Engineering-Research-Activity2016｜SHINSHU UNIV.

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Takeuchi LabInourlaboratory,wearestudyingthenanocarbons(carbonmaterialswithinnovativefunctionsbyprecisestructurecontrolinnanometerlevel)representedbythecarbonnanotubewhichisregardedasthe21stcenturymaterial.Byprecisestructurecontrolofthenanocarbon,wehaveappliedtohigh-functionalnanocomposite,ultralightweightwire,high-performancelithiumionbatteryandelectricdoublelayercapacitor,nextgenerationfuelcellandhigh-performancemembrane.Carbonisan‘‘oldbutnew’’material.Ithasbeenattractingattentionasanadvancedmaterial..Nanocarboncanbeappliedtovariousfieldsbyprecisestructurecontrolinatomicandmolecularlevel.Lithiumionbatterythatisusedincellphones,notebookcomputersandelectricvehicleshaveahighperformance,butcapacityisnotstillenough.However,itispredictedthatlithiumionbatteryshowhighcapacityofmorethanthecurrent10timesbythenovelnanocarboninthenearfuture.Currently,watershortageisabigproblemallovertheworld.Thecurrentreverseosmosismembranehaveahighperformancebutchemicalresistanceanddurabilityarenotenough,thereforepracticaluseisnotprogressing.So,wewillactivelypromotetheinnovativewaterseparationmembranewithrobustbyusingnanocarbons.KenjiTakeuchiAssociate ProfessorGraduated ShinshuUniversity,Main research field insynthesis of nanocarbonsand their applications. Structural models of nanocarbonfamily (left side) and high resolution electron microscope images of double-walled carbon nanotubes.Challenge to Environmental Issues using Nanocarbonsof 21st Century MaterialIn the FutureStructural model of robust and high performance membrane using structure controlled nanocarbons.ResearchTanaka LabThemaininterestofourlaboratoryistostudytheionictransportpropertiesofinorganicmaterialswithcrystaldefectsandhetero-materialinterfaces.Thedesignoftheinterfacebetweentheelectrodeandtheelectrolyteisakeyissueforsolid-stateenergystoragedevices,andtheirpropertiescouldbeadecisivefactortoimprovetheperformanceofthedevice.Weareintensivelystudying,analyzinganddesigningthenextgenerationofionic-conductivematerialsandtheirinterfaces,inacooperativeeffortwithProf.Teshimaandhisgroup.Inthesmartsocietytocome,therewillbeastrongdemandofsafeandreliableenergystoragedeviceswithhighenergydensityandgoodusability.Tomeetthisdemand,innovativeimprovementofLithium-ionbatteries(LIB)isrequired.All-solid-stateionbatteriesareexpectedtobewidelyusedasmobilestoragedevicesbecauseoftheirnon-flammabilityadvantage.Thekeyissuetoaccomplishthisparadigmshiftistounderstandtheionictransportphenomenaintheelectrodeandelectrolytematerialsandattheinterfacebetweenthesematerials.Basedonthisknowledge,thepropermaterialandinterfacedesignwillenableustoenhancetheperformanceofLIB.AtsushiTanakaProfessor1981 M.S. Tokyo Univ.1985 Fujitsu Labs. LTD.2002Ph.D. Tohoku Univ.2013 Prof. ShinshuUniv.Main research fields are nano-structured materialsand their physics. Evolutional Design for the Next Generation Ionic Conduction MaterialsSchematic structure of a thin film all-solid-state LIB. Our main interest is the ionic transport at the electrode/electrolyte interface.In the FutureResearch Cross-sectional view of the multilayered magnetic/non magnetic film of a test device. The ionic transport at the interface of electrode/ electrolyte is investigated in similar structures.70

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