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Battery parameter measurement method, device, equipment, medium and program product

A battery parameter and measurement method technology, which is applied in the direction of measuring devices, measuring electricity, and measuring electrical variables, etc., can solve potential interference, inaccurate measurement results of proton exchange membrane fuel cell parameters, and inability to obtain AC impedance spectra of proton exchange membrane fuel cells Information and other issues to achieve the effect of improving accuracy and avoiding potential interference

Pending Publication Date: 2022-05-20
TSINGHUA UNIV
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Problems solved by technology

[0005] However, the current electrochemical measurement cannot obtain the complete AC impedance spectrum information of the proton exchange membrane fuel cell, and the potential interference between the measuring instrument and the proton exchange membrane fuel cell is easy to occur, which leads to inaccurate measurement results of the proton exchange membrane fuel cell parameters

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  • Battery parameter measurement method, device, equipment, medium and program product
  • Battery parameter measurement method, device, equipment, medium and program product
  • Battery parameter measurement method, device, equipment, medium and program product

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Embodiment Construction

[0046] In order to make the purpose, technical solutions and advantages of the present application more clearly understood, the present application will be described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application.

[0047] The battery parameter measurement methods provided in the embodiments of the present application can be applied to, for example, figure 1 in the application environment shown. Among them, the electrochemical measuring instrument 104 is used to measure the AC impedance spectrum of the PEM fuel cell; the terminal 102 can be, but not limited to, various personal computers, notebook computers, smart phones, tablet computers, etc. The AC impedance spectrum was analyzed to determine the parameters of the proton exchange membrane fuel cell. Wherein, the terminal 102 ...

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Abstract

The invention relates to a battery parameter measuring method, device and equipment, a medium and a program product. The method comprises the following steps: acquiring an alternating-current impedance spectrum of the proton exchange membrane fuel cell through an electrochemical measurement instrument by adopting a floating measurement method; fitting the impedance of the equivalent circuit with the alternating current impedance spectrum of the proton exchange membrane fuel cell, and determining the target impedance of the equivalent circuit; and calculating the parameters of the battery according to the target circuit parameters corresponding to the target impedance of the equivalent circuit. By adopting the method, the complete alternating-current impedance spectrum of the proton exchange membrane fuel cell can be obtained, potential interference between an electrochemical measuring instrument and the proton exchange membrane fuel cell can be avoided, and the accuracy of parameter measurement of the proton exchange membrane fuel cell is improved.

Description

technical field [0001] The present application relates to the field of battery technology, and in particular, to a battery parameter measurement method, device, device, medium and program product. Background technique [0002] Proton exchange membrane fuel cell (PEMFC) is a kind of high-efficiency energy that converts chemical energy in fuel and oxidant into electrical energy by direct electrochemical reaction with hydrogen as the optimal fuel without combustion process. Conversion power generation device. The proton exchange membrane fuel cell has the characteristics of high efficiency and low emission. It is a new energy source and is widely used in the market. Among them, proton exchange membrane fuel cells are mainly used in automotive power systems. [0003] Proton exchange membrane fuel cells are currently facing a critical stage of development to reduce costs and increase battery life. It is the core technology to complete the online battery evaluation by dynamical...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/385G01R31/389
CPCG01R31/385G01R31/389
Inventor 郭建伟王建龙
Owner TSINGHUA UNIV
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