1. Izinkinga zokungcola ngemva kokusebenzisa kabusha i-lithium iron phosphate
Imakethe yokuvuselela amabhethri kagesi inkulu kakhulu, futhi ngokusho kwezikhungo zocwaningo ezifanele, inani eliqongelela amabhethri kagesi aseShayina asebethathe umhlalaphansi kulindeleke ukuthi lifinyelele ku-137.4MWh ngo-2025.
Ukuthatha amabhethri e-lithium iron phosphateIsibonelo, kunezindlela ezimbili eziyinhloko zokusebenzisa kabusha nokusetshenziswa kwamabhethri kagesi ahlobene nawo angasebenzi: enye ukusetshenziswa kwe-cascade, kanti enye ukudiliza nokuvuselela.
Ukusetshenziswa kwe-Cascade kubhekisela ekusetshenzisweni kwamabhethri kagesi e-lithium iron phosphate anomthamo osele ophakathi kuka-30% kuya ku-80% ngemva kokuhlukaniswa nokuhlanganiswa kabusha, bese uwasebenzisa ezindaweni ezinomthamo ophansi wamandla njengokugcina amandla.
Ukudiliza nokuvuselela, njengoba igama lisikisela, kubhekisela ekudilizweni kwamabhethri kagesi e-lithium iron phosphate lapho amandla asele engaphansi kuka-30%, kanye nokubuyiselwa kwezinto zawo zokusetshenziswa, njenge-lithium, i-phosphorus, ne-iron ku-electrode enhle.
Ukudilizwa nokusetshenziswa kabusha kwamabhethri e-lithium-ion kunganciphisa ukumbiwa kwezinto ezintsha zokusetshenziswa ukuze kuvikelwe imvelo futhi kube nenani elikhulu kwezomnotho, kunciphisa kakhulu izindleko zokumbiwa, izindleko zokukhiqiza, izindleko zabasebenzi, kanye nezindleko zokuhlelwa komugqa wokukhiqiza.
Ukugxila kokudilizwa nokusetshenziswa kabusha kwebhethri le-lithium-ion kuqukethe ikakhulukazi izinyathelo ezilandelayo: okokuqala, ukuqoqa nokuhlukanisa amabhethri e-lithium angcolile, bese uhlukanisa amabhethri, bese ekugcineni uhlukanisa futhi ucwengisise izinsimbi. Ngemva kokusebenza, izinsimbi nezinto ezitholiwe zingasetshenziswa ekukhiqizeni amabhethri amasha noma eminye imikhiqizo, okusindisa kakhulu izindleko.
Kodwa-ke, manje okuhlanganisa neqembu lezinkampani zokuvuselela amabhethri, njenge-Guangdong Bangpu Circular Technology Co., Ltd., engaphansi kwe-Ningde Times Holding Co., Ltd., bonke babhekene nenkinga enzima: ukuvuselela amabhethri kuzokhiqiza imikhiqizo enobuthi futhi kukhiphe ukungcola okuyingozi. Imakethe idinga ubuchwepheshe obusha ngokushesha ukuthuthukisa ukungcola kanye nobuthi bokuvuselela amabhethri.
2. I-LBNL ithole izinto ezintsha zokuxazulula izinkinga zokungcola ngemva kokusebenzisa kabusha amabhethri.
Muva nje, iLawrence Berkeley National Laboratory (LBNL) e-United States imemezele ukuthi ithole izinto ezintsha ezingasebenzisa kabusha amabhethri e-lithium-ion alahlekile ngamanzi kuphela.
I-Lawrence Berkeley National Laboratory yasungulwa ngo-1931 futhi iphethwe yi-University of California yeHhovisi Lesayensi LoMnyango Wezamandla wase-US. Iwine imiklomelo ye-Nobel engu-16.
Izinto ezintsha ezasungulwa yiLawrence Berkeley National Laboratory zibizwa ngokuthi i-Quick-Release Binder. Amabhethri e-lithium-ion enziwe ngalezi zinto angaphinde asetshenziswe kalula, anobungani nemvelo, futhi angabi nobuthi. Adinga kuphela ukuhlukaniswa bese efakwa emanzini ane-alkaline, bese enyakaziswa kancane ukuze ahlukanise izakhi ezidingekayo. Ngemuva kwalokho, izinsimbi ziyahlungwa ziphume emanzini bese zomiswa.
Uma kuqhathaniswa nokusetshenziswa kabusha kwe-lithium-ion kwamanje, okubandakanya ukugaywa kwamabhethri, kulandelwe ukushiswa kokwehlukaniswa kwensimbi nezinto, inobuthi obukhulu kanye nokusebenza kabi kwemvelo. Izinto ezintsha zifana nobusuku nemini uma ziqhathaniswa.
Ngasekupheleni kukaSepthemba 2022, lobu buchwepheshe bakhethwa njengobunye bobuchwepheshe obuyi-100 obushintshayo obuthuthukiswe emhlabeni wonke ngo-2022 yi-R&D 100 Awards.
Njengoba sazi, amabhethri e-lithium-ion aqukethe ama-electrode amahle nangalungile, isihlukanisi, i-electrolyte, nezinto zokwakha, kodwa indlela lezi zingxenye ezihlanganiswa ngayo kumabhethri e-lithium-ion ayaziwa kahle.
Kumabhethri e-lithium-ion, into ebalulekile egcina isakhiwo sebhethri yi-glue.
I-Quick-Release Binder entsha etholwe abacwaningi beLawrence Berkeley National Laboratory yenziwe nge-polyacrylic acid (PAA) kanye ne-polyethylene imine (PEI), ezixhunywe ngezibopho phakathi kwama-athomu e-nitrogen ashajwe kahle ku-PEI kanye nama-athomu e-oxygen ashajwe kabi ku-PAA.
Uma i-Quick-Release Binder ifakwa emanzini ane-alkaline aqukethe i-sodium hydroxide (Na+OH-), ama-ion e-sodium angena ngokuzumayo endaweni yokunamathela, ahlukanise ama-polymer amabili. Ama-polymer ahlukanisiwe ayancibilika oketshezini, akhulule noma yiziphi izingxenye ze-electrode ezifakiwe.
Ngokuphathelene nezindleko, uma isetshenziswa ukukhiqiza ama-electrode amahle namabi ebhethri le-lithium, intengo yalesi sinamathelisi cishe iyingxenye yeshumi yalezi ezimbili ezisetshenziswa kakhulu.
Isikhathi sokuthunyelwe: Ephreli-25-2023