Novel carbon coating on aluminum current collectors for lithium-ion batteries

نویسندگان

چکیده

Abstract In this work a significant improvement of the performance LiFePO 4 (LFP) composite cathodes, in particular at high rates (up to 12C), is demonstrated by use carbon-coated aluminum current collectors. The coating procedure novel, and allows for application thin carbon layer without solvent binder. presence verified collecting Raman spectra. spectra are dominated D-band, indicating low degree graphitization amount disordered sample. LFP cathodes with an area capacity 1.7 mAh/cm 2 show excellent rate capability 89% upon cycling 5C. A dramatic reduction contact resistance towards active cathode material has been coated It furthermore shown that electrochemical impedance applied on uncoated collectors resistance, while charge transfer dominates spectrum collector. Article Highlights novel solvents binders considerably improved when onto between collector almost eliminated

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ژورنال

عنوان ژورنال: SN applied sciences

سال: 2022

ISSN: ['2523-3971', '2523-3963']

DOI: https://doi.org/10.1007/s42452-022-05103-y