Iibhetri zeSekondari, ezifana neebhetri ze-lithium ion, kufuneka zihlaziywe xa amandla agciniweyo esetyenzisiwe.Kwilinge lokunciphisa ukuxhomekeka kwethu kumafutha efosili, oosonzululwazi bebejonga iindlela ezizinzileyo zokutshaja iibhetri zesibini.Kutshanje, u-Amar Kumar (umfundi ophumelele isidanga kwilebhu ka-TN Narayanan e-TIFR Hyderabad) kunye noogxa bakhe baye bahlanganisa ibhetri ye-lithium ion ene-photosensitive enokuthi itshajwe ngokuthe ngqo ngamandla elanga.
Iinzame zokuqala zokuhambisa amandla elanga ukuhlaziya iibhetri zisebenzise ukusetyenziswa kweeseli ze-photovoltaic kunye neebhetri njengamaqumrhu ahlukeneyo.Amandla elanga aguqulwa ngeeseli ze-photovoltaic zibe amandla ombane athi agcinwe njengamandla ekhemikhali kwiibhetri.Amandla agcinwe kwezi bhetri asetyenziswa ukunika amandla izixhobo zombane.Le relay yamandla ukusuka kwelinye icandelo ukuya kwelinye, umzekelo, ukusuka kwiseli ye-photovoltaic ukuya kwibhetri, ikhokelela ekulahlekelweni kwamandla athile.Ukuthintela ilahleko yamandla, kuye kwakho inguqu ekujongeni ukusetyenziswa kwezixhobo zefotosensitive ngaphakathi kwebhetri ngokwayo.Kubekho inkqubela-phambili enkulu ekudibaniseni izixhobo zefotosensitive ngaphakathi kwebhetri okukhokelela ekwenziweni kweebhetri zelanga ezihlangeneyo.
Nangona ziphuculwe kuyilo, iibhetri ezikhoyo zelanga ziseneengxaki ezithile.Ezimbalwa zezi zinto zingeloncedo ezinxulumene neentlobo ezahlukeneyo zeebhetri zelanga ziquka: ukuhla kwamandla okusebenzisa amandla elanga awaneleyo, ukusetyenziswa kwe-electrolyte ephilayo enokonakalisa i-photosensitive organic component ngaphakathi kwebhetri, kunye nokwenziwa kweemveliso ezisecaleni ezithibaza ukusebenza okuzinzileyo kwebhetri. ixesha elide.
Kolu phononongo, u-Amar Kumar uthathe isigqibo sokuphonononga izixhobo ezitsha zefotosensitive ezinokubandakanya i-lithium kunye nokwakha ibhetri yelanga enobungqina bokuvuza kwaye isebenze ngokufanelekileyo kwiimeko ezingqongileyo.Iibhetri zelanga ezinee-electrode ezimbini zihlala zibandakanya idayi yefotosensitive kwenye yee-electrode ezixutywe ngokwasemzimbeni kunye necandelo lokuzinzisa elinceda ukuqhuba ukuhamba kwee-electron ngebhetri.I-electrode engumxube womzimba wezinto ezibini inezithintelo ekusebenziseni ngokufanelekileyo indawo yomphezulu we-electrode.Ukunqanda oku, abaphandi abavela kwiqela le-TN Narayanan benza i-heterostructure ye-photosensitive MoS2 (i-molybdenum disulphide) kunye ne-MoOx (i-molybdenum oxide) ukuze isebenze njenge-electrode enye.Ekubeni i-heterostructure apho i-MoS2 kunye ne-MoOx ziye zadityaniswa kunye ngobuchule bokubeka umphunga wekhemikhali, le electrode ivumela indawo engaphezulu yomphezulu ukufunxa amandla elanga.Xa imitha yokukhanya ibetha i-electrode, i-photosensitive MoS2 ivelisa ii-electron kwaye ngaxeshanye yenza izithuba ezibizwa ngokuba yimingxuma.I-MoOx igcina ii-electron kunye nemingxuma ngaphandle, kwaye idlulisela ii-electron kwisekethe yebhetri.
Le bhetri yelanga, ehlanganiswe ngokupheleleyo ukusuka ekuqaleni, yafunyanwa isebenza kakuhle xa iboniswe kwisibane selanga esifanisiweyo.Ukwakhiwa kwe-electrode ye-heterostructure esetyenziswe kule bhetri ifundwe ngokubanzi kunye ne-electron microscope yokudluliselwa.Ababhali bophononongo ngoku basebenzela ukufumanisa indlela i-MoS2 kunye ne-MoOx esebenza ngayo kunye ne-lithium anode ekhokelela kwisizukulwana sangoku.Ngelixa le bhetri yelanga ifikelela kunxibelelwano oluphezulu lwezixhobo ze-photosensitive ngokukhanya, iseza kufezekisa isizukulwana samanqanaba afanelekileyo angoku ukutshaja ngokupheleleyo ibhetri ye-lithium ion.Unale njongo engqondweni, ilebhu ka-TN Narayanan iphonononga ukuba ii-electrode ze-heterostructure zinokuvula njani indlela yokujongana nemingeni yeebhetri zangoku zelanga.
Ixesha lokuposa: May-11-2022