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Integration of laser structuring into the electrode manufacturing …
Enhanced performance and lifetime of lithium-ion batteries by laser structuring of graphite anodes
Batteries | Free Full-Text | Processing of Advanced …
Due to the increasing demand for high-performance cells for mobile applications, the standards of the performance of active materials and the efficiency of cell production strategies are rising. One promising …
Laser texturing of Li-ion battery electrode current collectors for …
Nanosecond laser processing (NLP) is performed on aluminium and copper Li-ion battery (LIB) current collectors to improve the interface adhesion with active materials. The developed area ratio, S dr, void volume, V v, and maximum crater depth, h, are introduced to quantify the effectiveness and feasibility of NLP over a range of process …
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 …
Integration of laser structuring into the electrode manufacturing process chain for lithium-ion batteries …
Lithium-ion batteries (LIBs) are currently the prevalent technical solution for electrochemical energy storage. ... Enhanced performance and lifetime of lithium-ion batteries by laser structuring of graphite anodes Appl. …
Laser-based three-dimensional manufacturing technologies for rechargeable batteries …
Laser three-dimensional (3D) manufacturing technologies have gained substantial attention to fabricate 3D structured electrochemical rechargeable batteries. Laser 3D manufacturing techniques offer excellent 3D microstructure controllability, good design flexibility, process simplicity, and high energy and cost efficiencies, which are …
Lithium‐based batteries, history, current status, challenges, and …
Among rechargeable batteries, Lithium-ion (Li-ion) batteries have become the most commonly used energy supply for portable electronic devices such as …
Applied Sciences | Free Full-Text | An Improved YOLOv5 Model for Detecting Laser Welding Defects of Lithium Battery …
Focus on the requirement for detecting laser welding defects of lithium battery pole, a new model based on the improved YOLOv5 algorithm was proposed in this paper. First, all the 3 × 3 convolutional kernels in the backbone network were replaced by 6 × 6 convolutional kernels to improve the model''s detection capability of a small defect; …
Nanomaterials | Free Full-Text | Electrochemical Properties of Laser-Printed Multilayer Anodes for Lithium-Ion Batteries …
New electrode architectures promise huge potential for improving batteries'' electrochemical properties, such as power density, energy density, and lifetime. In this work, the use of laser-induced forward transfer (LIFT) was employed and evaluated as a tool for the development of advanced electrode architectures. For this purpose, it was first …
Operando monitoring Lithium-ion battery temperature via implanting femtosecond-laser …
Realizing excellent fusion of optical fiber and lithium-ion battery. • Implementation of internal temperature monitor by implanting FBG. • FBG sensor displays better signal-to-noise ratio than thermocouple. • The internal temperature is 3.83 C higher than the external
Surface Reconditioning of Lithium Metal Electrodes by Laser …
Symmetric all-solid-state lithium metal batteries and liquid electrolyte lithium metal batteries were manufactured to test the electrochemical performance of laser-cleaned …
Advanced Laser Welding in Lithium Battery Manufacturing
Advantages of Lithium Battery Welding: Laser welding offers high energy density, minimal welding deformation, a small heat-affected zone, effective improvement of part precision, smooth and impurity-free weld seams, consistent density, and eliminates the need ...
Laser-Induced Breakdown Spectroscopy of Laser-Structured Li (NiMnCo)O 2 Electrodes for Lithium-Ion Batteries …
During the last years, lithium nickel manganese cobalt oxide (Li(Ni,Mn,Co)O 2, NMC) has acquired great interest as cathode material for high-energy and high-power lithium-ion battery application. 1 NMC was first introduced by Ohzuku et al. in 2001 2,3 and since then has attained attractiveness because of its many advantages …
WEVJ | Free Full-Text | High-Speed Laser Drying of Lithium-Ion Battery …
In modern electrode manufacturing for lithium-ion batteries, the drying of the electrode pastes consumes a considerable amount of space and energy. To increase the efficiency of the drying process and reduce the footprint of the drying equipment, a laser-based drying process is investigated. Evaporation rates of up to 318 g m−2 s−1 can be …
A review of laser electrode processing for development and …
Laser processes for cutting, annealing, structuring, and printing of battery materials have a great potential in order to minimize the fabrication costs and to increase …
Laser technology for energy-efficient production of battery cells …
High-performance battery cells are a crucial prerequisite for electrifying the mobility sector. With this in mind, researchers at the Fraunhofer Institute for Laser Technology ILT in Aachen have developed innovative laser-based technologies for producing lithium-ion batteries—which, in comparison with those produced …
Recent progress in laser texturing of battery materials: a review of …
Recent progress in laser texturing of battery materials: a review of tuning electrochemical performances, related material development, ... Overpotentials in lithium-ion batteries have different sources, which lower the …
WEVJ | Free Full-Text | Process and Material Analysis of Laser
Drying electrodes is very cost-intensive as it is characterized by high energy and space consumption. Laser drying is considered a promising alternative process due to direct energy input and lower operating costs. However, it is unclear whether the same product and process quality can be achieved with laser drying. Silicon–graphite …
More flexible battery design with ultrafast laser ablation
The Fraunhofer Institute for Laser Technology ILT has investigated one such application that certainly looks to have a bright future: The Aachen-based researchers developed a quick, reliable and nondestructive method of …
A groovy laser processing route to achieving high power and …
This laser-structured NMC622 has a high areal capacity of 5.5 mAh cm −2 and an areal energy density over 200 Wh m − 2 at the electrode level by assuming an average voltage of 3.7 V, almost double that of commercial lithium-ion battery …
Comparative Evaluation of Graphite Anode Structuring for Lithium-Ion Batteries Using Laser …
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 ...
Laser-induced thermal runaway dynamics of cylindrical lithium-ion battery
Laser is a precise, remote, and non-invasive heating method that can initiate thermal runaway of lithium-ion batteries in safety tests. This study systemically explores the thermal runaway of cylindrical cells induced by constant laser irradiation up to 20 W and 1.6 ...
Laser Cutting in the Production of Lithium Ion Cells
groups are investigating the influence of several production processes on the quality of the produced lithium ion battery cell. ... 10.1016/j.phpro.2012.10.032 LANE 2012 Laser Cutting in the Production of Lithium Ion Cells M. R. Kronthaler ∗, F M ...
Regulating Lithium Electrodeposition with Laser-Structured Current Collectors for Stable Lithium Metal Batteries
Lithium-metal batteries (LMBs) are promising electrochemical energy storage devices with high energy densities. However, the extreme reactivity of metallic lithium, the large volumetric change of the electrode during cycling, and the notorious dendrite formation issues lead to low cyclic stability and safety concerns, hindering the …
Enhanced performance and lifetime of lithium-ion batteries by …
Production of large-format lithium-ion batteries with laser-structured anodes. • Laser-structuring of anodes improves discharge and charge rate capability. • …
Quality assurance of battery laser welding: A data-driven approach
The advantages of Laser Welding beam welding are mainly related to the low electrical contact resistance (ECR) and the 12th CIRP Conference on Photonic Technologies [LANE 2022], 4-8 September 2022, Fürth, …
Wilhelm Pfleging* A review of laser electrode processing for development and manufacturing of lithium-ion batteries …
4 W. Pfleging: Laser electrode processing for lithium-ion batteries defines the amount of lithium-ions, which can be trans- ferred within the charged battery at a certain voltage.
Optimized LiFePO 4 -Based Cathode Production for Lithium-Ion …
The drying of electrodes for lithium-ion batteries is one of the most energy- and cost-intensive process steps in battery production. Laser-based drying …
Comparative Evaluation of Graphite Anode Structuring for Lithium …
Lithium-ion batteries are the key component for portable electronics, such as power tools or consumer electronics, as well as electromobility. Especially for the …
Battery bonding: Ultrasonic wire bonding vs laser …
Ultrasonic wire bonding vs laser welded bonding Li-ion cells come in many different shapes and size. There''s also a large variety of options to choose from when designing the connections between each …
A review of laser electrode processing for …
Laser processes for cutting, annealing, structuring, and printing of battery materials have a great potential in order to minimize the fabrication costs and to increase the electrochemical performance and operational lifetime …
Laser Marking in the Battery Industry
KEYENCE''s UV laser, the MD-U, and Hybrid laser MD-X Series mitigate heat stress to provide damage-free lithium battery marking, even on thin electrodes. The MD-U mitigates heat by using a highly absorptive wavelength (355 nm) to achieve "cold marking," whereas the MD-X reduces battery manufacturing damage because of its high peak power and …
SKIL 65ft. 360° Red Self-Leveling Cross Line Laser Level with Horizontal and Vertical Lines Rechargeable Lithium Battery …
MAITHEUO Laser Level, 3x360 High Visibility Red Cross Line Self-leveling Laser Level, Laser Level Line Tool for Outdoor/Indoor, Picture Hanging, with Battery, Remote Control, Magnetic Stand dummy Firecore 360° Laser Level with Tripod, Green Self Leveling Cross Line Laser Tool with 3 Brightness Adjustment Pulse Mode for Floor Tile …