Iibhetri ze-Lithium-ion zezithuthi zombane (EVs) zijongene nemiba yokhuseleko kunye nokuzinza ngenxa yokushisa okugqithisiweyo kwe-separators, iisekethe ezimfutshane kunye nokunciphisa ukusebenza kakuhle. Ngenjongo yokunciphisa ezi ntsilelo, abaphandi basebenzise ubuchule be-graft polymerization kwaye baphuhlisa i-silica nanoparticles ehlaziyiweyo yezahluli ezizinzile kwaye zihlala zihleli. Iibhetri ezinezi zahluli zikhuselekile kwaye zibonise ukusebenza okuphuculweyo. Olu phuhliso lunokuba negalelo ekwamkelweni kwee-EVs ngokubhekiselele kwicandelo lezothutho le-decarbonising.
ILithium-ion etshajwayo iibhetri (okanye iibhetri ze-Li-ion okanye ii-LIBs) ziye zaziwa ngokugqithisileyo kwaye zifumaneka kuyo yonke indawo kwiminyaka engamashumi amathathu edlulileyo. Ngenxa yobuninzi bamandla, ubunzima obulula kunye nokutshajwa kwakhona, ezi zisetyenziswa ngokubanzi kwiifowuni eziphathwayo, ii-laptops, izixhobo ezivakalayo-ezibonwayo, ukugcinwa kwamandla kunye neemoto zombane (EVs) kwaye ziye zaba yinxalenye yobomi bemihla ngemihla. Ii-LIBs zi-eco-friendly, zibonelela ngogcino lwamandla acocekileyo kwaye zinegalelo i-decarbonising qoqosho.
Nangona kunjalo, iLithium-ion iibhetri ukujongana nomngcipheko wokhuseleko kwizithuthi zombane (EVs) kunye neenkqubo zokugcina amandla ikakhulu ngenxa yokushisa okugqithisileyo kwezahluli ze-polyolefin. Abahluli banqanda ukudibana ngokuthe ngqo phakathi kwe-cathode kunye ne-anode, kodwa bayanyibilika xa ubushushu bunyuka ukuya kwi-160 °C ngenxa yokushisa. Ngenxa yoko, i-anode kunye ne-cathode inokuqhagamshelana ngokuthe ngqo ngokuqulunqwa kwe-Li dendrites ngoko ke iisekethe ezimfutshane zangaphakathi kunye nokungonelanga kwe-electrolytes kunye nokunciphisa ukusebenza kakuhle.
Kuye kwakho iinzame zokuhlangabezana nale ntsilelo. Ukufaka i-coat of ceramics kwakucatshangelwa kodwa kwafunyaniswa kungafanelekanga kuba kwandisa ubukhulu bezahluli kunye nokunciphisa ukubambelela.
Kuphononongo lwakutsha nje, abaphandi beYunivesithi yeSizwe yase-Incheon basebenzise ubuchule bokugxunyekwa kwepolymerization ukuncamathisela umaleko ofanayo wesilicon dioxide (SiO2) i-nanoparticles kwi-polypropylene (PP) abahluli. Abahluli ke ngoko bahlengahlengise ngokutyabeka kweSiO2 of 200 nm ubukhulu buxhathisa ubushushu ngakumbi kwaye zicinezelwe dendrite ukwakheka ngelixa ukugcina amandla okugcina amandla. Oku kuphakamisa ukuba i-polypropylene-based separator (PPS) yeebhetri ze-Li-ion inokuphuculwa ukuze kuncitshiswe imijikelezo emfutshane yangaphakathi kunye nokwenza ibhetri ikhuseleke kwaye isebenze kakuhle.
Olu phuhliso lufanelekile kwaye luyathembisa kwii-LIB kwizithuthi zombane (EVs) kunye neenkqubo zokugcina amandla. Nje ukuba zithengisiwe, ii-LIBs eziphuculweyo ezinokhuseleko olungcono kunye nokusebenza kakuhle kunokuncedisa ukuthatha i-eco-friendly izithuthi zombane.
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Iingxelo:
- I-Manthiram, A. Umboniso we-lithium-ion battery cathode chemistry. UNat Commun 11, 1550 (2020). https://doi.org/10.1038/s41467-020-15355-0
- Ipaki J., okqhubekayo 2024. I-Ultra-thin SiO2 nanoparticle layered separators yi-surface multi-functionalization isicwangciso kwiibhetri ze-Li-metal: Ukuphuculwa okuphezulu kwe-Li-dendrite ukumelana kunye neempawu ze-thermal. Izinto zokuGcinwa kwamandla. Umqulu 65, February 2024, 103135. DOI: https://doi.org/10.1016/j.ensm.2023.103135
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