Boric acid glycerin polyester-doped aluminum eletrolytic capacitor electrolyte and preparation method thereof

A technology of aluminum electrolytic capacitors and boric acid glycerol, which is applied in the direction of liquid electrolytic capacitors, can solve the problems of reduced or even increased flash voltage, improved conductivity, and low conductivity.

Inactive Publication Date: 2018-03-09
江苏泗阳欣宏电子科技有限公司
View PDF8 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the existing electrical conductivity is too low and the electrical conductivity cannot be increased while the flashover voltage is not reduced or even increased, the present invention discloses an aluminum electrolytic capacitor with high electrical conductivity, that is, low impedanc

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
  • Boric acid glycerin polyester-doped aluminum eletrolytic capacitor electrolyte and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Borate-doped glycerol polyester aluminum electrolytic capacitor electrolyte is configured according to the following raw material mass percentages: ammonium sebacate 4%; ethylene glycol 72.5%; diethylene glycol 17%; dioctyl sebacate 3%; boric acid Glycerol polyester 1%; water 3%; mannitol 0.5%; ammonium hydrogen azelate 0.5%; binder 1.2%; ammonium pentaborate 0.8%. The preparation method is to heat ethylene glycol, water, boric acid glycerol polyester to 60°C and keep it warm for 0.5h; raise the temperature to 60°C and add diethylene glycol and ammonium hydrogen azelate; raise the temperature to 130°C within 2min and keep it warm for 1h, Ammonium sebacate, mannitol, binder, ammonium pentaborate, and dioctyl sebacate were added; cooled to 100° C. and kept for 1 hour, then cooled in air to normal temperature to obtain the electrolyte.

[0013] The electrolytic solution of the boric acid-doped glycerol polyester aluminum electrolytic capacitor prepared according to the abo...

Embodiment 2

[0015] Borate-doped glycerol polyester aluminum electrolytic capacitor electrolyte is configured according to the following raw material mass percentages: ammonium sebacate 5%; ethylene glycol 60.8%; diethylene glycol 20%; dioctyl sebacate 5%; boric acid Glycerol polyester 5%; water 2%; mannitol 0.3%; ammonium hydrogen azelate 0.4%; binder 1%; ammonium pentaborate 0.5%. The preparation method is to heat ethylene glycol, water and boric acid glycerol polyester to 60°C and keep it warm for 0.5h; raise the temperature to 70°C and add diethylene glycol and ammonium hydrogen azelate; raise the temperature to 130°C within 2min and keep it warm for 1h, Ammonium sebacate, mannitol, binder, ammonium pentaborate, and dioctyl sebacate were added; cooled to 104° C. and kept for 1 hour, then cooled to room temperature in air to obtain the electrolyte.

[0016] The electrolytic solution of the boric acid-doped glycerol polyester aluminum electrolytic capacitor prepared according to the abov...

Embodiment 3

[0018] Borate-doped glycerol polyester aluminum electrolytic capacitor electrolyte is configured according to the following raw material mass percentages: ammonium sebacate 6%; ethylene glycol 55%; diethylene glycol 24%; dioctyl sebacate 3%; boric acid Glycerol polyester 6%; water 3%; mannitol 0.5%; ammonium hydrogen azelate 0.5%; binder 1.2%; ammonium pentaborate 0.8%. The preparation method is to heat ethylene glycol, water, boric acid glycerol polyester to 60°C and keep it warm for 0.5h; raise the temperature to 65°C and add diethylene glycol and ammonium hydrogen azelate; raise the temperature to 130°C within 3min and keep it warm for 1h, Ammonium sebacate, mannitol, binder, ammonium pentaborate, and dioctyl sebacate were added; cooled to 95° C. and kept for 1 hour, then cooled to room temperature in air to obtain the electrolyte.

[0019] The electrolytic solution of the boric acid-doped glycerol polyester aluminum electrolytic capacitor prepared according to the above te...

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
Conductivityaaaaaaaaaa
Conductivityaaaaaaaaaa
Conductivityaaaaaaaaaa
Login to view more

Abstract

The invention discloses a boric acid glycerin polyester-doped aluminum eletrolytic capacitor electrolyte, which is prepared by the following raw materials, by mass percentage, 4% to 7% of ammonium sebacate, 50% to 75% of ethylene glycol, 17% to 24% of diethylene glycol, 1% to 5% of dioctyl sebacate, 1% to 10% of boric acid glycerin polyester, 2% to 3% of water, 0.2% to 0.5% of mannitol, 0.3% to 0.5% of ammonium hydrogen azelate, 0.8% to 1.2% of a binder, and 0.2% to 0.8% of ammonium pentaborate. The preparation method comprises the following steps: (1) the ethylene glycol, the water and the boric acid glycerin polyester are heated to 60 DEG C and the heat is preserved for 0.5 h; 2) the temperature rises to 60 DEG C to 85 DEG C, the diethylene glycol and the ammonium hydrogen azelate are added; 3) the temperature rises to 130 DEG C within a certain time and the heat is preserved for 1 h, and the ammonium sebacate, the mannitol, the binder, the ammonium pentaborate and the dioctyl sebacate are added; and 4) the temperature falls to 95 DEG C to 105 DEG C, the heat is preserved for 1 h, and cooling to a room temperature in the air is carried out to obtain the electrolyte. The electrolyte has high conductivity and high sparking voltage, the electrolyte can resist sparking voltage of 508.5 DEG C, and the conductivity reaches 3.1*10<-3>S/cm.

Description

technical field [0001] The invention relates to an electrolytic solution for an aluminum electrolytic capacitor, in particular to an electrolytic solution for an aluminum electrolytic capacitor doped with boric acid glycerol polyester and a preparation method thereof. Background technique [0002] The electrolyte is an important raw material for the manufacture of aluminum electrolytic capacitors, and the composition of the electrolyte directly determines the performance of the capacitor; at present, in various electronic devices, the aluminum electrolytic capacitors used have always emphasized the advantages of high voltage, wide temperature, and high temperature resistance, ignoring the conductivity Efficiency is a more important element; if the conductivity is too low, it is easy to cause ESR value, that is, the impedance is particularly high, which cannot meet the needs of existing capacitor products. Therefore, a capacitor with high conductivity, low impedance, high flas...

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): H01G9/145
CPCH01G9/145
Inventor 李成龙
Owner 江苏泗阳欣宏电子科技有限公司
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