Direct laser interference patterning and ultrafast laser-induced micro/nano structuring of current collectors for lithium-ion batteries

Y. Zheng; Z. An; P. Smyrek; H. J. Seifert; T. Kunze; V. Lang; A.-F. Lasagni; W. Pfleging

doi:10.1117/12.2220111

24 March 2016 Direct laser interference patterning and ultrafast laser-induced micro/nano structuring of current collectors for lithium-ion batteries

Y. Zheng, Z. An, P. Smyrek, H. J. Seifert, T. Kunze, V. Lang, A.-F. Lasagni, W. Pfleging

Author Affiliations +

Proceedings Volume 9736, Laser-based Micro- and Nanoprocessing X; 97361B (2016) https://doi.org/10.1117/12.2220111
Event: SPIE LASE, 2016, San Francisco, California, United States

Abstract

Laser-assisted modification of metals, polymers or ceramics yields a precise adjustment of wettability, biocompatibility or tribological properties for a broad range of applications. Due to a specific change of surface topography on micro- and nanometer scale, new functional properties can be achieved. A rather new scientific and technical approach is the laserassisted surface modification and structuring of metallic current collector foils for lithium-ion batteries. Prior to the thick film electrode coating processes, the formation of micro/nano-scaled surface topographies on current collectors can offer better interface adhesion, mechanical anchoring, electrical contact and reduced mechanical stress during cycling. These features in turn impact on the battery performance and the battery life-time. In order to generate the 3D surface architectures on metallic current collectors, two advanced laser processing structuring technologies: direct laser interference patterning (DLIP) and ultrafast laser-induced periodic surface structuring (LIPSS) were applied in this study. After laser structuring via DLIP and LIPSS, composite electrode materials were deposited by tape-casting on the modified current collectors. The electrode film adhesion was characterized by tensile strength measurements. The impact of various surface structures on the improvement of adhesive strength was discussed.

Citation Download Citation

Y. Zheng, Z. An, P. Smyrek, H. J. Seifert, T. Kunze, V. Lang, A.-F. Lasagni, and W. Pfleging "Direct laser interference patterning and ultrafast laser-induced micro/nano structuring of current collectors for lithium-ion batteries", Proc. SPIE 9736, Laser-based Micro- and Nanoprocessing X, 97361B (24 March 2016); https://doi.org/10.1117/12.2220111

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available