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Battery lithium precipitation detection method, battery, terminal equipment and storage medium

A detection method and technology of terminal equipment, applied in the field of terminal equipment and storage medium, battery, battery lithium deposition detection method, can solve problems such as dangerous accidents, battery capacity attenuation, battery short circuit, etc., to ensure safe work and simple implementation process. Effect

Pending Publication Date: 2020-12-01
DONGGUAN POWERAMP TECH LTD
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Problems solved by technology

For example, because part of the precipitated lithium metal cannot be oxidized into lithium ions during discharge, the capacity of the battery will be attenuated; for another example, the precipitated lithium metal may form dendrites, and the continuous growth of the dendrites may pierce the separator, resulting in internal discharge of the battery. short circuit, causing dangerous accident

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  • Battery lithium precipitation detection method, battery, terminal equipment and storage medium
  • Battery lithium precipitation detection method, battery, terminal equipment and storage medium
  • Battery lithium precipitation detection method, battery, terminal equipment and storage medium

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Embodiment Construction

[0052] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, not to limit the present application. 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.

[0053] It is further to be noted that in this document, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements , but also includes other elements not expressly listed, or also includes elements inherent in such a process, m...

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Abstract

The invention discloses a battery lithium precipitation detection method. The method comprises the following steps that: the working state of a battery is detected; when the working state of the battery enters a standing state, the voltage of the battery is collected as a first voltage; after the battery stands for a preset duration, the voltage of the battery is collected as a second voltage; andwhether lithium precipitation occurs in the battery or not is judged according to the first voltage and the second voltage. The invention further provides a battery, terminal equipment and a storagemedium. With the battery lithium precipitation detection method, battery, terminal equipment and storage medium of the invention adopted, the lithium precipitation condition of the battery can be detected in real time, and the protection mechanism of the battery is triggered in time when lithium precipitation occurs to the battery, and therefore, safe operation of the battery can be ensured.

Description

technical field [0001] The present application relates to the technical field of batteries, and in particular to a battery lithium analysis detection method, a battery, a terminal device and a storage medium. Background technique [0002] Rechargeable batteries have been widely used in various portable electronic products and electric vehicles, which have the advantages of high energy density and long cycle life. At present, the phenomenon of lithium precipitation occurs during the use of the rechargeable battery, and the phenomenon of lithium precipitation has a great impact on the service life and safety of the rechargeable battery. For example, because part of the precipitated lithium metal cannot be oxidized into lithium ions during discharge, the battery capacity will be attenuated; for another example, the precipitated lithium metal may form dendrites, and the continuous growth of dendrites may pierce the separator, resulting in internal discharge of the battery. shor...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/3842H01M10/42
CPCG01R31/3842H01M10/4285H01M10/48Y02E60/10H02J7/0069H02J7/0029H01M2010/4271H01M10/425H02J7/00302H02J7/00306
Inventor 杨超刘雪峰罗建昌陈锦辉汪颖陈光辉卞春花
Owner DONGGUAN POWERAMP TECH LTD
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