High speed remote laser cutting of electrodes for lithium-ion batteries ..- high speed remote laser cutting of electrodes for lithium-ion batteries anode ,The relationship between the laser parameters and cutting characteristics with defined widths are studied.. When the volume energy is less than 6..0172 × 1010 J/m³, no active electrode material is ..Journal of The Electrochemical Society, Volume 169, Number 6, June 2022 ..Cycling lithiated metal oxides to high potential (>4..5 V vs Li) is of significant interest for the next generation of lithium ion batteries as this significantly increases the capacity and energy of cells..
In this paper, a mathematical model of three-dimensional self-consistent remote laser cutting is presented for anode (graphite-coated copper) of lithium-ion batteries.. Computational and experimental results, obtained by using laser power of 450 W and scanning speed of 5 m s−1, show a two-step melt pool geometry and copper composition increase ..
Lithium-ion batteries are actively used for many applications due to many advantages.. Although electrodes are important during laser cutting, most laser cutting studies use commercially available electrodes.. Thus, effects of electrodes characteristics on laser cutting have not been effectively studied.. Since the electrodes’ characteristics can be manipulated in the laboratory, this study ..
Dongkyoung Lee*, "Modeling of high speed remote laser cutting of electrodes for lithium-ion batteries", KSPE Autumn Conference, Yeosu, Korea, 2016.. .. “Numerical studies of laser cutting on an anode for lithium-ion batteries”, ICALEO, Anaheim, CA, U..S..A.., 2012..
Lithium-ion cell generated with remote cutting technology Applications can be found in those cases, which require excellent component precisions smaller than plus/minus 10µm and which, at the same time, demand high cutting speeds at any contours..
The metal-free tactics bypass the hazards of Zn metal, and laser-radiated Te vacancies boost capacity, stability, conductivity, and diffusion kinetics of the electrode.. The laser-reduced MoTe 1..7 electrode shows a high reversible capacity (338 mAh g –1 at 0..2 A g –1) and outstanding cycling stability (96% retention for 10000 cycles at 1 A g ..
2..2.. Laser cutting in lithium ion battery production Remote Laser cutting of conventional lithium-ion battery foil (NMC, NCA, LFP cathodes or graphite anodes) is a method widely discussed in the scientific landscape for separation of electrodes [Lee et al.., 2013],[Luetke et al.., 2011 // 2014],[Reincke et al.., 2015]..
cutting of electrodes for Lithium-ion batteries T.. Reinckea*, S.. Krelinga, K .. Braunschweig a laser remote cutting process by using a SPI G4 pulsed fiber laser was selected.. .. The HAZ of the copper substrates is in a range between 135 µm and 425 µm depending on the cutting speed.. In addition, a high standard deviation at the lower cutting ..
1..Introduction.. Polymer electrolyte-based lithium-ion battery (LIB) has been widely studied in the field of flexible electronics , , , , , , thanks to its advantages of high volumetric energy density , excellent capacity retention rate and long lifespan ..However, the rigid electrolyte and electrode materials used in current LIBs are vulnerable to repeated deformation and external force, thus ..
Remote cutting of Li-ion battery electrodes with infrared and green ns-pulsed fibre lasers .. (2012) Ultra-high speed disk laser cutting of carbon fiber reinforced plastics.. J Laser Appl 24(1):012007–1–012007–8.. .. Lee D, Patwa R, Herfurth H, Mazumder J (2013) High speed remote laser cutting of electrodes for lithium-ion batteries ..
Modeling mass and density distribution effects on the performance of co-extruded electrodes for high energy density lithium-ion batteries journal, March 2014.. Cobb, Corie L..; Blanco, Mario .. High speed remote laser cutting of electrodes for lithium-ion batteries: Anode journal, October .. Nanoparticle-Based Anode material for Li-ion ..
Two batches of single-sided electrodes of different thicknesses were prepared and characterized: the first one having 70 μm thickness and the second one 320 μm (excluding the thickness of current collector).. Usually, the conventional high energy cells have electrodes in the order of ∼ 50 - 60 μm thickness.. Therefore in this article, 70 μm ..
Understanding physical phenomena provides significant advantages to fully utilize the remote laser cutting of electrodes for lithium-ion batteries.. In this paper, a 3D mathematical model of three ..
Cycling lithiated metal oxides to high potential (>4..5 V vs Li) is of significant interest for the next generation of lithium ion batteries as this significantly increases the capacity and energy of cells..
Lee, “ Modeling of high speed remote laser cutting of electrodes for lithium- ion batteries,” Ph..D.. thesis, .. Lee and J.. Mazumder, “ Numerical studies of laser cutting of an anode for lithium-ion batteries,” in Proceedings of the International Congress on Applications of Lasers and Electro–Optics, 2012..
Lithium-ion batteries are actively used for many applications due to many advantages.. Although electrodes are important during laser cutting, most laser cutting studies use commercially available electrodes.. Thus, effects of electrodes characteristics on laser cutting have not been effectively studied.. Since the electrodes’ characteristics can be manipulated in the laboratory, this study ..
Thin sheet anode and cathode materials made in composite structures constitute some of the most important components of a Li-ion battery.. These materials are currently cut by punching technology, which shows degrading behaviour as the tool wears out.. A viable option for Li-ion battery electrode manufacturing is the use of remote laser cutting.. However, the operation requires fulfilling both ..
Highlights A 3D mathematical model of the high speed remote laser cutting of anode is developed.. Simulation results present depth, width, and absorptivity variations during the laser cutting of the anode.. Temperature distribution, melt pool geometry, melt pool flow, and composition distribution are examined.. The cut surface, kerf width, and copper composition of the experimentally obtained ..
In this paper, a mathematical model of three-dimensional self-consistent remote laser cutting is presented for anode (graphite-coated copper) of lithium-ion batteries.. Computational and experimental results, obtained by using laser power of 450 W and scanning speed of 5 m s−1, show a two-step melt pool geometry and copper composition increase ..
Modeling of High Speed Remote Laser Cutting of Electrodes for Lithium-ion Batteries.. Lee, Dongkyoung.. 2012.. View/ Open.. keyenlee_1..pdf (10..2MB.. .. For the anode, the L/V interface in the graphite region shows a smooth and clean surface, and a two-level surface is observed near the material interface.. .. High Speed Remote Laser Cutting of ..
Dongkyoung Lee*, "Investigation of physical phenomena and cutting efficiency for laser cutting on anode for lithium-ion batteries", Applied Sciences, 2018, SCI(E) .. Hans Herfurth, Joyti Mazumder, “ High speed remote laser cutting of electrodes for lithium-ion batteries : anode ”, Journal of Power Sources, 2013, SCI(E) 1..
Highlights A 3D mathematical model of the high speed remote laser cutting of anode is developed.. Simulation results present depth, width, and absorptivity variations during the laser cutting of the anode.. Temperature distribution, melt pool geometry, melt pool flow, and composition distribution are examined.. The cut surface, kerf width, and copper composition of the experimentally obtained ..
This research investigates the underlying physics of the laser cutting of electrodes for lithium-ion batteries and validates important findings experimentally..The mathematical model considers heat transfer, mass transfer, fluid flow, melting, solidification, evaporation, kinetic Knudsen layers, multiple reflections, free surface evolution, and composite materials..
Modeling of High Speed Remote Laser Cutting of Electrodes for Lithium-ion Batteries.. Lee, Dongkyoung.. 2012.. View/ Open.. keyenlee_1..pdf (10..2MB.. .. For the anode, the L/V interface in the graphite region shows a smooth and clean surface, and a two-level surface is observed near the material interface.. .. High Speed Remote Laser Cutting of ..
Understanding physical phenomena provides significant advantages to fully utilize the remote laser cutting of electrodes for lithium-ion batteries.. In this paper, a 3D mathematical model of three ..
