Vaongorori vakafungidzira network itsva yekabhoni, yakafanana negraphene, asi ine chimiro chakaoma kunzwisisa, izvo zvinogona kutungamira kumabhatiri emotokari emagetsi ari nani. Graphene ingangove ndiyo mhando inozivikanwa zvikuru yekabhoni. Yashandiswa semutemo mutsva wetekinoroji yebhatiri re lithium-ion, asi nzira itsva dzekugadzira dzinogona kupedzisira dzagadzira mabhatiri anoshandisa simba rakawanda.
Graphene inogona kuonekwa se network yemaatomu ekabhoni, uko atomu yega yega ekabhoni yakabatana nemaatomu matatu ekabhoni ari pedyo kuti igadzire ma hexagon madiki. Zvisinei, vaongorori vanofungidzira kuti pamusoro pechimiro ichi cheuchi, zvimwe zvimiro zvinogona kugadzirwawo.
Ichi ndicho chinhu chitsva chakagadzirwa nechikwata cheYunivhesiti yeMarburg muGermany neYunivhesiti yeAalto muFinland. Vakabatanidza maatomu ekabhoni kuenda kune dzimwe nzira. Iyo inonzi biphenyl network inoumbwa nemahexagon, masikweya nemaoctag, inova grid yakaoma kupfuura graphene. Vaongorori vanoti, nekudaro, ine hunhu hwemagetsi hwakasiyana zvakanyanya, uye mune dzimwe nzira, hunodiwa.
Semuenzaniso, kunyange hazvo graphene ichikosheswa nekuda kwekugona kwayo se semiconductor, network itsva yekabhoni inoita sesimbi. Kutaura zvazviri, kana maatomu makumi maviri nerimwe chete akafara, mitsetse ye network ye biphenyl inogona kushandiswa seshinda dzinofambisa magetsi pamidziyo yemagetsi. Vakaratidza kuti pachiyero ichi, graphene ichiri kuita se semiconductor.
Munyori mukuru akati: "Rudzi urwu rutsva rwekabhoni network runogonawo kushandiswa sechinhu chakanaka cheanode chemabhatiri e lithium-ion. Kana tichienzanisa nezvinhu zviripo zve graphene, ine simba guru rekuchengetera lithium."
Anode yebhatiri re lithium-ion inowanzo gadzirwa ne graphite spread pa copper foil. Ine magetsi akawanda, izvo zvisingangodi chete pakuisa lithium ions pakati pezvikamu zvayo, asiwo nekuti inogona kuramba ichiita izvi kwezviuru zvema cycles. Izvi zvinoita kuti ive bhatiri rinoshanda zvakanaka, asiwo bhatiri rinogona kugara kwenguva yakareba risina kuora.
Zvisinei, dzimwe nzira dzinoshanda uye diki dzinoshandiswa kubva pane iyi network itsva yekabhoni dzinogona kuita kuti kuchengetedza simba remabhatiri kuve kwakanyanya. Izvi zvinogona kuita kuti mota dzemagetsi nezvimwe zvishandiso zvinoshandisa mabhatiri e-lithium-ion zvive zvidiki uye zvakareruka.
Zvisinei, kufanana negraphene, kutsvaga magadzirirwo emhando iyi itsva pamwero mukuru ndiro dambudziko rinotevera. Nzira iripo yekubatanidza inoenderana nepamusoro pegoridhe rakatsetseka apo mamorekuru ane kabhoni anotanga kuumba cheni dzine hexagonal dzakabatana. Maitiro anotevera anobatanidza cheni idzi kuti dzigadzire maumbirwo akaenzana neakaenzana, zvichiita kuti mhedzisiro yekupedzisira ive yakasiyana negraphene.
Vaongorori vakatsanangura kuti: "Pfungwa itsva ndeyekushandisa mamorekuru akagadziriswa kugadzira biphenyl panzvimbo pegraphene. Chinangwa ikozvino ndechekugadzira mapepa akakura echinhu kuitira kuti hunhu hwayo hunzwisiswe zviri nani."
Nguva yekutumira: Ndira-06-2022
