A negative plate lead paste used for starting and stopping lead-carbon super batteries with high performance and a preparation method thereof

A super battery and negative plate technology, applied in lead-acid battery electrodes, electrode manufacturing, battery electrodes, etc., can solve the problems of serious hydrogen evolution reaction, uneven lead-carbon materials and pastes, etc., to suppress the hydrogen evolution process, improve stability, The effect of improving conductivity and capacitive activity

Active Publication Date: 2018-12-28
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 evolut

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0026] Example 1:

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

Example Embodiment

[0029] Example 2:

[0030] Weigh 6 parts of graphene and 2.5 parts of dispersant aniline oligomer derivative, stir and dissolve the dispersant in deionized water to form a clear and transparent dispersant solution, then slowly add graphene powder, and vigorously ultrasonicate for 1 hour to form a concentration 4 mg / ml graphene dispersion; add 100 parts of lead powder and 0.8 parts of hydrogen evolution inhibitor nano bismuth oxide to the above graphene dispersion, ball mill for 6 hours and mix uniformly to form a lead-carbon composite material containing hydrogen evolution inhibitor ; Dissolve 1.2 parts of binder sodium alginate in 18 parts of water to form a binder aqueous solution, and then add the lead-carbon composite material, 1.5 parts of humic acid, 0.5 parts of nano barium sulfate and 0.3 parts of wood Then, add 5 parts of sulfuric acid solution and continue to mix for 10-20 minutes to make a lead paste. Use trace deionized water to fine-tune the apparent density of the ...

Example Embodiment

[0032] Example 3:

[0033] Weigh 8 parts of graphene and 4 parts of dispersant aniline oligomer derivative, stir and dissolve the dispersant in deionized water to form a clear and transparent dispersant solution, then slowly add graphene powder, and vigorously ultrasonicate for 1 hour to form a concentration It is a graphene dispersion of 5 mg / ml; 100 parts of lead powder and 0.4 parts of hydrogen evolution inhibitor nano zinc oxide are added to the above graphene dispersion, ball milled for 6 hours and mixed uniformly to form a lead-carbon composite material containing hydrogen evolution inhibitor ; Dissolve 0.5 parts of binder xanthan gum in 12 parts of water to form a binder aqueous solution, and then add the lead-carbon composite material, 2 parts of humic acid, 0.4 parts of nano barium sulfate and 0.2 parts of wood Then, add 8 parts of sulfuric acid solution and continue to mix for 10-20 minutes to make a lead paste. Use trace deionized water to fine-tune the apparent densi...

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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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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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