Electric double layer capacitor
A technology of electric double layer capacitors and batteries, which is applied in the directions of double layer capacitors, electrolytic capacitors, capacitors, etc., can solve the problems of insufficient expansion of the electric double layer area.
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Embodiment approach 1
[0058] figure 1 with figure 2 Each is a cross-sectional view and a front view showing the structure of the electric double layer capacitor according to Embodiment 1 of the present invention. Reference figure 1 , 2 It can be seen that the cell portion 9 is formed by stacking multiple sets of positive electrodes 6a and negative electrodes 6b facing each other with a porous separator 7 interposed therebetween. As the positive electrode 6a and the negative electrode 6b, a layer with a thickness of several hundreds of μm can be used by bonding activated carbon with a diameter of about 10 μm and nanogate carbon with a fluorine resin such as PTFE (polytetrafluoroethylene) as an adhesive. .
[0059] The positive electrode 6a is formed on the positive electrode collector plate 5a, and the negative electrode 6b is formed on the negative electrode collector plate 5b. Aluminum foil can be used as the positive electrode current collector plate 5a, and the positive electrode 6a is formed on...
Embodiment approach 2
[0077] Figure 6 In order to show a perspective view of the structure of the electric double layer capacitor according to the second embodiment of the present invention, a part of the case 1 and the electrolyte reservoir 8 are cut away. In addition, Figure 7 To schematically show that it is cut by a virtual plane 20 Figure 6 A cross-sectional view of the cross-sectional structure of the electric double layer capacitor shown.
[0078] In the above first embodiment, an example of a laminated electric double layer capacitor is described, such as Figure 6 , 7 As shown, the present invention can also be applied to a wound type electric double layer capacitor.
[0079] The wound type electric double layer capacitor is different from the laminated type in that the battery unit 9 is formed by overlapping and winding the respective sheets of the positive electrode 6a, the separator 7 and the negative electrode 6b multiple times. The electric double layer capacitor of the second embodim...
Embodiment approach 3
[0082] Figure 8 This is a front view showing the structure of an electric double layer capacitor according to Embodiment 3 of the present invention. Such as Figure 8 As shown, the electric double layer capacitor according to the third embodiment has a case 101, an electrolyte reservoir 104 and a battery portion 105 housed in the case 101, and a positive terminal 102 and a negative terminal 103. The electrolyte reservoir 104 is composed of a plurality of electrolyte reservoirs 104a.
[0083] Picture 9 with Picture 10 Each is a cross-sectional view and a perspective view showing the structure of the electrolyte reservoir 104 and the battery section 105 in a state housed in the case 101. in Picture 10 , For the convenience of explanation, not shown in Picture 9 The separator 110 shown in. Such as Picture 9 , 10 As shown, the battery unit 105 has a structure in which a plurality of groups of positive electrodes 106 and negative electrodes 107 facing each other with a porous s...
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