Lilemong tsa morao tjena, libeteri tsa lithium-ion li hlahile e le theknoloji ea bohlokoa phetohong ea mehloli ea matla a nchafatsoang le likoloi tsa motlakase (li-EV). Tlhoko e ntseng e eketseha ea libeteri tse sebetsang hantle le tse theko e tlaase e hlahisitse nts'etsopele e kholo tšimong. Selemong sena, litsebi li bolela esale pele lintlafatso tse 'maloa tse ka fetolang bokhoni ba libeteri tsa lithium-ion.
Tsoelo-pele e 'ngoe e hlokomelehang eo u lokelang ho e ela hloko ke nts'etsopele ea libeteri tsa boemo bo tiileng. Ho fapana le libeteri tsa setso tsa lithium-ion tse sebelisang li-electrolyte tse metsi, libeteri tsa boemo bo tiileng li sebelisa thepa e tiileng kapa li-ceramics e le li-electrolyte. Tlhahiso ena ha e eketse feela bongata ba matla, e ka eketsang mefuta ea li-EV, empa hape e fokotsa nako ea ho tjhaja le ho ntlafatsa polokeho ka ho fokotsa kotsi ea mollo. Likhamphani tse tummeng joalo ka Quantumscape li shebane le libeteri tsa lithium-metal tse tiileng, tse ikemiselitseng ho li kopanya le likoloi ho tloha ka 2025[1].
Leha libeteri tsa solid-state li na le tšepiso e kholo, bafuputsi ba boetse ba ntse ba hlahloba lik'hemistri tse ling ho rarolla matšoenyeho mabapi le ho fumaneha ha lisebelisoa tsa bohlokoa tsa betri tse kang cobalt le lithium. Patlo ea likhetho tse theko e tlase le tse tsitsitseng e ntse e tsoela pele ho khanna boqapi. Ho feta moo, litsi tsa thuto le lik'hamphani lefatšeng ka bophara li sebetsa ka thata ho ntlafatsa ts'ebetso ea betri, ho eketsa bokhoni, ho potlakisa lebelo la ho tjhaja, le ho fokotsa litšenyehelo tsa tlhahiso[1].
Maiteko a ho ntlafatsa libeteri tsa lithium-ion a fetela ka nqane ho likoloi tsa motlakase. Libeteri tsena li fumana lits'ebetso polokelong ea motlakase ea boemo ba gridi, e leng se lumellang ho kopanngoa hamolemo ha mehloli ea matla a nchafatsoang a sa khaotseng joalo ka matla a letsatsi le a moea. Ka ho sebelisa libeteri tsa lithium-ion bakeng sa polokelo ea gridi, botsitso le ts'epo ea litsamaiso tsa matla a nchafatsoang li ntlafala haholo[1].
Phuputsong e ncha ea morao tjena, bo-rasaense ba Lawrence Berkeley National Laboratory ba hlahisitse sekoahelo sa polymer se tsamaisang motlakase se tsejoang e le HOS-PFM. Seaparo sena se nolofalletsa libeteri tsa lithium-ion tse tšoarellang nako e telele le tse matla haholoanyane bakeng sa likoloi tsa motlakase. HOS-PFM e tsamaisa lielektrone le li-ion ka nako e le 'ngoe, e ntlafatsa botsitso ba betri, sekhahla sa ho tjhaja/ho ntsha motlakase, le nako ea bophelo ka kakaretso. E boetse e sebetsa e le sekhomaretsi, e ka eketsang nako ea bophelo ba libeteri tsa lithium-ion ho tloha lilemong tse 10 ho isa ho tse 15. Ho feta moo, seaparo sena se bontšitse ts'ebetso e ikhethang ha se sebelisoa ho li-electrode tsa silicon le aluminium, se fokotsa ho senyeha ha tsona le ho boloka matla a betri a phahameng ka makhetlo a mangata. Liphuputso tsena li na le tšepiso ea ho eketsa matla a libeteri tsa lithium-ion haholo, ho li etsa hore li be theko e tlase le tse fumanehang habonolo bakeng sa likoloi tsa motlakase[3].
Ha lefats'e le ntse le loanela ho fokotsa mesi e ntšang khase e futhumatsang lefatše le ho fetela bokamosong bo tsitsitseng, tsoelo-pele theknolojing ea betri ea lithium-ion e bapala karolo ea bohlokoa. Maiteko a tsoelang pele a lipatlisiso le nts'etsopele a ntse a khanna indasteri pele, a re atametsa haufi le litharollo tsa betri tse sebetsang hantle, tse theko e tlase le tse mosa tikolohong. Ka tsoelo-pele ea libeteri tsa boemo bo tiileng, lik'hemik'hale tse ling, le liphahlo tse kang HOS-PFM, monyetla oa ho amoheloa ha likoloi tsa motlakase ka bongata le polokelo ea matla ea grid o ntse o eketseha.
Nako ea poso: Phupu-25-2023
