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Novel super capacitor and manufacturing method thereof

A supercapacitor and a new type of technology, applied in the field of new supercapacitors and their preparation, can solve the problems of blocked supercapacitors, excessive internal resistance, and inability to enlarge the size, and achieve the effect of simple production process and large specific volume.

Active Publication Date: 2014-04-30
KUNMING NATAI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the conductivity of the existing active self-supporting electrodes is difficult to compare with that of metals, and the internal resistance of supercapacitors made of them is too high, and it is also difficult to connect the active self-supporting electrodes to the tabs, resulting in a size that cannot be enlarged, making the active Supercapacitors with self-supporting structural electrodes hinder practical applications
[0005] The traditional supercapacitor electrode provides electrode support and current collection for the metal current collector. The slurry made of active powder is applied to the current collector. The mass of the supercapacitor prepared in this way is too large; the active self-supporting electrode is completely unnecessary For additional current collectors, the active material itself is used as the support and current collector, and the internal resistance of supercapacitors prepared in this way is too large
The present invention aims to overcome the defects of excessive mass of supercapacitors prepared by traditional paste coating methods and excessive internal resistance of current active self-supporting electrode methods, and provide a new type of supercapacitor and its preparation method

Method used

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  • Novel super capacitor and manufacturing method thereof
  • Novel super capacitor and manufacturing method thereof

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preparation example Construction

[0041] The present invention also discloses a method for preparing a novel supercapacitor, including printing metal grid lines, connecting lead-out electrode terminals, placing diaphragm stacks, pre-packaging, liquid injection, packaging and standing, specifically:

[0042] (1) Print the metal grid lines, print the metal conductive paste on the active self-supporting electrodes, dry, and cure and form;

[0043] (2) Connect the lead-out electrode end, and connect the lead-out electrode end with the metal grid line;

[0044] (3) Place the diaphragm stack, and fold the electrode and diaphragm together by means of one layer of electrodes and one layer of diaphragm;

[0045] (4) Pre-encapsulation, encapsulating the folded electrode and diaphragm, leaving an opening;

[0046] (5) Liquid injection, inject electrolyte into the capacitor from the opening;

[0047] (6) Shape the opening and seal, and let it stand.

[0048] The printing of the metal grid lines specifically adopts one ...

Embodiment 1

[0051] Cut the carbon nanotube paper into a rectangle of suitable size, print a conductive silver grid line on the electrode side by screen printing, use conductive glue to connect the electrode end of the lead electrode to the printed silver grid line, dry and cure Forming; fold the carbon nanotube paper electrode and separator prepared in the previous step together in a sandwich shape; package the folded electrode and separator with aluminum-plastic film, leaving an opening; inject electrolyte from the opening; close the opening and shape it , to make a new type of supercapacitor after standing still.

Embodiment 2

[0053]Cut carbon nanotubes and activated carbon nanocomposite self-supporting electrodes into rectangles of suitable size, print conductive silver grid lines on one side of the electrodes by screen printing, dry, and solidify to shape; weld the electrode end of the lead-out electrode on the screen Printed silver grid line; Fold the electrode and diaphragm processed in the previous step together in a sandwich shape; Package the folded electrode and diaphragm aluminum-plastic film, leaving an opening; Inject electrolyte from the opening; Close the opening, Finalize the shape and make a new type of supercapacitor after standing still.

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Abstract

The invention discloses a novel super capacitor and a manufacturing method thereof. The novel super capacitor is composed of active self-supporting electrodes, membranes, conductive current collecting metal grid lines, electrolytic solutions, a packaging outer shell and lead-out electrode ends, wherein the active self-supporting electrodes are printed with the conductive current collecting metal grid lines, the conductive current collecting metal grid lines electrically make good contact with the active self-supporting electrodes and are used for collecting and feeding active self-supporting electrode currents into the electrode ends, and the membranes are located between every two electrodes to separate the two electrodes. The manufacturing method comprises the steps of metal grid line printing, the lead-out electrode end connecting, membrane laminating layer placing, pre-packaging, infusing, packaging and standing. The brand new design and manufacturing scheme are adopted in the novel super capacitor, the novel super capacitor is light in weight, large in specific volume and simple in manufacturing technology.

Description

technical field [0001] The present invention relates to an energy storage device and a preparation method thereof, in particular to a novel supercapacitor and a preparation method thereof. Background technique [0002] Supercapacitor is a new type of energy storage device, which has the advantages of extremely short charging time, long service life, and high power density, so it can be widely used in new energy electric vehicles, hybrid electric vehicles, electric train energy recovery and train starting, and In the military, it is used as the starting power supply of tanks and armored vehicles and the pulse power supply of large laser weapons. [0003] The preparation of supercapacitors usually adopts a method similar to that of lithium-ion batteries. Powdery active materials, conductive additives, binders, and solvents are mixed evenly to form a slurry, which is applied to the metal current collector, dried to obtain electrodes, and then mixed with The diaphragm is made i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/28H01G11/26H01G11/22H01G11/86
CPCY02E60/13
Inventor 肖辉刘铸孙力
Owner KUNMING NATAI TECH CO LTD