A negative plate lead paste for high-performance start-stop lead-carbon super battery and preparation method thereof

A negative plate, high-performance technology, applied in the negative plate lead paste of high-performance start-stop lead-carbon super battery and its preparation field, can solve the problems of serious hydrogen evolution reaction, uneven lead-carbon material and paste, etc., and achieve the suppression of hydrogen evolution process , Improve stability, improve conductivity and capacitive activity

Active Publication Date: 2020-07-28
ZHEJIANG TIANNENG BATTERY JIANGSU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve a series of problems such as uneven lead-carbon material and paste caused by the addition of carbon material on the negative plate of the lead-carbon battery, serious hydrogen evolution reaction, etc., the technical problem to be solved by the present invention is to provide a high-performance start-stop lead-carbon super battery Negative plate lead paste and preparation method thereof

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Weigh 4 parts of graphene and 0.8 parts of dispersant aniline oligomer derivatives, stir and dissolve the dispersant in deionized water to form a clear and transparent dispersant solution, then slowly add graphene powder, and form a concentration after 1 hour of strong ultrasound It is a graphene dispersion of 1 mg / ml; 100 parts of lead powder and 0.5 parts of hydrogen evolution inhibitor nano-zinc oxide are added to the above graphene dispersion, and ball milled for 6 hours to mix evenly to form a lead-carbon composite material containing hydrogen evolution inhibitor; Dissolve 1 part of the binder xanthan gum in 15 parts of water to make a binder aqueous solution, then add the above prepared lead-carbon composite material, 0.1 part of polyester fiber, 2 parts of humic acid, and 0.4 parts of nano-barium sulfate and 0.2 parts of lignin, mechanically stirred for 30-40 minutes and mixed uniformly to obtain a mixture; then added 6 parts of sulfuric acid solution, continued t...

Embodiment 2

[0030] Weigh 6 parts of graphene and 2.5 parts of dispersant aniline oligomer derivatives, stir and dissolve the dispersant in deionized water to form a clear and transparent dispersant solution, then slowly add graphene powder, and form a concentration after 1 hour of strong ultrasound 4mg / ml graphene dispersion; 100 parts of lead powder and 0.8 parts of hydrogen evolution inhibitor nano-bismuth oxide were added to the above graphene dispersion, and ball milled for 6 hours to mix evenly to form a lead-carbon composite material containing hydrogen evolution inhibitor; Dissolve 1.2 parts of the binder sodium alginate in 18 parts of water to make a binder aqueous solution, and then add the above prepared lead-carbon composite material, 1.5 parts of humic acid, 0.5 parts of nano barium sulfate and 0.3 parts of lignin , and mechanically stirred for 30-40 minutes to mix evenly to obtain a mixture; then add 5 parts of sulfuric acid solution, continue to stir for 10-20 minutes to mix ...

Embodiment 3

[0033] Weigh 8 parts of graphene and 4 parts of dispersant aniline oligomer derivatives, stir and dissolve the dispersant in deionized water to form a clear and transparent dispersant solution, then slowly add graphene powder, and form a concentration after 1 hour of strong ultrasonication 5mg / ml graphene dispersion; 100 parts of lead powder and 0.4 parts of hydrogen evolution inhibitor nano-zinc oxide were added to the above graphene dispersion, and ball milled for 6 hours to mix evenly to form a lead-carbon composite material containing hydrogen evolution inhibitor; Dissolve 0.5 parts of the binder xanthan gum in 12 parts of water to make an aqueous solution of the binder, then add the above prepared lead-carbon composite material, 2 parts of humic acid, 0.4 parts of nano barium sulfate and 0.2 parts of lignin , mechanically stirred for 30-40 minutes to mix evenly to obtain a mixture; then add 8 parts of sulfuric acid solution, continue to stir for 10-20 minutes to mix evenly...

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Abstract

The invention belongs to the technical field of lead-acid batteries, in particular to a negative plate lead paste used for starting and stopping lead-carbon super batteries with high performance and apreparation method thereof. The carbon material used in the negative plate lead paste prepared by the invention is graphene, the homogeneous dispersion of graphene, lead powder and hydrogen evolutioninhibitor in lead paste is achieved by using aniline oligomer derivative as graphene dispersant and ball milling process. The graphene agglomeration is avoided, and a good lead-carbon composite structure is established, and the hydrogen evolution reaction of lead-carbon negative electrode is inhibited. The negative plate lead paste prepared by the invention adds xanthan gum or sodium alginate tocompletely or partially replace the traditional polyester fiber as a binder, so that the emulsifying stability, adhesion and adhesion of the negative electrode lead paste are effectively improved, andthe problems of serious water loss and easy shedding of active materials in the cycle process of lead-carbon batteries are solved, and the charging acceptance and cycle life of the lead-carbon batteries are remarkably improved.

Description

technical field [0001] The invention belongs to the technical field of lead-acid batteries, and in particular relates to a negative plate lead paste for high-performance start-stop lead-carbon super batteries and a preparation method thereof. Background technique [0002] Hybrid batteries are a huge market for the battery industry. Lead-acid batteries have the characteristics of low cost and high safety, and have attracted extensive attention from the hybrid power industry. However, hybrid vehicles are often used in a high-rate partial charge state, resulting in irreversible sulfation of the negative electrode, thereby reducing battery life. The emergence of lead-carbon (Pb-C) super batteries allows lead-acid battery technology to be applied to hybrid electric vehicles and has become an ideal energy storage device. [0003] Lead-carbon battery is a new type of energy storage device that combines supercapacitors and lead-acid batteries. The lead-acid battery is used as the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/36H01M4/62H01M4/57H01M4/04H01M4/20H01M10/06
CPCH01M4/04H01M4/20H01M4/36H01M4/57H01M4/62H01M4/621H01M4/625H01M4/628H01M10/06Y02E60/10
Inventor 陈达王殿龙李军胡国柱孙旺李明钧
Owner ZHEJIANG TIANNENG BATTERY JIANGSU
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