Grouping method of lead-acid battery

A lead-acid battery and grouping technology, which is applied in the direction of lead-acid battery, lead-acid battery construction, secondary battery repair/maintenance, etc., can solve the problems of battery backwardness and battery life decline, and achieve easy implementation, improved consistency, Effect of improving cycle life

Active Publication Date: 2013-10-09
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 assembly method of the lead-acid battery of this embodiment are as follows:

[0019] For the same batch of batteries, use a multimeter or other testing equipment to detect and record the standing open circuit voltage of the battery, and remove the batteries that do not meet the requirements of the standing open circuit voltage; then connect the batteries in series to the charging and discharging equipment and connect them well Voltage acquisition line (it is better to use equipment with automatic data recording function, and ensure the acquisition accuracy of the equipment is 0.1~5s), set 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 battery that meets the requirements of the rated capacity will be matched for the first time according to the range of the dynamic voltage difference of the end of ...

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PUM

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Abstract

The invention aims at providing a grouping method of a lead-acid battery, which aims at optimizing the existing grouping process, and improving the consistency of single batteries of the entire group of batteries. The grouping method of the lead-acid battery comprises the following steps of A, detecting and recording the standing open-circuit voltage of each battery, and eliminating the battery, the standing open-circuit voltage of which cannot meet the requirement; B, primarily discharging the battery according to the predetermined magnified current and discharging time, and primarily grouping the batteries according to the primary discharging final-state dynamic voltage value; C, storing the batteries after being primarily grouped for predetermined time; and D, secondarily discharging the primarily-grouped batteries according to the predetermined magnified current and discharging time, and secondarily grouping the batteries according to the secondary discharging final-state dynamic voltage value.

Description

Technical field [0001] The invention belongs to the technical field of lead-acid batteries, and specifically relates to a method for assembling lead-acid batteries. Background technique [0002] Energy strategy has become an important development strategy for many countries, and the energy crisis will become a major challenge facing many countries in the future. Saving resources and reducing exhaust emissions are the first problems that governments of all countries must solve. Under this situation, our 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 technologically mature battery in the field of rechargeable batteries. With the increasing global energy consumption, electric vehicles are becoming popular as a new type of environmentally friendly and energy-saving transportation. Due to technical bottlen...

Claims

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Application Information

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Patent Type & Authority Applications(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
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