Press Release Fraunhofer ILT, 2020-9-8 | High rate laser ablation with ultra-short pulse lasers – Fast residue-free coating and ablation of lithium-ion batteries The ultrashort pulse (USP) laser has been known to shine …
More flexible battery design with ultrafast laser ablation
Press Release Fraunhofer ILT, 2020-9-8 | High rate laser ablation with ultra-short pulse lasers – Fast residue-free coating and ablation of lithium-ion batteries The ultrashort pulse (USP) laser has been known to shine …
Laser cutting of lithium iron phosphate battery electrodes: Characterization of process efficiency …
Per-pulse ablation depths have therefore been calculated for the electrode active layers, giving new insight into the dominant factors influencing ablation of each individual material. Analysis of incisions achieved over the range of exposure conditions has allowed specification of optimum electrode cutting parameters in light of the physical …
Comparative Evaluation of Graphite Anode Structuring for Lithium-Ion Batteries Using Laser Ablation …
Lithium-ion batteries inherently suffer from a target conflict between a high energy density and a high power density. The creation of microscopic holes in the electrodes alleviates the trade-off by facilitating lithium-ion diffusion. This study presents a novel concept for ...
Drying of lithium-ion battery negative electrode coating: Estimation of transport parameters …
Abstract Drying of the coated slurry using N-Methyl-2-Pyrrolidone as the solvent during the fabrication process of the negative electrode of a lithium-ion battery was studied in this work. Three different drying temperatures, …
Composites of tin oxide and different carbonaceous materials as negative electrodes in lithium-ion batteries
Tin and tin oxide have been considered as suitable materials with a high theoretical capacity for lithium ion batteries. Their low cost, high safety, and other technical benefits placed them as promising replacements for graphite negative electrodes. The problem to overcome with tin oxide, as well as with other metallic materials, is high …
Laser ablation on lithium-ion battery electrode solid electrolyte …
The formation of a solid electrolyte interface (SEI) on a Li-ion battery electrode during usage cycling is a critical reason for battery capacity loss. In this paper, laser ablation technology is applied to remove SEI from a graphite electrode surface. Characterization methods including scanning electron microscopy, Raman microscopy, …
Pulsed Laser Ablation of Lithium Ion Battery Electrodes
Lithium ion battery electrodes have been exposed to 1064nm nanosecond pulsed laser irradiation with pulse energy in the range 8μJ – 1mJ and fluence in the range 3.2 – 395J/cm2. Experiments have been executed at translational velocities of 100mm/s and 1m/s, allowing individual characterization of the graphite and lithium metal oxide coatings …
High Throughput Laser Processing for Enhanced Battery …
Ultrafast (femtosecond)-pulsed laser ablation is a promising method to introduce such micro pores or channels in thick battery electrodes as it allows for precise control of …
Laser ablation of electrodes for Li-ion battery remanufacturing
Formation of solid electrolyte interface (SEI) on the electric vehicle (EV) battery electrodes has been indicated as major cause of capacity deterioration in the electric vehicle battery. This paper describes process for the removal of SEI deposited on the EV battery electrodes during continuous cycling. Laser fluence ranging from 0.308 to …
Tin oxide nanoparticles from laser ablation encapsulated in a carbonaceous matrix – a negative electrode in lithium-ion battery …
In other work, a negative electrode for lithium-ion batteries was fabricated using SnO nanoparticles synthesized by laser ablation encapsulated in a carbonaceous matrix [385].
More flexible battery design with ultrafast laser ablation
A more flexible way of producing diverse electrodes Lithium-ion batteries are not only essential to electric vehicles; they also power consumer electronic devices such as tablets and smartphones. Manufacturing a wide …
Ablation of negative electrode coated area Ablation of positive electrode coated area Prime cleaning quality ... Ablation of positive electrode coated area Prime cleaning quality frequency, and pulse-width of laser ablation, to improve the ablation effect. Residues ...
Laser ablation on lithium-ion battery electrode solid electrolyte …
The formation of a solid electrolyte interface (SEI) on a Li-ion battery electrode during usage cycling is a critical reason for battery capacity loss. In this paper, laser ablation ...
Pulsed Laser Ablation of Lithium Ion Battery Electrodes | Request …
ion battery electrodes have been exposed to 1064nm nanosecond pulsed laser irradiation ... Both positive and negative electrode materials and the full cell were characterized by scanning electron ...
Modeling of selective laser ablation of lithium-ion battery electrodes …
In the present study, the infrared emissions of the selective ablation process of Li-ion battery electrodes are investigated experimentally. The electrode consists of graphite active material ...
Laser ablation on lithium-ion battery electrode solid electrolyte …
The formation of a solid electrolyte interface (SEI) on a Li-ion battery electrode during usage cycling is a critical reason for battery capacity loss. In this paper, …
Laser ablation for structuring Li-ion electrodes for fast charging …
For widespread adoption of electric vehicles, Li-ion batteries need to achieve energy densities of 275 Wh/kg, cost less than $100/kWh and charge quickly …
Safe and reliable laser ablation assisted disassembly methodology for cylindrical battery …
Until today, disassembling cylindrical 18650 cells commonly involved using a pipe cutter and pliers, with a risk of short-circuiting and mechanical damage to the electrode ...
Direct reuse of graphite and lithium nickel manganese cobalt …
Collection of active material debris from laser ablation of battery electrodes. •. Graphite debris remains mostly unchanged after ultrafast laser ablation. •. …
Research progress on carbon materials as negative electrodes in sodium‐ and potassium‐ion batteries …
Due to their abundance, low cost, and stability, carbon materials have been widely studied and evaluated as negative electrode materials for LIBs, SIBs, and PIBs, including graphite, hard carbon (HC), soft carbon (SC), graphene, and so forth. 37-40 Carbon materials have different structures (graphite, HC, SC, and graphene), which can meet the needs for …
Restructuring the lithium-ion battery: A perspective on electrode …
1. Introduction Lithium-ion batteries (LIBs) have redefined societal energy use since their commercial introduction in the 1990s, leading to advancements in communication, computing, and transportation. By remedying intermittency of renewable energy sources (i.e., wind and solar), LIBs hold promise to enable the transition away …
A review of laser electrode processing for development and …
A defined thermal impact can be useful in electrode manufacturing which was demonstrated by laser annealing of thin-film electrodes for adjusting of battery …
Comparative Evaluation of Graphite Anode Structuring for Lithium …
The creation of microscopic holes in the electrodes alleviates the trade-off by facilitating lithium-ion diffusion. This study presents a novel concept for electrode structuring called structure calendering, combining mechanical embossing (MEC) and …
Analysis of Battery Constituent Materials Based on …
Analysis of Battery Constituent Materials Based on Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS) This method is effective as a tool for analyzing deterioration and fault of battery …
