Inkqubela phambili kwiTekhnoloji yokuRisayikilisha iibhetri zeLithium-Ion

Uphononongo lwakutshanje olupapashwe ngoJulayi 29 kwijenaliIzixhobo zokusebenza eziphambiliichaza indlela ekhawulezayo, esebenzayo, neyobuhlobo nokusingqongileyo yokubuyisela i-lithium ekhethiweyo kusetyenziswa imitha ye-microwave kunye nesinyibilikisi esibola lula. Abaphandi kwiYunivesithi yaseRice eMelika baphuhlise le nkqubo intsha, enokubuyisa ukuya kuthi ga kwi-50% ye-lithium kwii-cathodes zebhetri ye-lithium-ion esetyenzisiweyo (LIB) kwimizuzwana engama-30 kuphela, ijongana nomqobo omkhulu kubuchwepheshe bokuphinda usebenzise i-LIB.

Okwangoku, imfuno ye-lithium, isinyithi esimhlophe njengesilivere, iyanda kakhulu, idlula umbane ofumanekayo.

Iindlela zemveli zokufumana i-lithium kwiibhetri ezisetyenzisiweyo ziyingozi kwindalo kwaye azisebenzi kakuhle. Imingeni ephambili ibandakanya ungcoliseko lwe-lithium kunye nokulahleka ngexesha lenkqubo yokubuyisela, kunye nokusetyenziswa kwamandla aphezulu. Ekubeni i-lithium idla ngokukhutshwa emva kwezinye izinyithi, abaphandi baye bafuna iindlela ezijolise ngokukodwa ekubuyiseleni i-lithium.

Kolu phononongo, abaphandi basebenzise umxube we-choline chloride kunye ne-ethylene glycol njenge-deep eutectic solvent (DES). Ngaphambili bafumanise ukuba ngexesha lenkqubo yokukhupha i-DES, ii-lithium ion zijikelezwe zii-chloride ion ezivela kwi-choline chloride kwaye zifakwe kwisisombululo.

Ukuze kufunxwe ezinye iintsimbi ezifana ne-cobalt okanye i-nickel, zombini i-choline chloride kunye ne-ethylene glycol ziyafuneka. Phakathi kwezi zinto, yi-choline chloride kuphela efunxa ii-microwave ngokufanelekileyo. Abaphandi bafaka inkunkuma yebhetri kwi-solvent kwaye basebenzise imitha ye-microwave, nto leyo evumela ukuba kuphume i-lithium ekhethiweyo kwezinye iintsimbi.

Ukusebenzisa imitha ye-microwave kule nkqubo kufana nokufudumeza ukutya ngokukhawuleza kwi-oven ye-microwave ekhitshini. Amandla adluliselwa ngqo kwiimolekyuli, okwenza impendulo ikhawuleze kakhulu kuneendlela zokufudumeza zemveli.

Abaphandi bafumanise ukuba ngenkqubo ye-microwave, ukukhupha i-87% ye-lithium kuthathe imizuzu eli-15, ngelixa ukufikelela kwinqanaba elifanayo lokubuyisela kwimeko yesiqhelo ngokufudumeza ioyile yokuhlamba kwakufuna iiyure ezili-12. Le ndlela entsha iphucula kakhulu ukusebenza kakuhle kwezoqoqosho kunye nempembelelo yokusingqongileyo yokuphinda kusetyenziswe iibhetri ze-lithium-ion, inika isisombululo esitsha esizinzileyo kwingxaki ekhulayo yehlabathi.

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