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A kind of lead carbon electrode and preparation method thereof

An electrode, lead-carbon technology, applied in the field of electrodes, can solve the problems of detrimental battery cycle life, industrial scale difficulty, life problems, etc., and achieve the effects of good capacity retention, reduced sulfation, and shortened time.

Inactive Publication Date: 2017-01-11
HUNAN ANSHENG BATTERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Or carbon plating on lead plates is also difficult. This kind of electroplating method can produce lead-carbon electrodes in the laboratory, but it is difficult on an industrial scale, and now lead-acid battery factories need to add electroplating equipment
[0008] C. Carbon skeleton method: glassy carbon is used as the grid. This process is under active development. It may be possible to make lead-carbon electrodes, but there are still problems with the life of the carbon grid. The carbon layer will corrode in the later stage when the carbon grid and the active material are in contact. , detrimental to battery cycle life

Method used

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  • A kind of lead carbon electrode and preparation method thereof
  • A kind of lead carbon electrode and preparation method thereof
  • A kind of lead carbon electrode and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Embodiment 1 selects lead powder 100kg for use:

[0035] A lead-carbon electrode, comprising mixed carbon, carrier, expansion agent, compatibilizer, nano-carbon lead, lead powder, lead powder in the above-mentioned composition is basic component; Mixed carbon is 1kg, wherein graphite 0.4kg, Acetylene black 0.3kg, activated carbon 0.2kg, artificial carbon 0.1kg; Carrier is 1kg, the mass ratio of silicon and carbon in the carrier is 2:1; 1 kg; the expansion agent is composed of a mixture of barium sulfate, lignin, humic acid, and carbon nanotubes, 0.8 kg of barium sulfate, 0.2 kg of lignin, 0.3 kg of humic acid, and 0.1 kg of carbon nanotubes kg.

[0036] A preparation method for a lead-carbon electrode, comprising the steps of:

[0037] Step 1, prepare raw materials:

[0038] Select 100kg of lead powder and 0.1kg of sodium polyaspartate for standby;

[0039] Select graphite 0.4kg, acetylene black 0.3kg, activated carbon 0.2kg, artificial carbon 0.1kg powder to mix to...

Embodiment 2

[0057] Embodiment 2 selects lead powder 100kg for use:

[0058] A lead-carbon electrode, comprising mixed carbon, carrier, expansion agent, compatibilizer, nano-carbon lead, lead powder, lead powder in the above-mentioned composition is basic component; Mixed carbon is 3kg, wherein graphite 1.2kg, Acetylene black 0.9kg, activated carbon 0.6kg, artificial carbon 0.3kg; Carrier is 2kg, the mass ratio of silicon and carbon in the carrier is 2:1; 2 kg; the expansion agent is composed of a mixture of barium sulfate, lignin, humic acid and carbon nanotubes, 1 kg of barium sulfate, 0.2 kg of lignin, 0.4 kg of humic acid, and 0.1 kg of carbon nanotubes kg.

[0059] A preparation method for a lead-carbon electrode, comprising the steps of:

[0060] Step 1, prepare raw materials:

[0061] Select 100kg of lead powder and 0.3kg of sodium polyaspartate for standby;

[0062] Select graphite 1.2kg, acetylene black 0.9kg, activated carbon 0.6kg, artificial carbon 0.3kg powder to mix to ob...

Embodiment 3

[0080] Embodiment 3 selects lead powder 100kg for use:

[0081] A lead-carbon electrode comprising mixed carbon, carrier, expansion agent, compatibilizer, nano-carbon lead, lead powder, lead powder in the above-mentioned composition is basic component; mixed carbon is 2kg, wherein graphite 0.8kg, Acetylene black 0.6kg, activated carbon 0.4kg, artificial carbon 0.2kg; the carrier is 1.5kg, the mass ratio of silicon and carbon in the carrier is 2:1; the expansion agent is 1.6 kg, the compatibility aid is 0.2 kg, nano-carbon lead 1.5 kg; the expansion agent is a mixture of barium sulfate, lignin, humic acid, and carbon nanotubes. Barium sulfate is 0.9 kg, lignin is 0.2 kg, humic acid is 0.4 kg, and carbon nanotubes is 0.1 kg.

[0082] A preparation method for a lead-carbon electrode, comprising the steps of:

[0083] Step 1, prepare raw materials:

[0084] Select 100kg of lead powder and 0.2kg of sodium polyaspartate for standby;

[0085] Select graphite 0.8kg, acetylene blac...

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Abstract

The invention discloses a lead carbon electrode and a preparation method thereof. The lead carbon electrode contains mixed carbon, a carrier, an expansive agent, an intermiscibility additive, nanocarbon coated lead, and lead powder. Among the components, the lead powder is the basic component; the mass ratio of mixed carbon to lead powder is 1%-3%, the mass ratio of the carrier to the lead powder is 1%-2%, the mass ratio of the expansive agent to the lead powder is 1.4%-1.7%, the mass ratio of the intermiscibility additive to the lead powder is 0.1%-0.3%, and the mass ratio of the nanocarbon coated lead to the lead powder is 1%-2%. The invention adopts a six-step process to obtain the lead carbon electrode, and the technological steps include raw material preparation, raw material mixing, paste mixing process, coating process, curing process, and polar plate formation. The purpose of the invention is to acquire a lead carbon electrode by formulation technique and a preparation method thereof.

Description

technical field [0001] The invention relates to the field of electrodes, in particular to a lead-carbon electrode and a preparation method thereof. Background technique [0002] Lead-acid batteries have a history of more than 150 years since they were invented. Because of their mature technology, high cost performance, large capacity, good safety performance, and good circular economic benefits, they have become the battery with the largest output and the widest range of applications in the world. . However, due to the disadvantages of low specific power and short cycle life, lead-acid batteries have become a bottleneck for the further development of lead-acid batteries. Especially when using high-rate partial charge state charging and discharging, the rapid accumulation of lead sulfate on the negative electrode will lead to sulfuric acid at the negative electrode. The failure of salinization makes the cycle life of the battery low. [0003] Lead-carbon electrodes can be a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/16H01M4/20H01M4/38
CPCH01M4/16H01M4/20H01M4/362H01M4/57H01M4/62Y02E60/10
Inventor 王其昌李中奇殷桂华
Owner HUNAN ANSHENG BATTERY
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