Title:
METHOD FOR CARBON-COATING LITHIUM-ION BATTERY ELECTRODE ACTIVE MATERIAL
Document Type and Number:
WIPO Patent Application WO/2016/058491
Kind Code:
A1
Abstract:
Provided is a method for carbon-coating a lithium-ion battery electrode active material, comprising: providing an electrode active material precursor and a first solvent; the electrode active material precursor undergoes a liquid-phase reaction in said first solvent; when the liquid phase reaction is complete, a first liquid mixture is obtained; said first liquid mixture comprises the first solvent, and the electrode active material particles dispersed in the first solvent; a carbon source is provided; the carbon source is added to the first liquid mixture, and the carbon source is dissolved in said first solvent to obtain a second liquid mixture; the second liquid mixture is dried to obtain electrode active material particles having a carbon source coating layer; in said electrode active material particles having a carbon source coating layer, the carbon source coats the surface of the electrode active material particles; and the electrode active material particles having a carbon source coating layer are sintered to obtain the carbon-coated lithium-ion battery electrode active material.
Inventors:
LIU SHAOJUN (CN)
WANG LI (CN)
LI JIANJUN (CN)
HE XIANGMING (CN)
LUO JING (CN)
XU CHENGHAO (CN)
SHANG YUMING (CN)
GAO JIAN (CN)
WANG YAOWU (CN)
WANG LI (CN)
LI JIANJUN (CN)
HE XIANGMING (CN)
LUO JING (CN)
XU CHENGHAO (CN)
SHANG YUMING (CN)
GAO JIAN (CN)
WANG YAOWU (CN)
Application Number:
PCT/CN2015/091425
Publication Date:
April 21, 2016
Filing Date:
October 06, 2015
Export Citation:
Assignee:
JIANGSU HUADONG INST OF LI ION BATTERY CO LTD (CN)
UNIV TSINGHUA (CN)
UNIV TSINGHUA (CN)
International Classes:
H01M4/139
Foreign References:
| CN104282887A | 2015-01-14 | |||
| CN102468485A | 2012-05-23 | |||
| CN103000874A | 2013-03-27 | |||
| CN103247778A | 2013-08-14 |
Other References:
WEN RENHONGQUAN ET AL.: "Preparation and Electrochemical Performance of a Secondary Mesoporous LiFeP04/C Microsphere", JOURNAL OF MATERIALS SCIENCE AND ENGINEERING, vol. 31, no. 2, 30 April 2013 (2013-04-30), ISSN: 1673-2812
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)
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