Lead-acid battery open circuit failure test system and prediction method

A technology for lead-acid batteries and batteries, which is applied in the field of battery testing, and can solve the problems of being unable to predict the reliable service life of lead-acid batteries, and achieve the effects of shortening the test time, speeding up the speed, and increasing the ambient temperature

Active Publication Date: 2020-12-08
CHINA ELECTRIC POWER RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] In view of this, the present invention proposes a lead-acid battery open-circuit failure test system and a prediction method, aiming at solving the problem that the prior art cannot predict the reliable service life of the lead-acid battery under the floating state

Method used

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  • Lead-acid battery open circuit failure test system and prediction method
  • Lead-acid battery open circuit failure test system and prediction method
  • Lead-acid battery open circuit failure test system and prediction method

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Embodiment 1

[0039] refer to figure 1 As shown, it is a schematic diagram of the first structure of the lead-acid battery open-circuit failure test system provided by the embodiment of the present invention. The lead-acid battery open-circuit failure test system provided in this embodiment includes: a lead-acid battery high-temperature accelerated corrosion subsystem 100 and a lead-acid battery room temperature charging and discharging subsystem 200 . The lead-acid battery high temperature accelerated corrosion subsystem 100 is used to continuously float-charge the lead-acid battery pack in a high-temperature environment, and accelerate the internal corrosion speed of the lead-acid battery during floating charging by increasing the ambient temperature, including the high-temperature test chamber 5 and the floating battery. charging device6. The charge and discharge subsystem 200 of the lead-acid battery at room temperature includes a constant current discharge load 11, a charging device 1...

Embodiment 2

[0054] refer to image 3 , which is a schematic flow chart of the first method for predicting the open circuit failure of the lead-acid battery provided by the embodiment of the present invention. The process of the method for predicting the open-circuit failure of the lead-acid battery provided in this embodiment is divided into: step 1, step 2 and step 3.

[0055] Among them, in step 1, the lead-acid battery pack is continuously floated and charged in a high temperature environment; in step 2, the lead-acid battery pack is discharged at a constant current and fully charged in a normal temperature environment; The second open circuit verification battery is discharged with a large current in a normal temperature environment and judges whether it is open circuit.

[0056] In the process of the lead-acid battery open-circuit failure prediction method, the cycle consisting of step 1 and step 2 is repeated until the number of cycles is n xh Reach the preset number of cycles n ...

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Abstract

The invention provides a lead acid storage battery open failure test system and prediction method. The lead acid storage battery open failure test system comprises a lead acid storage battery high temperature accelerated corrosion subsystem and a lead acid storage battery normal temperature charge and discharge subsystem. The lead acid storage battery high temperature accelerated corrosion subsystem is used for performing constant floating charging to the lead acid storage battery pack under the high temperature environment and comprises a high temperature test box, a floating charging deviceand a storage battery monitoring device. The a lead acid storage battery normal temperature charge and discharge subsystem is used for performing the discharge or charge test on the lead acid storagebattery pack or the open verification storage battery under the normal temperature environment and comprises a constant current discharge load, a charging device and a high current discharge load. Compared with the systems and the methods in the prior art, the lead acid storage battery open failure test system and prediction method have the beneficial effects that the reliable service life of thelead acid storage battery before open failure caused by internal corrosion under the condition of constant floating charging under the normal temperature environment can be predicted.

Description

technical field [0001] The invention relates to the technical field of battery testing, in particular to a lead-acid battery open-circuit failure test system and a prediction method. Background technique [0002] At present, in the field of electric power, valve-regulated lead-acid batteries are backup power sources for relay protection, automatic devices and comprehensive monitoring systems. Station) lost power, and the scope of the accident was further expanded. However, when the lead-acid battery continues to run on floating charge and the internal corrosion leads to an open circuit, the backup power supply is useless and cannot provide the backup guarantee it deserves. Therefore, lead-acid battery corrosion open circuit has become one of the most concerned quality issues in the power field. A test system and a pre-judgment method are needed to determine the reliable service life of lead-acid battery before corrosion open circuit leads to lead-acid battery failure. [0...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/379G01R31/392G01R31/388G01R31/389G01R31/396
CPCG01R31/379
Inventor 赵梦欣李鹏解晓东韩文德余伟成冯亮高文婷袁洪涛李向阳郭媛媛田阳劳斯佳吴光耀
Owner CHINA ELECTRIC POWER RES INST
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