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A kind of assembly method of lead-acid battery

A lead-acid battery, battery technology, applied in the direction of lead-acid battery, lead-acid battery construction, secondary battery repair/maintenance, etc. The effect of cycle life

Active Publication Date: 2017-02-08
奇瑞新能源汽车股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Batteries produced by this assembly process are often prone to falling behind in a single battery in the entire set of batteries after a period of use, resulting in a decrease in the life of the entire set of batteries

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The steps of the matching method of the lead-acid battery of the present embodiment are as follows:

[0019] For the same batch of batteries, use a multimeter or other testing equipment to detect and record the static open circuit voltage of the battery, and remove the batteries whose static open circuit voltage does not meet the requirements; then connect the batteries in series to the charging and discharging equipment, and connect them well. Voltage collection line (it is better to use equipment with automatic data recording function, and ensure that the collection accuracy of the equipment is 0.1~5s), set the 0.33C rate discharge current to discharge the battery for the first time, and the discharge time is 3 hours, record it The dynamic voltage of each battery at the end of discharge; after the first discharge, the batteries that meet the rated capacity requirements are grouped for the first time according to the range of dynamic voltage difference at the end of dis...

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PUM

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Abstract

The purpose of the present invention is to propose a method for grouping lead-acid batteries, optimize the existing grouping process, and improve the consistency of the cells of the whole group of batteries. The grouping method of the lead-acid battery of the present invention comprises the following steps: A: detect and record the static open circuit voltage of each battery, and reject the battery whose static open circuit voltage does not meet the requirements; Carry out the first discharge, and carry out the first combination of batteries according to the dynamic voltage value of the first discharge end state; C: Store the batteries after the first combination for a predetermined time; D: Use the predetermined rate current and Discharging time The batteries in the same group after the first grouping are discharged for the second time, and the batteries are grouped for the second time according to the dynamic voltage value of the second discharge end state.

Description

technical field [0001] The invention belongs to the technical field of lead-acid batteries, and in particular relates to a method for combining lead-acid batteries. Background technique [0002] Energy strategy has become an important development strategy of many countries, and the energy crisis will become the main challenge many countries will face in the future. Conserving resources and reducing waste gas emissions are the primary problems for governments of all countries to solve. Under this situation, my country attaches great importance to the development of electric vehicles, and has received strong support from government departments. [0003] After two hundred years of development, lead-acid batteries are currently the most mature batteries in the field of rechargeable batteries. With the intensification of global energy consumption, electric vehicles are popular as a new type of transportation that is environmentally friendly and energy-saving. Due to technical ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/12H01M10/44
CPCY02E60/10Y02P70/50
Inventor 朱红
Owner 奇瑞新能源汽车股份有限公司