Battery, capacitor diaphragm and preparation method of battery and capacitor diaphragm

A technology for capacitors and diaphragms, which is applied in the field of capacitor diaphragms and their preparation, and batteries. It can solve the problems of difficulty in controlling the pore size and porosity of supercapacitor diaphragms, the inability to achieve single-sided coarsening of the diaphragm, and the difficulty in controlling the sizing process. Soft, strong and tough

Inactive Publication Date: 2016-08-17
王温珏
View PDF3 Cites 13 Cited by
  • 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 pr

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Battery, capacitor diaphragm and preparation method of battery and capacitor diaphragm
  • Battery, capacitor diaphragm and preparation method of battery and capacitor diaphragm

Examples

Experimental program
Comparison scheme
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 15 Kg, 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] Plant fiber pulping: beat and disperse sulfite wood pulp and water with a beater at a concentration of 10% to obtain plant fiber slurry for later use;

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

[0046] (3) Superabsorbent fiber dispersion: the inorganic...

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

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

[0059] (3) Superabsorbent fiber dispersion: the...

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

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

[0072] (3) Superabsorbent fiber dispersion: the ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Diameteraaaaaaaaaa
Login to view more

Abstract

The invention relates to a battery, a capacitor diaphragm and a preparation method of the battery and the capacitor diaphragm. The diaphragm is prepared from, by weight, 65% to 75% of sulfite wood pulp, 10% to 20% of superabsorbent fibers (SAF), 5% to 30% of attapulgite mineral powder, 0.3% to 0.8% of chitosan, 3% of synthetic fibers and 1.2% to 1.7% of hydrogen storage material ZnO2. The preparation method of the battery and the capacitor diaphragm comprises the step that the finished product is prepared through the steps of plant fiber pulping, inorganic powder dispersing, superabsorbent fiber dispersing, mixed pulping, wet forming, extruding dehydration, heating dehydration, single-face coarsening, rolling and splitting and the like. The defects that in the existing process and technology, the aperture and porosity of a super capacitor diaphragm of a battery are hard to control, the electrolyte retention rate is low, proton passing resistance is large, the gluing process is hard to control, and single-face coarsening of the diaphragm cannot be achieved are overcome, and according to the battery, the capacitor diaphragm and the preparation method of the battery and the capacitor diaphragm, the liquid retention rate is high, gas permeability is good, the physical property is high, internal resistance is low, and the process and technology are more advanced.

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap