Timagwiritsa ntchito makeke kuti tiwongolere luso lanu.Mukapitiliza kusakatula tsamba ili, mukuvomera kugwiritsa ntchito ma cookie.Zambiri.
Pamene makampani amagetsi amagetsi (EV) akukula, momwemonso kafukufuku ndi chitukuko cha mabatire apamwamba a lithiamu-ion omwe amawapatsa mphamvu.Kafukufuku ndi kukulitsa matekinoloje othamangitsa ndi kutulutsa mwachangu, komanso kukulitsa moyo wa batri, ndi ntchito zofunika kwambiri pakukula kwake.
Zinthu zingapo, monga mawonekedwe a mawonekedwe a electrode-electrolyte, diffusion ya lithiamu ion, ndi electrode porosity, zingathandize kuthana ndi mavutowa ndikukwaniritsa kulipira mwachangu komanso moyo wautali.
Pazaka zingapo zapitazi, awiri-dimensional (2D) nanomatadium (mapepala opaka ma nanometers ochepa) adatuluka ngati zida za anode zamabatire a lithiamu-ion.Ma nanosheetwa ali ndi kachulukidwe kachulukidwe katsamba katsamba komanso kachulukidwe kakang'ono, zomwe zimathandizira kuti azilipira mwachangu komanso mawonekedwe abwino kwambiri apanjinga.
Makamaka, awiri-dimensional nanomatadium kutengera kusintha kwazitsulo diborides (TDM) adakopa chidwi cha asayansi.Chifukwa cha ndege za zisa za maatomu a boron ndi zitsulo zosinthika zambiri, ma TMD amawonetsa kuthamanga kwambiri komanso kukhazikika kwanthawi yayitali kwa ma lithiamu ion kusungirako.
Pakalipano, gulu lofufuza lotsogozedwa ndi Prof. Noriyoshi Matsumi wa Japan Advanced Institute of Science and Technology (JAIST) ndi Prof. Kabir Jasuja wa Indian Institute of Technology (IIT) Gandhinagar akugwira ntchito kuti apitirize kufufuza momwe angathere kusungirako TMD.
Gululo lachita kafukufuku woyamba woyendetsa kusungirako titanium diboride (TiB2) hierarchical nanosheets (THNS) monga zipangizo za anode zamabatire a lithiamu-ion.Gululi linaphatikizapo Rajashekar Badam, yemwe kale anali JAIST Senior Lecturer, Koichi Higashimin, JAIST Technical Expert, Akash Varma, yemwe kale anali wophunzira wa JAIST, ndi Dr. Asha Lisa James, wophunzira wa IIT Gandhinagar.
Tsatanetsatane wa kafukufuku wawo adasindikizidwa mu ACS Applied Nano Materials ndipo ipezeka pa intaneti pa Seputembara 19, 2022.
TGNS inapezedwa ndi makutidwe ndi okosijeni wa TiB2 ufa ndi hydrogen peroxide ndikutsatiridwa ndi centrifugation ndi lyophilization ya yankho.
Chomwe chimapangitsa kuti ntchito yathu ikhale yodziwika bwino ndikukula kwa njira zomwe zimapangidwa kuti ziphatikize ma nanosheets a TiB2 awa.Kutembenuza ma nanomaterial kukhala ukadaulo wogwirika, scalability ndiye chinthu cholepheretsa.Njira yathu yopangira zinthu imangofuna chipwirikiti ndipo safuna zida zapamwamba.Izi ndichifukwa chakuwonongeka ndi kukonzanso kwa TiB2, komwe ndi kutulukira mwangozi komwe kumapangitsa kuti ntchitoyi ikhale mlatho wodalirika kuchokera ku labu kupita kumunda.
Pambuyo pake, ofufuzawo adapanga anode lithiamu-ion theka la cell pogwiritsa ntchito THNS ngati anode yogwira ndikufufuza zachitetezo chamtundu wa anode yochokera ku THNS.
Ofufuzawo adazindikira kuti anode yochokera ku THNS ili ndi mphamvu yotulutsa kwambiri ya 380 mAh/g pa kachulukidwe kake ka 0.025 A/g.Kuphatikiza apo, adawona kutulutsa kwa 174mAh / g pakuchulukira kwakukulu kwaposachedwa kwa 1A / g, kusunga mphamvu kwa 89.7%, ndi nthawi yolipiritsa ya mphindi 10 pambuyo pa 1000 kuzungulira.
Kuphatikiza apo, THNS yochokera ku lithiamu-ion anode imatha kupirira mafunde okwera kwambiri, kuyambira pafupifupi 15 mpaka 20 A/g, ndikupereka kuyitanitsa kopitilira muyeso pafupifupi masekondi 9-14.Pamafunde apamwamba, kusungirako mphamvu kumaposa 80% pambuyo pa mizungu 10,000.
Zotsatira za kafukufukuyu zikuwonetsa kuti 2D TiB2 nanosheets ndi oyenera kuyitanitsa mwachangu mabatire a lithiamu-ion amoyo wautali.Amawonetsanso zabwino za zida zochulukirapo za nanoscale monga TiB2 pazinthu zabwino kuphatikiza kuthamanga kwambiri, kusungirako pseudocapacitive charge komanso kuyendetsa bwino njinga.
Ukadaulo wothamangitsa mwachanguwu ukhoza kufulumizitsa kutchuka kwa magalimoto amagetsi ndikuchepetsa kwambiri nthawi yodikirira pakulipiritsa zida zosiyanasiyana zamagetsi.Tikukhulupirira kuti zotsatira zathu zidzalimbikitsa kufufuza kwina m'derali, zomwe zingathe kubweretsa mosavuta kwa ogwiritsa ntchito EV, kuchepetsa kuwonongeka kwa mpweya wa m'tawuni, ndi kuchepetsa nkhawa zomwe zimagwirizanitsidwa ndi moyo wa m'manja, potero kuonjezera zokolola za anthu athu.
Gululi likuyembekeza kuti luso lodabwitsali lidzagwiritsidwa ntchito m'magalimoto amagetsi ndi magetsi ena posachedwa.
Varma, A., et al.(2022) Hierarchical nanosheets zochokera titaniyamu diboride monga anode zipangizo mabatire lithiamu-ion.Ntchito nanomatadium ACS.doi.org/10.1021/acsanm.2c03054.
M'mafunsowa ku Pittcon 2023 ku Philadelphia, PA, tinayankhula ndi Dr. Jeffrey Dick za ntchito yake mu chemistry yochepa komanso zida za nanoelectrochemical.
Apa, AZoNano imalankhula ndi Drigent Acoustics zaubwino womwe graphene angabweretse kuukadaulo wamawu ndi ma audio, komanso momwe ubale wamakampani ndi mbiri yake ya graphene wathandizira kupambana kwake.
M'mafunsowa, Brian Crawford wa KLA akufotokoza zonse zomwe muyenera kudziwa zokhudza nanoindentation, mavuto omwe akukumana nawo panopa, komanso momwe angawathetsere.
AUTOsample-100 autosampler yatsopano imagwirizana ndi ma spectrometer a benchtop 100 MHz NMR.
Vistec SB3050-2 ndi dongosolo lamakono la e-beam lithography lomwe lili ndi teknoloji yopunduka yamtengo wapatali yogwiritsira ntchito ntchito zosiyanasiyana pa kafukufuku ndi chitukuko, prototyping ndi kupanga pang'ono.