Title:
A trimanganese tetroxide constituent, a manufacturing method for the same, and its use
Document Type and Number:
Japanese Patent JP6221310
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a trimanganese tetraoxide composition that serves as a positive electrode material for lithium ion secondary batteries excellent in battery characteristics, particularly, charge/discharge cycle characteristics, and a simple method for manufacturing the same.SOLUTION: A trimanganese tetraoxide composition contains a metal compound on its surface. It is preferable that the metal compound is at least one compound selected from the group consisting of compounds of Mg, Al, Si, Ca, Ti, V Cr, Co, Ni, Cu, Zn, Ga, Ge, Zr, Mo, Ag, In, and Sn. Such trimanganese tetraoxide composition can be obtained by a manufacturing method which includes: a crystallization process in which trimanganese tetraoxide is crystallized, without passing through a manganese hydroxide, from an aqueous manganese salt solution that contains manganese ions; and a process for depositing a metal compound on the trimanganese tetraoxide.
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Inventors:
Yasuhiro Fujii
Application Number:
JP2013078639A
Publication Date:
November 01, 2017
Filing Date:
April 04, 2013
Export Citation:
Assignee:
Tosoh Corporation
International Classes:
C01G45/02; C01G53/00
Domestic Patent References:
| JP2008251390A | ||||
| JP2010137996A | ||||
| JP2009176732A | ||||
| JP2001261343A |
Other References:
Pattanayak, J. et al,Preparation and thermal stability of manganese oxides obtained by precipitation from aqueous manganese sulphate solution,Thermochimica Acta,NL,Elsevier Science,1989年11月 1日,153,p193-204
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