Method for evaluating life of space hydrogen-nickel storage batteries

A technology for life evaluation and storage battery, applied in the direction of measuring electricity, measuring electrical variables, measuring devices, etc., can solve the problems of multiple manpower, material resources, financial resources, etc., and achieve the effect of improving design efficiency, convenient operation, and easy detection.

Inactive Publication Date: 2012-06-27
CHINA ELECTRONIC TECH GRP CORP NO 18 RES INST
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Problems solved by technology

It is usually obtained by shortening the time and increasing the charge and discharge current and other quick tests. This method concentrate

Method used

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  • Method for evaluating life of space hydrogen-nickel storage batteries
  • Method for evaluating life of space hydrogen-nickel storage batteries
  • Method for evaluating life of space hydrogen-nickel storage batteries

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Embodiment 1

[0033] The life evaluation method of the nickel-hydrogen battery for space, the process includes: select the same kind of nickel-hydrogen battery, conduct the charge-discharge cycle life test at the ambient temperature of -5°C ~ +5°C, and detect the discharge capacity of the nickel-hydrogen battery in each charge-discharge cycle, Calculate the discharge depth of the nickel-hydrogen battery, and fit the mathematical model for the life prediction of the nickel-hydrogen battery. The mathematical model is the relationship curve of the discharge depth of the nickel-hydrogen battery corresponding to the cycle life obtained by the fitting simulation method. ; Then use the mathematical model to predict and evaluate the life of this kind of nickel-hydrogen storage battery.

[0034] Evaluation includes: 1. Select 2-6 batches of nickel-hydrogen batteries of the same design, 2-3 batteries in each batch, and conduct cycle life tests at different discharge depths at ambient temperatures of -...

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Abstract

The invention relates to a method for evaluating the life of space hydrogen-nickel storage batteries, and belongs to the technical field of hydrogen-nickel storage batteries. The method for evaluating the life of the space hydrogen-nickel storage batteries is characterized by comprising the following steps of: selecting similar hydrogen-nickel storage batteries, performing a charge-discharge cycle life test at the ambient temperature of between -5 and +5 DEG C, detecting the discharge capacity of the hydrogen-nickel storage batteries in each charge-discharge cycle, calculating the discharge depth of the hydrogen-nickel storage batteries, fitting to obtain a hydrogen-nickel storage battery life prediction mathematical model, and predicting and evaluating the life of the hydrogen-nickel storage batteries by using the mathematical model. The method has the advantages that: the method is simple, is convenient to operate, and is high-efficiency and quick, data is accurate, the life is easy to detect, and the like, the cycle life of the hydrogen-nickel storage batteries under the design discharge depth can be quickly predicted, design efficiency is improved, and the research and development of track hydrogen-nickel storage batteries are facilitated.

Description

technical field [0001] The invention belongs to the technical field of nickel-hydrogen storage batteries, in particular to a method for evaluating the service life of nickel-hydrogen storage batteries for space use. Background technique [0002] At present, there is no report on the rapid evaluation method for the life of nickel-hydrogen nickel batteries used in low orbit. Generally, nickel-hydrogen batteries for space use different discharge depths, and their lifespans are different due to different discharge depths. In order to obtain the designed maximum cycle life, it is necessary to obtain appropriate discharge depth data. It is usually obtained by rapid test methods such as shortening the time and increasing the charge and discharge current. This method concentrates the stress on the battery and the assessment process is real, but it takes up more manpower, material resources, and financial resources. Contents of the invention [0003] In order to solve the technica...

Claims

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Application Information

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IPC IPC(8): G01R31/36
Inventor 周亦龙庞辉王淼张海昌明文成任学颖樊红敏王树强
Owner CHINA ELECTRONIC TECH GRP CORP NO 18 RES INST
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