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

Publikation: Beitrag in Buch/Konferenzbericht/Sammelband/GutachtenBeitrag in KonferenzbandBeigetragenBegutachtung

Beitragende

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 laser-assisted 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.

Details

OriginalspracheEnglisch
TitelLaser-based Micro And Nanoprocessing X
Seitenumfang7
ISBN (elektronisch)978-1-62841-971-9
PublikationsstatusVeröffentlicht - 2016
Peer-Review-StatusJa

Publikationsreihe

ReiheProceedings of Spie
Band9736
ISSN0361-0748

Konferenz

TitelConference on Laser-Based Micro-and Nanoprocessing X
Dauer16 - 18 Februar 2016
StadtSan Francisco
LandKanada

Externe IDs

Scopus 84974528578

Schlagworte

Ziele für nachhaltige Entwicklung

Schlagwörter

  • 3D battery, Direct laser interference patterning, Laser-induced periodic surface structuring, Peel-off adhesion test, Femtosecond and picosecond laser processing, Film adhesion, Lithium-ion battery