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Battery performance detection method and system

A battery performance and detection method technology, applied in the direction of measuring electricity, measuring devices, measuring electrical variables, etc., can solve the problems of cumbersome steps, heavy workload, high time and labor costs, and achieve simplified acquisition steps and accurate and accurate evaluation methods Detection effect

Active Publication Date: 2018-12-07
NIO ANHUI HLDG CO LTD
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Problems solved by technology

[0003] However, the performance and status of batteries decommissioned from the vehicle end are uneven, so strict screening and classification are required to ensure the availability and reliability of batteries in the process of battery reuse
[0004] At present, the performance and health status of decommissioned batteries are mainly detected by professional battery testing equipment to charge and discharge decommissioned batteries one by one, and then collect key parameters such as battery capacity, internal resistance, and voltage drop for analysis and evaluation. This method is cumbersome. , heavy workload, high time and labor costs, reducing the economy of battery reuse

Method used

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Embodiment Construction

[0021] In the following description, specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that embodiments of the invention may be practiced without these specific details. In the present invention, specific numerical references such as "first element", "second means" and the like may be made. However, specific numerical references should not be construed as necessarily obeying their literal order, but rather that "first element" is different from "second element".

[0022] The specific details set forth herein are exemplary only, and the specific details may vary while remaining within the spirit and scope of the invention. The term "coupled" is defined to mean either directly connected to a component or indirectly connected to a component via another component.

[0023] Preferred embodiments of methods, systems and devices adapted to implement the present invention are ...

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Abstract

The invention relates to a battery performance detection method and system. The method comprises that a battery performance attenuation model is established; correspondence between at least two different parameters during charging of a battery to be detected is obtained; and the correspondence matches the attenuation model to obtain a performance parameter of the battery to be detected. The methodis used to monitor the battery which is used practically in an electromobile end in real time, so that the retirement of the battery can be delayed when the performance is high and can be advanced when the performance is not satisfied.

Description

technical field [0001] The invention relates to the technical field of electric vehicles, and more specifically, to a battery performance detection method and a battery performance detection system. Background technique [0002] With the rapid development of the electric vehicle industry, the number of electric vehicles continues to rise. Usually, the battery life of electric vehicles is 5-8 years, and the capacity of some retired batteries may still have 70-80%, which still has a high value of use. The reuse of retired batteries is very important for reducing battery costs and saving resources. is of great significance. [0003] However, the performance and status of the batteries decommissioned from the vehicle end are uneven, so strict screening and classification are required to ensure the availability and reliability of the batteries during the battery reuse process. [0004] At present, the performance and health status of decommissioned batteries are mainly detected...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/36
CPCG01R31/3648
Inventor 赵建智
Owner NIO ANHUI HLDG CO LTD
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