Title:
METHOD FOR PREPARING LITHIUM IRON PHOSPHATE NANOPOWDER
Document Type and Number:
WIPO Patent Application WO/2014/109578
Kind Code:
A1
Abstract:
The present invention relates to a method for preparing a lithium iron phosphate nanopowder and a lithium iron phosphate nanopowder prepared by the method, the method comprising the steps of: (a) introducing a lithium precursor, an iron precursor, and a phosphorus precursor into a glycerol solvent so as to prepare a mixed solution; and (b) introducing the mixed solution into a reactor and heating same so as to synthesize a lithium iron phosphate nanopowder at a pressure of 1 bar or more and less than 10 bars. The present invention is configured such that a reaction can be conducted at a relatively low pressure in comparison with the conventional hydrothermal synthesis, supercritical water method, and glycothermal method, and thus can ensure process safety and economical advantage without using a high-temperature, high-pressure reactor and also can easily prepare a lithium iron phosphate nanopowder having a uniform particle size and controlled particle size distribution.
Inventors:
JUN IN KOOK (KR)
CHO SEUNG BEOM (KR)
OH MYOUNG HWAN (KR)
CHO SEUNG BEOM (KR)
OH MYOUNG HWAN (KR)
Application Number:
PCT/KR2014/000269
Publication Date:
July 17, 2014
Filing Date:
January 09, 2014
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
C01G49/00; C01B25/45; C01D15/00
Foreign References:
| KR20110132566A | 2011-12-08 | |||
| JP2008130526A | 2008-06-05 | |||
| KR100808446B1 | 2008-03-03 | |||
| KR101003136B1 | 2010-12-21 | |||
| US5747193A | 1998-05-05 |
Other References:
See also references of EP 2871160A4
None
None
Attorney, Agent or Firm:
BAE, KIM & LEE IP GROUP (KR)
특허법인 태평양 (KR)
특허법인 태평양 (KR)
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