Active material, nonaqueous electrolyte battery, battery pack and battery module
摘要
說明書
The positive electrode and the negative electrode produced as described above were laminated with a polyethylene separator sandwiched between them to obtain a laminate. Next, this laminate was coiled and pressed to obtain a flat-shaped coiled electrode group. A positive electrode terminal and a negative electrode terminal were connected to this electrode group.
(Preparation of Nonaqueous Electrolyte)
As a mixed solvent, a mixed solvent of ethylene carbonate and diethyl carbonate (volume ratio of 1:1) was provided. Lithium hexafluorophosphate (LiPF6) was dissolved in this solvent in a concentration of 1 M. Thus, a nonaqueous electrolyte was prepared.
(Assembly of Nonaqueous Electrolyte Battery)
Using the electrode group and the nonaqueous electrolyte produced as described above, a nonaqueous electrolyte battery of Example E was fabricated.
(Charge-And-Discharge Test)
The nonaqueous electrolyte battery of Example E was subjected to a charge-and-discharge test at room temperature. The charge-and-discharge test was performed at a charge-and-discharge current value of 0.2 C (a time discharge rate) within a potential range of 1.8 V to 3.1 V as the battery voltage.
