A team of researchers from the Georgia Institute of Technology, led by Matthew McDowell, Associate Professor in the George W. Woodruff School of Mechanical Engineering and the School of Materials Science and Engineering, is using aluminum foil to create batteries with higher energy density and greater stability.
“Our new aluminum foil anode demonstrated markedly improved performance and stability when implemented in solid-state batteries, as opposed to conventional lithium-ion batteries.” The team observed that the aluminum anode could store more lithium than conventional anode materials, and therefore more energy.
The proposed surface architecture and working mechanism of lithium supplement could effectively eliminate the remaining challenges of high-capacity Al anodes, promoting the possibility of using commercial aluminum foils as single-material anodes for high energy density lithium-ion batteries.
In summary, low-cost aluminum foils are employed as single-material anodes for Li-ion batteries that can match various commercial cathodes and potentially achieve higher energy densities. The roles of pre-lithiation, phase change, and morphology evolution on commercial Al foil anodes are comprehensively studied in Al||NCM full batteries.
The electrochemical performance of commercial Al foils with different thicknesses (200 μm, 100 μm, 50 μm, and 30 μm) as anodes were compared (Fig. S1, Supporting Information), and the 200 μm-thick Al foil which exhibited the best cycling performance was selected to investigate its morphology and composition after pre-lithiation.
This lithiation behavior can avoid the severe stress concentration during alloying to prevent the perforation and pulverization of foil, making commercial Al foil succeed as single-material anodes. The produced commercial Al foil anode-based Li-ion batteries employing various commercial cathodes demonstrate promising electrochemical performances.
A team of researchers from the Georgia Institute of Technology is using aluminum foil to create batteries with higher energy density and greater stability that may, one day, power...
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A team of researchers from the Georgia Institute of Technology, led by Matthew McDowell, Associate Professor in the George W. Woodruff School of Mechanical Engineering and the …
A team of researchers from the Georgia Institute of Technology is using aluminum foil to create batteries with higher energy density and greater stability that may, one …
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