Title:
METHOD FOR MANUFACTURING CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2013/125798
Kind Code:
A1
Abstract:
The present invention relates to a method for manufacturing a cathode active material for a lithium secondary battery and, more particularly, to a method for manufacturing a cathode active material for a lithium secondary battery, comprising: generating manganese complex deposit by restoring and depositing manganese and heterogeneous metal elements from a mixed solution containing a manganese compound and a heterogeneous metal element compound; and generating lithium manganese complex oxide by mixing the manganese complex deposit with a lithium-contained metal compound and firing the mixture at 400 to 750 ºC. According to the present invention, a cathode active material for a lithium secondary battery in which vanadium is effectively doped into lithium manganese complex oxide can be manufactured, and the use thereof enables the production of a lithium secondary battery having improved capacity and remarkably improved charging and discharging efficiency.
Inventors:
JEONG YEON-UK (KR)
KIM WON-TAE (KR)
KANG KYUNG-WAN (KR)
KIM WON-TAE (KR)
KANG KYUNG-WAN (KR)
Application Number:
PCT/KR2013/000715
Publication Date:
August 29, 2013
Filing Date:
January 29, 2013
Export Citation:
Assignee:
KYUNGPOOK NAT UNIV IND ACAD (KR)
International Classes:
H01M4/1391; H01M4/131; H01M4/505; H01M10/052
Foreign References:
| JP2000072443A | 2000-03-07 | |||
| KR100814881B1 | 2008-03-18 | |||
| JP2003142096A | 2003-05-16 | |||
| KR20100064631A | 2010-06-15 |
Other References:
L. HERNAN ET AL.: "Sol-gel derived Li-V-Mn-O spinels as cathodes for rechargeable lithium batteries", SOLID STATE IONICS, vol. 133, 2000, pages 179 - 188, XP004212233
Attorney, Agent or Firm:
YOU ME PATENT AND LAW FIRM (649-10 Yoksam-dongKangnam-ku, Seoul 135-080, KR)
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Claims: