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Grouping method of recycling power battery for reuse

A power battery and voltage technology, which is applied in the field of grouping for recycling power batteries and reuse, can solve the problems of not considering battery attenuation, affecting the accuracy and reliability of grouping, and achieve the effect of improving accuracy and reliability

Inactive Publication Date: 2019-07-26
深圳市瑞恩维思新能源科技有限公司
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Problems solved by technology

[0005] The existing grouping method for recycling power batteries is mainly based on capacity and internal resistance, but does not take into account the different degrees of attenuation caused by the battery in the early cycle process, so that it cannot effectively select batteries with the same attenuation degree. Matching groups are reused, which affects the accuracy and reliability of matching groups

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  • Grouping method of recycling power battery for reuse
  • Grouping method of recycling power battery for reuse
  • Grouping method of recycling power battery for reuse

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Embodiment Construction

[0027] In order to make the objectives, technical solutions and beneficial technical effects of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described implementation Examples are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intend...

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Abstract

A method for reusing recycled power batteries includes: establishing a database; measuring the voltage and internal resistance of the recycled power batteries, and selecting the recycled power batteries whose voltage and internal resistance are within a preset range; Perform charge and discharge detection to obtain the capacity of the recovered power battery and the corresponding relationship between the charging state and voltage during charging, and select the recovered power battery with a capacity within the preset range; and select the selected recovered power battery. The corresponding relationship with the voltage is matched with the corresponding relationship between the state of charge and the voltage of the power battery during charging in different cycles in the database, and the recovered batteries whose corresponding relationship between the state of charge and the voltage during charging is within a preset range are selected for grouping. . The above-mentioned matching method for recycling power batteries can be matched according to the attenuation degree of the recovered power batteries, thereby improving the accuracy and reliability of the matching.

Description

[0001] 【Technical field】 [0002] The invention relates to the technical field of batteries, in particular to a grouping method for recovering and reusing power batteries. [0003] 【Background technique】 [0004] With the comprehensive and rapid development of new energy vehicles, the number of power batteries used will be very large, and the number of recycled power batteries will also be amazing. Since these recovered power batteries still have about 80% of their initial capacity, they are not suitable for being scrapped directly to cause a waste of resources. Instead, they can be regenerated step by step in fields such as energy storage and UPS that have relatively low requirements for battery usage. use. [0005] The existing grouping method of recycling power batteries is mainly based on capacity and internal resistance, but it does not take into account the different degrees of attenuation caused by the battery in the early cycle process, so it cannot effectively select ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/04H01M10/54
CPCH01M10/0404H01M10/54Y02W30/84Y02P70/50
Inventor 孟江波鄞瑞阳匡丹
Owner 深圳市瑞恩维思新能源科技有限公司
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