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A kind of battery capacitor separator and preparation method thereof

A capacitor and separator technology, applied in the field of batteries, capacitor separators and their preparation, can solve the problems of difficulty in controlling the pore size and porosity of battery supercapacitor separators, inability to achieve single-sided roughening of the separator, and difficulty in controlling the sizing process, etc. Soft, strong and tough

Inactive Publication Date: 2018-02-23
王温珏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The purpose of the present invention is to overcome the difficulty in controlling the pore size and porosity of the battery supercapacitor diaphragm in the existing technology and technology, the low electrolyte retention rate, the high resistance of proton passage, the difficulty in controlling the sizing process, and the inability to realize single-sided coarsening of the diaphragm, etc. Disadvantages, provide a battery capacitor separator with high liquid retention rate, good air permeability, high physical properties, low internal resistance, more advanced production process and technology and its preparation method

Method used

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  • A kind of battery capacitor separator and preparation method thereof
  • A kind of battery capacitor separator and preparation method thereof

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Effect test

Embodiment 1

[0041] A kind of battery, capacitor diaphragm, according to diaphragm finished product weight 1000Kg, the various raw material weights in the preparation raw material are as follows:

[0042]Sulfite wood pulp 650Kg, SAF super absorbent fiber 200Kg, attapulgite powder 100Kg, chitosan 5Kg, hydrogen storage material ZnO 2 15Kg, the synthetic fiber is a mixture of polypropylene fiber and polyvinyl alcohol fiber, of which 15Kg is polypropylene fiber and 15Kg is polyvinyl alcohol fiber.

[0043] The preparation method of above-mentioned a kind of battery, capacitor separator, the steps are:

[0044] (1) Plant fiber pulping: beat and disperse sulfite wood pulp and water with a beater at a concentration of 10%, to obtain plant fiber slurry, and set aside;

[0045] ⑵Inorganic powder dispersion: mix attapulgite mineral powder, chitosan and water into a 10% concentration suspension to prepare an inorganic powder suspension for later use;

[0046] (3) Superabsorbent fiber dispersion: t...

Embodiment 2

[0054] A kind of battery, capacitor diaphragm, according to diaphragm finished product weight 1000Kg, the various raw material weights in the preparation raw material are as follows:

[0055] Sulfite wood pulp 700Kg, SAF super absorbent fiber 150Kg, attapulgite powder 100Kg, chitosan 10Kg, hydrogen storage material ZnO 2 10Kg, the synthetic fiber is a mixture of polypropylene fiber and polyvinyl alcohol fiber, of which 15Kg is polypropylene fiber and 15Kg is polyvinyl alcohol fiber.

[0056] The preparation method of above-mentioned a kind of battery, capacitor separator, the steps are:

[0057] (1) Plant fiber pulping: beat and disperse the sulfite wood pulp and water with a beater at a concentration of 12%, to obtain a plant fiber slurry for subsequent use;

[0058] ⑵Inorganic powder dispersion: mix attapulgite mineral powder, chitosan and water to form a 12% concentration suspension to obtain an inorganic powder suspension for later use;

[0059] (3) Superabsorbent fiber...

Embodiment 3

[0067] A kind of battery, capacitor diaphragm, according to diaphragm finished product weight 1000Kg, the various raw material weights in the preparation raw material are as follows:

[0068] Sulfite wood pulp 750Kg, SAF super absorbent fiber 100Kg, attapulgite powder 100Kg, chitosan 8Kg, hydrogen storage material ZnO 2 12Kg, the synthetic fiber is a mixture of polypropylene fiber and polyvinyl alcohol fiber, of which 15Kg is polypropylene fiber and 15Kg is polyvinyl alcohol fiber.

[0069] The preparation method of above-mentioned a kind of battery, capacitor separator, the steps are:

[0070] (1) Plant fiber pulping: beat and disperse the sulfite wood pulp and water with a beater at a concentration of 15%, to obtain a plant fiber slurry for subsequent use;

[0071] ⑵ Inorganic powder dispersion: mix attapulgite mineral powder, chitosan and water to form a 15% concentration suspension to obtain an inorganic powder suspension for later use;

[0072] (3) Superabsorbent fiber...

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Abstract

The invention relates to a battery and capacitor diaphragm and a preparation method thereof. According to the percentage by weight of various raw materials in the finished diaphragm in the preparation raw materials, sulfite wood pulp is 65% to 75%, SAF superabsorbent fiber is 10% to 20%, Attapulgite powder is 5% to 30%, chitosan is 0.3 to 0.8%, synthetic fiber is 3%, hydrogen storage material ZnO2 is 1.2% to 1.7%; its preparation method is: pulping by plant fiber, inorganic powder Dispersion, superabsorbent fiber dispersion, mixed pulping, wet forming, extrusion dehydration, heating dehydration, single-sided roughening, winding and slitting, etc., to produce finished products, which overcomes the existing process and technology of battery supercapacitor diaphragm The pore size and porosity are difficult to control, the electrolyte retention rate is low, the proton passage resistance is large, the sizing process is difficult to control, and the single-sided coarsening of the diaphragm cannot be realized. It provides a high liquid retention rate, good air permeability, and high physical properties. A battery capacitor diaphragm with low internal resistance and more advanced technology and technology and a preparation method thereof.

Description

technical field [0001] The invention belongs to the technical fields of wet papermaking and electrochemistry, and relates to a battery, a capacitor diaphragm and a preparation method thereof. Background technique [0002] Batteries and supercapacitor diaphragms are one of the four core technologies of batteries and supercapacitors, and their value accounts for as much as 20-30%. More and more attention is paid to the production of high-quality batteries and supercapacitor diaphragms. At present, batteries and supercapacitor diaphragms are usually made of chemical fibers and produced by wet-laid non-woven fabric production technology. Compared with traditional papermaking, there are many special processes in the production of wet-laid non-woven fabrics. [0003] High-quality separator paper for batteries and supercapacitors is mostly made of 100% low-melting fiber paper, such as PP and PE. In order to meet the special hydrophilic requirements of battery separator paper, it...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M2/14H01M2/16H01G11/52H01G11/84H01M50/403H01M50/446
CPCH01G11/52H01G11/84H01M50/4295H01M50/44H01M50/411H01M50/403Y02E60/13Y02E60/10
Inventor 王温珏丛静
Owner 王温珏
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