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Positive plate of lead storage battery for electric bicycle

A technology for electric bicycles and lead-acid batteries, applied in the direction of lead-acid battery electrodes, battery electrodes, circuits, etc., can solve the problems of poor performance of the positive plate of the battery, short life, poor low-temperature performance of the lead-acid battery, etc., and achieve an increase in battery weight specific energy , Improve electrical conductivity, long cycle life effect

Inactive Publication Date: 2011-11-16
JIANGSU SHUANGDENG GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, lead-acid batteries have fatal defects of poor low temperature performance and short life, and the poor performance of the positive plate of the battery is one of the main reasons.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Preparation of positive electrode active material and positive plate production: 100 kg of lead powder, 5 kg of polybasic lead sulfate, 0.5 kg of antimony trioxide, 1.5 kg of colloidal graphite, 0.8 kg of activated carbon material, 2 kg of conductive fiber skeleton, 16 kg of dilute sulfuric acid kg (density 1.3g / cm 3 ), the length of the conductive fiber skeleton is 1-3 mm, and an appropriate amount of water is used to knead the above raw materials at 60 ° C, and the multi-element alloy of lead is used as the positive grid (the mass percentage content is: 0.1% of selenium soil, 0.015% of bismuth, Tin 1.0%, the rest is lead). Coating is carried out on a coating machine, and the coated electrode plate is cured at 70°C and a relative humidity of 95% to 100%. The time is not less than 24 hours. The positive plate is put into the electrolyte and formed, and a usable positive plate is obtained after chemical formation.

[0013] The negative plate adopts the current negative...

Embodiment 2

[0016] Preparation of positive electrode active material and positive plate production: 100 kg of lead powder, 4 kg of polybasic lead sulfate, 0.9 kg of antimony trioxide, 0.5 kg of colloidal graphite, 1.6 kg of activated carbon material, 3 kg of conductive fiber skeleton, 13 kg of dilute sulfuric acid kg (with a density of 1.34 g / cm 3 ), the length of the conductive fiber skeleton is 1-3 mm, and an appropriate amount of water. The above-mentioned raw materials are mixed at 55 ° C, and the multi-element alloy of lead is used as the positive grid (mass percentage content: selenium 0.06%, bismuth 0.025%, Tin 1.25%, the rest is lead). Coating is carried out on a coating machine, and the coated electrode plate is cured at 65°C and a relative humidity of 95% to 100%, and the time is not less than 24h. After the curing is completed, it is dried at 70°C for 12h, and the resulting The positive plate is put into the electrolyte and formed, and a usable positive plate is obtained after...

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Abstract

The invention discloses a positive plate of a lead storage battery for an electric bicycle. The anode active material comprises the following components in parts by weight: 100 parts of aluminum powder, 3-8 parts of polybase lead sulfate, 0.3-1 part of antimonous oxide, 0.3-4 parts of aquadag, 0.3-4 parts of active carbon material, 0.3-3 parts of conductive fiber framework and 3-18 parts of dilute sulphuric acid. The weight ratio of the anode active material to a positive grid is (81-87): (13-19), wherein the positive grid is a complex alloy of lead. Through the invention, the components and proportion of the active substances of the polar plate are improved and optimized so that multiple carbon materials are contained, and the positive grid is further improved; and the obtained lead storage battery has excellent low-temperature performance, good high-rate discharge performance and long cycle life, and is particularly advantageous to the market competition of electric bicycles.

Description

technical field [0001] The invention relates to a lead storage battery positive plate for an electric bicycle, belonging to the field of lead storage battery plates. Background technique [0002] In recent years, many countries are stepping up research on high-performance electric bicycles. The commercial success of electric bicycles depends on its core component - the power supply. Considering safety, performance, price and technical maturity, valve-regulated sealed lead-acid batteries are still the most economical and practical power supply for electric bicycles . Batteries for electric mopeds are mainly discharged continuously with medium current, mainly with deep cycle. Traditional lead-acid batteries are usually used alone as starter batteries or backup batteries. They are generally used in shallow cycles, with relatively less discharge depth and frequency, and do not have high requirements for the structure, strength, and charge acceptance of lead paste. As the spee...

Claims

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Application Information

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IPC IPC(8): H01M4/14H01M4/62
CPCY02E60/126Y02E60/10
Inventor 薛奎网
Owner JIANGSU SHUANGDENG GROUP
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