Supercapacitor electrode core and manufacturing method for supercapacitor
A technology of supercapacitor and manufacturing method, which is applied in the manufacture of hybrid/electrical double-layer capacitors, protection/regulation of hybrid/electrical-double-layer capacitors, hybrid boxes/shells/packages, etc. Unreasonable, poor electrical insulation and other problems, to achieve good insulation effect, avoid short circuit of capacitors, and obvious benefits
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Embodiment 1
[0027] Such as figure 1 As shown, the supercapacitor electrode core is sequentially composed of a first active material layer 10, a first current collector 20, a second active material layer 11, a first separator 30, a third active material layer 12, and a second current collector 21 from the inside to the outside. , the fourth active material layer 13, and the second diaphragm 31 are wound, such as Figure 4 As shown, the width between the upper and lower ends of the first current collector 20, the second current collector 21, the first diaphragm 30, and the second diaphragm 31 is L1, the first active material layer 10, the second active material layer 11, the third active material layer The width between the upper and lower ends of the active material layer 12 and the fourth active material layer 13 is L2 and the positions correspond to each other. The geometric relationship between L1 and L2 is: L1>L2, which is for welding at the reserved place on the current collector reg...
Embodiment 2
[0029] Such as figure 2 As shown, the difference between Embodiment 2 and Embodiment 1 is that the first active material layer 10, the first current collector 20, the second active material layer 11, the first separator 30, the third active material layer 12, the second current collector 21. The fourth active material layer 13 and the second diaphragm 31 are formed by winding around the shaft sheet 41. The shaft sheet 41 and the round rod 40 have the same function as a coiling rod to assist the electrode core to be wound in an organized manner, and the material is uniform. Can be made of thermoplastics such as polycarbonate or polybutylene terephthalate. The shaft piece 41 is a "back"-shaped hollow structure, which is conducive to fully filling the inner ring of the electrode core with electrolyte.
Embodiment 3
[0031] Such as image 3 As shown, the difference between the third embodiment and the above embodiments is that the first active material layer 10, the first current collector 20, the second active material layer 11, the first separator 30, the third active material layer 12, the second current collector 21. The fourth active material layer 13 and the second diaphragm 31 are directly driven by the rotating shaft of the winding machine to wind the electrode core. After the winding is completed, the rotating shaft is pulled out. Since there is no winding rod in the middle of the electrode core, the inner ring of the electrode core The tension is relatively loose to ensure that the gap between the inner ring of the electrode core is sufficient.
[0032]In the above-mentioned embodiment, because the conductive effect and anti-corrosion effect of aluminum foil are excellent, the first current collector 20 and the second current collector 21 can directly use untreated aluminum foil ...
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