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Recycling oil-extracted microalgal biomass residues into nano/micro hierarchical Sn/C composite anode materials for lithium-ion batteries

Title
Recycling oil-extracted microalgal biomass residues into nano/micro hierarchical Sn/C composite anode materials for lithium-ion batteries
Authors
Song, Dan OhPark, Jin SeokKim, Kyu ManLee, Lee SeolSeo, Jung YoonOh, You KwanKim, Yong JooRyou, Myung HyunLee, Yong MinLee, Kyu Bock
DGIST Authors
Lee, Yong Min
Issue Date
2017-10
Citation
Electrochimica Acta, 250, 59-67
Type
Article
Article Type
Article
Keywords
AnodesBiofuel ProductionBiofuelsBiomassElectric BatteriesElectrochemical PerformanceElectrodesElectronic WasteExtractionHigh Energy DensitiesHomogeneous DistributionIonsLipid ExtractionLithiumLithium CompoundsLithium Ion BatteriesMicro AlgaeMicroalgal BiomassTinTin Anodes
ISSN
0013-4686
Abstract
We introduce a novel approach for the high-value production of nano/micro hierarchical structured Sn anodes for lithium-ion batteries (LIBs) by utilizing microalgal biomass residues that collaterally form during oil extraction for biofuel production. The Sn/C composites made from the oil-extracted microalgal biomass residues (the extracted Sn/C) exhibit the following advantages as high-energy-density anodes: 1) a homogeneous distribution of Sn nanoparticles in the carbon matrix (Sn/C), which efficiently relieves the strain caused by volume changes of the active materials; 2) a high porosity of Sn/C composites; and 3) a homogeneous distribution of the hetero elements N and P in the carbon matrix. Overall, the extracted Sn/C exhibit improved electrochemical performance in LIBs compared with the Sn/C composites made from the microalgal biomass residues without oil extraction (non-extracted Sn/C). The extracted Sn/C have improved rate capabilities (160.0 and 72.9 mAh g−1 for the extracted Sn/C and the non-extracted Sn/C, respectively, at the 80th cycle, 3.5 A g−1) and improved cycle performances (511.7 and 493.2 mAh g−1 for the extracted Sn/C and the non-extracted Sn/C, respectively, at the 300th cycle, 200 mA g−1). © 2017 Elsevier Ltd
URI
http://hdl.handle.net/20.500.11750/5646
DOI
10.1016/j.electacta.2017.08.045
Publisher
Elsevier Ltd
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Files:
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Collection:
ETC1. Journal Articles


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