To provide a nonaqueous electrolyte battery improved in cycle life, an active material used for the nonaqueous electrolyte battery, a method for producing the active material, and a battery pack.
According to an embodiment of the present invention, there is provided an active material which includes a titanate compound, has a peak in a region of from 1580 cm-1 to 1610 cm-1 in an infrared diffuse reflectance spectrum after pyridine is adsorbed and detached, and satisfies the following expression (I): S1/S2≥2.4. In the expression, S1 represents an area of a peak present in a region of from 1430 cm-1 to 1460 cm-1 in the infrared diffuse reflectance spectrum, and S2 represents an area of a peak present in a region of from 1520 cm-1 to 1560 cm-1 in the infrared diffuse reflectance spectrum.
IWASAKI TAKUYA
HOSHINA KEIGO
| JP2010157398A | 2010-07-15 | |||
| JP2012123952A | 2012-06-28 | |||
| JP2009245929A | 2009-10-22 | |||
| JP2004277263A | 2004-10-07 | |||
| JP2010157398A | 2010-07-15 | |||
| JP2012123952A | 2012-06-28 | |||
| JP2009245929A | 2009-10-22 | |||
| JP2004277263A | 2004-10-07 |
| WO2010013726A1 | 2010-02-04 | |||
| WO2010137154A1 | 2010-12-02 | |||
| WO2010013726A1 | 2010-02-04 | |||
| WO2010137154A1 | 2010-12-02 |
Takakura Shigeo
Satoshi Kono
Makoto Nakamura
Yoshihiro Fukuhara
Takashi Mine
Toshio Shirane
Sadao Muramatsu
Nobuhisa Nogawa
Kocho Chojiro
Naoki Kono
Katsu Sunagawa
Morisezo Iseki
Tatsushi Sato
Takashi Okada
Mihoko Horiuchi
Takenori Masanori
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