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Jaamacadda California waxay samaysaa diaphragm baytari cusub si ay uga fogaato qaraxyada kulaylka badan ee baytari iyadoo isticmaalaysa shabaqyada kaarboon nanotube

ଲେଖକ: ଆଇଫ୍ଲୋପାୱାର - Soláthraí Stáisiún Cumhachta Inaistrithe

Injineerka nano-injineerka ee Jaamacadda California San Diego ayaa soo saaray sifo badbaado leh oo ka hortagaysa baytariyada birta lithium in si degdeg ah loo diiriyo oo loo shido marka ay gaaban yihiin. Liu Ping, oo ah borofisar ku takhasusay injineerinka nano-injineernimada ee California, San Diego, ayaa daabacay warqad ku jirta majaladda "Alaabada Advanced", oo lagu daabacay majaladda "Advanced Materials", waxay si faahfaahsan u soo bandhigeen shaqadooda. Baytariyada birta ah ee Lithium waxay leeyihiin karti weyn oo waxqabad, laakiin way fududahay in lagu guuldareysto qaabka hadda.

Tani waxay sabab u tahay koritaanka qaab-dhismeedka irbada ee loo yaqaan &39;dendritic crystal&39;, dendrimature wuxuu ku sameysmaa anode ka dib marka bateriga la dallaco, kala-soocida waa la daloolin karaa, kala-soocida ayaa la sameeyaa inta u dhaxaysa anode iyo cathode. Caqabad, tamarta gaabinaysa iyo socodka kulaylka. Marka caqabadan la burburiyo oo elektarooniga ay si xor ah u qulquli karaan, waxay soo saaraan kalooriyo badan, arrimuhuna waxay noqonayaan kuwa koontaroolaya, taasoo keenaysa kulaylka baytarigu, fashilanto, dab, xitaa qarax.

Saynis yahanadu waxay raadinayaan inay ku xalliyaan dhibaatooyinkan baytariyada birta lithium siyaabo kala duwan, halkaasoo ultrasonic ama lakabyada ilaalinta gaarka ah ay isticmaalaan ultrasound ama lakabyo ilaalin gaar ah si ay u noqdaan fursado yar. Kooxdu waxay nadiifisay qaybta batteriga ee loo yaqaan diaphragm. Diaphragm-ku waa xayndaab u dhexeeya electrode-ka togan iyo electrode-ka taban, si marka uu baytarigu gaaban yahay, tamarta ku urursan baytarigu (yacni, kulaylka) ay u socoto tartiib tartiib.

Qoraaga ugu horreeya ee qoraalka ayaa yaabay: "Ma isku dayno inaan ka hortagno cilladda batteriga. Waxaan ka dhignaa batteriga mid aad u ammaan badan, marka marka uu dhaco, batarigu ma qabsan doono dab ama qarax. Baytariyada birta lithium Ka dib dallacaadda soo noqnoqda, anode-ku wuxuu ka soo muuqan doonaa anode-ka.

Waqti ka dib, kobaca dendritic waa mid dheer oo ku filan, oo galaya diaphragm, kor u qaadista buundada u dhaxaysa anode iyo cathode, taasoo keenta wareegyada gaaban ee gudaha. Marka ay tani dhacdo, socodka elektarooniga ah ee u dhexeeya labada electrodes ayaa lumaya xakamaynta, taas oo keenaysa in baytarigu kululaado oo uu joojiyo shaqada. Kooxda cilmi-baarista ee Jaamacadda California San Diego asal ahaan waa la dhimay.

Mid ka mid ah dhinac wuxuu daboolayaa lakab khafiif ah, oo qayb ahaan korontada ku shaqeeya shabakad nanotube, kaas oo ka hortagi kara nooc kasta oo dendrites ah. Marka dendritic ku dhejiyo diaphragm oo uu ku dhufto shabagga kaarboon nanotube, elegtarooniga ah wuxuu leeyahay kanaal, kaas oo si tartiib ah u soo bixi kara, oo aan si toos ah u gelin cathode. Gonzalez waxa uu isbarbar dhigi doona kala soocida baytariga cusub iyo dariiqa biyo-mareenka ee biyo-xidheenka.

Wuxuu yiri: "Marka biyo-xireenka la bilaabo in la xidho, waxaad furi doontaa daadatay, u daa xoogaa biyo ah inay u soo baxaan si la xakameyn karo. Sidan oo kale, marka biyo-xireenku dhab ahaantii yahay meel go&39;ay, ma jiraan biyo badan oo keeni kara fatahaad. Tani waa fikradda kala-soocidayada, taas oo si weyn u yaraynaysa xawaaraha dheecaanka ee kharashka, ka hortagga elektaroonigga "daadka" ee cathode.

Marka dendritic-ku uu dhexgalo lakabka korantada ee kala-soocida, batarigu wuxuu bilaabi doonaa inuu soo baxo, marka batarigu gaaban yahay, ma jiraan tamar ku filan oo khatar ah. "Shaqada kale ee cilmi-baarista batteriga waxay xoogga saaraysaa xannibaadda gelitaanka dendrites-ka oo wata walxo xooggan oo ku filan. Laakiin Gonzalez wuxuu sheegay in dhibaatada habkan ay tahay in la kordhiyo kaliya natiijooyin lama huraan ah.

Kala-soocidaani waxay weli u baahan yihiin si fiican, iyagoo u oggolaanaya ions inay dhaafaan si uu batteriga u shaqeeyo. Sidaa darteed, marka geedka ugu dambeyntii la dhaafo, wareegga gaaban ayaa ka sii dari doona. Tijaabada, baytariga birta lithium ee lagu rakibay kala-soocida cusub waxa uu muujinayaa calaamado si tartiib tartiib ah u fashilmay 20 ilaa 30 wareeg.

Isla mar ahaantaana, batteriga iyo kala soocida caadiga ah (iyo in yar oo dhumucdeedu yar tahay) ayaa si lama filaan ah u cilado hal wareeg. "Xaaladda dhabta ah, ma lahaan doontid wax digniin ah oo hore oo ku saabsan batteriga ayaa ku dhow inuu guuldareysto. Ilbiriqsigii hore waxa uu noqon karaa ok, waxa uu qabsan doonaa dab ama wareeg gaaban oo dhamaystiran ilbiriqsi soo socda.

Tani waa wax aan la saadaalin karin," ayuu yiri Gonzalez. “Laakin kala saaraheenna, waa lagaa digayaa, waa lagaa digayaa, waa lagu sii xumaanayaa, waa lagu sii dari doonaa, waa lagu sii kordhinayaa. "In kasta oo diiradda daraasaddan ay tahay baytariyada birta ee lithium, cilmi-baarayaashu waxay sheegeen in kala-soocida sidoo kale loo isticmaali karo ion lithium iyo fal-celinta kiimikada kale ee baytariga.

Kooxda cilmi-baarista waxa ay ka go&39;an tahay in ay wanaajiyaan isticmaalka ganacsi ee kala-soocida. Jaamacadda California ee San Diego ayaa codsatay shati ku meel gaar ah daraasadda.

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