工学部_研究紹介_2019_英語版

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ZettsuLabTheZettsugroup,incollaborationwithProf.Teshimagroup,focusesonthechemistryandphysicsofmaterialsforenergystorage,primarilyintheareaofall-solid-stateLithium-ionrechargeablebatteries.Ourgoalsaretoimprovetheenergydensity,increasethesafety,decreasethecostandimprovethecycleandcalendarlifetimeofthebatteriesthroughthedevelopmentofnewmaterialsandtherealizationofphase-interfacephenomenaforhighlyefficientenergyutilization.Spreadingthenextgenerationsmarttechnologiessuchaselectricvehicles,smarthouse,andsmartgridwillpromote“electriclife”whichconnectpeopleandthings,peopletopeople,andfinallyuptothingsandthingsthroughthevariousmediasociety.Webelievethatwecancontributetoimprovetheinfrastructureandthevalueoflifethroughtheinnovationofbatterytechnology.NobuyukiZettsuProfessorHe completed doctoral degree in Tokyo Institute of Technology, and has started to work as a professor in Shinshu Univ. in 2013.Hyperspace Control Crystalline Materials for the Innovative Energy Storage DevicesOurgroupmemberswillhaveexcellentopportunitiesformasteringnewexperimentalskillsandresearchstrategywithbroadviewswhatareneedsforbuildingacomprehensivetheory.Graduateswillplayanactiveroleasresearchers/engineersinvariousfieldsrelevanttoenergyconversionandmanagements.In the FutureAfter GraduationSchematicillustration of all-solid state Lithium ion rechargeable batteries. Directly connected cells enable smaller cell-package and 7 times increase in the energy density. Wearedoingthesynthesis,structuralanalysis,andphysicalpropertycharacterizationofthebatterymaterialsusingvariousstate-of-theartequipment.MaterialsChemistrySynthesis of Novel MaterialsUsing Ceramic ProcessingTarutaLabCeramicmaterialshavemanyusefulproperties,buttheir“brittleness”and“hardmachinability”thatareessentiallytheirweakpointslimittheirapplication.TarutaLabstudiesthesynthesisofceramiccompositesusingcarbonnanotubes(CNTs)andmicasinordertoimprovethe“brittleness”ofceramicsandrealizethemachinableceramicswithhighmechanicalproperties.Micashavebeenappliedinvariousfields,suchascosmeticsandpaintsetc.Inthesedepartments,micashavebeenstudiedformorethan40years.TakingOversuchstudies,TarutaLabinvestigatesthenovelfunctionssuchasionicconductivityandluminescence.TheCNTs/ceramiccompositesandmica/ceramiccompositeshavebeenstudiedinordertodevelophighperformancebio-ceramicssuchasartificialjointswithlongerlife,bioactiveartificialboneswithhighmechanicalpropertiesanddentalceramicmaterialswithmachinability.Inaddition,ionicconductivityofmanytypesofmicashasbeenstudiedtoapplymicasassolidelectrolytesforfuelcells.Thetransparentmicaglass-ceramicsdopedwithrareearthmaybeappliedasnovelluminescentmaterialsforwhiteLEDbecausetheyemitredandbluelights.SeiichiTarutaProfessor He received his doctor’s degree of engineering from Tokyo Institute of Technology. He is specialized in inorganic chemistry and inorganic materials chemistry.Materialschemistrycoversabroadrangeofsciences,sostudentscanadaptinmanyindustrialfields.TarutaLab.alumniworkinmanydifferentkindsofindustries,particularlyinthefieldofmaterialsandchemistry.2m5mmThis photo shows that CNTs prevent the propagation of cracks in ceramics..This zirconia ceramics in the photo can be machined with conventional drilling tools..Luminescence of transparent mica glass-ceramics doped with rare earth under UV light.EmissionofbluelightunderUVlightUndervisiblelight5mmTransmission electron microscopic photograph of transparent mica glass-ceramics.In the FutureAfter GraduationMaterialsChemistry10