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Iqela lophando lwenzululwazi yeYunivesithi yaseLes isekelwe kwiteyiphu, idityaniswe nobuchwepheshe belaser obuphambili, kwaye iphuhlise uhlobo olutsha lwezinto ze-electrode. Esi sixhobo sinokunqoba iingxaki zexesha elide zebhetri ye-lithium-ion yangoku kwaye ulindele ukwandisa ukusebenza kwebhetri. Ibhetri yentsimbi yelithium ibhekisa kwibhetri esetyenziswa ngokuqhelekileyo njengegraphite esetyenziswa njenge-anode (i-electrode ezimbini) kwibhetri yentsimbi ecocekileyo ye-lithium.
Ekubeni le nto inamandla aphezulu kakhulu, i-lithium yensimbi inokwenza isantya sokutshaja kwebhetri sikhawuleze kakhulu, kwaye umthamo unokufikelela kumaxesha angama-10. Nangona kunjalo, kusekho ukusilela kwiibhetri ze-lithium-ion, eyona ngxaki "i-dendrites". Ngexesha lokutshaja, ezi dendrites zenziwe kumphezulu we-anode kwaye zinokubangela iisekethe ezimfutshane, ukungaphumeleli okanye umlilo, ngoko ke inani elikhulu lezifundo zebhetri ziqokelelwa ekuzibulaleni.
Iqela lophando lwezenzululwazi kwiYunivesithi yaseLes inokuphazamiseka okutsha kolu didi, okokuqala yiteyiphu. Iqela lidlulisela i-tape kumqokeleli wangoku wobhedu owenza i-lithium anode, kwaye ixazululwe nge-laser ukuyitshisa kwiqondo lokushisa elibi kakhulu le-2300 Kelvin (3680 ¡ã F okanye i-2026 ¡ã C), ngaloo ndlela inika enye into eluncedo kakhulu. Inqaku elitsha.
Le nkqubo iguqula i-tape ibe yingubo enqabileyo, enqwenelekayo ukuqulunqa kwi-silicon, i-oksijeni, kunye nenani elincinci le-graphene emangalisayo. Uvavanyo lwangaphambili lwefilimu, lunokusetyenziswa njengoluhlu olukhuselayo lwendibano yangoku yomqokeleli, enokuthi ithathe kwaye ikhulule i-lithium yensimbi, kwaye ayiyi kubangela i-dendrites eyingozi. Kwi-laser-induced silicon oxide yokukhusela i-coating, i-Less University iqela linokufumana indlela yokusebenzisa le miba emihle, kungekhona esanda kwandisa umthwalo we-lithium.
Isiteyitimenti sayo sovavanyo, ibhetri exhotyiswe ngokutyabeka kwayo entsha ibonisa kathathu ubomi bezinye "zero excess" ibhetri ye-lithium-ion yesinyithi, kwaye igcina umthamo we-70% kwimijikelo yentlawulo engama-60. Iqela lihlalutya ukuba le teknoloji ikhawuleza kwaye ikhuselekile, ayibandakanyi i-solvent, kwaye inokuthi iqhutywe kwiqondo lokushisa. Ke ngoko, ithunyelwa kumathemba kwaye ikholelwa ukuba ine-potentia enkulu.
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