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Battery module comprising bus bar plate, battery pack comprising same, and electronic device

A battery module and bus bar technology, applied in the field of battery packs and electronic devices, can solve problems such as fire, product failure, and no high current, and achieve the effects of improving safety, reducing space, and being easy to fuse

Pending Publication Date: 2022-01-14
LG ENERGY SOLUTION LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, when a high current flows through some of the bus bars among the plurality of secondary batteries embedded in the battery module due to an electrical short between the secondary batteries, a product using the battery module may malfunction
A battery management system (BMS) can be used to interrupt this current, but when the BMS operates abnormally or incorrectly, there is no solution to deal with high current, resulting in failure or fire

Method used

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  • Battery module comprising bus bar plate, battery pack comprising same, and electronic device
  • Battery module comprising bus bar plate, battery pack comprising same, and electronic device
  • Battery module comprising bus bar plate, battery pack comprising same, and electronic device

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Embodiment Construction

[0060] Hereinafter, preferred embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. Before the description, it should be understood that the terms or words used in the specification and appended claims should not be construed as limited to the common and dictionary meanings, but should be defined according to allowing the inventor to properly define the terms to obtain the best The principles of interpretation are interpreted based on the meanings and concepts corresponding to the technical aspects of the present disclosure.

[0061] Therefore, the embodiments described herein and the illustrations shown in the drawings are only the most preferred embodiments of the present disclosure, rather than to fully describe the technical aspects of the present disclosure, so it should be understood that when filing an application, it may be Various other equivalents and modifications are made.

[0062] figure 1 is a schematic p...

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Abstract

A battery module according to the present invention comprises: a plurality of cylindrical battery cells each including a gas vent unit configured to discharge internal gas; and a bus bar plate including a negative electrode connection terminal which protrudes and extends from a boundary of a connection opening such that the protruding and extending part is in contact with the negative electrode terminal and electrically connects the plurality of cylindrical battery cells. Between the positive electrode connection terminal and the negative electrode connection terminal, a connection terminal which is in contact with a positive electrode terminal or a negative electrode terminal that is not opened by the gas vent unit includes a fuse unit which is configured to be disconnected, when an electric current of a certain level or greater flows from the cylindrical battery cell, and which has a bent structure that is bent at least once in a horizontal direction.

Description

technical field [0001] The present disclosure relates to a battery module including a bus bar plate, a battery pack including the battery module, and an electronic device, and more particularly to a bus bar including quick electrical disconnection in the event of an abnormal behavior (short circuit) of a cylindrical battery cell. Slatted battery modules. [0002] This application claims the benefit of Korean Patent Application No. 10-2019-0117413 filed with the Korean Intellectual Property Office on September 24, 2019, the entire disclosure of which is incorporated herein by reference. Background technique [0003] Recently, the demand for portable electronic products such as notebook computers, video cameras, and mobile phones has increased dramatically, and with the widespread development of electric vehicles, storage batteries for energy storage, robots, and satellites, people are demanding high-performance secondary batteries that can be recharged Do a lot of research. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M50/583H01M50/559H01M50/507H01M10/052
CPCH01M50/583H01M50/507H01M50/559H01M10/052H01M50/213H01M50/3425H01M50/578H01M50/581H01M50/502H01M2200/103H01M2220/20H01M50/572H01M50/30H01M50/50Y02E60/10H01M50/531
Inventor 郑韩溶李锡勋孙荣洙
Owner LG ENERGY SOLUTION LTD
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