Oblon, McClelland, Maier & Neustadt, L.L.P.
Nonaqueous electrolyte battery
According to one embodiment, there is provided a nonaqueous electrolyte battery. The nonaqueous electrolyte battery includes a positive electrode, a negative electrode and a nonaqueous electrolyte. The negative electrode includes a negative electrode material layer. The negative electrode material layer includes a negative electrode active material capable of absorbing and releasing lithium at a potential of 0.78 V (vs. Li/Li+) or more. A film containing a compound having a propylene glycol backbone is formed on at least a part of a surface of the negative electrode material layer. A content of the compound having the propylene glycol backbone in the film is 2 μmol to 40 μmol per g of a weight of the negative electrode material layer.
KABUSHIKI KAISHA TOSHIBA
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Hideki Kazuya Hidesato Yuki Dai
Satake Kuriyama Saruwatari Watanabe Yamamoto