Electrode and battery using same
A rechargeable battery and electrode technology, which is applied in the field of electrodes and batteries using the electrodes, can solve the problems of batteries with stable energy density, limited battery capacity, and limited exciton concentration, and achieve excellent charge and discharge stability and high specific gravity. Effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0073] 25 mg of the diazine N,N'-dioxide compound represented by general formula (5), 200 mg of graphite powder, and 25 mg of polytetrafluoroethylene resin binder were weighed and mixed in an agate mortar. After about 10 minutes of dry mixing, the mixture was rolled under pressure to provide a thin electrode plate with a thickness of 215 microns. Dry overnight at 80° C. under reduced pressure, punch the electrode plate to form a ring-shaped electrode mold with a diameter of 12 mm.
[0074] Next, the electrode mold was immersed in an electrolytic solution prepared by mixing ethylene carbonate and diethyl carbonate (volume ratio: 3:7) with 1 mol / liter of LiPF as an electrolytic salt. 6 Mix and inject the electrolyte solution into the holes of the electrode mold. An electrode mold as a cathode was installed on a cathode current collector made of aluminum foil, and a porous membrane separator impregnated with the above electrolytic solution was installed on the cathode. After th...
Embodiment 2
[0083] In addition to substituting the diazine N, N'-dioxide compound represented by the general formula [4] for the diazine N, N'-dioxide compound represented by the general formula [5] in Example 1, A battery was fabricated according to the other fabrication steps of Example 1.
[0084] Next, similarly to Example 1, the battery thus produced was charged and discharged. As a result, since a voltage plateau was observed at about 3.8V, it was determined that the battery was operating normally.
[0085] In addition, similarly to Example 1, changes in the voltage of the battery accompanying repeated charge and discharge were also measured. Even after 10 charge-discharge cycles, it was confirmed that the battery still worked like a rechargeable battery. The specific capacitance per unit of active material was calculated to be 100 mAh / g.
Embodiment 3 and 4
[0087] In addition to the diazine N,N'-dioxide compound represented by the general formula [8] (Example 3) and the diazine N,N'-dioxide compound represented by the general formula [11] (Example 4) (average molecular weight: 50,000) instead of the diazine N,N'-dioxide compound represented by the general formula [5] in Example 1, a battery was manufactured according to the manufacturing procedure of Example 1.
[0088] Next, similarly to Example 1, the battery thus produced was charged and discharged. As a result, a voltage plateau was observed in both batteries, and thus the two batteries were determined to be functioning normally.
[0089] In addition, similarly to Example 1, changes in the voltages of these two batteries accompanying repeated charge and discharge were also measured. Even after 10 charge-discharge cycles, it was confirmed that the batteries in Examples 3 and 4 still functioned as rechargeable batteries.
PUM
| Property | Measurement | Unit |
|---|---|---|
| thickness | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More