Title:
ULTRASONIC WELDING METHOD
Document Type and Number:
WIPO Patent Application WO/2018/162477
Kind Code:
A3
Abstract:
A separator ultrasonic welding method according to an aspect of the present invention includes: making heat resistant layers of at least two separators each of which has a resin layer and the heat resistant layer formed on the resin layer opposedly face each other; sandwiching the at least two separators between a vibration member which generates ultrasonic vibration and a support member which supports the separators; and making the vibration member and the at least two separators move relative to each other, wherein a contact surface of one of the vibration member and the support member with the separator is formed in a convex curved shape as viewed in a side view perpendicular to the relative movement direction, and the vibration member or the support member is brought into contact with the separator in a spotted manner, and the at least two separators are welded to each other while being cut due to the relative movement.
Inventors:
OKI YUSUKE (JP)
YAMAMURA YASUAKI (JP)
OKABE KAZUYA (JP)
YAMAMURA YASUAKI (JP)
OKABE KAZUYA (JP)
Application Number:
PCT/EP2018/055468
Publication Date:
January 17, 2019
Filing Date:
March 06, 2018
Export Citation:
Assignee:
LITHIUM ENERGY & POWER GMBH & CO KG (DE)
International Classes:
H01M50/406; H01M50/417; H01M50/426; H01M50/451
Domestic Patent References:
| WO2016002059A1 | 2016-01-07 | |||
| WO2015050084A1 | 2015-04-09 |
Foreign References:
| EP2482774B1 | 2018-01-31 | |||
| EP1272332B1 | 2005-12-14 |
Other References:
JESSICA ANN RIEDL: "Process optimization: Ultrasonic welding of coextruded polymer film", 1 January 2013 (2013-01-01), XP055473738, ISBN: 978-1-303-45417-2, Retrieved from the Internet
Attorney, Agent or Firm:
BEE, Joachim (DE)
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