کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4907933 | 1426578 | 2017 | 5 صفحه PDF | دانلود رایگان |
- A simple method for fabricating a crater-like architectural aluminum current collector is reported.
- The cell using crater-like architectural aluminum current collector exhibits superior electrochemical performance.
- The improved electrochemical performance arises from good electrical contact between the particles and current collector.
Crater-like architectural aluminum current collectors is prepared by a simple chemical etching method with NaOH-based solutions, and investigate the effect of aluminum surface morphology on its electrochemical performance as cathode current collector in Li-ion batteries. Characterization data reveal an acceptable tensile strength and surface hydrophilicity in the etched aluminum current collector, together with the creation of a rough surface with many reticular crater-like pits. In Li-ion cells using LiCoO2 as the active material, the crater-like architectural aluminum foil is electrochemically stable as the current collector, when in contact with other cell components during the charge-discharge processes. The improved electrochemical performance is attributed to the good electrical contact between cathode material particles and the current collector, and the resulting efficient electron transfer.
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Journal: Journal of Electroanalytical Chemistry - Volume 797, 15 July 2017, Pages 37-41