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Battery assembly method, device and equipment

A battery assembly and cell technology, applied in the field of power supply, can solve the problems of unqualified dynamic pressure difference of the cell, and achieve the effects of improving service life, reducing dynamic pressure difference, and reducing defect rate

Active Publication Date: 2020-12-22
YINLONG ENERGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the applicant found that even through strict control of the production or assembly process and strict screening tests and experiments, after assembly, the dynamic voltage difference of the battery cells still failed after testing.

Method used

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  • Battery assembly method, device and equipment
  • Battery assembly method, device and equipment

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Embodiment Construction

[0022] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. 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.

[0023] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically or electrically connected; it can be directly connected, or indirectly connected through an intermediary, or it can be the internal communication of two components, which can b...

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Abstract

The embodiment of the present invention discloses a battery assembly method, device, and equipment, wherein the method includes: performing a load dynamic differential pressure test on the assembled batteries; when the measured dynamic differential pressure is greater than or equal to a preset threshold , regroup the cells, and return to the step of performing a dynamic voltage drop test on the grouped cells until the measured dynamic voltage difference is less than the preset threshold, and then replace the currently grouped cells The core is welded. The real reason for the poor dynamic pressure difference can be found before assembly. By rationally arranging the cells and reducing the dynamic pressure difference of the cells, the defective rate of the battery pack can be greatly reduced, the production cost can be saved, and the service life of the battery pack can be improved. .

Description

technical field [0001] The invention relates to the technical field of power supplies, in particular to a battery assembly method, device and equipment. Background technique [0002] At present, the application of batteries is becoming more and more extensive, and the consumption is increasing. Usually, a single battery is difficult to meet the actual needs, and it is necessary to use multiple strings of batteries to meet their usage requirements. For example, laptop batteries usually use 2-4 String, multi-parallel battery packs, as the battery packs assembled from multiple cells are used more and more widely, the life of the battery packs is especially concerned by people. [0003] Since the battery pack includes multiple batteries, after the battery pack is assembled, the voltage difference of the battery cells often appears too large. If it is not restrained, it may directly lead to the short life of the battery pack. In order to reduce the voltage difference of the batt...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/396G01R31/385H01M10/04
CPCG01R31/3865H01M10/0404Y02P70/50
Inventor 曾龙贵
Owner YINLONG ENERGY CO LTD