improves the electrochemical performance for cell without cost- and time-consuming storage procedures.
Summary & Conclusion A new technical approach of using laser-generated capillary structures in electrode materials was presented. This technology can be applied in order to increase cell reliability during the production process, to shorten production times of lithium-ion cells as well as to increase the cell life-time during cycling. Due to an improved cycle life-time and increased capacity retention, the use of high power batteries in 2nd
life applications
becomes interesting. Cost-efficient ns fiber lasers can be applied for carrying out the structuring process for several types of electrode materials. Nevertheless, regarding the structuring of LFP, a further reduction of active mass loss, and an up-scaling of the structuring process, the use of ultrafast laser processing becomes necessary.
Wilhelm Pfleging, Yijing Zheng, Peter Smyrek and Johannes Pröll are all with the Karlsruhe Nano Micro Facility in Germany.
They are joined by Melanie Mangang in their work at Karlsruhe Institute of Technology (KIT).
References 1.) J. Pröll, H. Kim, A. Piqué, H.J. Seifert, W. Pfleging, J. Power Sources, 255(0) (2014), 116-124. 2.) J.H. Park, R. Kohler, W. Pfleging, W. Choi, H.J. Seifert, J.K. Lee, RSC Adv., 4(9) (2014), 4247-4252. 3.) R. Kohler, J. Pröll, M. Bruns, S. Ulrich, H.J. Seifert, W. Pfleging, Appl. Phys. A, 112(1) (2013), 77-85. 4.) W. Pfleging, J. Pröll, J. Mater Chem A, 2(36) (2014), 14918-14926. 5.) J. Choi, E. Morikawa, S. Ducharme, P.A. Dowben, Mater Lett, 59(28) (2005), 3599-3603. 6.) M. Mangang, H.J. Seifert, W. Pfleging, J. Power Sources, 304 (2016), 24-32. 7.) P. Smyrek, J. Pröll, H.J. Seifert, W. Pfleging, J. Electrochem Soc, 163(2) (2016), A19-A26.
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