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Method for making energy storage device

A manufacturing method and energy storage device technology, applied in the manufacture of hybrid/electric double layer capacitors, hybrid capacitor electrodes, etc., can solve the problems of insufficient moisture removal, long baking time, etc., achieve good aging resistance, and increase product capacity Effect

Active Publication Date: 2013-01-16
AVX NEW ENERGY (CHENGDU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The adhesives SBR and LA132 used in the general coating method decrease the bonding performance above 150°C, so the baking temperature is below 150°C, which results in a longer baking time and insufficient moisture removal.

Method used

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  • Method for making energy storage device
  • Method for making energy storage device
  • Method for making energy storage device

Examples

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Effect test

Embodiment 1

[0042] The manufacturing method of the energy storage device of the present invention:

[0043] Step 1, to 1500m 2 The activated carbon above / g is the active material, and the mixture of conductive carbon black and conductive graphite is used as the conductive agent, and the weight ratio of activated carbon to the conductive agent is 1:9, and it is dry mixed in a V-type mixer, and the mixing time is 30 minutes;

[0044] Step 2, the mixture is sprayed into the PTFE emulsion diluted by a mixture with a weight ratio of ethanol and water of 1:3 in a stirring and mixing granulator, and granulated. The weight percent concentration of the diluted PTFE emulsion is 20%;

[0045] Step 3, passing the granulated material through a sieving machine. Take 2 to 5mm of the particles;

[0046] In step 4, the screened material is fed through a screw feeder, and heated and rolled three times in a four-roller roller press to become a self-supporting film;

[0047] Step 5, coating the aluminum...

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Abstract

The invention discloses a method for making an electrode. The method comprises the following steps of: 1, performing dry blending of active carbon serving as an active substance, and conductive carbon black, conductive graphite or a mixture of conductive carbon black and conductive graphite, which serves as a conductive agent in a mixer; 2, spraying diluted polytetrafluoroethylene (PTFE) emulsion to the mixed material in a granulator, and granulating; 3, allowing the granulated material to pass through a sieving machine; 4, feeding the sieved material into a roller press through a screw feeder, and performing repeated heating and rolling to obtain a self-support membrane; and 5, coating a conducive adhesive on an aluminum foil current collector, adhering with the self-support membrane before the conducive adhesive is not dried, and drying to obtain the electrode. The invention also discloses an energy storage device, which comprises the electrode, and discloses a method for making the energy storage device. The electrode plate has the characteristics of high compaction density, high capacity, small internal resistance and long life. The prepared energy storage device has similar characteristics.

Description

technical field [0001] The invention relates to a manufacturing method of an energy storage device, and belongs to the manufacturing field of an electrical energy storage device. Background technique [0002] Devices that typically store electrical energy include batteries and capacitors. [0003] Supercapacitors are energy storage devices between electrolytic capacitors and secondary batteries. The charge storage of supercapacitors occurs on electrodes, an electric double layer formed by electrolytes, and underpotential deposition, electrochemical adsorption, desorption and oxidation on the electrode surface. Reduction-generated charge migration. Its capacity is 20 to 200 times that of traditional capacitors, up to Farad level or even thousand Farad level, and its specific power is more than 10 times that of batteries. It has the advantages of high power density of conventional capacitors and high energy density of rechargeable batteries, and has the advantages of charging...

Claims

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Application Information

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IPC IPC(8): H01G11/84H01G11/86H01G11/22
Inventor 赵波
Owner AVX NEW ENERGY (CHENGDU) CO LTD
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