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Characteristic testing method and device applied to different aging stages of super capacitors

A technology for supercapacitor and characteristic testing, applied in measuring devices, instruments, measuring electricity, etc., can solve the problems of uneven temperature distribution of modules, large life deviation, inconsistent performance of supercapacitor cells, etc., to avoid uncertainty, The effect of reducing impact and improving power quality

Active Publication Date: 2015-01-21
智车上海实业有限公司
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AI Technical Summary

Problems solved by technology

[0005] In large-scale energy storage occasions, many factors such as series-parallel connection of a large number of monomers, high frequency of use, complex dynamic conditions in practical applications, and uneven temperature distribution of modules will inevitably lead to inconsistent performance of supercapacitor monomers, and their lifespan It also deviates greatly from the test results in the ideal working environment of the laboratory
[0006] Within the scope of the published literature at home and abroad, although supercapacitors are current research hotspots, they mainly focus on the production process, preparation methods and material selection of supercapacitors themselves, involving different aging of supercapacitors in large-scale energy storage systems. There are few literature reports on the characteristic test method of stage

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  • Characteristic testing method and device applied to different aging stages of super capacitors
  • Characteristic testing method and device applied to different aging stages of super capacitors

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Embodiment Construction

[0033] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0034] like figure 1 Shown, a kind of characteristic test method of supercapacitor different aging stages, comprises the following steps:

[0035] Step 101. At the beginning of the aging life test, first perform a pre-test, including size, weight measurement, and standard charging and discharging. The standard charging and discharging needs to follow the charging and discharging steps provided by the capacitor manufacturer. If the manufacturer fails to provide it, use it with reference to the standard 5C rate for full charge and discharge, without constant voltage or rest time;

[0036] The standard charge and discharge needs to complete multiple groups continuously. When the parameters obtained by two consecutive sets of standard charge and discharge data are stable (the parameter change is not more than ±2%, it is defined as stable), then ...

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Abstract

The invention relates to a characteristic testing method and device applied to different aging stages of super capacitors. The method includes the steps such as pre-testing, characteristic testing, temperature adjustment, temperature standing and aging testing. The device comprises power grid input, a power conversion device, a transitional super capacitor, a DC / DC converter, a temperature control box, a tested super capacitor and a host computer. Compared with the prior art, the characteristic testing method and device of the invention have advantages of a wide covering range, small characteristic influence, highly targeted performance, short consumed time and the like.

Description

technical field [0001] The invention relates to a method and a device for testing the characteristics of a supercapacitor, in particular to a method and a device for testing the characteristics of a supercapacitor in different aging stages. Background technique [0002] New energy power generation technologies represented by clean energy such as solar energy and wind energy are developing rapidly, and the key to realizing the effective use of such unstable energy is large-scale energy storage technology. [0003] The energy density of supercapacitors is higher than that of traditional capacitors, and the power density is much higher than that of batteries. In addition, it has the outstanding characteristics of high-efficiency charge and discharge, wide range of operating temperature, and long-life cycles, which are very suitable for large-scale energy storage applications. [0004] Due to the particularity of the field of large-scale energy storage, such as high voltage leve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00
Inventor 张逸成顾帅韦莉姚勇涛沈玉琢李万欣肖海山姚飞刘帅张佳佳詹地夫叶尚斌
Owner 智车上海实业有限公司
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