NONAQUEOUS ELECTROLYTE BATTERY AND BATTERY PACK

摘要

According to one embodiment, a nonaqueous electrolyte battery includes a container, a positive electrode, and a negative electrode. The container satisfies Formula (1) of 0.15≦(Tmin/Tmax)≦1. The positive electrode includes a positive electrode active material represented by the composition formula Li1-aNixCoyMnzO2. The negative electrode includes a spinel type lithium titanium oxide. A nominal capacity of the nonaqueous electrolyte battery is in a range of from 5 Ah to 200 Ah. When a state of charge based on the nominal capacity is 50%, an open circuit voltage is in a range of from 2.12 V to 2.24 V.

主权项

1. A nonaqueous electrolyte battery comprising:
a container that satisfies Formula (1) below; a positive electrode which is provided in the container and contains a positive electrode active material represented by a composition formula Li1-aNixCoyMnzO2 (−0.1≦a≦0.4, 0.1≦x/(y+z)≦1.3); and a negative electrode that is provided in the container and contains a spinel type lithium titanium oxide; wherein a nominal capacity is in a range of from 5 Ah to 200 Ah, an open circuit voltage is in a range of from 2.12 V to 2.24 V when a state of charge based on the nominal capacity reaches 50%,
0.15≦(Tmin/Tmax)≦1   (1) wherein Tmax represents a maximum value of a height, width, and thickness of the container, and Tmin represents a minimum value of the height, width and thickness of the container.