1.Izinkinga zokungcola ngemva kokuvuselela i-lithium iron phosphate
Imakethe yokuphinda igaywe kabusha kwamabhethri kagesi inkulu, futhi ngokwezikhungo zocwaningo ezifanele, isamba sokuqongelelwa kwebhethri lamandla asethathe umhlalaphansi eChina kulindeleke ukuthi sifinyelele ku-137.4MWh ngo-2025.
Ukuthatha amabhethri e-lithium iron phosphatenjengesibonelo, ikakhulukazi kunezindlela ezimbili zokugaywa kabusha kanye nokusetshenziswa kwamabhethri wamandla ahlobene asethathe umhlalaphansi ahlobene: eyodwa ukusetshenziswa kwe-cascade, kanti enye iwukuhlakazwa nokugaywa kabusha.
Ukusetshenziswa kwe-Cascade kubhekisela ekusetshenzisweni kwamabhethri e-lithium iron phosphate amandla asele aphakathi kuka-30% kuya ku-80% ngemva kokuhlakazwa nokuhlanganiswa kabusha, futhi asetshenziswe ezindaweni ezingenamandla amancane njengokugcina amandla.
Ukudilizwa kanye nokugaywa kabusha, njengoba igama libonisa, kubhekisela ekuhlakazweni kwamabhethri anamandla e-lithium iron phosphate lapho umthamo osele ungaphansi kuka-30%, kanye nokutholwa kwezinto zawo zokusetshenziswa, njenge-lithium, i-phosphorus, nensimbi ku-electrode ephozithivu.
Ukuhlakazwa kanye nokugaywa kabusha kwamabhethri e-lithium-ion kunganciphisa ukumbiwa kwezinto ezintsha zokusetshenziswa ukuze kuvikelwe imvelo futhi kube nenani elikhulu lezomnotho, kunciphisa kakhulu izindleko zezimayini, izindleko zokukhiqiza, izindleko zabasebenzi, kanye nezindleko zesakhiwo somugqa wokukhiqiza.
Ukugxilwa kokuhlakazwa nokugaywa kabusha kwebhethri ye-lithium-ion ikakhulukazi kuhlanganisa izinyathelo ezilandelayo: okokuqala, ukuqoqa nokuhlukanisa amabhethri e-lithium angcolile, bese uqaqa amabhethri, futhi ekugcineni uhlukanise futhi ucwenge izinsimbi.Ngemva kokuhlinzwa, izinsimbi ezitholiwe nezinto zokwakha zingasetshenziselwa ukukhiqizwa kwamabhethri amasha noma eminye imikhiqizo, okonga kakhulu izindleko.
Kodwa-ke, manje okuhlanganisa neqembu lezinkampani ezigaya kabusha amabhethri, njengenkampani engaphansi kwe-Ningde Times Holding Co., Ltd. i-Guangdong Bangpu Circular Technology Co., Ltd., zonke zibhekene nenkinga enkulu: ukugaywa kabusha kwebhethri kuzokhiqiza imikhiqizo ewushevu futhi kukhiphe ukungcola okuyingozi. .Imakethe idinga ngokushesha ubuchwepheshe obusha ukwenza ngcono ukungcoliswa kanye nobuthi bokugaywa kabusha kwamabhethri.
I-2.LBNL ithole izinto ezisetshenziswayo ezintsha zokuxazulula izinkinga zokungcola ngemva kokugaywa kabusha kwebhethri.
Muva nje, i-Lawrence Berkeley National Laboratory(LBNL) e-United States imemezele ukuthi bathole into entsha engasebenzisa kabusha amabhethri e-lithium-ion amoshwe ngamanzi nje.
I-Lawrence Berkeley National Laboratory yasungulwa ngo-1931 futhi iphethwe yiNyuvesi yaseCalifornia yeHhovisi Lesayensi Lomnyango Wezamandla wase-US.Iwine imiklomelo yeNobel eyi-16.
Impahla entsha esungulwe yiLabhorethri Kazwelonke ye-Lawrence Berkeley ibizwa nge-Quick-Release Binder.Amabhethri e-lithium-ion enziwe ngale nto angakwazi ukugaywa kabusha kalula, alungele imvelo, futhi angabi nobuthi.Zidinga kuphela ukuhlakazwa futhi zifakwe emanzini ane-alkaline, futhi zinyakaziswe kahle ukuze zihlukanise izakhi ezidingekayo.Khona-ke, izinsimbi ziyahlungwa emanzini futhi zomiswe.
Uma kuqhathaniswa nokugaywa kabusha kwe-lithium-ion yamanje, okubandakanya ukucutshungulwa nokugaya amabhethri, okulandelwa ukushiswa kwensimbi nokuhlukaniswa kwezakhi, inobuthi obunzima nokusebenza kabi kwemvelo.Impahla entsha ifana nobusuku nemini uma iqhathaniswa.
Ngasekupheleni kukaSepthemba 2022, lobu buchwepheshe bakhethwa njengobunye bobuchwepheshe boguquko obuyi-100 obuthuthukiswe emhlabeni wonke ngo-2022 yi-R&D 100 Awards.
Njengoba sazi, amabhethri e-lithium-ion aqukethe ama-electrode alungile futhi angalungile, isihlukanisi, i-electrolyte, nezinto zokwakha, kodwa ukuthi lezi zingxenye zihlanganiswa kanjani kumabhethri e-lithium-ion akwaziwa kahle.
Kumabhethri e-lithium-ion, into ebalulekile egcina ukwakheka kwebhethri inamathela.
I-Quick-Release Binder entsha etholwe abacwaningi be-Lawrence Berkeley National Laboratory yenziwe nge-polyacrylic acid (PAA) ne-polyethylene imine (PEI), exhunywe ngamabhondi phakathi kwama-athomu e-nitrogen e-nitrogen ashajwe kahle ku-PEI kanye nama-athomu omoya-mpilo 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, ehlukanisa ama-polymer amabili.Ama-polymer ahlukanisiwe ancibilika oketshezini, akhiphe noma yiziphi izingxenye ze-electrode ezishumekiwe.
Mayelana nezindleko, uma kusetshenziselwa ukukhiqiza ama-electrode ebhethri e-lithium positive kanye nenegethivu, intengo yalokhu okunamathelayo icishe ibe ingxenye eyodwa kweziyishumi kokubili okuvame ukusetshenziswa kakhulu.
Isikhathi sokuthumela: Apr-25-2023