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Lead-acid storage battery positive electrode plate for electric automobile

A technology for lead-acid batteries and electric vehicles. It is applied in the direction of lead-acid battery electrodes, battery electrodes, electrode carriers/collectors, etc. It can solve the problems of poor low-temperature performance, cadmium pollution, and short life, so as to improve low-temperature resistance and improve Self-conductivity and the effect of improving conductivity

Inactive Publication Date: 2013-01-30
SHUANGDENG GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing lead-acid batteries have fatal defects of poor low temperature performance and short life. Although the deep cycle performance of batteries containing cadmium plates is relatively good, cadmium pollution is also a problem. Therefore, a super lead-acid battery without cadmium plates is studied. very necessary

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Preparation of positive electrode active material and positive plate production: 100kg of lead powder, 6kg of basic lead sulfate, 0.7kg of ditin trioxide, 0.8kg of super conductive graphite, 0.8kg of polytetrafluoroethylene emulsion, 1.2 kg of conductive fiber, 20 kg of dilute sulfuric acid (density is 1.3 g / cm3), conductive fiber length is 3-5mm, appropriate amount of water, paste the above raw materials at 58°C; use ultra-calcium multi-element alloy grid, calculated by mass percentage, calcium content is 0.13% , the selenium content is 0.20%, the bismuth content is 0.05%, the tin content is 1.6%, and the rest is lead. Coat with a double-sided coater, and cure the coated plate at 78°C and a relative humidity of 95% to 100% for a period of not less than 48 hours. After curing, dry it at 62°C for 18 hours. The generated positive plate is put into the electrolytic solution for chemical formation, and a usable positive plate is obtained after chemical formation.

[0015] ...

Embodiment 2

[0018] Preparation of positive electrode active material and positive plate: 100 kg of lead powder, 10 kg of basic lead sulfate, 0.9 kg of ditin trioxide, 1.8 kg of super conductive graphite, 1.5 kg of polytetrafluoroethylene emulsion, 1.0 kg of conductive fiber, 16 kg of dilute sulfuric acid kg (density 1.3 g / cm3), the length of the conductive fiber is 3-5mm, and an appropriate amount of water, and the above raw materials are mixed at 55°C; the ultra-calcium multi-element alloy grid is used, the calcium content is 0.16%, and the selenium soil content The content of bismuth is 0.16%, the content of bismuth is 0.04%, the content of tin is 1.4%, and the rest is lead. Coat with a double-sided coater, and cure the coated plate at 70°C and a relative humidity of 95% to 100% for 48 hours. After curing, dry it at 60°C for 24 hours. The positive plate is put into the electrolyte and formed, and a usable positive plate is obtained after chemical formation.

[0019] The negative plate ...

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Abstract

The invention discloses a lead-acid storage battery positive electrode plate for an electric automobile. The lead-acid storage battery positive electrode plate for the electric automobile consists of a positive electrode active material and a positive electrode gate. The positive electrode active material comprises the following components in mass proportion: 100 of lead powder, 5-13 of tribasic lead sulfate, 0.5-1.5 of tin trioxide, 0.5-6 of super electric-conducting graphite, 0.5-2 of teflon emulsion, 0.5-2 of electric-conducting fiber and 10-20 of dilute sulphuric acid; the positive plate gate is a super calcium multi-element alloy material, and comprises the following components in percentage by weight: 0.11-0.18% of calcium, 0.06-0.2% of selenium soil, 0.03-0.06% of Bi, 1.4-1.8% of tin and the balance being lead. According to the super calcium alloy battery for an electric automobile, assembled by the positive electrode plate provided by the invention, the high-current starting capability and low-temperature discharge capacity are improved and deep cycle service life is prolonged.

Description

technical field [0001] The invention relates to a lead-acid accumulator positive plate for an electric vehicle, belonging to the field of lead-acid accumulator plates. Background technique [0002] In recent years, countries all over the world are stepping up research on high-performance electric vehicles. The key to the popularization and application of electric vehicles lies in its core component - power supply. Considering safety, performance, price ratio and technical maturity, lead-acid batteries are still the most economical and practical power supply for electric vehicles. The working conditions of batteries for electric vehicles are mainly high-current starting, medium-current continuous discharge, and deep-cycle discharge. However, traditional lead-acid batteries are usually used alone as starting batteries or backup batteries, which cannot be used for electric vehicles. With the increase of vehicle speed and weight, the discharge current increases, the discharge ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/68H01M4/62H01M4/14
CPCY02E60/126Y02E60/10
Inventor 薛奎网
Owner SHUANGDENG GRP
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