Novel storage battery production method

A manufacturing method and battery technology, applied in the direction of lead-acid battery, lead-acid battery electrode, lead-acid battery construction, etc., can solve the problems of overcharge and overdischarge of independent unit cells, failure of combined power supply, decrease of battery service life, etc. High-rate charge-discharge performance, increased electrochemical reaction activity, and improved battery life

Active Publication Date: 2018-08-28
山东鑫时利新能源科技有限公司
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AI Technical Summary

Problems solved by technology

[0022] The failure of the positive active material will also reduce the service life of the battery
With the use of the battery, the positive active material PbO 2 The bonds between the particles become loose and soften, and they will fall off the grid, resulting in a decrease in battery capacity
In addition, the growth and deformation of the positive grid during use will also cause lead dioxide PbO 2 The falling off also causes a drop in battery capacity
[0023] (3) Corrosion deformation of the positive grid
[0024] The main component of the positive electrode grid is metallic lead, which will be oxidized into lead sulfate and lead dioxide during the charging and use of the battery. The formation of the lead dioxide corrosion layer will cause stress to the lead alloy, resulting in linear growth and deformation of the grid If the deformation exceeds a certain level, the overall plate will be damaged, and at the same time, the active material will fall off due to poor contact with the grid, resulting in a decrease in the service life of the battery.
[0025] (4) Early capacity loss phenomenon
When such a plurality of integral batteries are combined in series and parallel to form a power supply for external use, some independent unit batteries will be overcharged and overdischarged, which will damage these independent unit batteries and cause the entire combined power supply to fail.
[0029] The above are the main reasons for the short service life of lead-acid batteries
At the same time, due to the design and structure of the traditional lead-acid battery, its high rate charge and discharge performance is poor
When used as a power source, the charging time is long, which causes some inconvenience to people.
[0030] Therefore, the electrochemical reaction system of the lead-acid battery can be used to improve the traditional lead-acid battery manufacturing process, and provide a method that can not only solve the cumbersome problems of the traditional production process, but also solve the problem of large environmental pollution in the manufacturing process, and can also improve the battery life. New battery manufacturing methods for service life and high-rate charge-discharge performance are very important

Method used

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  • Novel storage battery production method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] (1) Preparation of porous carbon material preparation raw material powder

[0070] In parts by weight, 23 parts of wood chips, 40 parts of coconut shells, 30 parts of walnut shells, 3.5 parts of graphite, and 3.5 parts of low-melting pitch are mixed together, and the porous carbon material is prepared after crushing and finely grinding the raw material powder, wherein , the particle size of the raw material powder prepared from the porous carbon material is 20-300 μm.

[0071] (2) Preparation of positive electrode plate

[0072] In parts by weight, 100 parts of porous carbon materials are used to prepare raw material powder, 9 parts of PbSO 4 , 1.5 parts of Pb 3 o 4 , 0.05 parts of SnO 2 , 0.05 Bi 2 o 3 Mix well, among them, PbSO 4 , Pb 3 o 4 , SnO 2 and Bi 2 o 3 The size of the particles is 20nm to 1000nm; then, add 4 parts of coal tar, 2 parts of polyvinyl alcohol, and a certain amount of deionized water to the mixed powder material in order to make a past...

Embodiment 2

[0084] (1) Preparation of porous carbon material preparation raw material powder

[0085] In parts by weight, 10 parts of charcoal, 10 parts of rice husk, 31 parts of coconut shell, 30 parts of walnut shell, 8.5 parts of graphite, and 10.5 parts of low-melting pitch are mixed together, crushed and ground to make a porous carbon material The raw material powder is prepared, and the particle size of the raw material powder prepared by the porous carbon material is 20-300 μm.

[0086] (2) Preparation of positive electrode plate

[0087] In parts by weight, 100 parts of porous carbon materials are used to prepare raw material powder, 18 parts of Pb(OH) 2 , 1.5 parts of PbO, 0.18 parts of SnO 2 , 0.19 Bi 2 o 3 Mix well, among them, Pb(OH) 2 , PbO, SnO 2 and Bi 2 o 3 The particle size of the mixture is 20nm to 1000nm; then, add 2 parts of coal tar, 4 parts of polyvinyl alcohol, and a certain amount of deionized water to the mixed powder material in order to make a paste; Co...

Embodiment 3

[0099] (1) Preparation of porous carbon materials Preparation of materials

[0100] In parts by weight, 10 parts of sawdust, 10 parts of rice husk, 30 parts of coconut shell, 25 parts of walnut shell, 12 parts of carbon fiber material, 6 parts of graphite, and 7 parts of low-melting pitch are mixed together, crushed and ground The raw material powder is prepared from the porous carbon material, and the particle size of the raw material powder prepared from the porous carbon material is 20-300 μm.

[0101] (2) Preparation of positive electrode plate

[0102] In parts by weight, 100 parts of porous carbon materials are used to prepare raw material powder, 15 parts of PbCO 3 , 0.115 parts of SnO 2 , 0.115 Bi 2 o 3 Mix well, among them, PbCO 3 , SnO 2 and Bi 2 o 3 The particle size of the mixture is 20nm to 1000 nm; then, add 3 parts of coal tar, 3 parts of polyvinyl alcohol, and a certain amount of deionized water to the mixed powder material to make a paste; Coated in t...

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Abstract

The invention discloses a novel storage battery production method. The novel storage battery production method comprises the following steps: preparing raw material powder for preparing a porous carbon material, mixing the raw material powder for preparing the porous carbon material and raw materials for preparing a positive and negative active substances, stirring and preparing a paste-like substance, and smearing the paste-like substance on a graphite grid; carbonizing the paste-coated graphite grid, activating, perforating, cooling, thus obtaining a positive polar electrode and a negative polar electrode; laminating the positive polar plate, a glass fiber partition plate and the negative polar plate to form a multilayer polar plate, assembling the laminated multilayer polar plate into abattery box, and injecting electrolyte into the battery box; after the battery box is filled with the electrolyte, standing for 30 minutes, charging and discharging a battery, and activating the positive and negative active substances; and after the battery is domesticated, adjusting the concentration of the electrolyte in the battery, and sealing a liquid injection hole of the battery. By adopting the novel storage battery production method, not only can the problem of the complicated traditional production process be solved, but also the problem that the environment is severely polluted inthe production process can be solved, the service life of the battery can be prolonged, and the high-magnification charging-discharging performance can be improved.

Description

technical field [0001] The invention relates to the technical field of accumulators, in particular to a novel accumulator manufacturing method. Background technique [0002] At present, countries around the world are vigorously developing "green transportation", and electric vehicles with zero exhaust emissions, no pollution, and no noise have broad prospects for development. The domestic demand for pure electric vehicles has been continuously strengthened with the intensification of the oil and environmental crisis, and the country has also included electric vehicles in the 863 major special projects. The core of an electric vehicle is the power source as the power source. At present, the power source is mainly a chemical power source, such as lithium-ion battery, nickel-metal hydride battery, fuel cell, lead-acid battery, etc., among which lead-acid battery has been widely used. Over the past few decades, lead-acid batteries have occupied most of the market in the field o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/12H01M10/14H01M10/44H01M4/20H01M4/36H01M4/56H01M4/58H01M4/62H01M4/73B82Y30/00
CPCB82Y30/00H01M4/20H01M4/362H01M4/56H01M4/58H01M4/62H01M4/625H01M4/628H01M4/73H01M10/12H01M10/14H01M10/446Y02E60/10Y02P70/50
Inventor 朱玉法李娟娟沈建兴
Owner 山东鑫时利新能源科技有限公司
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