New Welding techniques and laser sources for battery welding

被引：5

作者：

Pantsar, Henrikki ^{[1
]}

Dold, Eva ^{[2
]}

Gabzdyl, Jack ^{[3
]}

Kaiser, Elke ^{[2
]}

Hesse, Tim ^{[2
]}

Kirchhoff, Marc ^{[2
]}

Faisst, Birgit ^{[2
]}

机构：

[1] Trumpf Inc, 47711 Clipper St, Plymouth Twp, MI 48170 USA

[2] Trumpf Laser & Syst Tech GmbH, Dieselstr 1, D-71254 Ditzingen, Germany

[3] SPI Lasers UK Ltd, 6 Wellington Pk,Tollbar Way, Southampton SO30 2QU, Hants, England

来源：

HIGH-POWER LASER MATERIALS PROCESSING: APPLICATIONS, DIAGNOSTICS, AND SYSTEMS VII | 2018年 / 10525卷

关键词：

Laser welding; batteries; copper; aluminum; green laser; ns pulsed laser;

D O I：

10.1117/12.2291078

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

New processes and lasers are required to optimize and improve processes for laser welding of batteries. Highly reflective materials cause problems due to lack of absorption, stability, spatter and brittle intermetallic phases. We present solutions for battery welding using pulsed green lasers and nanosecond pulsed IR lasers. Green laser improved process stability and spatter formation between 0.1-0.8 mm penetration depth could be avoided. Nanosecond welding process differs from normal keyhole welding and formation of intermetallic phases can be suppressed. Analysis is based on high-speed camera measurements and metallurgical studies, showing significant improvement in the process and weld quality.

引用

页数：6

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