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Lead-carbon battery negative electrode and preparation method thereof

A lead-carbon battery and negative electrode technology, which is applied in the direction of lead-acid battery electrodes, battery electrodes, chemical instruments and methods, etc., can solve the problems of reducing battery hydrogen evolution potential, thermal runaway, and battery failure, so as to reduce hydrogen evolution potential and prolong service life , the effect of inhibiting dehydration

Inactive Publication Date: 2022-07-01
ANHUI ZHENGXIBIAOWANG NEW ENERGY CO LTD
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Problems solved by technology

[0004] The invention provides a negative electrode of a lead-carbon battery and a preparation method thereof, aiming to solve the problem that due to the addition of more carbon in the lead-carbon battery, the hydrogen evolution potential of the battery is reduced, resulting in serious dehydration when the battery is charged, and the battery is prone to thermal runaway. The problem

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  • Lead-carbon battery negative electrode and preparation method thereof
  • Lead-carbon battery negative electrode and preparation method thereof
  • Lead-carbon battery negative electrode and preparation method thereof

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[0028] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0029] see Figure 1-5 , The present invention provides a technical solution for the negative electrode of a lead-carbon battery: comprising a negative electrode grid and lead paste, and the lead paste includes the following weight groups:

[0030] 20-30 parts of lead powder, 10-15 parts of sulfonated graphene, 0.8-1.2 parts of carbon black, 0.5-1 part of short fibers, 0.5-1.2 parts of barium sulfate, and 1-1.5 parts of additives.

[0031] The lead paste includes the following weight groups: 25 parts of lead powder, 15 parts of sulfonated graphene, 1.2 parts of carbon black, 0.8 parts of ...

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Abstract

The invention is suitable for the technical field of lead-carbon batteries, and provides a lead-carbon battery negative electrode and a preparation method thereof. The lead-carbon battery negative electrode comprises a negative plate grid and lead paste, and the lead paste comprises the following components in parts by weight: 20-30 parts of lead powder, 10-15 parts of sulfonated graphene, 0.8-1.2 parts of carbon black, 0.5-1 part of short fibers, 0.5-1.2 parts of barium sulfate and 1-1.5 parts of an additive. According to the present invention, the process and the equipment are simple, the large-scale industrial production is easy to achieve, the components are reasonably used, such that the battery has good capacitance characteristics, the instant large current discharge performance of the battery is enhanced, the negative electrode sulfation problem is effectively inhibited, the hydrogen evolution potential of the battery is reduced, the water loss of the battery can be inhibited, and the service life of the battery is prolonged.

Description

technical field [0001] The invention belongs to the technical field of lead-carbon batteries, and in particular relates to a negative electrode of a lead-carbon battery and a preparation method thereof. Background technique [0002] The lead-carbon battery is a capacitive lead-acid battery, which is a technology evolved from the traditional lead-acid battery. It adds activated carbon to the negative electrode of the lead-acid battery, which can significantly improve the life of the lead-acid battery. The positive active material of ordinary lead-acid batteries is lead oxide (PbO2), and the negative active material is lead (Pb). If all the negative active materials Pb are replaced with activated carbon, the ordinary lead-acid battery becomes a hybrid capacitor; In the negative electrode active material Pb, the ordinary lead-acid battery becomes a lead-carbon battery. [0003] At present, the lead-carbon power battery on the market can effectively inhibit the sulfation phenom...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/14H01M4/57H01M4/62H01M4/20B01F27/906B01F31/441
CPCH01M4/14H01M4/57H01M4/628H01M4/20H01M2004/021H01M2004/027
Inventor 曹超然
Owner ANHUI ZHENGXIBIAOWANG NEW ENERGY CO LTD
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