Laser-printed/structured thick-film electrodes for Li-ion microbatteries

Heungsoo Kim; Thomas E. Sutto; Johannes Proell; Robert Kohler; Wilhelm Pfleging; Alberto Piqué

doi:10.1117/12.2037287

6 March 2014 Laser-printed/structured thick-film electrodes for Li-ion microbatteries

Heungsoo Kim, Thomas E. Sutto, Johannes Proell, Robert Kohler, Wilhelm Pfleging, Alberto Piqué

Proceedings Volume 8968, Laser-based Micro- and Nanoprocessing VIII; 89680L (2014) https://doi.org/10.1117/12.2037287
Event: SPIE LASE, 2014, San Francisco, California, United States

Abstract

Laser induced forward transfer (LIFT) process was used to print thick-film electrodes (LiCoO2 cathode and carbon anode) and solid-state polymer membranes for Li-ion microbatteries. Their electrochemical behaviors were characterized by cyclic voltammograms, capacity measurement and cycling performance. Microbatteries based on these laser-printed thick-film electrodes showed significantly higher discharge capacities than those made by sputter-deposited thin film techniques. This enhanced performance is attributed to the high surface area porous structure of the laser-printed electrodes that allows improved diffusion of the Li-ions across the 100 μm-thick electrodes without a significant internal resistance. In addition, a laser structuring process was used to prepare three-dimensional microstructures on the laserprinted thick-film electrodes to further improve battery performance by increasing the active surface area. These results indicate that the laser processing techniques are a viable approach for developing Li-ion microbatteries in microelectronic devices. This paper will show examples of Li-ion microbatteries fabricated with various polymer separators and structured electrodes using a combination of LIFT and excimer laser structuring processes.

Citation Download Citation

Heungsoo Kim, Thomas E. Sutto, Johannes Proell, Robert Kohler, Wilhelm Pfleging, and Alberto Piqué "Laser-printed/structured thick-film electrodes for Li-ion microbatteries", Proc. SPIE 8968, Laser-based Micro- and Nanoprocessing VIII, 89680L (6 March 2014); https://doi.org/10.1117/12.2037287

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