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An externally applied lead-carbon start-stop battery negative plate and its preparation method and battery

A battery negative electrode, lead-carbon technology, applied in the direction of lead-acid battery electrodes, battery electrodes, lead-acid batteries, etc., can solve problems such as not being solved well, achieve the effects of preventing failure, satisfying high power, and inhibiting sulfation

Active Publication Date: 2021-05-25
吉林省凯禹电化学储能技术发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are few reports on preventing the hydrogen evolution shedding of the negative electrode and the inhibition of sulfation on the surface of carbon materials, and the related problems are still not well resolved.

Method used

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  • An externally applied lead-carbon start-stop battery negative plate and its preparation method and battery
  • An externally applied lead-carbon start-stop battery negative plate and its preparation method and battery
  • An externally applied lead-carbon start-stop battery negative plate and its preparation method and battery

Examples

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Effect test

preparation example Construction

[0035] The invention discloses a method for preparing a negative electrode plate of an externally applied lead-carbon start-stop battery, which comprises the following steps:

[0036] S1. Preparation of negative lead paste: Mix the raw material lead powder, humic acid, short fiber, barium sulfate, sodium lignosulfonate and acetylene black evenly to make an active material, add water and sulfuric acid slowly to the active material, and stir Uniformly made negative lead paste;

[0037] S2. Preparation of carbon sheet: Mix raw activated carbon, conductive carbon material, and linking agent in absolute ethanol evenly, and evaporate the absolute ethanol to dryness by constant temperature stirring to obtain a uniform mixture; add absolute ethanol to the mixture and roll it into a sheet , and then dried to obtain a carbon sheet;

[0038]S3. Prepare the inner layer hydrogel: add the raw material adhesive and the conductive carbon material into deionized water, stir evenly, heat and s...

Embodiment 1

[0119] This embodiment provides a negative electrode plate of an externally applied lead-carbon start-stop battery, including a green plate and a carbon sheet, the carbon sheet is arranged on both sides of the green electrode plate, and also includes a carbon sheet arranged on the surface of the carbon sheet away from the green electrode plate. The inner hydrogel and the outer acid gel arranged on the surface of the inner hydrogel away from the carbon sheet.

[0120] The negative plate of the above-mentioned externally applied lead-carbon start-stop battery is prepared by the following method, including the following steps:

[0121] (1) Lead powder and humic acid accounting for 5% of the lead powder quality, 5% 10mm polyester, 5% barium sulfate, 5% sodium lignosulfonate, and 5% acetylene black are mixed evenly to make active substances, Add 10% of water and 10% of sulfuric acid with a concentration of 4.35mol / L to the mixed active substance slowly successively, and the additio...

Embodiment 2

[0136] This embodiment provides an externally applied lead-carbon start-stop battery, which adopts the negative plate of the above-mentioned externally applied lead-carbon start-stop battery, and uses PbO 2 -SiO 2 Composite additives; the mass ratio of the positive plate to the negative plate is 4:3-4.

[0137] The externally applied lead-carbon start-stop battery of this embodiment is prepared by the following method:

[0138] Step 1, preparing the positive plate; preparing the positive plate includes the following steps:

[0139] S11. Using the constant current deposition method, place the flat titanium in 1M lead nitrate, 0.2M nitric acid, 0.05M nano-SiO 2 , 0.05M sodium tripolyphosphate mixed solution, the counter electrode is a platinum electrode, and the deposition current density is 50mA / cm -2 , the deposition time is 1.5h, the deposition temperature is 25℃, and the α / β-PbO 2 -SiO 2 Complex;

[0140] S12, lead powder and α / β-PbO accounting for 13% of the mass of l...

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Abstract

The invention discloses an externally-applied lead-carbon start-stop battery negative plate, a preparation method and a battery, which belong to the technical field of lead-carbon start-stop batteries, and solve the problem of poor matching between positive electrodes and negative electrodes in the prior art, resulting in poor performance between electrodes. Imbalance, reduced battery life, etc. The invention provides a negative electrode plate of an externally applied lead-carbon start-stop battery, which includes a green plate and a carbon sheet. The direction of the polar plate is sequentially provided with an inner layer of hydrogel and an outer layer of acid gel. The start-stop battery using the externally-applied lead-carbon start-stop battery negative plate has higher charge-discharge efficiency and longer cycle life, and has broad application prospects in the start-stop field.

Description

technical field [0001] The invention belongs to the technical field of lead-carbon start-stop batteries, and in particular relates to an externally applied lead-carbon start-stop battery negative plate, a preparation method thereof and a battery. Background technique [0002] Car driving, especially in traffic jams, has considerable fuel consumption and exhaust emissions. According to statistics, when the engine is idled for a short period of time, the waste of energy consumption is greater than 17%, and the toxic substances contained in the exhaust gas are 73 times that of the vehicle at a speed of 80km / h. The car start-stop system can shut down the engine when the vehicle is idling, and restart the engine when needed, which has better fuel economy and reduces emissions and environmental pollution. As a key component of the start-stop system, the technical level of the battery restricts the start-stop performance of the car. The working condition of the start-stop battery...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/14H01M4/20H01M4/62H01M10/06
CPCH01M4/14H01M4/20H01M4/62H01M10/06H01M2220/20Y02E60/10
Inventor 林海波包金鹏林楠
Owner 吉林省凯禹电化学储能技术发展有限公司
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