Ukungalungi kwebhethri ye-lithium iron phosphate
Ukuthi into ethile inamandla okusetshenziswa nokuthuthukiswa, ngaphezu kwezinzuzo zayo, ukhiye ukuthi ingabe okokusebenza kunokukhubazeka okuyisisekelo.
Njengamanje, i-lithium iron phosphate ikhethwa kabanzi njenge-cathode material yamandla amabhethri e-lithium-ion e-China.Abahlaziyi bezimakethe abavela kohulumeni, izikhungo zocwaningo lwesayensi, amabhizinisi ngisho nezinkampani zezokuphepha banethemba ngale nto futhi bayibheka njengesiqondiso sokuthuthukiswa kwamabhethri e-lithium-ion.Ngokusho kokuhlaziywa kwezizathu, kukhona ikakhulukazi amaphuzu amabili alandelayo: Okokuqala, ngenxa yethonya lesiqondiso socwaningo nentuthuko e-United States, izinkampani ze-Valence ne-A123 e-United States zaqala ukusebenzisa i-lithium iron phosphate njenge-cathode material. amabhethri e-lithium ion.Okwesibili, izinto ze-lithium manganate ezinezinga lokushisa eliphezulu lokuhamba ngebhayisikili nokusebenza kwesitoreji esingasetshenziselwa amandla amabhethri e-lithium-ion awakalungiswa e-China.Kodwa-ke, i-lithium iron phosphate nayo inokukhubazeka okuyisisekelo okungenakunakwa, okungafingqwa ngale ndlela elandelayo:
1. Enqubweni ye-sintering yokulungiswa kwe-lithium iron phosphate, kungenzeka ukuthi i-iron oxide ingancishiswa ibe yinsimbi elula ngaphansi komkhathi wokunciphisa izinga lokushisa eliphezulu.I-ayoni, into engavumelekile kakhulu kumabhethri, ingabangela ukujikeleza okuncane kwamabhethri.Lesi yisizathu esiyinhloko sokuthi kungani iJapane ingasebenzisanga le nto njengezinto ze-cathode zamandla ohlobo lwamabhethri e-lithium ion.
2. I-lithium iron phosphate inokukhubazeka okuthile ekusebenzeni, okufana nokuminyana okuphansi nokuminyana, okuholela ekumineni kwamandla okuphansi kwebhethri ye-lithium ion.Ukusebenza kokushisa okuphansi kubi, ngisho noma i-nano yayo - ne-carbon coating ayixazululi le nkinga.Lapho uDkt Don Hillebrand, umqondisi we-Energy Storage System Center ye-Argonne National Laboratory, ekhuluma ngokusebenza okuphansi kwezinga lokushisa kwebhethri ye-lithium iron phosphate, wakuchaza njengokubi.Imiphumela yabo yokuhlola kubhethri ye-lithium iron phosphate ibonise ukuthi ibhethri ye-lithium iron phosphate ayikwazanga ukushayela izimoto zikagesi ezingeni lokushisa eliphansi (ngaphansi kuka-0 ℃).Nakuba abanye abakhiqizi bethi izinga lokugcinwa kwamandla ebhethri le-lithium iron phosphate lihle ekushiseni okuphansi, lingaphansi kwesimo sokuphuma okuphansi kwamandla okukhipha amandla amanje kanye nokukhishwa okuphansi kwe-voltage yokusika.Kulokhu, imishini ayikwazi ukuqaliswa nhlobo.
3. Izindleko zokulungiselela izinto zokwakha kanye nezindleko zokukhiqiza amabhethri ziphezulu, isivuno samabhethri siphansi, futhi ukungaguquguquki kubi.Nakuba izakhiwo ze-electrochemical zezinto zokwakha zithuthukisiwe yi-nanocrystallization kanye ne-carbon coating ye-lithium iron phosphate, ezinye izinkinga ziye zalethwa, njengokunciphisa ukuminyana kwamandla, ukuthuthukiswa kwezindleko zokuhlanganiswa, ukusebenza kabi kokucubungula ama-electrode kanye nemvelo enokhahlo. izidingo.Nakuba izakhi zamakhemikhali i-Li, Fe no-P ku-lithium iron phosphate zicebile kakhulu futhi izindleko ziphansi, izindleko zomkhiqizo we-lithium iron phosphate olungiselelwe azikho phansi.Ngisho nangemva kokukhipha izindleko zocwaningo nentuthuko zangaphambi kwesikhathi, izindleko zenqubo yalesi sici kanye nezindleko eziphakeme zokulungiselela amabhethri zizokwenza izindleko zokugcina zeyunithi yokugcina amandla zibe phezulu.
4. Ukungaguquguquki kahle komkhiqizo.Njengamanje, ayikho i-lithium iron phosphate material factory e-China engaxazulula le nkinga.Ngokombono wokulungiswa kwezinto, ukusabela kokuhlanganiswa kwe-lithium iron phosphate kuwukusabela okuyinkimbinkimbi, okuhlanganisa i-phosphate eqinile, i-iron oxide ne-lithium usawoti, i-carbon added precursor kanye nokunciphisa isigaba segesi.Kule nqubo yokusabela eyinkimbinkimbi, kunzima ukuqinisekisa ukuhambisana kokusabela.
5. Izinkinga zempahla yobuhlakani.Njengamanje, ilungelo lobunikazi eliyisisekelo le-lithium iron phosphate liphethwe yiNyuvesi yaseTexas e-United States, kuyilapho ilungelo lobunikazi elihlanganiswe ngekhabhoni lisetshenziswa abantu baseCanada.Lawa malungelo obunikazi amabili ayisisekelo awakwazi ukudlula.Uma izinkokhelo zelungelo lobunikazi zifakiwe ezindlekweni, izindleko zomkhiqizo zizokwenyuka nakakhulu.
Ngaphezu kwalokho, kusukela kokuhlangenwe nakho kwe-R & D nokukhiqizwa kwamabhethri e-lithium-ion, iJapane iyizwe lokuqala ukuthengisa amabhethri e-lithium-ion, futhi ihlale ithatha imakethe yebhethri ye-lithium-ion ephezulu.Nakuba i-United States ihola ocwaningweni oluthile oluyisisekelo, kuze kube manje akekho umkhiqizi omkhulu webhethri ye-lithium ion.Ngakho-ke, kunengqondo kakhulu ukuthi i-Japan ikhethe i-lithium manganate eguquliwe njenge-cathode material yohlobo lwamandla ebhethri ye-lithium ion.Ngisho nase-United States, ingxenye yabakhiqizi isebenzisa i-lithium iron phosphate ne-lithium manganate njengezinto ze-cathode zamandla ohlobo lwamabhethri e-lithium ion, futhi uhulumeni wobumbano ubuye asekele ucwaningo nokuthuthukiswa kwalezi zinhlelo ezimbili.Ngenxa yalezi zinkinga ezingenhla, i-lithium iron phosphate inzima ukusetshenziswa kabanzi njenge-cathode material yamandla amabhethri e-lithium-ion ezimotweni zamandla amasha nakweminye imikhakha.Uma singakwazi ukuxazulula inkinga yokungasebenzi kahle kokuhamba ngebhayisikili okusezingeni eliphezulu nokugcinwa kwesitoreji kwe-lithium manganenate, izoba namandla amakhulu ekusetshenzisweni kwamandla amabhethri e-lithium-ion anezinzuzo zayo zezindleko eziphansi nokusebenza kwezinga eliphezulu.
Isikhathi sokuthumela: Oct-19-2022