Nava: Elektroodhadayada nanotube waxay leeyihiin 3 jeer awoodda waxayna bixiyaan 10 jeer awoodda unugyada lithium-ion.
Toddobaad cusub, batari cusub. Sameeyaha awooda sare ee Faransiiska Nawa ayaa sheegay in ay bilowday soo saarista nooca cusub ee nanotube electrodes ee baytariyada lithium-ion. Waxaa loo maleynayaa in ay sabab u tahay habaynta isbarbardhigga ee nanotubes, ay ku kaydin karaan saddex jeer lacag ka badan kan kaarboonka.
Noocyo cusub oo 3D ah oo laga keenay Nawa: ka xoog badan, ka wanaagsan, dhakhso badan, ka sii xoog badan
Lithium-ion anodes-ka casriga ah waxaa lagu sameeyaa ugu horrayn iyadoo la isticmaalayo graphite ama kaarboon firfircoon (ama xitaa kaarboonka firfircoon ee graphite) sababtoo ah qaab-dhismeedkooda daloolku wuxuu u oggolaanayaa kaydinta xaddi badan oo ions ah. Mararka qaarkood kaarboon waxaa lagu qasaa silikoon waxaana ku wareegsan nanocoating si loo xaddido bararka walxaha.
Waxaad mar hore maqli kartaa qalabka ku habboon isticmaalka silikoon saafi ah, ayuu yidhi Tesla ama Samsung SDI.
> Qaybaha Tesla oo dhamaystiran: qaabka 4680, silicon anode, "dhexroorka ugu fiican", wax soo saarka taxanaha 2022.
Nava wuxuu sheegay in qaab dhismeedka kaarboonku uu aad ugu adag yahay dhaqdhaqaaqa ions. Halkii laga isticmaali lahaa kaarboon, shirkaddu waxay doonaysaa inay isticmaasho kaarboon nanotubes, kuwaas oo la sheegay in horeba loogu isticmaalay soosaarayaasha super capacitors. Nanotubes ayaa loo habeeyey qaab isbar-bar socda “notches” toosan oo ion ay si raaxo leh u degi karaan. macno ahaan:
Waxaa loo qaadan karaa in dhammaan nanotubes ee anode ay ku yaalliin si ay ions si xor ah u dhexgalaan iyaga ilaa meel ku habboon laga doorto. "Iyadoo aan la wareegin dhismayaasha daloolada ah ee anode qadiimiga ah, ions-yadu waxay safri doonaan oo kaliya dhowr nanometer halkii mikromitir, sida kiiska electrodes-ka caadiga ah," Nava ayaa yidhi.
Bayaanka ugu dambeeya ayaa muujinaya in nanotubes ay sidoo kale u dhaqmi karaan sida cathodes - shaqadooda waxay ku xirnaan doontaa walxaha ku jiri doona dusha sare. Nef ma xukumayso isticmaalka silikoon sababtoo ah kaarboon nanotubes-ka ayaa ku dhejin doona sida qafis, markaa qaab-dhismeedku ma heli doono fursad uu ku bararo. Dhibaatada burburi waa la xalliyay!
> Isticmaal unugyo lithium-ion ah oo diyaarsan oo leh anode silicon ah. Ku dallacaadda si ka dhaqso badan shidaal ku shubashada hydrogen
Oo sidee bay u ekaan lahayd xuduudaha unugyada isticmaalaya nanotubes? Hagaag, waxay ogolaan lahaayeen:
- isticmaalka 10 jeer ka badan dallacaadda iyo dallacaaddamaxaa hadda
- hal-abuurnimo baytariyada cufnaanta tamarta 2-3 jeer ka sarreeya laga soo bilaabo asaagii,
- kordhinta nolosha batteriga shan ama xitaa toban jeersababtoo ah nanotubes ma oggolaan doono hababka burburiya unugyada lithium-ion (ilo).
Habka isku toosinta nanotubes ee isku xigta waa in uu ahaado mid fudud, oo lagu eedeeyay isla habka loo isticmaalo in lagu dahaadho muraayadaha iyo unugyada sawir-qaadista ee leh daahan ka-horjeeda. Nawa waxay ku faantaa inay ku kori karto nanotubes barbar socda xawaare dhan 100 micrometer (0,1 mm) daqiiqadii - waxayna u isticmaashaa tignoolajiyadan awoodeeda sare.
Haddii sheegashada Nava ay run tahay oo korantada cusub ay iibiso, tani waxay nooga dhigan tahay:
- baabuurta korantada ayaa ka fudud baabuurta gubashada gudaha laakiin leh baaxad weyn,
- Awoodda lagu dallaci karo koronto-yaqaannada awoodda 500 ... 1 ... 000 kW, taas oo ka gaaban shidaalka.
- kororka masaafada korantada iyada oo aan loo baahnayn in la beddelo batteriga laga bilaabo hadda 300-600 kun ilaa 1,5-3-6 milyan kiiloomitir,
- iyadoo la ilaalinayo cabbirka hadda ee batteriga: dib loo dallaci karo, dheh, hal mar labadii toddobaadba mar.
Lammaanaha ugu horreeya ee Navah waa soo saaraha batteriga Faransiiska ee Saft, kaas oo iskaashi la leh PSA Group iyo Renault oo qayb ka ah Isbahaysiga baytariyada Yurub.
Sawirka hordhaca ah: nanotubes ee Nawa electrode (c) Nawa
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