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Title:
TAB ULTRASONIC WELDING METHOD AND TAB WELDING DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/174410
Kind Code:
A1
Abstract:
Provided is a tab ultrasonic welding method, comprising the following steps: sequentially unwinding a first foil (11), a composite foil (12) and a second foil (13), such that the first foil (11), the composite foil (12) and the second foil (13) are laminated in sequence to form an intermediate of a laminated foil; respectively welding the first foil (11) and the second foil (13) to two opposite surfaces of the composite foil (12) in an ultrasonic welding manner to obtain the laminated foil (1); laminating the laminated foil (1) to a set number of layers n to form a laminate (21), n being greater than or equal to 1; and welding the laminate (21) and a tab (22) in the ultrasonic welding manner to form a tab assembly (2). The first foil (11), the composite foil (12) and the second foil (13) are laminated in sequence, and during welding, ultrasonic welding directly applies energy to the first foil (11) and the second foil (13), such that the energy generated from direct contact of ultrasonic welding with the composite foil (12) can be reduced, the problems of over-welding, welding penetration and poor soldering in the welding process are effectively avoided, and the welding effect is ensured.

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Inventors:
ZHOU GAOYANG (CN)
LI XUEFA (CN)
ZHANG GUOPING (CN)
Application Number:
PCT/CN2023/082200
Publication Date:
September 21, 2023
Filing Date:
March 17, 2023
Export Citation:
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Assignee:
JIANGYIN NANOPORE INNOVATIVE MATERIALS TECH LTD (CN)
International Classes:
B23K20/10; B29C65/08; H01M50/536
Foreign References:
CN114700604A2022-07-05
CN114734641A2022-07-12
CN111769289A2020-10-13
CN112824006A2021-05-21
CN111435727A2020-07-21
CN110911646A2020-03-24
CN207896186U2018-09-21
JP2004148373A2004-05-27
US20140087245A12014-03-27
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
Download PDF:
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