Tesla o etsa kopo ea patent bakeng sa lisele tse ncha tsa NMC. Lik'hilomithara tse limilione li tsamaisoa le ho senyeha ho fokolang
Tesla Canada e kentse kopo ea lisele tse ncha tse nang le li-cathodes tsa NMC (Nickel-Manganese-Cobalt). Ho bonahala eka tsena ke lintho tse tšoanang le tseo lab ea Jeff Dunn e li etselitseng moetsi, 'me e e lumella ho tsamaea lik'hilomithara tse limilione e sa tabohe haholo.
Tesla o tla tloha NCA ho ea NMC?
Hona joale Tesla o sebelisa lisele tsa lithium-ion tse nang le li-cathodes tsa NCA, ke hore nickel-cobalt-aluminium, e nang le cobalt e ka tlaase ho karolo ea 10 lekholong, bonyane ho Tesla Model 3. Ketsahalo ena ka boeona, hobane lisele tse molemo ka ho fetisisa tsa kajeno tsa NMC811 10 lekholong ea cobalt cathodes. lia sebelisoa - empa li qala ho sebetsa butle, li tlosa likarolo tsa NMC622.
> Lisele tse 2170 (21700) ho libeteri tsa Tesla 3 li betere ho feta NMC 811 ho _future_
Joalokaha Elon Musk a tšepisitse, Tesla ea morao-rao e tlameha ho tsamaea ho tloha ho 0,48 ho ea ho 0,8 lik'hilomithara tse limilione ka betri. Leha ho le joalo, haufinyane o tla rata ho khanna lik'hilomithara tse limilione tse 1,6 ka matla a betri - sena ke seo 'mele le powertrain tsa Tesla Model 3 li lokelang ho li tšehetsa.
'Me mona o thusoa ke katleho ea laboratori ea Jeff Dunn, e ileng ea sebeletsa Tesla nakoana le eo ka September 2019 e ileng ea ithorisa ka lik'hemik'hale tse ncha ka ho feletseng tsa li-electrolyte tsa lisele tsa lithium-ion tse nang le li-cathodes tsa NMC532.
Ka lebaka la ts'ebeliso ea "kristale e le 'ngoe" cathode le electrolyte e nang le li-additives tse sebelisoang hona joale tse matlafalitsoeng ka dioxazolone le nitriles ea ester ea sulfite, ho itšetlehile ka sebopeho sa electrolyte (mohloli), ho ile ha khoneha ho finyella tse latelang:
- ho fokotseha butle ha lisele ka lebaka la kholo e thibetsoeng ea sekhahla sa passivation (SEI), se tlamang li-ion tsa lithium, tse ikarabellang ka kotloloho bakeng sa bokhoni,
- matla a phahameng a lisele khahlanong le mocheso.
A) foto ea microscopic ea NMC 532 powder B) foto ea microscopic ea electrode surface ka mor'a ho hatelloa, C) e 'ngoe ea lisele tse lekiloeng 402035 ka mokotleng o haufi le chelete ea tšepe ea lidolara tse peli tsa Canada, DOWN, setšoantšo ka ho le letšehali) ho senyeha ha lisele tse lekiloeng. ha ho bapisoa le bokamorao ba lisele tsa mohlala, TLASE, setšoantšo se ka ho le letona) bophelo ba sele khahlanong le mocheso nakong ea ho tjhaja (c) Jesse E. Harlow et al. / Journal of the Electrochemical Society
Sena sohle se utloahala se rarahane, empa litlamorao lia hlolla:
- Liphesente tse 70 ka mor'a lipotoloho tse 3 tsa tefiso ka likhato tse 650 (lik'hilomithara tse ka bang limilione tse 40),
- matla a fihlang ho liperesente tse 90 kamora lik'hilomithara tse limilione tse 3haeba mocheso oa sele o ne o bolokiloe ka likhato tse 20 tsa Celsius 'me ho tjhaja ho ne ho etsoa ka 1 ° C (1x matla a betri, ke hore 40 kW e nang le 40 kWh betri, 100 kW e nang le 100 kWh betri, joalo-joalo).
Ha ho tsejoe hore na kopo e ntseng e emetse ea patent e bolela hore Tesla o tla fetisetsa NCA ho NCM. Ho fihlela joale, ho se ho boletsoe ka mokhoa o sa reroang hore lisele tsa lithium-ion tsa NCM li lokela ho hlaha ka mehlala e entsoeng Chaena.
> Asphalt (!) E tla eketsa bokhoni le ho potlakisa ho tjhaja libeteri tsa lithium-ion.
Leha ho le joalo, ho bolokehile ho bolela hore moetsi oa California o ikemiselitse ho fana ka litokelo tsa bona tsa molao. Ka ho hatisa lipampiri ka li-additives tse ncha tsa electrolyte, a ka 'na a batla ho potlakisa mosebetsi oa lefats'e ho lisele tsa lithium tsa moloko o latelang.
Mona ke ts'ebeliso e felletseng ea patent ea Tesla (jarolla PDF MONA):
Tlhokomeliso ho tsoa ho bahlophisi ba www.elektrowoz.pl: ha re ntse re ntšetsa pele sehlooho sena, re ile ra ikutloa hore ho thehoa ha koloi ea motlakase ea Poland ho tla tura HAHOLO HAHOLO. Ha rea khona ho fumana moo ho buuoang ka dioxazolones le sulfite ester nitriles Marang-rang a Poland. Sena se bolela hore mohlomong ha ho na motho Poland ea ka utloisisang kopo ena ea patent le liqeto tsa eona. Re na le li-PhD tse ngata ka ho ngola, ho bapatsa, philology le nalane, empa tsoelo-pele ea 'nete e etsahala libakeng tse ling, hona mona, ka pel'a mahlo a rona.
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