Oblon, McClelland, Maier & Neustadt, L.L.P.
Nonaqueous electrolyte battery
According to an embodiment, a nonaqueous electrolyte battery is provided. The nonaqueous electrolyte includes a negative electrode, a positive electrode and a nonaqueous electrolyte. The negative electrode includes negative electrode active material particles. The negative electrode active material particles include a spinel-type lithium titanate. The negative electrode has such a surface state that a ratio ALi/ATi of an Li atom abundance ratio ALi to a Ti atom abundance ratio ATi, according to a photoelectron spectroscopic measurement for a surface, is increased at a rate of 0.002 to 0.02 per cycle in a charge-and-discharge cycle test under the predetermined condition.
KABUSHIKI KAISHA TOSHIBA
H H H H H H Y H H H H H H H H Y
H01M H01M H01M H01M H01M H01M Y02E H01M H01M H01M H01M H01M H01M H01M H01M Y02P
additional additional inventional inventional inventional inventional additional inventional inventional additional inventional inventional inventional inventional inventional additional
Dai Hidesato Hiromichi Hideki
Yamamoto Saruwatari Kuriyama Satake