Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Lead-carbon battery negative pole preparation method based on ZIF-8 zeoliteimidazate framework porous carbon nanomaterial

A zeolite imidazolate and nanomaterial technology, applied in lead-acid battery electrodes, battery electrodes, circuits, etc., to achieve the effects of high specific surface area, inhibition of irreversible sulfation, and good physical properties

Active Publication Date: 2016-12-14
BEIJING UNIV OF TECH
View PDF4 Cites 41 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the mechanism of action of carbon materials in lead-carbon batteries is different from the energy storage mechanism in supercapacitors, in order to obtain high-performance lead-carbon batteries, it is necessary to start with carbon materials to solve the problem of irreversible sulfation of the negative electrode and the hydrogen evolution of the negative electrode. And lead to battery failure, improve battery cycle life and high rate charge and discharge performance

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
  • Lead-carbon battery negative pole preparation method based on ZIF-8 zeoliteimidazate framework porous carbon nanomaterial
  • Lead-carbon battery negative pole preparation method based on ZIF-8 zeoliteimidazate framework porous carbon nanomaterial
  • Lead-carbon battery negative pole preparation method based on ZIF-8 zeoliteimidazate framework porous carbon nanomaterial

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A preparation method of a lead-carbon battery negative electrode based on a ZIF-8 zeolite imidazolate framework porous carbon nanomaterial, comprising the following steps:

[0032] (1) Under the condition of magnetic stirring, 7.71g metal nitrate Zn(NO 3 ) 2 ·6H 2 O was dissolved in 750ml of anhydrous methanol to form a colorless and clear solution A; 9.84g of organic ligand 2-methylimidazole was dissolved in the above solution to form a clear solution B, and the clear solution B continued to be magnetically stirred until it became turbid to form an emulsion. The prepared emulsion was aged for 24 h, centrifuged at 7000 rad / min and washed 3 times to obtain a white paste. The prepared white paste was dried for 8 hours in a blast dryer at 60°C, and dried in a vacuum oven at 105°C for 5 hours to obtain a ZIF-8 zeolite imidazolate skeleton, whose XRD pattern is as follows: figure 1 shown;

[0033] (2) Grind the dried ZIF-8 material in an agate mortar for 30 min, and keep...

Embodiment 2

[0039] A preparation method of a lead-carbon battery negative electrode based on a ZIF-8 zeolite imidazolate framework porous carbon nanomaterial, comprising the following steps:

[0040] (1) Under the condition of magnetic stirring, 7.71g metal nitrate Zn(NO 3 ) 2 ·6H 2 O was dissolved in 750ml of anhydrous methanol to form a colorless and clear solution A; 9.84g of organic ligand 2-methylimidazole was dissolved in the above solution to form a clear solution B, and the clear solution B continued to be magnetically stirred until it became turbid to form an emulsion. The prepared emulsion was aged for 24 h, centrifuged at 6000 rad / min and washed 3 times to obtain a white paste. The prepared white paste was dried in a blast dryer at 60°C for 10 hours, and dried in a vacuum oven at 100°C for 5 hours to obtain a ZIF-8 zeolite imidazolate skeleton;

[0041] (2) Grind the dried ZIF-8 material in an agate mortar for 30 min, and keep it in a tube furnace with a nitrogen atmosphere ...

Embodiment 3

[0047] A preparation method of a lead-carbon battery negative electrode based on a ZIF-8 zeolite imidazolate framework porous carbon nanomaterial, comprising the following steps:

[0048] (1) Under the condition of magnetic stirring, 7.71g metal nitrate Zn(NO 3 ) 2 ·6H 2 O was dissolved in 750ml of anhydrous methanol to form a colorless and clear solution A; 9.84g of organic ligand 2-methylimidazole was dissolved in the above solution to form a clear solution B, and the clear solution B continued to be magnetically stirred until it became turbid to form an emulsion. The prepared emulsion was aged for 24 h, centrifuged at 7000 rad / min and washed twice to obtain a white paste. The prepared white paste was dried in a blast dryer at 60°C for 9 hours, and dried in a vacuum oven at 105°C for 5 hours to obtain a ZIF-8 zeolite imidazolate skeleton;

[0049] (2) Grind the dried ZIF-8 material in an agate mortar for 30 min, and keep it in a tube furnace with a nitrogen atmosphere at ...

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 provides a lead-carbon battery negative pole preparation method based on a ZIF-8 zeoliteimidazate framework porous carbon nanomaterial and belongs to the technical field of lead-carbon battery negative polematerials. The ZIF-8 zeoliteimidazate framework porous carbon nanomaterial is a porous carbon material prepared by conducting annealing on a metal organic framework material synthesized by using zinc as metal ions and using 2-methyl imidazole as an organic ligand under protective atmosphere. Lead and the ZIF-8 zeoliteimidazate framework porous carbon nanomaterial are grinded and mixed in a ball mill. A lead-carbon battery can effectively inhibit irreversible sulfation occurred on a negative pole plate during charging and discharging and has superior high rate capability and excellent cycle performance. A negative pole can be used for large commercial energy storage lead-carbon batteries.

Description

technical field [0001] The invention relates to a preparation method of a lead-carbon battery negative electrode based on a ZIF-8 zeolite imidazolate framework porous carbon nanomaterial, and belongs to the technical field of lead-carbon battery negative electrodes. technical background [0002] The lead-carbon battery is a new type of energy storage device formed by combining the "battery" of the lead-acid battery and the "capacitance" of the supercapacitor. Compared with traditional lead-acid batteries, it can effectively inhibit the sulfation of the negative electrode, especially under high-rate partial charge state (HRPSoC) conditions, and its service life can reach 3 to 10 times that of traditional lead-acid batteries. The power density is increased by 20% to 50%, achieving a breakthrough in high rate charge and discharge and high cycle life. The key to lead-carbon battery technology is to apply capacitive carbon materials (such as activated carbon, carbon black, graph...

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): H01M4/36H01M4/57H01M4/62H01M4/14H01M4/20
CPCH01M4/14H01M4/20H01M4/364H01M4/57H01M4/628Y02E60/10
Inventor 汪浩徐小龙严辉刘晶冰
Owner BEIJING UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com