Battery health state correction method and device, management system and storage medium

A technology for battery health status and health status, which is applied in battery circuit devices, circuit devices, and secondary battery repair/maintenance. performance, improved service life and safety

Active Publication Date: 2020-04-10
컨템포러리엠퍼렉스테크놀로지씨오리미티드
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the OCV-SOC curve changes with the aging of the battery, the estimated SOC has a large error, resulting in an inaccurate estimated SOH, and the reliability of SOH correction is low; in addition, some batteries have hysteresis effects ( That is, the char...

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  • Battery health state correction method and device, management system and storage medium
  • Battery health state correction method and device, management system and storage medium
  • Battery health state correction method and device, management system and storage medium

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Embodiment Construction

[0043] The present disclosure will be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the disclosure are illustrated. The technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of them. Based on the embodiments in the present disclosure, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present disclosure. The technical solutions of the present disclosure will be described in various aspects below in conjunction with various figures and embodiments.

[0044] The following "first", "second", etc. are only used to describe the difference, and have no other special meanings.

[0045...

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Abstract

The invention provides a battery health state correction method and device, a battery management system and a storage medium, and relates to the technical field of batteries. The method comprises thefollowing steps: judging whether the current voltage value of a battery cell is within a corrected OCV section of the battery cell, the corrected OCV section comprising at least one of a non-attenuated OCV section and a non-hysteretic OCV section; if so, taking the current voltage value of the battery cell as a correction voltage value; and obtaining an SOC correction value, and correcting the SOHof the battery cell. According to the method and device, a battery management system and a storage medium, when the voltage value of the battery cell is in the correction OCV section, the SOC is obtained and the SOH correction is carried out without being influenced by the hysteresis effect or changing along with the aging of the battery, so that the reliability of the SOH correction result is improved, the health degree of the battery can be accurately estimated, the service life of the battery is prolonged, and the use experience of a user is improved.

Description

technical field [0001] The present disclosure relates to the technical field of batteries, and in particular to a battery health state correction method, device, battery management system and storage medium. Background technique [0002] The State of Health (Stay Of Health, SOH) is an important parameter that reflects the performance and life of the battery. The SOH of the battery usually refers to the ratio of the capacity of the battery after aging to the capacity of the fresh battery. The battery will inevitably age or deteriorate during long-term use, resulting in a significant decrease in battery capacity. If the SOH is not corrected after the battery capacity decays, the calculation error of the battery's State of Charge (SOC) may increase. In addition, the When charging with the same charging current, the actual rate will be too high, and there will be problems such as the risk of overcurrent. [0003] At present, the commonly used detection method for battery SOH is...

Claims

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Application Information

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IPC IPC(8): G01R31/367
CPCY02E60/10G01R31/392H01M10/425H01M2010/4271H01M10/48H02J7/005H02J7/0049G01R31/3648
Inventor 杜明树李世超汤慎之卢艳华张伟
Owner 컨템포러리엠퍼렉스테크놀로지씨오리미티드
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