Title:
ULTRASONIC WELDING METHOD FOR TAB
Document Type and Number:
WIPO Patent Application WO/2023/173585
Kind Code:
A1
Abstract:
An ultrasonic welding method for a tab, comprising the following steps: sequentially unwinding a first foil (11), a composite foil (12) and a second foil (13), so that the first foil (11), the composite foil (12) and the second foil (13) are sequentially stacked to form intermediates of laminated foils (1); 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 foils (1); and laminating the laminated foils (1) to a set number of layers, and sequentially welding the plurality of laminated foils (1) in an ultrasonic welding manner to form a laminated weldment (21). According to the ultrasonic welding method for a tab, first, the first foil (11), the composite foil (12) and the second foil (13) are sequentially stacked, and during welding, ultrasonic welding directly acts on energy on the first foil (11) and the second foil (13), so that the energy generated by direct contact of ultrasonic welding with the composite foil (12) can be reduced, the problems of over-welding, welding penetration and poor welding in the welding process are effectively avoided, and the welding effect is guaranteed; then the plurality of laminated foils (1) are sequentially stacked and welded, so that the distance between the plurality of laminated foils (1) can be shortened.
Inventors:
ZHOU GAOYANG (CN)
LI XUEFA (CN)
ZHANG GUOPING (CN)
LI XUEFA (CN)
ZHANG GUOPING (CN)
Application Number:
PCT/CN2022/094895
Publication Date:
September 21, 2023
Filing Date:
May 25, 2022
Export Citation:
Assignee:
JIANGYIN NANOPORE INNOVATIVE MATERIALS TECH LTD (CN)
International Classes:
B23K20/10; H01M50/534; H01M50/536; H01M50/538
Foreign References:
| CN112824006A | 2021-05-21 | |||
| CN111769289A | 2020-10-13 | |||
| CN111509233A | 2020-08-07 | |||
| CN111435727A | 2020-07-21 | |||
| CN110277532A | 2019-09-24 | |||
| CN216054791U | 2022-03-15 | |||
| CN112186130A | 2021-01-05 | |||
| US20220048129A1 | 2022-02-17 | |||
| JP2007234466A | 2007-09-13 |
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
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