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Laser welding apparatus comprising laser beam blocking block

A laser welding and laser beam technology, applied in laser welding equipment, welding equipment, welding equipment and other directions, can solve problems such as high risk and damage to secondary batteries, achieve high welding reliability, prevent damage to battery modules, increase The effect of bonding

Active Publication Date: 2020-01-31
LG ENERGY SOLUTION LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] However, in this laser welding method, when the laser welding equipment malfunctions during the welding process between the bus bar and the electrode lead of the secondary battery, there may be a case where the welding jig is not positioned at the proper position of the battery module. Irradiate the laser beam
In this situation, the erroneously irradiated laser beam is directly irradiated to the secondary battery of the battery module, thus damaging the secondary battery, and when the secondary battery is irradiated severely, the secondary battery is ignited, so there is a high risk

Method used

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  • Laser welding apparatus comprising laser beam blocking block
  • Laser welding apparatus comprising laser beam blocking block
  • Laser welding apparatus comprising laser beam blocking block

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Embodiment Construction

[0047] 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 used in this specification and the appended claims should not be construed as limited to the ordinary dictionary meanings, but should be based on the principle of allowing the inventors to properly define the terms for best interpretation The above is explained based on meanings and concepts corresponding to technical aspects of the present disclosure.

[0048] Therefore, the descriptions presented herein are only preferred examples for the purpose of illustration and are not intended to limit the scope of the present disclosure, so it should be understood that other equivalents and modifications can be made to the present disclosure without departing from the scope of the present disclosure.

[0049] figure 1 is a front perspective view schematically showing a laser welding ...

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Abstract

The present invention provides a laser welding apparatus configured to weld at least one electrode lead of a secondary battery of a battery module to a main busbar configured to electrically connect aplurality of secondary batteries to each other. To achieve the above purpose, the laser welding apparatus according to the present invention comprises: a laser beam light-emitting unit including a laser light emitting element to irradiate the electrode lead and the main busbar with a laser beam; a close contact jig including a close contact part horizontally moving to allow the electrode lead tobe in close contact with the main busbar; and a blocking block which blocks a laser beam generated by the laser beam light-emitting unit from reaching the secondary battery or is open to allow the generated laser beam to pass therethrough in accordance with a horizontal movement position of the close contact part.

Description

technical field [0001] The present disclosure relates to a laser welding apparatus including a laser beam blocking stand, and more particularly, to a laser welding apparatus capable of preventing damage to a battery module caused by a laser beam. [0002] This application claims priority from Korean Patent Application No. 10-2018-0001931 filed in Korea on Jan. 5, 2018, the disclosure of which is incorporated herein by reference. Background technique [0003] Currently, commercially available secondary batteries include nickel-cadmium batteries, nickel-hydrogen batteries, nickel-zinc batteries, lithium secondary batteries, etc. Among them, lithium secondary batteries rarely produce memory effects compared with nickel-based secondary batteries, so lithium secondary batteries Secondary batteries have attracted attention due to their advantages of free charge / discharge, extremely low self-discharge rate, and high energy density. [0004] Such lithium secondary batteries mainly ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/21B23K26/70B23K37/04H01M2/20H01M2/26B23K101/38H01M50/505H01M50/516H01M50/522H01M50/536
CPCY02E60/10B23K2101/36B23K2103/10B23K2103/12B23K26/066B23K26/24B23K26/22B23K26/32B23K26/702B23K37/0443H01M50/522H01M50/505H01M50/516H01M50/536B23K26/21H01M50/502H01M50/531
Inventor 李订勋金炅模朴真用池昊俊姜达模文祯晤
Owner LG ENERGY SOLUTION LTD