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Aluminum foil is the predominant cathodic current collector in lithium-based batteries due to the high electronic conductivity, stable chemical/electrochemical properties, low density, and low cost. However, with the development of next-generation lithium batteries, Al current collectors face new challenges, such as the requirement of increased chemical stability at high voltage, long-cycle
The cell using GLC-Al foil can greatly reduce the potential polarization in Li-S batteries and can obtain a reversible capacity of 750 mAh g-1 over 100 cycles at 0.5 C. Even with high sulfur
The bare Al foil sample showed a relatively clean surface without pits and cracks. The presence of the striped patterns is an evidence of rolling process during the production of Al foils from slabs. In contrast, the coated foil exhibited a compley different morphology. Even though the rolling patterns can still be observed, the coated foil
In high-voltage Li-ion batteries, the GLC-Al foil significantly improves the high-rate performance, showing an increased retained capacity by over 100 mAh g-1 after 450 cycles at 1C compared to the bare foil. It is believed that the developed GLC-Al foil brings new opportunities to enhance the battery life of lithium-based
stable and conductive Al foil as a current collector may bring new opportunities to further improve the battery life of Li (-ion) batteries. RESULTS AND DISCUSSION Physical characterizations of as-prepared Al foils are illustrated in Figure 1. Compared to the bare Al foil (Figure 1a), the Al foil with the GLC-coating layer demonstrates a dark
Particles were distributed over the aluminum foil surface, measuring approximay 0.2 µm in size and identified as γ-Al 2 O 3 crystals through selected-area diffraction and EDX. γ-Al 2 O 3 crystals remained at the center of the half-cubic pit, with a portion distributed along the rolling lines, exhibiting behavior similar to that of MgAl 2
The introduction of a moderate thermal-contact stress upon the Cu foil during the annealing leads to the formation of high-index grains dominated by the thermal strain of the Cu foils, rather than the (111) surface driven by the surface energy. Besides, the designed static gradient of the temperature enables the as-formed high-index grain seed
We developed a universally applicable roll-to-roll mechanical prelithiation method and successfully prelithiated Sn foil, Al foil and Si/C anodes. The as-prepared Li x Sn foil exhibited an increased ICE from 20% to 94% and achieved 200 stable cycles in LiFePO 4 //Li x Sn full cells at ∼2.65 mA h cm
Using Al foil as the substrate for Cu2ZnSnS4 (CZTS) easily leads to oxidation, forming a high-resistance Al2O3 film that increases structural resistance. Herein, a plasma cleaning technology was developed for the surface treatment of Al foil. As the plasma cleaning voltage and time increased, the activation energy of A on Al foil decreased, enabling aluminum doping. The SEM images showed a
Aluminum foil The aluminum foil is a rolled out aluminum coil by an aluminum foil rolling mill and then split and annealed as needed. These products have excellent ductility, mechanical processing, easy surface treatment, coloring and printing, metallic luster on the surface, high barrier properties, strong shading and resistance, etc. They are generally found in
Aluminum foil is the predominant cathodic current collector in lithium-based batteries due to the high electronic conductivity, stable chemical/electrochemical properties, low density, and low cost. However, with the development of next-generation lithium batteries, Al current collectors face new challenges, such as the requirement of increased chemical stability at high voltage, long-cycle
The cell using GLC-Al foil can greatly reduce the potential polarization in Li-S batteries and can obtain a reversible capacity of 750 mAh g-1 over 100 cycles at 0.5 C. Even with high sulfur
The bare Al foil sample showed a relatively clean surface without pits and cracks. The presence of the striped patterns is an evidence of rolling process during the production of Al foils from slabs. In contrast, the coated foil exhibited a compley different morphology. Even though the rolling patterns can still be observed, the coated foil
In high-voltage Li-ion batteries, the GLC-Al foil significantly improves the high-rate performance, showing an increased retained capacity by over 100 mAh g-1 after 450 cycles at 1C compared to the bare foil. It is believed that the developed GLC-Al foil brings new opportunities to enhance the battery life of lithium-based
We developed a universally applicable roll-to-roll mechanical prelithiation method and successfully prelithiated Sn foil, Al foil and Si/C anodes. The as-prepared Li x Sn foil exhibited an increased ICE from 20% to 94% and achieved 200 stable cycles in LiFePO 4 //Li x Sn full cells at ∼2.65 mA h cm
The Al foil was fully recovered attributed to the inhibitory effect of the citrate formed in the EG-CA leaching system. The glycol-based separation process is effective in achieving rapid separation of the collector from the electrode material. H. Wang, J. Liu, X. Bai, S. Wang, D. Yang, Y. Fu, Y. He. Separation of the cathode materials from
The introduction of a moderate thermal-contact stress upon the Cu foil during the annealing leads to the formation of high-index grains dominated by the thermal strain of the Cu foils, rather than the (111) surface driven by the surface energy. Besides, the designed static gradient of the temperature enables the as-formed high-index grain seed
stable and conductive Al foil as a current collector may bring new opportunities to further improve the battery life of Li (-ion) batteries. RESULTS AND DISCUSSION Physical characterizations of as-prepared Al foils are illustrated in Figure 1. Compared to the bare Al foil (Figure 1a), the Al foil with the GLC-coating layer demonstrates a dark
Particles were distributed over the aluminum foil surface, measuring approximay 0.2 µm in size and identified as γ-Al 2 O 3 crystals through selected-area diffraction and EDX. γ-Al 2 O 3 crystals remained at the center of the half-cubic pit, with a portion distributed along the rolling lines, exhibiting behavior similar to that of MgAl 2
Using Al foil as the substrate for Cu2ZnSnS4 (CZTS) easily leads to oxidation, forming a high-resistance Al2O3 film that increases structural resistance. Herein, a plasma cleaning technology was developed for the surface treatment of Al foil. As the plasma cleaning voltage and time increased, the activation energy of A on Al foil decreased, enabling aluminum doping. The SEM images showed a