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Battery SOH detection method, device and system, medium and program product

A detection method and battery technology, applied in the direction of measuring devices, measuring electricity, measuring electrical variables, etc., to achieve the effects of improving efficiency, increasing service life, and avoiding damage

Pending Publication Date: 2021-10-08
BEIJING HYPERSTRONG TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

When the battery's ability to store power drops to a certain level, the battery is no longer suitable for electric vehicles (batteries with low storage capacity may cause battery life problems in electric vehicles, etc.)

Method used

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  • Battery SOH detection method, device and system, medium and program product
  • Battery SOH detection method, device and system, medium and program product
  • Battery SOH detection method, device and system, medium and program product

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Embodiment Construction

[0038] In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in this application will be clearly and completely described below in conjunction with the accompanying drawings in this application. Obviously, the described embodiments are part of the embodiments of this application , but not all examples. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0039] Different electrical devices have different requirements for the battery's ability to store power. Generally, the ability of a battery to store power can be represented by the SOH of the battery. The larger the SOH of the battery, the greater the capacity of the battery to store power. The smaller the SOH of the battery, the smaller the ability of the battery to store power. As an example, the requiremen...

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Abstract

The invention provides a battery SOH detection method, device and system, a medium and a program product. The method comprises the following steps: acquiring a first moment that the voltage of a target battery is equal to a first voltage threshold value and a second moment that the voltage of the target battery is equal to a second voltage threshold value from a target duration according to the voltages of the target battery at each acquisition moment within the target duration; according to the working condition of the target battery at the first moment and the working condition of the target battery at the second moment, acquiring the variation of the electric quantity of the target battery from the first moment to the second moment; and according to the variable quantity of the electric quantity and the mapping relationship between the variable quantity of the electric quantity and SOH, obtaining the healthy state SOH of the target battery, wherein the mapping relationship is obtained based on the working conditions of sample batteries which are in different SOH states and have the same type as the target battery between the first voltage threshold value and the second voltage threshold value. According to the invention, the SOH of the battery in the working process can be obtained in real time.

Description

technical field [0001] The present application relates to battery technology, in particular to a battery SOH detection method, device, system, medium and program product. Background technique [0002] As the battery life in electric vehicles increases, the battery's ability to store power gradually decreases. When the battery's ability to store power drops to a certain level, the battery is no longer suitable for electric vehicles (batteries with low storage capacity may cause battery life problems in electric vehicles, etc.). Therefore, it is necessary to replace the electric vehicle with a new battery so that the electric vehicle can work normally. The above-mentioned batteries that are no longer suitable for electric vehicles can be applied to electrical equipment that requires less battery storage capacity (such as electrical equipment in power grids, new energy power generation, and other scenarios) to realize the echelon of the battery's full life cycle use. [0003...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/392
CPCG01R31/392
Inventor 马昊吕喆王垒戚送送何志超钱昊
Owner BEIJING HYPERSTRONG TECH
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