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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, DanohPark, JinseokKim, KyumanLee, Lee SeolSeo, Jung YoonOh, You-KwanKim, Yong-JooRyou, Myung-HyunLee, Yong MinLee, Kyubock
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
Related Researcher
Files:
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Collection:
Department of Energy Science and EngineeringBattery Materials & Systems LAB1. Journal Articles


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