Negative plate of battery, preparation method thereof and battery comprising negative plate

A negative plate and battery technology, applied to battery electrodes, lead-acid battery electrodes, lead-acid batteries, etc., can solve the problems of long charging time, short battery cycle life, poor starting performance at low temperature, etc., to inhibit crystal growth and improve Large current discharge capability, effect of improving cycle life

Inactive Publication Date: 2012-09-19
湖南维邦新能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to provide a negative electrode plate of a battery, its preparation method and a battery containing it, so as to solve the problems of short cycle life, long charging time and poor starting performance at low temperature of the battery in the prior art

Method used

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  • Negative plate of battery, preparation method thereof and battery comprising negative plate
  • Negative plate of battery, preparation method thereof and battery comprising negative plate

Examples

Experimental program
Comparison scheme
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Embodiment approach

[0025] According to a typical embodiment of the present invention, a battery is provided. The battery includes the aforementioned negative plate. The positive plate can be completed by the positive plate manufacturing process of the traditional lead-acid battery. The finished battery can be obtained by internalizing the green electrode plate and the assembled battery, or the green electrode plate can be externalized to form a mature electrode plate and then assembled into a finished battery. Preferably, the aforementioned battery is a lead-carbon super battery.

[0026] According to a typical implementation of the present invention, the preparation method of the above-mentioned negative electrode plate includes the following steps: 1) mixing the active material of the battery, the capacitor material and the conductive steric resistance agent uniformly, and then adding water and sulfuric acid solution to prepare the negative electrode lead of the battery paste; 2) apply the l...

Embodiment l

[0029] The content of each component of the negative electrode in this example is shown in Table 1. After mixing the battery active material component, the capacitor material component, and the conductive steric hindrance agent component evenly, add water and sulfuric acid respectively and stir in a paste mixing machine to make a lead paste. The prepared lead paste is coated on the grid, cured at 60°C and 98% relative humidity, dried at 70°C to obtain a raw electrode plate, and the green electrode plate is formed to obtain a negative mature electrode plate for a battery.

[0030] The positive plate in this embodiment is made by the traditional method of making the positive plate of the lead-acid battery, and the positive plate and the negative plate of the battery are assembled into a battery for performance testing.

[0031] In this embodiment, after high content of activated carbon is added, the negative electrode has good capacitive characteristics. When a large current is c...

Embodiment 2

[0034] The content of each component of the negative electrode in this example is shown in Table 1. After mixing the battery active material component, the capacitor material component, and the conductive steric hindrance agent component evenly, add water and sulfuric acid respectively and stir in a paste mixing machine to make a lead paste. The prepared lead paste is coated on the grid, cured at 60°C and 98% relative humidity, dried at 70°C to obtain a raw electrode plate, and the green electrode plate is formed to obtain a negative mature electrode plate for a battery. The positive plate in this embodiment is made by the traditional method of making the positive plate of the lead-acid battery, and the positive plate and the negative plate of the battery are assembled into a battery for performance testing.

[0035] In this embodiment, the addition of activated carbon makes the negative electrode have good capacitance characteristics. When high-current charge and discharge are...

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Abstract

The invention discloses a negative plate of a battery, a preparation method thereof and the battery comprising the negative plate. The negative plate is composed of a plate grid and a negative pole material coated on the plate grid, and the negative pole material comprises a battery active material, a capacitor material as well as a conductive steric hindrance agent; the battery active material comprises 100 parts by weight of lead powder, 0.6-2.0 parts by weight of barium sulfate and 0.1-0.5 part by weight of short fiber, and the capacitor material comprises 0.1-10 parts by weight of active carbon; and the additive amount of the electric conduction steric hindrance agent is 0.1-5.0 in parts by weight, and the conductive steric hindrance agent comprises Magneli mutual sulfoxide titanium oxide and/or plumbous acid barium. The raw material of the negative plate of the battery provided by the invention can be used for postponing a negative board sulphate phenomenon through combining the three parts, the cold-starting property is markedly improved, and the heavy-current charge-discharge property is optimized.

Description

technical field [0001] The invention relates to the field of batteries, in particular to a negative electrode plate of a battery, a preparation method thereof and a battery comprising the same. Background technique [0002] In recent years, with the shortage of petroleum resources and rising prices, the development and use of electric drive vehicles has become the hottest topic today. The bottleneck that restricts the development of electric drive vehicles lies in the power to drive the vehicles - the battery. At present, batteries that can be used to drive vehicles include lithium-ion batteries, metal hydride nickel batteries, lead-acid batteries, etc. Among them, lead-acid batteries with mature technology and moderate prices occupy an absolute proportion, accounting for more than 90% of the market share of electric vehicle batteries. However, lead-acid batteries have been criticized for their short cycle life, poor high-current performance, and poor low-temperature starti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/62H01M4/14H01M4/16H01M10/12
CPCY02E60/126Y02E60/10Y02P70/50
Inventor 黄伟国张庆华李虹云潘登王良勇
Owner 湖南维邦新能源有限公司
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