Battery screening method and device, computer storage medium and test system

A screening method and battery technology, applied in secondary batteries, measuring devices, charging/discharging of secondary batteries, etc., can solve the problems of consuming a lot of manpower, material resources, battery damage, affecting production efficiency, etc., and achieve the effect of improving production efficiency

Inactive Publication Date: 2019-11-05
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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AI Technical Summary

Problems solved by technology

At present, the manual screening method based on discharge capacity is widely used in the industry. On the one hand, this will consume a lot of manpower and material resources; on the other hand, due to the need to charge and discharge the battery many times, it may cause damage to the battery, and The screening process takes a long time and affects production efficiency

Method used

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  • Battery screening method and device, computer storage medium and test system
  • Battery screening method and device, computer storage medium and test system
  • Battery screening method and device, computer storage medium and test system

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Embodiment Construction

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It should be understood that the specific embodiments described here are only used to explain the related application, not to limit the application. It should also be noted that, for the convenience of description, only the parts related to the relevant application are shown in the drawings.

[0028] In an embodiment of the present application, see figure 1 , which shows a schematic flowchart of a battery screening method provided in the embodiment of the present application. Such as figure 1 As shown, the method may include:

[0029] S101: Charge the battery under test with a constant current according to the preset current, and determine the corresponding actual temperature change value of the battery under test during the formation process;

[0030] It should be noted t...

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Abstract

The invention discloses a battery screening method and device, a computer storage medium and a test system. The method comprises that a battery to be tested is charged in constant current according tothe present current, and a corresponding practical temperature change value in the formation process of the battery to be tested is determined; and the practical temperature change value is comparedwith a preset temperature range to determine whether the battery to be tested is qualified. The preset temperature range is determined on the basis of temperature change values corresponding to samplebatteries with the same nominal capacity in the formation process.

Description

technical field [0001] The present application relates to the field of battery technology, in particular to a battery screening method, device, computer storage medium and testing system. Background technique [0002] With the development of battery technology, lithium-ion batteries have been widely used in photovoltaic energy storage, power vehicles, and digital products due to their characteristics of high power, long service life, wide working range, and weak impact on the ecological environment. [0003] In general, after the formation of lithium-ion batteries, a voltage test is required to screen out defective products. At present, the manual screening method based on discharge capacity is widely used in the industry. On the one hand, this will consume a lot of manpower and material resources; on the other hand, due to the need to charge and discharge the battery many times, it may cause damage to the battery, and The screening process takes a long time and affects pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/385H01M10/44
CPCG01R31/3865H01M10/446Y02E60/10
Inventor 谢红斌张加亮张俊
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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