Supercharge Your Innovation With Domain-Expert AI Agents!

A kind of preparation method of positive plate of bromide capacitor

A technology of capacitors and bromides, which is applied in the field of capacitors, can solve the problems of large self-discharge and low energy storage of supercapacitors, and achieve the effects of fast charge and discharge, high specific energy, and extended cycle life

Active Publication Date: 2020-09-29
HENGDIAN GRP DMEGC MAGNETICS CO LTD
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the self-discharge of supercapacitors is large and the energy stored is less, so it is necessary to develop supercapacitors with high specific energy and high power.

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
  • A kind of preparation method of positive plate of bromide capacitor
  • A kind of preparation method of positive plate of bromide capacitor
  • A kind of preparation method of positive plate of bromide capacitor

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0122] (1) take bromide and put into airtight heating container, pass into inert gas; Wherein the preparation method of bromide comprises the following steps:

[0123] (a) get bromine simple substance and organic salt respectively, control the mol ratio of bromine simple substance and organic salt to be (1-4): 1, first organic salt is put into airtight container, pass into inert gas in described airtight container, so The inert gas is preferably nitrogen and / or argon;

[0124] (b) Add bromine elemental substance in airtight container, control whole process to be 1-60min, cool while stirring while dropping, temperature is controlled within 50 ℃;

[0125](c) After the dropwise addition of bromine is completed, cool to room temperature to obtain the bromide;

[0126] (2) adding solvent and high specific surface area activated carbon to the bromide, and ball milling for 12-240min to obtain slurry A;

[0127] (3) Add conductive agent to slurry A, and ball mill for 60-120min to ob...

Embodiment 1

[0134] The capacitor positive electrode slurry consists of the following components in parts by weight:

[0135] Tetrabutylammonium tribromide 15g, high specific surface area activated carbon (specific surface area is 3500m 2 / g, iodine value is 1800mg / g, moisture<0.1, ash content<1, particle size (D80) is 15-20μm, bulk specific gravity is 0.4g / ml, pH value is 7, iron impurity content<10ppm) 30g, graphite powder 10g, polyvinylidene fluoride (PVDF) 5g and N-methylpyrrolidone 40g.

[0136] Production of capacitor positive plate:

[0137] (1) take tetrabutylammonium tribromide and put into airtight container, wherein the preparation method of tetrabutylammonium tribromide comprises the following steps:

[0138] (a) get bromine simple substance and tetrabutylammonium bromide respectively, control the mol ratio of bromine simple substance and tetrabutylammonium bromide to be 1:1, tetrabutylammonium bromide is put into airtight container earlier, described airtight The container ...

Embodiment 2

[0149] Compared with Example 1, in the preparation method of bromide, raw material organic salt is N-ethyl-N-butylmorpholine bromide, and bromide is N-ethyl-N-butylmorpholine tribromide , others are identical with embodiment 1.

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

No PUM Login to View More

Abstract

The invention relates to a bromide capacitor positive electrode sheet and a preparation method thereof. The bromide capacitor positive electrode sheet contains a current collector and a capacitor positive electrode slurry coated on the current collector; the capacitor positive electrode slurry is composed of bromide, high specific Surface area activated carbon, conductive agent, binder and solvent; among them, bromide is obtained by reacting bromine simple substance with organic salt. The present invention adopts the bromide produced by the reaction of bromine simple substance and organic salt in the positive electrode sheet of the capacitor as the positive electrode active material, so that the prepared capacitor has a higher specific energy, can realize rapid charge and discharge, and has a long cycle life, and Raw material cost is low.

Description

technical field [0001] The invention relates to the field of capacitors, in particular to a method for preparing a positive plate of a capacitor, in particular to a method for preparing a positive plate of a bromide capacitor. Background technique [0002] With the rapid development of society, traditional energy sources are increasingly in short supply, and people need more efficient and environmentally friendly energy sources to replace or supplement traditional energy sources. Supercapacitors, as a new type of energy storage components, have attracted much attention from various countries. Supercapacitors can be charged and discharged quickly and have a long cycle life, so they can be widely used in various electric vehicles, electric tools, energy recovery, energy storage systems, etc. However, the self-discharge of supercapacitors is large and the energy stored is less, so it is necessary to develop supercapacitors with high specific energy and high power. Hybrid batte...

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
Patent Type & Authority Patents(China)
IPC IPC(8): H01G11/30H01G11/38H01G11/86
CPCH01G11/30H01G11/38H01G11/86Y02E60/13
Inventor 唐怀远王康彦谢成璐金源
Owner HENGDIAN GRP DMEGC MAGNETICS CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com