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High specific energy lead-acid battery production method

A manufacturing method and technology of lead-acid batteries, applied in the direction of lead-acid batteries, lead-acid battery construction, battery electrodes, etc., can solve the problem of difficulty in improving battery weight ratio energy, and failure of lead paste to form a conductive network, components and proportioning Unreasonable and other problems, to achieve the effect of improving the utilization rate of active materials, increasing the porosity, and improving the utilization rate

Active Publication Date: 2016-02-17
SHUANGDENG GRP
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Problems solved by technology

[0004] The main reason for the low utilization rate of the active material is that the resistance between the active materials is large, the components and proportioning ratio of the positive and negative lead paste of the existing lead-acid battery are unreasonable, there is a lack of materials with good electrical conductivity, and a good The conductive network of the battery, coupled with the problems in the process of neutralization paste, plate curing and formation, makes it difficult to improve the weight specific energy of the battery

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Embodiment Construction

[0033] Further illustrate the present invention by embodiment below, making method is as follows in the embodiment (the part that does not illustrate adopts prior art):

[0034] (1) Use special mixing paste equipment, and make reasonable adjustments to the previous mixing paste process, in which the positive lead paste is added with lead powder accounting for 70.5% of the total amount of lead paste (lead powder with an oxidation degree of 80%), accounting for 70.5% of the lead paste Red lead with 10% of the total amount, short fibers accounting for 0.1% of the total amount of the lead paste, and carbon fibers accounting for 0.4% of the total amount of the lead paste were dry mixed for 5 minutes, and then carbon materials and graphene mixed aqueous solutions (which accounted for 1.0% of the total amount of the lead paste) were added Carbon materials and graphene were added to pure water accounting for 14% of the total amount of the lead paste and dispersed in a high-speed disper...

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Abstract

The present invention discloses a high specific energy lead-acid battery production method, which belongs to the technical field of lead-acid battery production. By improving of battery production processes, reduction of plate grid weight, improvement of the degree of oxidation of lead powder, and use of special paste mixing equipment, the conventional paste mixing process is appropriately adjusted, the paste coating weight is increased, polar plate curing and drying processes are improved and optimized, formation way is improved, and a good quality process controllable high specific energy lead-acid battery meeting the battery performance requirements can be produced. The high specific energy lead-acid battery can significantly improve the specific capacity of the battery, and the battery specific energy can be improved by reducing of the weight of non-active materials.

Description

technical field [0001] The invention relates to a method for manufacturing a high specific energy lead-acid battery, belonging to the technical field of lead-acid battery manufacturing. Background technique [0002] The production and application of lead-acid batteries has been more than one hundred years, and the current market capacity is very large. But it has two fatal flaws, one is low specific energy, and the other is short lifespan, and industry technicians are working hard to improve it. [0003] Theoretically speaking, the utilization rate of the positive active material of the lead-acid battery is less than 40%, and the utilization rate of the negative active material is less than 50%. If the utilization rate of the active material is increased, it is still possible to increase the specific energy of the battery. The weight specific energy of most of the current lead-acid batteries is about 30~40Wh / Kg. If the utilization rate of positive and negative active materi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/57H01M10/12
CPCH01M4/57H01M10/12Y02E60/10Y02P70/50
Inventor 唐万明
Owner SHUANGDENG GRP
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