Method for detecting life of battery performing fast charging cycling

A technology of fast charging and cycle life, applied in the direction of measuring electricity, measuring devices, measuring electrical variables, etc., can solve the problems of low efficiency, long cycle, and inability to meet actual production needs, and achieve the effect of speeding up the detection rate and shortening the detection cycle

Active Publication Date: 2016-12-07
ANHUI HONGDA ELECTRICAL SOURCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to reflect the characteristics of fast charging of lead-carbon batteries and explore the practical application of fast charging of lead-carbon batteries in the field of electric vehicles, it is necessary to test the performance of the batteries. The original battery test method (100% DOD detection) detection period is too long , generally only 1.8-2.0 cycles can be achieved in 24 hours, the efficiency is relatively low, it cannot meet the actual production needs, and it cannot reflect the characteristics of a fast-chargeable battery

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  • Method for detecting life of battery performing fast charging cycling

Examples

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Effect test

Embodiment 1

[0024] A battery fast charging cycle life detection method, the specific method steps are as follows:

[0025] (1) Under the ambient temperature of 25±3°C, the lead-acid battery should be charged conventionally, and then discharged for conventional capacity inspection;

[0026] (2) Charge the lead-acid battery after discharging in step (1) with high current and constant voltage for about 1 hour, then let it stand for 10-15 minutes, and then discharge it through capacity inspection;

[0027] (3) After 49 charge and discharge cycles in step (2), perform a regular charge with a small current and constant voltage for a long time, and then continue to carry out capacity inspection and discharge to detect the 2hr capacity of the battery in the normal charge state. So far, it is a set of 50 Second cycle, when a group of cycles is completed, then start the next group of cycle tests from step (2) until the battery life is terminated.

[0028] After step (2) high current and constant v...

Embodiment 2

[0036] A battery fast charging cycle life detection method, the specific cycle process parameters are as follows:

[0037]

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Abstract

The invention discloses a method for detecting life of a battery performing fast charging cycling. The method comprises: a battery performs complete charging under environment temperature of 25+ / -3 DEG; a regular capacity check discharging is performed on the battery which finishes full charging and discharging and then the battery is charged with big current for about 1 hour under constant voltage or then is charged with small current for 1 hour under relatively low constant voltage (or omit the second step); the battery is then in a stationery state for 10-15 minutes and then performs a next charge-discharge cycle; after 49 times of charge-discharge cycles, long time small current constant voltage full charging is performed on the battery; capacity check discharging is then continued in order to detect 2hr capacity of the battery under a normal charging state; 50 times of cycling is defined as a set; when one set of cycling is finished, the next set of cycling tests is performed until the service life of the battery is ended.

Description

technical field [0001] The invention relates to the technical field of lead-acid batteries, in particular to a method for detecting the battery fast charging cycle life. Background technique [0002] At present, the lead-acid battery market for electric vehicles is increasingly saturated, and competition and price wars are extremely fierce. However, national policies have marginalized lead-acid batteries and vigorously supported the application of lithium batteries in electric vehicles. The survival of lead-acid battery manufacturers is facing difficulties. It is an unprecedented crisis, but if the specific energy of lead-acid batteries can be improved, the charging efficiency can be improved, and the service life can be extended, plus the advantages of lead-acid batteries compared to lithium batteries in terms of rich resources, high cost performance, recyclability, and safety, etc., then Lead-acid batteries still have room to survive. [0003] At present, the development ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/36
CPCG01R31/392
Inventor 上官巍立
Owner ANHUI HONGDA ELECTRICAL SOURCE
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