Lead paste for battery of electric vehicle, and use method thereof

An electric vehicle battery, lead paste technology, applied in battery electrodes, circuits, electrical components and other directions, can solve the problems of long plate curing time, high impurity content, short negative plate life, etc. Easy to mix evenly, reducing the effect of dust flying

Active Publication Date: 2014-04-09
HENAN CHAOWEI POWER SUPPLY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0031] In view of the above problems, the purpose of the present invention is to provide an electric vehicle battery lead paste and its use method, which solves the problems of expensive additives, environment

Method used

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  • Lead paste for battery of electric vehicle, and use method thereof
  • Lead paste for battery of electric vehicle, and use method thereof
  • Lead paste for battery of electric vehicle, and use method thereof

Examples

Experimental program
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Embodiment 1

[0072] It is composed of lead paste on the positive electrode and lead paste on the negative electrode. The lead paste on the positive electrode is made of: 1000kg of lead powder, 1.5kg of fiber, 5kg of sodium borate, 135kg of water and 70kg of sulfuric acid. The apparent density is 4.2 g / cm 3 The lead paste on the negative electrode is made of: 990kg lead powder, 0.9kg fiber, 2.5kg sodium borate, 3kg polyaspartic acid sodium salt, 2kg barium stearate, 115kg water and 70kg sulfuric acid. The apparent density is 4.1 g / cm 3 of lead paste.

Embodiment 2

[0074] It is composed of lead paste on the positive electrode and lead paste on the negative electrode. The lead paste on the positive electrode is made of: 990kg of lead powder, 1.2kg of fiber, 4kg of sodium borate, 125kg of water and 65kg of sulfuric acid. The apparent density is 4.0 g / cm 3 The lead paste on the negative electrode is made of: 1000kg lead powder, 1.2kg fiber, 3kg sodium borate, 4kg polyaspartic acid sodium salt, 3kg barium stearate, 125kg water and 75kg sulfuric acid. The apparent density is 4.3 g / cm 3 of lead paste.

Embodiment 3

[0076] It consists of lead paste on the positive electrode and lead paste on the negative electrode. The lead paste on the positive electrode is made of: 1010kg of lead powder, 1.8kg of fiber, 6kg of sodium borate, 145kg of water and 75kg of sulfuric acid. The apparent density is 4.4 g / cm 3 The lead paste on the negative electrode is made of: 1000kg lead powder, 1.2kg fiber, 3kg sodium borate, 4kg polyaspartic acid sodium salt, 3kg barium stearate, 125kg water and 75kg sulfuric acid. The apparent density is 4.3 g / cm 3 of lead paste.

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Abstract

The invention relates to lead paste, and particularly relates to lead paste for a battery of an electric vehicle, and a use method thereof. The lead paste is composed of the lead paste on a positive electrode and the lead paste on a negative electrode, wherein the lead paste on the positive electrode is composed of lead powder, fibers, sodium borate, water and sulfuric acid. The lead paste on the negative electrode is prepared by the lead powder, the fibers, sodium borate, sodium polyaspartate, barium stearate, water and sulfuric acid. An object of the invention is to provide the lead paste for the battery of the electric vehicle, and the use method thereof and solve the problems of high price of additives, environment pollutions, many species of the additives, high impurity content, high self discharge of the battery, long curing time of electrode plates, disability for discharging and short service life of a negative plate.

Description

technical field [0001] The invention relates to lead paste, in particular to electric vehicle battery lead paste and its application method. Background technique [0002] The current conventional electric vehicle battery lead paste is: [0003] 1. Conventional process operation: [0004] The first step: lead powder is added to the paste machine; [0005] Step 2: Add the dry material formula to the paste mixing machine, including red lead, fiber, graphite, antimony trioxide, acetylene black, stannous sulfate, barium sulfate, humic acid, lignin, etc., and stir with the lead paste for about 8 minutes ; [0006] Step 3: Quickly add water in about 2 minutes, then wet stir for 8 minutes, and stir at the same time during the addition process; [0007] Step 4: Slowly add acid for about 20 minutes, and the density of sulfuric acid is 1.40g / cm 3 During the addition process, stir at the same time. During the process, the temperature of the reaction between the lead paste and sulfu...

Claims

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Application Information

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IPC IPC(8): H01M4/57
CPCH01M4/57H01M4/62H01M4/628Y02E60/10
Inventor 李松林柴成雷
Owner HENAN CHAOWEI POWER SUPPLY
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