Matou te fa'aogaina kuki e fa'aleleia ai lou poto masani.I le fa'aauauina o le su'esu'eina o lenei 'upega tafa'ilagi, ua e ioe i le matou fa'aogaina o kuki.Fa'amatalaga atili.
A'o fa'atupula'ia le ta'avale eletise (EV), e fa'apea fo'i le su'esu'ega ma le atina'eina o ma'a lithium-ion maualuga e fa'aola ai.O su'esu'ega ma fa'alauteleina o tekonolosi fa'anatinati ma fa'aolaina, fa'apea fo'i ma le fa'alauteleina o le ola maa, o galuega autu ia i lona atina'eina.
Ole tele o mea, e pei ole electrode-electrolyte interface features, lithium ion diffusion, ma electrode porosity, e mafai ona fesoasoani e foia nei faʻafitauli ma ausia ai le vave faʻatumu ma faʻalauteleina le ola.
I nai tausaga ua tuanaʻi, ua tulaʻi mai ni mea faʻapitoa e lua (2D) nanomaterials (pepa faʻatulagaina o ni nai nanometers mafiafia) ua tulaʻi mai e avea ma mea e ono mafai ona faʻaogaina mo maa lithium-ion.O nei nanosheets o loʻo i ai le maualuga o le nofoaga o loʻo galue ma maualuga le fua faʻatatau, lea e saofagā i le vave faʻapipiʻiina ma uiga lelei o le uila.
Aemaise lava, o mea e lua-dimensional nanomaterials e faʻavae i luga o suiga uʻamea diborides (TDM) na tosina mai ai le mafaufau o le sosaiete faasaienisi.Fa'afetai i va'alele meli o boron atoms ma multivalent transition metals, TMDs fa'aalia le saoasaoa maualuga ma le mautu umi o ta'amilosaga teuina o lithium ion.
I le taimi nei, o se au suʻesuʻe e taʻitaʻia e Prof. Noriyoshi Matsumi o le Iapani Advanced Institute of Science and Technology (JAIST) ma Prof. Kabir Jasuja o le Indian Institute of Technology (IIT) Gandhinagar o loʻo galue e suʻesuʻe atili le faʻaogaina o le teuina o le TMD.
Ua faia e le vaega le suʻesuʻega pailate muamua i le teuina o titanium diboride (TiB2) hierarchical nanosheets (THNS) e fai ma anode mea mo maa lithium-ion.O le 'au e aofia ai Rajashekar Badam, o le JAIST Senior Lecturer, Koichi Higashimin, JAIST Technical Expert, Akash Varma, sa avea muamua ma JAIST graduate student, ma Dr. Asha Lisa James, IIT Gandhinagar student.
O faʻamatalaga o latou suʻesuʻega ua faʻasalalau i le ACS Applied Nano Materials ma o le a maua i luga ole laiga ile Setema 19, 2022.
Na maua le TGNS e ala i le faʻamaʻiina o le TiB2 paʻu ma le hydrogen peroxide sosoo ai ma le centrifugation ma le lyophilization o le fofo.
O le a le mea e tulaga ese ai a tatou galuega o le faʻalauteleina o metotia ua atiaʻe e faʻapipiʻi ai nei TiB2 nanosheets.Ina ia liliu soʻo se nanomaterial i se tekinolosi faʻapitoa, scalability o le mea faʻatapulaʻa.O la matou metotia faʻapipiʻi e manaʻomia naʻo le faʻalavelave ma e le manaʻomia ni meafaigaluega faʻapitoa.E mafua lenei mea ona o le faʻamavaeina ma le toe faʻafouina o amioga a TiB2, o se faʻalavelave faʻafuaseʻi na maua e avea ai lenei galuega ma se alalaupapa faʻamaonia mai le fale suesue i le fanua.
Mulimuli ane, na faia e le au suʻesuʻe se anode lithium-ion afa sela e faʻaaoga ai le THNS e avea ma mea e faʻaogaina ai le anode ma suʻesuʻeina le faʻaogaina o meatotino o le anode faʻavae THNS.
Na iloa e le au suʻesuʻe o le anode e faʻavae i le THNS o loʻo i ai le maualuga o le tuʻuina atu o le 380 mAh / g i le taimi nei na o le 0.025 A / g.E le gata i lea, na latou matauina le faʻaogaina o le 174mAh / g i le maualuga o le taimi nei o le 1A / g, o le faʻatumauina o le gafatia o le 89.7%, ma le taimi o le totogi o le 10 minute pe a uma le 1000 taamilosaga.
E le gata i lea, e mafai e le THNS-based lithium-ion anodes ona tatalia le maualuga o galu, mai le tusa ma le 15 i le 20 A / g, e tuʻuina atu ai le ultra-fast charging i le 9-14 sekone.I le maualuga o le galu, o le taofiofia o le malosi e sili atu i le 80% pe a uma le 10,000 taamilosaga.
O faʻaiʻuga o lenei suʻesuʻega o loʻo faʻaalia ai o 2D TiB2 nanosheets o ni sui talafeagai mo le faʻavaveina o le ola umi o maa lithium-ion.Latou te faʻaalia foi le aoga o mea tetele nanoscale e pei o le TiB2 mo meatotino lelei e aofia ai le maualuga maualuga le saoasaoa gafatia, pseudocapacitive tau teuina ma le lelei o le uila.
O lenei tekonolosi faʻapipiʻi vave e mafai ona faʻavavevaveina le faʻalauiloaina o taʻavale eletise ma faʻaitiitia ai le taimi faʻatali mo le faʻatauina o masini eletise feaveaʻi.Matou te faʻamoemoe o a matou faʻaiʻuga o le a faʻaosofia atili suʻesuʻega i lenei vaega, lea e mafai ona maua ai le faʻaogagofie i tagata faʻaoga EV, faʻaitiitia le faʻaleagaina o le ea i le taulaga, ma faʻaitiitia le faʻalavelave e fesoʻotaʻi ma le olaga feaveaʻi, ma faʻateleina ai le gaosiga o lo tatou sosaiete.
O loʻo faʻamoemoeina e le 'au lenei tekinolosi mataʻina e faʻaaogaina i taavale eletise ma isi mea faʻaeletonika lata mai.
Varma, A., et al.(2022) Nanosheets hierarchical faʻavae i luga ole titanium diboride e fai ma anode mea mo maa lithium-ion.Fa'aoga nanomaterials ACS.doi.org/10.1021/acsanm.2c03054.
I lenei faatalanoaga i Pittcon 2023 i Philadelphia, PA, na matou talanoa ma Dr. Jeffrey Dick e uiga i lana galuega i le maualalo o voluma kemisi ma meafaigaluega nanoelectrochemical.
O iinei, AZoNano talanoa i Drigent Acoustics e uiga i aoga graphene e mafai ona aumaia i tekinolosi faʻalogo ma leo, ma pe faʻafefea ona faʻatupuina le manuia o le mafutaga a le kamupani ma lana fuʻa graphene.
I lenei fa'atalanoaga, KLA's Brian Crawford fa'amatala mea uma e tatau ona iloa e uiga i le nanoindentation, o lu'itau o lo'o feagai nei ma le fanua, ma pe fa'afefea ona foia.
O le AUTOsample-100 autosampler fou e fetaui ma benchtop 100 MHz NMR spectrometers.
O le Vistec SB3050-2 o se faʻataʻitaʻiga e-beam lithography system faʻatasi ai ma tekinolosi faʻapipiʻi faʻafefe mo le tele o faʻaoga i suʻesuʻega ma atinaʻe, faʻataʻitaʻiga ma le gaosiga laʻititi.