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Internalization process of a valve-regulated lead-acid battery for electric vehicles

A lead-acid battery, electric vehicle technology, applied in lead-acid battery, lead-acid battery construction, secondary battery and other directions, can solve problems such as lead pollution, water waste, heavy metal cadmium content exceeding the standard, and achieve early capacity attenuation, Ensure consistency and solve the effect of short life in deep cycle

Active Publication Date: 2016-08-17
黄山振龙电源有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cadmium-containing formula and external chemical production process of traditional battery products have resulted in excessive heavy metal cadmium content and lead-containing pollutants, as well as serious waste of energy and water resources.
The problem of lead pollution has not only been criticized by the outside world, but also has become a bottleneck restricting the healthy development of the industry

Method used

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  • Internalization process of a valve-regulated lead-acid battery for electric vehicles

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A process for internalizing a valve-regulated lead-acid battery for an electric vehicle, comprising the steps of:

[0022] (1) Manufacturing of lead powder: the prepared lead powder is stored for 72 hours, the oxidation degree of the positive electrode lead powder is 78-82%, and the apparent density is 1.3-1.4g / cm 3 ;The oxidation degree of lead powder is 75-80%, and the apparent density is 1.4-1.5g / cm 3 ;

[0023] (2) Grid manufacturing: including a positive grid and a negative grid, the grid is cast from a lead-calcium alloy, and the mass percentage of each component in the lead-calcium alloy of the positive grid is Ca 0.12%, Al 0.02%, Sn 1.6%, the Pb of balance; The mass percent of each component in the lead-calcium alloy of described negative electrode grid is Ca 0.12%, Al 0.02%, Sn 0.15%, the Pb of balance;

[0024] (3) Grid surface treatment: The treatment process includes two stages, among which, the treatment temperature of the first stage is 90°C, the humidit...

Embodiment 2

[0029] Compared with Example 1, the difference is that in step (2) the mass percent of each component in the lead-calcium alloy of the positive grid is Ca 0.12%, Al 0.02%, Sn 1.5%, and Pb in the balance; the negative electrode The mass percent of each component in the lead-calcium alloy of the grid is Ca 0.12%, Al 0.02%, Sn 0.1, and the balance Pb.

Embodiment 3

[0031] Compared with Example 1, the difference is that in step (2) the mass percent of each component in the lead-calcium alloy of the positive grid is Ca 0.12%, Al 0.02%, Sn 1.7%, and Pb in the balance; the negative electrode The mass percentage of each component in the lead-calcium alloy of the grid is Ca 0.12%, Al 0.02%, Sn 0.2, and the balance Pb.

[0032] Table 1 Step (6) charging process

[0033]

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Abstract

The invention discloses an internalization process of a valve-regulated lead-acid battery for an electric vehicle, comprising the following steps: (1) manufacturing lead powder; (2) manufacturing grid; (3) grid surface treatment; (4) pole plate Manufacturing; (5) assembly process; (6) charging process. The invention adopts new material formula, new structure, new process, new technology and other internalization process, solves the industrial technical problem that the traditional process produces a large amount of lead-containing and cadmium-containing heavy metal sewage discharge, and lays the foundation for energy saving and emission reduction.

Description

technical field [0001] The invention belongs to the technical field of accumulators, and in particular relates to an internalization process of a valve-regulated lead-acid accumulator for electric vehicles. Background technique [0002] According to the new access conditions of the Ministry of Industry and Information Technology for the production of power electric batteries and the latest requirements of the Ministry of Environmental Protection, my country will eliminate cadmium-containing batteries after 2013, and lead-acid batteries must implement the internalization process. The country attaches great importance to the lead-acid power battery industry, bringing hope to the standardized and orderly development of the entire industry. It is already an inevitable trend to eliminate backward production capacity and technology, promote the transfer and concentration of production capacity, and realize the overall upgrading and improvement of the industry. . The cadmium-cont...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/12H01M10/44
CPCH01M4/57H01M4/685H01M10/121Y02E60/10Y02P70/50
Inventor 汪纲要
Owner 黄山振龙电源有限公司
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