NONAQUEOUS ELECTROLYTE BATTERY AND BATTERY PACK

摘要

One embodiment of the present invention provides a nonaqueous electrolyte battery. This nonaqueous electrolyte battery comprises a negative electrode, a positive electrode and a nonaqueous electrolyte. The negative electrode contains a negative electrode active material having a lithium adsorption/desorption potential of 0.8 V (vs. Li/Li+) or more. The positive electrode contains a positive electrode active material represented by LiMn1-x-yFexAyPO4 (wherein 0 < x ≤ 0.3, 0 ≤ y ≤ 0.1, and A represents at least one element selected from the group consisting of Mg, Ca, Al, Ti, Zn and Zr) and a substance that is capable of adsorbing lithium at a potential of 3.3 V (vs. Li/Li+) or less.