Nonaqueous electrolyte battery

1. A nonaqueous electrolyte battery comprising:

a positive electrode;

a negative electrode;

a separator interposed between the positive electrode and the negative electrode; and

a nonaqueous electrolyte,

wherein the positive electrode includes vanadium pentoxide, a first carbon black, and a first binder,

wherein the negative electrode includes a silicon-containing material, graphite, a second carbon black, and a second binder, and

wherein, when a battery voltage is 0 V, a potential of each of the positive electrode and the negative electrode is 2.5 to 3.5 V versus metal lithium.

2. The nonaqueous electrolyte battery according to claim 1 , wherein

an amount of the first carbon black included in the positive electrode is 2 to 10 parts by mass for 100 parts by mass of the vanadium pentoxide.

3. The nonaqueous electrolyte battery according to claim 1 , wherein

an amount of the graphite included in the negative electrode is 10 to 40 parts by mass for 100 parts by mass of the silicon-containing material.

4. The nonaqueous electrolyte battery according to claim 1 , wherein

an amount of the second carbon black included in the negative electrode is 2 to 10 parts by mass for 100 parts by mass of the silicon-containing material.

5. The nonaqueous electrolyte battery according to claim 1 , wherein

the silicon-containing material includes a silicon alloy.

6. The nonaqueous electrolyte battery according to according to claim 1 , wherein

the nonaqueous electrolyte includes a nonaqueous solvent, and a solute dissolved in the nonaqueous solvent,

the nonaqueous solvent includes 1,2-diethoxyethane, and

the solute includes at least one selected from a group consisting of lithium tetrafluoroborate and lithium bis(trifluoromethanesulphonyl)imide.