU (CN)
WANG YAOWU (CN)
HE XIANGMING (CN)
WANG LI (CN)
SHANG YUMING (CN)
GAO JIAN (CN)
GUO JIANWEI (CN)
MAO ZONGQIANG (CN)
WANG YAOWU (CN)
HE XIANGMING (CN)
WANG LI (CN)
SHANG YUMING (CN)
GAO JIAN (CN)
GUO JIANWEI (CN)
MAO ZONGQIANG (CN)
Application Number:
PCT/CN2014/084280
Publication Date:
March 05, 2015
Filing Date:
August 13, 2014
Export Citation:
Assignee:
JIANGSU HUADONG INST OF LI ION BATTERY CO LTD (CN)
UNIV TSINGHUA (CN)
UNIV TSINGHUA (CN)
International Classes:
H01M4/525; C01D15/00; C01G51/00
Foreign References:
| CN103490062A | 2014-01-01 | |||
| CN103482710A | 2014-01-01 | |||
| CN102689933A | 2012-09-26 | |||
| CN102344173A | 2012-02-08 |
Other References:
OKUBO, M. ET AL.: "Nanosize Effect on High-Rate Li-Ion Intercalation in LiCo02 Electrode", J. AM. CHEM. SOC., vol. 23, no. 129, 19 May 2007 (2007-05-19), pages 7444 - 7452
CHRISTENSEN, M. ET AL.: "Structure, Size, and Morphology Control of Nanocrystalline Lithium Cobalt Oxide", CRYSTAL GROWTH & DESIGN, vol. 11, no. 3, 20 January 2011 (2011-01-20), pages 753 - 758
FANG, MOU ET AL.: "Research on Preparation of CoOOH Controlled Crystallization Method", PROCEEDINGS OF 30TH ANNUAL MEETING ON POWER SOURCES, 31 July 2013 (2013-07-31), pages 150
HE, XIANGMING ET AL.: "Preparation of Spherical Materials Based on Controlled Crystallization", ENGINEERING SCIENCE, vol. 8, no. 7, 31 July 2006 (2006-07-31), pages 36 - 41
CHRISTENSEN, M. ET AL.: "Structure, Size, and Morphology Control of Nanocrystalline Lithium Cobalt Oxide", CRYSTAL GROWTH & DESIGN, vol. 11, no. 3, 20 January 2011 (2011-01-20), pages 753 - 758
FANG, MOU ET AL.: "Research on Preparation of CoOOH Controlled Crystallization Method", PROCEEDINGS OF 30TH ANNUAL MEETING ON POWER SOURCES, 31 July 2013 (2013-07-31), pages 150
HE, XIANGMING ET AL.: "Preparation of Spherical Materials Based on Controlled Crystallization", ENGINEERING SCIENCE, vol. 8, no. 7, 31 July 2006 (2006-07-31), pages 36 - 41
Attorney, Agent or Firm:
SHENZHEN DINGYAN INTELLECTUAL PROPERTY AGENCY CO.,LTD (CN)
深圳市鼎言知识产权代理有限公司 (CN)
深圳市鼎言知识产权代理有限公司 (CN)
Download PDF: