Nonwoven fabric anti-tear and antibacterial capacitor composite separator material

Abstract

The invention discloses nonwoven fabric anti-tear and antibacterial capacitor composite separator material which is prepared by the raw material of the following parts by weight: 35-40 parts of polyvinyl alcohol fiber, 33-35 parts of mekralon, 10-13 parts of polyacrylonitrile powder, 30-32 parts of acetone, 72-75 parts of N,N-dimethyl formamide, 8-10 parts of water soluble PVA fiber of 70 DEG C, 5-6 parts of ptfe emulsion, 4-5 parts of bamboo charcoal fiber, 1-1.3 parts of chitosan, 8-9 parts of clay, a moderate amount of hydrochloric acid solution of which the concentration is 5wt%, 2-3 parts of ammonium dihydrogen phosphate, 5-6 parts of nanometer zinc oxide, 2-2.5 parts of microcrystalline wax and 2-3 parts of shell-lac. The bamboo charcoal fiber, the nanometer zinc oxide and the chitosan are added in preparation of the product through a series of technique means so that toughness and strength of the product can be enhanced, the product also has natural antibacterial property and prevents deterioration and corruption of the separator material and thus the service life can be prolonged.

Description

technical field [0001] The invention relates to the technical field of capacitor diaphragms, in particular to a composite diaphragm material for a non-woven tear-resistant and antibacterial capacitor. Background technique [0002] Supercapacitor is a highly competitive energy storage device. Because it can realize fast charging, high current discharge, and has a charging life of more than 100,000 times, it plays an important role in some applications that require short-term high-rate discharge. . The power supply requirements of hybrid electric vehicles and electric vehicles have also aroused worldwide attention to supercapacitors, a new type of energy storage device. In the composition of supercapacitors, electrodes, electrolyte and separator paper play a decisive role in the performance of supercapacitors. At present, the electrodes and electrolytes of supercapacitors are research hotspots, but the research and attention on separators is not high. [0003] The separator...

AI Technical Summary

Problems solved by technology

[0004] At present, the materials used for supercapacitor separators mainly include cellulose separator paper and traditional battery separators. High-performance separator paper is difficult to manufacture and expensive; The manufacturing technology of spun nanofiber membrane is simple, low cost, the porosity of the diaphragm is as high as 90%, and the affinity to the electrolyte is good, but the disadvantage is that the strength is not high