Libetri tsa bobeli, joalo ka libeteri tsa lithium ion, li hloka ho nchafatsoa hang ha matla a bolokiloeng a felile.Boitekong ba ho fokotsa ho itšetleha ha rona ka libeso tsa khale, bo-rasaense ba ntse ba batla mekhoa e tsitsitseng ea ho tjhaja libeteri tsa bobeli.Haufinyane tjena, Amar Kumar (seithuti se fumaneng mangolo lab ea TN Narayanan e TIFR Hyderabad) le basebetsi-'moho le eena ba bokelletse betri e kopaneng ea lithium ion e nang le lisebelisoa tse nkang lifoto tse ka nchafatsoang ka matla a letsatsi.
Boiteko ba pele ba ho tsamaisa matla a letsatsi ho nchafatsa libeteri bo ne bo sebelisa tšebeliso ea lisele tsa photovoltaic le libeteri joalo ka mekhatlo e arohaneng.Matla a letsatsi a fetoloa ke lisele tsa photovoltaic ho matla a motlakase ao ka lebaka leo a bolokiloeng e le matla a lik'hemik'hale ka har'a libeteri.Joale matla a bolokiloeng ka libetering tsena a sebelisoa ho matlafatsa lisebelisoa tsa elektronike.Phepelo ena ea matla ho tloha karolong e 'ngoe ho ea ho e' ngoe, mohlala, ho tloha seleng ea photovoltaic ho ea ho betri, e lebisa tahlehelong e itseng ea matla.E le ho thibela tahlehelo ea matla, ho ile ha e-ba le phetoho ea ho hlahloba tšebeliso ea likaroloana tsa photosensitive ka har'a betri ka boeona.Ho bile le khatelo-pele e kholo ea ho kopanya likaroloana tse utloang bohloko ka har'a betri e entseng hore ho thehoe libeteri tsa letsatsi tse kopaneng.
Le hoja li ntlafalitsoe ka moralo, libeteri tse teng tsa letsatsi li ntse li na le mathata.Tse ling tsa mathata ana a amanang le mefuta e fapaneng ea libeteri tsa letsatsi li kenyelletsa: ho fokotseha ha bokhoni ba ho sebelisa matla a letsatsi a lekaneng, tšebeliso ea organic electrolyte e ka senyang karolo ea photosensitive organic ka har'a betri, le ho etsoa ha lihlahisoa tse ka thōko tse sitisang ho sebetsa ka mokhoa o tsitsitseng ha betri. nako e telele.
Thutong ena, Amar Kumar o nkile qeto ea ho hlahloba lisebelisoa tse ncha tsa ho nka lifoto tse ka kenyelletsang lithium le ho haha betri ea letsatsi e tla ba bopaki ba ho lutla le ho sebetsa hantle maemong a tikoloho.Libetri tsa letsatsi tse nang le li-electrode tse peli hangata li kenyelletsa dae e nkang lifoto ho e 'ngoe ea li-electrode tse kopantsoeng le karolo ea botsitso e thusang ho tsamaisa phallo ea lielektrone ka har'a betri.Electrode eo e leng motsoako oa 'mele oa lisebelisoa tse peli e na le mefokolo mabapi le ts'ebeliso e nepahetseng ea sebaka sa holim'a electrode.Ho qoba sena, bafuputsi ba sehlopha sa TN Narayanan ba thehile heterostructure ea photosensitive MoS2 (molybdenum disulphide) le MoOx (molybdenum oxide) ho sebetsa joalo ka electrode e le 'ngoe.Kaha ke heterostructure eo ho eona MoS2 le MoOx li kopantsoeng hammoho ke mokhoa oa ho beha mouoane oa lik'hemik'hale, eleketrode ena e lumella sebaka se eketsehileng ho monya matla a letsatsi.Ha mahlaseli a khanyang a otla eleketrode, MoS2 e nkang lifoto e hlahisa lielektrone 'me ka nako e le 'ngoe e etsa likheo tse bitsoang likoti.MoOx e boloka lielektrone le masoba li arohane, 'me e fetisetsa lielektrone ho potoloho ea betri.
Betri ena ea letsatsi, e neng e kopane ka ho feletseng ho tloha qalong, e ile ea fumanoa e sebetsa hantle ha e pepesehetse leseli le etsisang letsatsi.Sebopeho sa eleketrode ea heterostructure e sebelisitsoeng ka har'a betri ena e ithutiloe haholo ka microscope ea phetisetso ea elektrone.Bangoli ba thuto ha joale ba ntse ba sebeletsa ho sibolla mochine oo MoS2 le MoOx li sebetsang hammoho le lithium anode e hlahisang tlhahiso ea hona joale.Le hoja betri ena ea letsatsi e finyella tšebelisano e phahameng ea lisebelisoa tsa lifoto le khanya, e ntse e tla finyella tlhahiso ea maemo a nepahetseng a hona joale ho tsosolosa betri ea lithium ion ka botlalo.Re nahanne ka sepheo sena, lab ea TN Narayanan e ntse e hlahloba hore na li-electrode tsa heterostructure li ka bula tsela ea ho rarolla mathata a libeteri tsa letsatsi la kajeno.
Nako ea poso: May-11-2022