Battery repairing method and device and battery repairing system

A battery and a technology to be repaired, which is applied in the direction of secondary battery charging/discharging, secondary battery repair/maintenance, secondary battery, etc., and can solve the problem of high battery self-discharge rate

CN113178626APending Publication Date: 2021-07-27HEBEI YINLONG NEW ENERGY +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2021-07-27

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Abstract

The invention provides a battery repairing method and device and a battery repairing system, and the method comprises the steps: a to-be-repaired battery is controlled to enter a constant-temperature environment at a preset temperature, wherein the preset temperature is higher than normal temperature; the charging and discharging equipment is controlled to execute a first charging and discharging process on the to-be-repaired battery until a preset number of times, and the first charging and discharging process comprises a charging process and a first discharging process which are executed in sequence; the charging and discharging equipment is controlled to execute a second charging and discharging process on the to-be-repaired battery till the preset number of times, and the second charging and discharging process comprises the charging process and the second discharging process which are executed in sequence; and the charging and discharging equipment is controlled to charge the to-be-repaired battery to a rated capacity according to a first preset multiplying power constant current. According to the repairing method, the self-discharge rate of the to-be-repaired battery is reduced, and the problem of high self-discharge rate of the battery in the prior art is solved.
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Description

technical field

[0001] The present application relates to the technical field of battery repair, and in particular, relates to a battery repair method, a repair device, a computer-readable storage medium, a processor, and a battery repair system. Background technique

[0002] In the current production of batteries, the quality requirements of batteries are getting higher and higher. As a kind of energy storage unit, the battery's charge retention ability is very important. In the production of batteries, due to the influence of factors such as the environment, personnel operation, and incoming materials, there will be batteries that self-discharge too fast, which will affect the performance of the battery. This type of battery occupies a certain proportion in the production of the battery, which increases the production cost of the battery.

[0003] The above information disclosed in the Background section is only to enhance the understanding of the background of the techno...

Examples

Embodiment 1

[0059] Conduct self-discharge test on 20 batteries to be repaired; control 20 batteries to be repaired into a constant temperature environment of 45°C; control charging and discharging equipment to perform the first charging and discharging process on the above-mentioned batteries to be repaired, until 3 times, the above-mentioned first charging and discharging process Including sequentially executing the charging process and the first discharging process, the above charging process is to charge the battery to be repaired with a constant current at a rate of 1C to the charge cut-off voltage, and the first discharge process is to discharge the battery to be repaired with a constant current at a rate of 2C to discharge cut-off voltage; control the charging and discharging equipment to perform the second charging and discharging process on the battery to be repaired until the above three times, the second charging and discharging process includes sequentially executing the charging...