Peak pulse current test method of battery, electronic equipment and storage medium

By performing current testing for multiple pulse durations based on the initial test current under the target test temperature and remaining charge of the lithium-ion battery, and by using voltage differences to predict and correct the shelving cutoff voltage, the problem of slow speed and low accuracy in existing testing methods is solved, and efficient and accurate peak pulse current testing is achieved.

CN121955490APending Publication Date: 2026-05-01HUIZHOU EVE POWER CO LTD
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Patent Information

Application Number
CN202512004400.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-26
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing peak pulse current testing methods for lithium-ion batteries are slow, inaccurate, and subject to large deviations due to temperature variations under testing conditions, making it difficult to achieve efficient and accurate current testing.

Method used

By performing current tests for multiple pulse durations based on the initial test current under the target test temperature and remaining charge, the test current for the next pulse duration is predicted using the difference between the initial test current and voltage, and the set-off voltage is corrected, thus achieving automated testing.

Benefits of technology

It improves the accuracy and efficiency of battery peak pulse current testing, reduces test interruptions and human intervention, and increases the degree of automation in testing.

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Abstract

The invention discloses a peak pulse current testing method of a battery, electronic equipment and a storage medium. The peak pulse current testing method comprises the following steps: acquiring charging or discharging pulse time and initial testing current of a to-be-tested battery, and at least one target testing temperature and at least one target residual electric quantity; and under the condition that the to-be-tested battery is at the target test temperature and the target residual electric quantity, based on the initial test current, current tests of multiple pulse times are carried out on the to-be-tested battery, and peak pulse current of the to-be-tested battery at the target test temperature and the target residual electric quantity is obtained.
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