Matching method for lithium ion power batteries

A power battery and lithium-ion technology, which is applied in the field of lithium-ion power battery packs, can solve the problems of battery efficiency reduction, failure, and poor cell consistency, and achieve the effect of increasing high voltage

Active Publication Date: 2012-10-31
SHENZHEN CENT POWER TECH
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  • Abstract
  • Description
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Problems solved by technology

[0004] The embodiment of the present invention provides a lithium-ion power battery matching method, which aims to solve the extreme problems such as low batt

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  • Matching method for lithium ion power batteries
  • Matching method for lithium ion power batteries
  • Matching method for lithium ion power batteries

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Embodiment Construction

[0016] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0017] figure 1 It shows the implementation process of the lithium-ion power battery assembly method provided by the embodiment of the present invention, and is described in detail as follows:

[0018] In step S101, static data testing is performed on the batteries to be tested, and batteries that fail to meet the standard are eliminated;

[0019] In step S102, a dynamic data test is performed on the standard battery cell;

[0020] In step S103 , according to the data of the static data test and the dynamic data test, the cells are screened for matching.

[0021] figure 2 The implementation pr...

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Abstract

The invention is applicable to the field of batteries and provides a matching method for lithium ion power batteries. The method comprises the following steps of: carrying out static data test on battery cells to be tested and removing nonstandard battery cells; carrying out dynamic data test on the standard battery cells; and screening and matching the battery cells according to data of the static data test and the dynamic data test. The matching method provided by the invention has the advantages that the power battery cells with good consistency are screened by combining with the data of the static data test and the dynamic data test of the battery cells, so that the matching efficiency of high-voltage and high-capacity battery packs which are assembled into groups is increased, and the actual service life of the battery pack is prolonged.

Description

technical field [0001] The invention belongs to the field of batteries, in particular to a lithium-ion power battery assembly method. Background technique [0002] In the existing technology, due to the differences in the manufacturing process, process, material system, temperature environment, degree of automation, personnel operation and other factors of the battery cells, many parameters of the same batch of batteries often have a certain degree of difference. When multiple structures of battery cells are used in series and parallel to meet the technical requirements of high capacity, high voltage, and high power of the battery pack, this difference will be amplified, resulting in a decrease in the efficiency of the battery pack after series and parallel connection, or even a sharp deterioration. [0003] At present, during the grouping process of lithium-ion power batteries, most of them are in a static shelving state, and a certain grouping standard is determined throug...

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Application Information

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IPC IPC(8): H01M10/42
CPCY02E60/12Y02E60/10
Inventor 崔鹏胡广剑涂继军陈宏
Owner SHENZHEN CENT POWER TECH
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