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Testing method for voltage increasing rate and decreasing rate of battery pack

A voltage rise and test method technology, applied in the direction of measuring current/voltage, measuring electricity, measuring devices, etc., can solve problems affecting battery performance, etc., and achieve the effect of improving efficiency and reducing costs

Inactive Publication Date: 2012-07-18
毛广甫
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the test of the rising rate and falling rate of the voltage of the battery pack during the charging and discharging process has not been paid attention to. The rising rate and falling rate of the battery pack voltage are important indicators for judging the qualification of the battery, which will directly affect the performance of the battery in use.
However, there is currently no method that can directly judge whether the rising rate and falling rate of the battery pack voltage are qualified.

Method used

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  • Testing method for voltage increasing rate and decreasing rate of battery pack
  • Testing method for voltage increasing rate and decreasing rate of battery pack
  • Testing method for voltage increasing rate and decreasing rate of battery pack

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Embodiment Construction

[0014] Below in conjunction with embodiment the present invention is further described.

[0015] A method for testing battery pack voltage rise rate and drop rate, comprising the following steps:

[0016] A. Prepare data processing device and battery pack comprehensive test device. The battery pack comprehensive test device includes charge and discharge machine CDS, acousto-optic display unit, communication unit module GGS, relay contact unit, multi-temperature voltage acquisition module MTVS;

[0017] The charging and discharging machine CDS can complete the charging and discharging function of the battery pack, test whether the charging and discharging function of the battery pack is normal, and can read the basic information of the battery pack in the charging and discharging state, such as: charging voltage and discharging voltage, charging current and Discharge current, capacity, etc.;

[0018] The communication unit module GGS is responsible for the data communication b...

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Abstract

The invention relates to the technology of battery testing, particularly to a testing method for voltage increasing rate and decreasing rate of a battery pack, which includes the following steps: a data processing device and a battery pack comprehensive test device are prepared; the data processing device transmits a test command to the battery pack comprehensive test device; within the time T, the CDS in the battery pack comprehensive test device charges the battery pack in constant current, and the voltage is increased for plus Delta V; at the same time, within the time T, the CDS discharges the battery pack in constant current, and the voltage is decreased for minus Delta V; the data processing device compares the read plus Delta V voltage value with the set reference value and compares the read minus Delta V voltage value with the set reference value, so as to judge whether the voltage increasing rate and the voltage decreasing rate are normal according to the comparison results. The testing method can easily judge whether the voltage increasing rate and the voltage decreasing rate during the production process of the battery pack are normal, so as to greatly improve the later-stage actual production and application efficiency, and reduce the cost.

Description

technical field [0001] The invention relates to battery testing technology. Background technique [0002] In the field of battery testing, battery testing mainly focuses on the detection of battery endurance and electrochemical performance when the environment is abnormal. At present, the detection of electrochemical performance mainly focuses on the detection of some common and easy-to-find functional and performance problems. For example: battery pack charging process, battery pack discharge process, battery pack overcharge, battery pack over discharge, external short circuit, low voltage protection, battery pack internal resistance, etc. However, the test of the rising rate and falling rate of the voltage of the battery pack during the charging and discharging process has not been paid attention to. The rising rate and falling rate of the battery pack voltage are important indicators for judging the qualification of the battery, which will directly affect the performance...

Claims

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Application Information

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IPC IPC(8): G01R31/36G01R19/165
Inventor 毛广甫
Owner 毛广甫
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