ACTIVE MATERIAL FOR BATTERIES, METHOD FOR MANUFACTURING THE SAME, NONAQUEOUS ELECTROLYTE BATTERY, AND BATTERY PACK

Japanese Patent JP2015084321

A

PROBLEM TO BE SOLVED: To provide an active material for batteries which enables the materialization of a nonaqueous electrolyte battery superior in rate characteristic and cycle characteristics.SOLUTION: An active material for batteries according to an embodiment comprises: particles of a niobium titanium complex oxide; and a carbon material-containing phase. The carbon material-containing phase is formed on at least part of the surface of each niobium titanium complex oxide particle. The niobium titanium complex oxide is expressed by: TiM1NbM2O(where 0≤x<1; 0≤y<1; and the elements M1 and M2 may be identical to each other, or not). According to a Raman chart obtained by Raman spectroscopic measurement with a measurement light source of 532 nm, the carbon material exhibits G band observed in a range of 1530-1630 cm, and D band observed in a range of 12801380 cm. With the carbon material, the ratio I/Iof G-band peak intensity Ito D-band peak intensity Iis 0.8 to 1.2.

ISE KAZUKI
YOSHIDA YORIJI
HARADA YASUHIRO
INAGAKI HIROTAKA
TAKAMI NORIO

JP2014177123A

April 30, 2015

September 01, 2014

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TOSHIBA CORP

H01M4/485; H01M4/36

JP2013069566A	2013-04-18
JP2012199146A	2012-10-18
JP2012099287A	2012-05-24

JIAN-TAO HAN ET AL.: "3-V Full Cell Performance of Anode Framework TiNb2O7/Spinel LiNi0.5Mn1.5O4", CHEMISTRY OF MATERIALS, vol. 23, no. 15, JPN6017003718, 9 August 2011 (2011-08-09), pages 3404 - 3407, ISSN: 0003494388

Kurata Masatoshi
Yoshihiro Fukuhara
Nobuhisa Nogawa
Takashi Mine
Naoki Kono
Katsu Sunagawa
Morisezo Iseki
Tadashi Inoue
Tatsushi Sato
Takashi Okada
Mihoko Horiuchi

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