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A kind of manufacturing method of high specific capacity supercapacitor

A supercapacitor, high specific capacity technology, applied in the field of capacitor manufacturing, can solve the problems of weak charge absorption capacity of energy storage devices, cycle life capacity attenuation of energy storage devices, low specific energy, etc., so as to enhance the charge absorption capacity and improve the cycle life. , the effect of increasing the proportion

Active Publication Date: 2017-09-26
SICHUAN NEWBORN POWER MFG
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Problems solved by technology

[0014] In order to solve the problems of low specific energy (organic system) of the existing supercapacitor, cycle life capacity decay of the energy storage device, and weak charge absorption ability of the energy storage device, the present invention proposes chemical methods such as cleaning and metal loading of high-surface carbon materials. Modification means, and charge promoters such as titanium oxide and antimony-doped tin dioxide are added to the electrode material, and a method of preparing slurry in stages is used to invent a method for manufacturing a high specific capacity organic supercapacitor

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  • A kind of manufacturing method of high specific capacity supercapacitor

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Embodiment Construction

[0029] The manufacture method of high specific capacity supercapacitor of the present invention, comprises the following steps:

[0030] S010, preparation of CMC solution

[0031] Add 98.5kg of deionized water into a 150L vacuum stirring tank, weigh 1.5kg of battery-grade CMC, add it to the vacuum stirring tank in three times, add 0.5kg each time, and the interval between each feeding is 15-20min, and the ambient temperature is 25±2 °C; after the addition, stir in vacuum for 2-4 hours until the CMC is completely dissolved, and store in vacuum;

[0032] S020. Preparation of conductive paste

[0033] Take by weighing 67.5kg of the above-mentioned CMC solution in a 100L vacuum stirring tank, 15kg of conductive agent acetylene black, 10kg of conductive graphite, 25kg of graphene slurry, and 5kg of accelerator (wherein rutile type TiO 2 2.5kg, nano antimony-doped tin dioxide 1.5kg, thiourea 1kg) were sequentially added into the vacuum stirring tank, wherein acetylene black was ad...

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Abstract

The invention relates to a manufacturing method of a high specific capacity supercapacitor, which comprises: adding deionized water into a vacuum stirring tank, then adding battery-grade CMC, stirring and dissolving in a vacuum, and storing in a vacuum; weighing the CMC solution in a vacuum stirring tank, Add conductive agent, acetylene black, conductive graphite, graphene slurry, and accelerator into the vacuum stirring tank in sequence, and vacuumize after vacuum stirring for standby; take deionized water in the vacuum stirring tank, add PVA solution and modify High performance surface functionalized activated carbon material, vacuumize after vacuum stirring; add conductive slurry, activated carbon slurry and SBR solution into the vacuum stirring tank, filter after vacuum stirring; evenly coat the prepared slurry on the corroded aluminum foil On the surface, high-capacity supercapacitor pole pieces can be obtained after drying, rolling, slitting and stripping, and die-cutting. The invention has simple steps and convenient operation, can effectively improve the specific capacity of the supercapacitor and solve the problem of low specific energy of the supercapacitor.

Description

technical field [0001] The invention relates to the technical field of capacitor manufacturing, in particular to a method for manufacturing a high specific capacity supercapacitor. Background technique [0002] At present, the research on supercapacitors mainly focuses on the preparation of high-performance electrode materials. Because of all the factors affecting the performance of chemical batteries, the performance of electrode materials plays the most important role. exist Super capacitor Among the electrode materials, various carbon materials are most widely used. According to the principle of electric double layer, the electric double layer capacitance on the electrode surface is about 20μF / cm 2 . Theoretically, if the specific surface area is 2500m 2 / g activated carbon as electrode material, the available specific capacity is as high as 500F / g. This high theoretical value has led to great interest in carbon materials with high specific surface area. Therefore,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G11/84H01G11/86
CPCY02E60/13
Inventor 蒋虎南漆长席吴孟强林彬
Owner SICHUAN NEWBORN POWER MFG
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