Electrochemical capacitor and manufacturing method of electrochemical capacitor
A capacitor and electrochemical technology, which is applied in the direction of electrolytic capacitors, capacitors, circuits, etc., can solve the problems of poor energy storage effect of batteries, and achieve the effects of high capacitance, high energy density and power density, and low self-discharge
Active Publication Date: 2014-12-24
广东赛高环境科技有限公司
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[0003] In order to solve the problem of poor battery energy storage effect in the prior art, the present invention provides an electrochemical capacitor and its preparation method, which achieves the purpose of high energy storage and low self-discharge by improving the electrode material, electrolyte and diaphragm, In order to achieve the above object, the present invention adopts the following technical solutions
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[0022] The realization of the objectives, functional characteristics and advantages of the present invention will be further described below in conjunction with embodiments and with reference to the drawings.
[0023] Reference Figure 1-3 As shown, the electrochemical capacitor includes a plurality of single capacitors 1, an equalizer 2, a positive screw 3, a negative screw 4, a safety valve 5, an elastic pad 6 and a capacitor case 7. The single capacitors 1 are placed side by side in the capacitor case 7. The individual capacitors 1 are connected in series in order. In other embodiments, multiple individual capacitors can be connected in parallel or mixed in series and parallel.
[0024] Both the positive and negative poles of the single capacitor 1 are connected to the corresponding terminals of the equalizer 2, such as image 3 As shown, the charging and discharging current of each single capacitor is ensured to be balanced, the damage caused by the uneven output voltage of eac...
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The invention discloses an electrochemical capacitor and a manufacturing method of the electrochemical capacitor. The electrochemical capacitor comprises a plurality of capacitor bodies. Each capacitor body comprises a shell body, a positive electrode, a negative electrode, a membrane and an electrolyte. Each positive electrode comprises a positive electrode current collector and a positive electrode active substance layer attached to the surface of the positive electrode current collector. Each negative electrode comprises a negative electrode current collector and a negative electrode active substance layer attached to the surface of the negative electrode current collector. The positive electrode current collectors and the negative electrode current collectors are nickel-plated napped metal sheets. The membranes are bidirectional-stretched polypropylene membranes obtained after Co60 irradiation graft modification. The electrolyte is potassium hydroxide solutions containing a small number of cobalt ions and a small number of lithium ions. The electrochemical capacitor is high in capacitance, large in energy density and power density, low in self-discharging rate and long in service life, and has the good energy storage capacity; in addition, the manufacturing technology is simple, and the electrochemical capacitor is quite suitable for serving as an energy storage device for small-and-medium-size wind power generation and solar power generation and a traction power source of various electric cars.
Description
Technical field [0001] The invention belongs to the field of new energy equipment, and more specifically, relates to an electrochemical capacitor and a preparation method thereof. Background technique [0002] At present, small and medium-sized wind power generation and solar power generation mostly use lead-acid batteries for energy storage. Due to the limited battery cycle life of charging and discharging, it is less than 400 times, which has become the main operating cost. As a new type of energy storage device, electrochemical capacitors take into account the advantages of batteries and traditional capacitors. It has a relatively high power density and a considerable energy density. At the same time, the cycle life exceeds 10,000 times, and it is clean and pollution-free, and can be effective Solve the problem. Summary of the invention [0003] In order to solve the problem of poor battery energy storage effect in the prior art, the present invention provides an electrochemic...
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IPC IPC(8): H01G9/26H01G9/02H01G9/035H01G9/042
CPCY02E60/13
Inventor 胡连芝曹杨曹承业
Owner 广东赛高环境科技有限公司
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