2020-2022 YAMAGATA UNIVERSITY Research Seeds Collection

26/90

We need the high accurate A/D convertor with linear sampling in ●Simple and reasonable model should be applied. It enables t0.5scale. It enables us to simplify the measurement equipment us to hear the whisper of data.and data analysis.●We need the high accurate A/D convertor with linear The above improvement makes the simple and useful BMS for sampling in t0.5 scale. It enables us to simplify the LIB systems.measurement equipment and data analysis.●The above improvement makes the simple and useful BMS Yamagata UniversityGraduate School of Science and Engineering Research Interest ：Electrochemistry of BatteriesYamagata University Graduate School of Science and Engineering E-mail: nishina@yz.yamagata-u.ac.jpResearch InterestElectrochemistry of BatteriesTel & Fax: +81-238-26-378124IC package, CFRP・・・・moldingcrosslinkerinorganic fillerThermosetting resindiscardfinaldisposallandfillincinerationlaboratory/biochemistry/organic/labo_023/Content：We successes the derivation of basic equation and its analytical ●We successes the derivation of basic equation and its solution for Piggyback Stacked Dual Transmission Line Model.analytical solution for Piggyback Stacked Dual Transient response of working LIB follows the series-connected 2 Transmission Line Model.●Transient response of working LIB follows the series-dual transmission line model within 1 mV residuals.connected 2 dual transmission line model within 1 mV Positive electrode controls the total overvoltage of working LIB residuals.due to Ram> 10 Rel.●Positive electrode controls the total overvoltage of working It was found that Ram≦Relfor negative electrode.LIB due to Ram > 10 Rel.Reduce Ramof positive electrode for high rate performance of LIB.●It was found that Ram ≦ Rel for negative electrode.●Reduce Ram of positive electrode for high rate performance AC impedance method was not suitable for BMS due to time of LIB.expense feature of very low frequency less than 1 mHz.●AC impedance method was not suitable for BMS due to time expense feature of very low frequency less than 1 Appealing point：mHz.Simple and reasonable model should be applied. It enables us to hear the whisper of data.Special objectivesChemical Material RecyclingE-mail ・ nishina@yz.yamagata-u.ac.jpHP: https://c1.yz.yamagata-u.ac.jp/Tel & Fax ・ +81-238-26-3781HP・https://c1.yz.yamagata-u.ac.jp/ContentContent：　IC package for electronic products, tire for car and CFRP ICpackageforelectronicproducts,tireforcarandCFRP(Carbon(Carbon Fiber Reinforced Plastic) for airplane have been FiberReinforcedPlastic)forairplanehavebeenconstantlyconstantly improved, however their material recycling improved,howevertheirmaterialrecyclingprocesshasnotyetbeenprocess has not yet been examined because of their high examinedbecauseoftheirhighphysicalandmechanicalstabilities.physical and mechanical stabilities. Tire structure is Tirestructureisreinforcedbyrubbervulcanizationandepoxyresinreinforced by rubber vulcanization and epoxy resin covering coveringICpackageandthecarbonfiberinCFRPisstabilizedbyIC package and the carbon fiber in CFRP is stabilized by curingreactionamongpolymermatrix.curing reaction among polymer matrix.Recently,wehavefoundthesolubilizationoforganiccomponents　Recently, we have found the solubilization of organic containedinICpackage,tireandCFRPbythetreatmentinhighcomponents contained in IC package, tire and CFRP by the temperaturefluidataround200oC.Inthesetreatments,alcoholictreatment in high temperature fluid at around 200℃. In these compoundssuchasn-heptanolwereeffectiveonthesolubilization.treatments, alcoholic compounds such as n-heptanol were Wehaveconfirmedthatalcoholiccompoundscontributestotheeffective on the solubilization. We have confirmed that scissionofbridgingbondsamongpolymermatrix.alcoholic compounds contributes to the scission of bridging bonds among polymer matrix.Appealingpoint：100%recyclingofthermosettingresinwasattainedbytheliquidSpecial objectivesphasetreatmentataround200oC.Chemicalmaterialrecyclingofpolymericwastesiseffectiveutilizationmethodofpolymericwastes.　100% recycling of thermosetting resin was attained by the liquid phase treatment at around 200℃. Chemical material recycling of polymeric wastes is effective utilization method Yamagata UniversityGraduate School of Science and Engineering of polymeric wastes.Research Interest ：Chemical Material RecyclingYamagata University Graduate School of Science and EngineeringE-mail : tagaya@yz.yamagata-u.ac.jpResearch InterestTel : 0238-26-3115Fax : 0238-26-3413E-mail ・ tagaya@yz.yamagata-u.ac.jpHP :http://acebe.yz.yamagata-u.ac.jp/Tel ・ 0238-26-3115Fax ・ 0238-26-3413HP・http://acebe.yz.yamagata-u.ac.jp/　　laboratory/biochemistry/organic/labo_023/Contentfor LIB systems.Material flowmonomerpolymerizationprepolymerdissolution200～～300oCcomplete recyclingby using alcoholchemical material recycling<elimination of crosslinking>Non-dissolutionInorganic fillerChemical Material Recycling： Utilization of Waste Organic ResourcesChemical Material Recycling：：Utilization of Waste Organic ResourcesProfessor Hideyuki TagayaProfessor, Hideyuki TagayaHow to Get Information from Working LIB with Simple Equipment?How to Get Information from Working LIB with Simple Equipment?Professor Tatsuo NishinaProfessorTatsuo Nishina