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Method for arranging bar code type capacitive electrode plate in electrode of alkaline cell as well as mixed negative electrode

A technology of alkaline battery and battery negative electrode, applied in the direction of alkaline battery electrode, capacitor electrode, hybrid battery, etc., can solve the problems of obtaining the best process conditions, long life of the pole piece, low internal resistance and high strength, etc.

Active Publication Date: 2014-03-12
浙江霖润新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the "capacitor battery" based on lithium ions, although the film rolling step has been implemented, it is difficult for the capacitor material and the battery material to obtain the best process conditions under the same film rolling pressure, and its technical defects lead to long life of the pole piece, low Properties such as internal resistance and high strength cannot be obtained

Method used

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  • Method for arranging bar code type capacitive electrode plate in electrode of alkaline cell as well as mixed negative electrode
  • Method for arranging bar code type capacitive electrode plate in electrode of alkaline cell as well as mixed negative electrode
  • Method for arranging bar code type capacitive electrode plate in electrode of alkaline cell as well as mixed negative electrode

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] The first step, material selection and preparation:

[0071] (1) Negative electrode current collector: as the current collector of the strip-shaped capacitor pole piece and as the current collector of the strip-shaped battery negative pole piece, the foamed nickel commodity in the battery material is selected, and the foamed nickel used as the capacitor pole piece current collector The thickness, ratio The nickel foam used for the negative electrode collector of the strip battery is 0.2mm thicker;

[0072] (2) Scratch paint for strip-shaped capacitor pole piece: 600 mesh activated carbon powder, 600 mesh graphite powder and polytetrafluoro emulsion with a solid content of 52 wt%. The three are mixed according to the ratio of 90wt%, 7wt% and 3wt% for later use; the sum of the three weight percentages constitutes 100wt%;

[0073] (3) Strip battery negative plate scraping coating: 250 mesh-300 mesh AB 5Type hydrogen storage alloy powder, the method to obtain alloy powder...

Embodiment 2

[0094] The difference with embodiment 1 is:

[0095] ① The proportional relationship between the width of the negative plate of the strip battery and the width of the strip capacitor is 1:1.

[0096] ②The density is 1.31g / cm 3 Potassium hydroxide-sodium hydroxide-lithium hydroxide ternary lye is used as the battery electrolyte and 2.2ml is added to the AA-type cylindrical battery;

[0097] All the other steps and conditions are the same as in Example 1.

Embodiment 3

[0099] The difference with embodiment 1 is:

[0100] ① The proportional relationship between the width of the negative plate of the strip battery and the width of the strip capacitor is 1.5 to 1;

[0101] ②The number of solder joints in the splicing area satisfies 3+X, and the value of X in the design specification is determined to be 1;

[0102] ③The density is 1.31g / cm 3 Potassium hydroxide-sodium hydroxide-lithium hydroxide ternary lye is used as the battery electrolyte and 2.5ml is added to the AA-type cylindrical battery;

[0103] All the other steps and conditions are the same as in Example 1.

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Abstract

The invention relates to a method for arranging a bar code type capacitive electrode plate in an electrode of an alkaline cell as well as a mixed negative electrode. The alkaline cell is a nickel-hydrogen cell. The negative electrode of the alkaline cell contains the traditional negative electrode plate which uses foam nickel as a current collector for bearing hydrogen storage alloy powder in a negative electrode of a metal hydride-nickel cell, and is spliced with a capacitive electrode plate mainly containing activated carbon. Scrapping coating of the capacitive electrode plate comprises 90 wt% of activated carbon, 7 wt% of graphite powder and 3 wt% of polyfluo-emulsion. The capacitive electrode plate and the cell electrode plate are respectively subjected to film rolling and then are welded together, so as to construct design and process of a bar code type mixed electrode piece in which the capacitive electrode plate and the cell electrode plate coexist. Therefore, optimal process preparation conditions of the capacitive electrode plate and the cell capacitive electrode plate are easy to obtain. Furthermore, the balance optimization requirements of energy density and power density of the 'capacitive cell' can be met.

Description

technical field [0001] The invention relates to a method for building a barcode-type capacitor pole piece in an alkaline battery negative pole and a mixed negative pole. Background technique [0002] Capacitor (capacity), as an electrical energy storage device, has high power density but low energy density. A battery (galvanic element cell, cell, battery, galvanic pile), as a chemical energy storage device, or a conversion device that converts chemical energy into electrical energy, has a high energy density but a low power density. [0003] Combining capacitors and batteries, complementing each other's strengths and complementing each other's strengths and energy densities, has been a dream of human beings for a hundred years; it is also a hundred years since human beings connected a capacitor in parallel to the outside of the battery to achieve "double harvesting" of power and energy density. One of the measures that has been adopted (as the application number disclosed b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M12/00H01M4/24H01M4/26H01G9/04
CPCY02E60/124Y02E60/128Y02E60/10
Inventor 王夺吴耀明王立民李晓忠程勇唐琛明杨玉勋石志水高松董相廷
Owner 浙江霖润新能源科技有限公司
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