LITHIUM PHOSPHORUS-BASED COMPLEX OXIDE CARBON COMPOSITE, MANUFACTURING METHOD THEREOF, ELECTROCHEMICAL DEVICE, AND LITHIUM ION SECONDARY BATTERY

Japanese Patent JP2016122582

A

PROBLEM TO BE SOLVED: To provide a lithium phosphorus-based complex oxide carbon composite which allows a high charge/discharge capacity to be obtained when used as a positive electrode active material of an electrochemical device even in the case of using a raw material including a trivalent substance.SOLUTION: A lithium phosphorus-based complex oxide carbon composite used for a positive electrode active material of an electrochemical device comprises: a lithium phosphorus-based complex oxide of which the surface is coated with carbon. The mass ratio of fluorine ions dissolving in an eluate arranged by dispersing the lithium phosphorus-based complex oxide carbon composite in ultrapure water to the lithium phosphorus-based complex oxide carbon composite is 500-15000 ppm. The lithium phosphorus-based complex oxide has a composition expressed by the following general formula (1): LiFeMPOF(-0.1≤x<1, 0≤z≤1, and 0≤a≤4) (1). (In the formula, M represents at least one metal element selected from a group consisting of Mn, Ni, Co, V, Cr, Al, Nb, Ti, Cu and Zn.)SELECTED DRAWING: None

AWANO HIDEKAZU
KAMO HIROMICHI
HIROSE KIICHI
YOSHIKAWA HIROKI

JP2014261986A

July 07, 2016

December 25, 2014

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SHINETSU CHEMICAL CO

H01M4/131; C01B25/45; C01B25/455; H01G11/50; H01M4/136; H01M4/36; H01M4/48; H01M4/58; H01M10/052; H01M10/0525

JP2013157260A	2013-08-15
JP2013211116A	2013-10-10
JP2012204307A	2012-10-22
JP2009018989A	2009-01-29
JP2011113822A	2011-06-09
JP2014143078A	2014-08-07

Mikio Yoshimiya

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