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Marka warshadda baabuurta korontada (EV) ay koraan, sidaas oo kale cilmi-baarista iyo horumarinta baytariyada lithium-ion ee tayada sare leh ee iyaga awood u leh.Cilmi-baadhista iyo balaadhinta tignoolajiyada dallacaadda degdega ah iyo dallacaadda, iyo sidoo kale kordhinta nolosha batteriga, ayaa ah hawlo muhiim u ah horumarkeeda.
Dhowr arrimood, sida sifooyinka is-dhexgalka electrode-electrolyte, fidinta lithium ion diffusion, iyo porosity electrode, ayaa kaa caawin kara inaad ka gudubto dhibaatooyinkan oo aad ku guulaysato lacag degdeg ah iyo nolol dheer.
Dhowrkii sano ee la soo dhaafay, laba-cabbir (2D) nanomaterials (qaab-dhismeedka xaashida dhowr nanometer qaro weyn) ayaa u soo baxay sidii walxo anode ah oo suurtagal ah baytariyada lithium-ion.Nanosheets-yadani waxay leeyihiin cufnaanta goobta firfircoon ee sare iyo saamiga dhinaca sare, taas oo gacan ka geysanaysa ku dallacaadda degdegga ah iyo sifooyinka baaskiil wadida aadka u fiican.
Gaar ahaan, nanomaterials laba-cabbir ah oo ku salaysan kala-guurka diborides biraha (TDM) ayaa soo jiitay dareenka bulshada sayniska.Thanks to dayuuradaha malabka ee atamka boron iyo biraha kala-guurka ee kala duwan, TMDs waxay soo bandhigaan xawaare sare iyo xasilloonida muddada dheer ee wareegyada kaydinta lithium ion.
Waqtigan xaadirka ah, koox cilmi-baaris ah oo uu hoggaaminayo Prof. Noriyoshi Matsumi oo ka tirsan Machadka Sare ee Sayniska iyo Teknolojiyadda ee Japan (JAIST) iyo Prof. Kabir Jasuja oo ka tirsan Machadka Teknolojiyadda Hindiya (IIT) Gandhinagar ayaa ka shaqeynaya inay sii sahamiyaan suurtagalnimada kaydinta TMD.
Kooxdu waxay samaysay daraasaddii ugu horreysay ee tijaabo ah oo ku saabsan kaydinta titanium diboride (TiB2) nanosheets heer sare ah (THNS) sida walxaha anode ee baytariyada lithium-ion.Kooxda waxaa ka mid ahaa Rajshekar Badam, macalinkii hore ee JAIST, Koichi Higashimin, Khabiirka Farsamada JAIST, Akash Varma, ardaydii hore ee JAIST, iyo Dr. Asha Lisa James, arday IIT Gandhinagar.
Faahfaahinta cilmi-baaristooda ayaa lagu daabacay ACS Applied Nano Materials waxaana laga heli doonaa onlayn Sebtember 19, 2022.
TGNS waxaa lagu helay oksaydheynta budada TiB2 oo leh hydrogen peroxide oo ay ku xigto centrifugation iyo lyophilization ee xalka.
Maxaa shaqadeena ka dhigaya mid soo ifbaxaya waa miisaanka hababka loo sameeyay si loo habeeyo nanosheets TiB2.Si nanomaterial kasta loogu beddelo tignoolajiyad la taaban karo, miisaanku waa qodobka xaddidaya.Habkayaga synthetic wuxuu u baahan yahay oo kaliya kicin, uma baahna qalab casri ah.Tan waxa u sabab ah kala diridda iyo habdhaqanka dib-u-cystallization ee TiB2, taas oo ah daahfur shil ah oo ka dhigaysa shaqadan buundo rajo leh oo ka timaada shaybaarka ilaa garoonka.
Ka dib, cilmi-baarayaashu waxay naqshadeeyeen unug nuska lithium-ion anode ah iyagoo isticmaalaya THNS sida walxaha firfircoon ee anode waxayna baareen guryaha kaydinta ee THNS-ku salaysan.
Cilmi-baadhayaashu waxay ogaadeen in anode-ku-salaysan ee THNS uu leeyahay awood dheecaan sare leh oo ah 380 mAh / g cufnaanta hadda ee 0.025 A / g.Intaa waxaa dheer, waxay arkeen awoodda dheecaanka ah ee 174mAh / g cufnaanta hadda jirta ee 1A / g, awoodda xajinta 89.7%, iyo waqti lacag ah 10 daqiiqo ka dib wareegyada 1000.
Intaa waxaa dheer, lithium-ion anodes-ku-saleysan THNS waxay u adkeysan karaan qulqulo aad u sarreeya, laga bilaabo 15 ilaa 20 A/g, iyagoo siinaya dallaco degdeg ah oo ku saabsan 9-14 ilbiriqsi.Xadhkaha sare, xajinta awooddu waxa ay dhaaftaa 80% kadib 10,000 wareeg.
Natiijooyinka daraasaddan ayaa muujinaya in 2D TiB2 nanosheets ay yihiin murashaxiin ku habboon in si degdeg ah loogu dallaco baytariyada lithium-ion nolosha dheer.Waxay sidoo kale muujinayaan faa'iidooyinka alaabta nanoscale sida TiB2 ee guryaha wanaagsan oo ay ku jiraan awoodda xawaaraha sare ee aadka u wanaagsan, kaydinta kharashka pseudocapacitive iyo waxqabadka baaskiil wadida aad u fiican.
Tignoolajiyadan degdegga ah ee dallacadu waxay soo dedejin kartaa caannimada baabuurta korontadu waxayna aad u yaraynaysaa wakhtiga sugitaanka ee lagu dallaco aaladaha elektaroonigga ah ee mobilada ee kala duwan.Waxaan rajeyneynaa in natiijooyinkayagu ay dhiirigelin doonaan cilmi-baaris dheeraad ah oo ku saabsan aaggan, taas oo ugu dambeyntii u keeni karta raaxo isticmaalayaasha EV, yareyn karta wasakhowga hawada magaalada, oo yareyn karta walbahaarka la xidhiidha nolosha wareega, taas oo kordhinaysa wax soo saarka bulshadeena.
Kooxdu waxay rajaynaysaa tignoolajiyadan cajiibka ah in loo isticmaali doono baabuurta korontada ku shaqeysa iyo kuwa kale ee elegtarooniga ah dhawaan.
Varma, A., iyo al.(2022) Nanosheet heersare ah oo ku salaysan titanium diboride sida walxaha anode ee baytariyada lithium-ion.Nanomaterials ACS ee la dabaqay.doi.org/10.1021/acsanm.2c03054.
Wareysigan oo ka dhacay Pittcon 2023 ee Philadelphia, PA, waxaan kala hadalnay Dr. Jeffrey Dick shaqadiisa xagga kimistariga mugga hoose iyo aaladaha nanoelectrochemical.
Halkan, AZoNano waxay kala hadashaa Drigent Acoustics wax ku saabsan faa'iidooyinka graphene ay u keeni karto codadka iyo tignoolajiyada maqalka, iyo sida xiriirka shirkadu la leedahay calanka graphene u qaabeeyay guusheeda.
Wareysigan, KLA's Brian Crawford wuxuu sharxayaa wax kasta oo jira in laga ogaado nanoindentation, caqabadaha hadda horyaala garoonka, iyo sida looga gudbi karo.
Autosampler-ka cusub ee AUTOsample-100 wuxuu la jaan qaadayaa benchtop 100 MHz NMR spectrometers.
Vistec SB3050-2 waa nidaam lithography e-beam casri ah oo leh tignoolajiyada laydhka qallafsan ee codsiyada kala duwan ee cilmi baarista iyo horumarinta, prototyping iyo wax soo saarka yar yar.