| US 7,595,134 B2 | ||
| Nonaqueous electrolyte battery, lithium-titanium composite oxide, battery pack and vehicle | ||
| Hiroki Inagaki, Kawasaki (Japan); and Norio Takami, Yokohama (Japan) | ||
| Assigned to Kabushiki Kaisha Toshiba, Tokyo (Japan) | ||
| Filed on Sep. 19, 2005, as Appl. No. 11/228,430. | ||
| Claims priority of application No. 2005-141146 (JP), filed on May 13, 2005. | ||
| Prior Publication US 2006/0257746 A1, Nov. 16, 2006 | ||
| Int. Cl. H01M 4/48 (2006.01) | ||
| U.S. Cl. 429—231.1 [429/231.5; 252/182.1] | 18 Claims |
| 1. A nonaqueous electrolyte battery, comprising:
a case;
a positive electrode provided in the case;
a negative electrode provided in the case; and
a nonaqueous electrolyte provided in the case; wherein
the negative electrode comprises a lithium-titanium composite oxide, wherein
a crystallite diameter of the lithium-titanium composite oxide is not larger than 6.9×102 Å
the lithium-titanium composite oxide comprises at least one of Na and K, and
an amount of the at least one of Na and K contained in the lithium-titanium composite oxide is not smaller than 0.10% by weight
and not larger than 3.04% by weight.
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