Abaphandi baxele kwangaphambili inethiwekhi entsha ye-carbon, kodwa efana neGraphene, kodwa ngoomaso oluntsonkothileyo, olunokukhokelela kwiibhetri ezingcono zombane. I-Graphene iphikisana ngohlobo oluqhelekileyo lwekhabhoni. Ifakwe njengokuthengiswa komdlalo omtsha we-lithium-ion, kodwa iindlela ezintsha zemveliso zingavelisa iibhetri ezinzulu zamandla.
I-Graphene inokubonwa njengenethiwekhi yeatom yekhabhoni, apho i-atom nganye ye-carbon iqhagamshelwe kwiiathom zekharbon ezikufuphi ne-kharbon esked ukuvelisa i-tiny hexagons. Nangona kunjalo, abaphandi bacinga ukuba ukongeza kolu lwakhiwo lwenyosi, ezinye izinto zinokuveliswa.
Esi sisixhobo esitsha esiphuhliswe liqela kwiYunivesithi yaseMarburg eJamani nase-Aalto University. Bane-atom ye-carbon kwii-atom ze-carbon kwiindlela ezintsha. Inethiwekhi ebizwa ngokuba yi-biphenyl yenziwa nge-hexagons, izikwere kunye ne-octagons, eyigridi entsonkothileyo kunerakra. Abaphandi bathi, ke, oko, ihlukile kakhulu, kwaye kwezinye izinto ezinqwenelekayo ze-elektroniki.
Umzekelo, nangona isiqani sixabisekile ngenxa yobuchule bayo njenge-semiconductor, inethiwekhi entsha ye-carbon iziphatha ngakumbi njengesinyithi. Ngapha koko, xa kuphela ii-Atom ezingama-21 kuphela, imingxunya yenethiwekhi ye-Biphenyl inokusetyenziswa njengemisonto esebenzayo kwizixhobo ze-elektroniki. Bakhomba ukuba okwangoku, igraphene isaziphatha njenge-semicondcuctor.
Owona mbhali uphambili uthe:
I-Anode yebhetri ye-lithium-ion idla ngokudityaniswa kwegrafu esasazeka kwi-foil ye-foil. Inendlela yokuqhubela phambili kombane, engabalulekanga ukuba ibethe i-lithium ye-lithium phakathi kwezinto, kodwa kwakhona kuba inokuqhubeka nokwenza oko kunokuba amawaka emijikelezo. Oku kwenza ibhetri esebenzayo, kodwa ibhetri enokufumana ixesha elide ngaphandle kokuthambisa.
Nangona kunjalo, ezinye iindlela ezifanelekileyo nezincinci ezisekwe kule thungelwano i-carbon entsha inokwenza ukugcinwa kwamandla ebhetri ngakumbi. Oku kunokwenza izithuthi zombane kunye nezinye izixhobo ezisebenzisa i-lithium-ion-ion incinci kwaye ilula.
Nangona kunjalo, njengoGraine, cinga indlela yokwenza le nguqulo intsha kwinqanaba eliphezulu ngumceli mngeni olandelayo. Indlela yangoku yeNdibano ixhomekeke kumphezulu wegolide onesidima kwi-carbon-enemolekyuli eneemolekyuli ze-helisagonal. Ukuphendula okulandelayo kuqhagamshele obu bathanga ukwenza imilo ye-Square kunye neemilo ze-octagonal, zenza iziphumo zokugqibela zahlukile kwi-gophene.
Abaphandi bacacisa: "Icebo elitsha kukusebenzisa i-foleculars ehlengahlengisiweyo ukuvelisa i-biphenel endaweni yeGraine. Injongo ngoku kukuvelisa amaphepha amakhulu omxholo ukuze iipropathi zingaqondwa ngcono."
IXESHA LOKUQALA: UJan-06-2022
