Ukungalungi kwebhetri ye-lithium iron phosphate
Ingaba into ephathekayo inamandla okusetyenziswa kunye nophuhliso, ngaphezu kweenzuzo zayo, into ephambili kukuba ingaba izinto eziphathekayo zineziphene ezisisiseko.
Okwangoku, i-lithium iron phosphate ikhethwa ngokubanzi njengezinto ze-cathode zamandla e-lithium-ion iibhetri e-China.Abahlalutyi beemarike abasuka koorhulumente, amaziko ophando lwenzululwazi, amashishini kunye neenkampani zokhuseleko zinethemba malunga nale nto kwaye ziyithatha njengesikhokelo sophuhliso lweebhetri ze-lithium-ion zamandla.Ngokutsho uhlalutyo lwezizathu, kukho ikakhulu ezi ngongoma zimbini zilandelayo: Okokuqala, ngenxa yempembelelo yophando kunye nolwalathiso uphuhliso eUnited States, iinkampani Valence kunye A123 eUnited States kuqala wasebenzisa lithium yentsimbi phosphate njengoko izinto cathode. iibhetri ze-lithium ion.Okwesibini, izinto ze-lithium manganate ezinobushushu obuphezulu bokuhamba ngebhayisikile kunye nokusebenza kokugcina okungasetyenziselwa amandla e-lithium-ion iibhetri azizange zilungiswe e-China.Nangona kunjalo, i-lithium iron phosphate nayo ineziphene ezisisiseko ezingenakuhoywa, ezinokushwankathelwa ngolu hlobo lulandelayo:
1. Kwinkqubo ye-sintering yokulungiswa kwe-lithium iron phosphate, kunokwenzeka ukuba i-iron oxide ingancitshiswa ibe yintsimbi elula phantsi kweqondo lokushisa eliphezulu lokunciphisa umoya.I-iron, eyona nto ye-taboo kwiibhetri, inokubangela i-micro short circuit yeebhetri.Esi sizathu esona sizathu sokuba iJapan ingasebenzisi le nto njengezinto ze-cathode zamandla ohlobo lweebhetri ze-lithium ion.
2. I-lithium iron phosphate ineziphene ezithile zokusebenza, ezifana ne-low tamping density kunye ne-compaction density, ekhokelela kuxinano oluphantsi lwamandla ebhetri ye-lithium ion.Ukusebenza kweqondo lokushisa eliphantsi kubi, nokuba i-nano yayo - kunye ne-carbon coating ayisombululi le ngxaki.Xa uGqr Don Hillebrand, umlawuli we-Energy Storage System Centre ye-Argonne National Laboratory, wathetha malunga nokusebenza kobushushu obuphantsi bebhetri ye-lithium iron phosphate, wayichaza njengento eyoyikekayo.Iziphumo zabo zovavanyo kwi-lithium iron phosphate ibhetri ibonise ukuba ibhetri ye-lithium iron phosphate ayinakukwazi ukuqhuba izithuthi zombane kwiqondo lokushisa eliphantsi (ngaphantsi kwe-0 ℃).Nangona abanye abavelisi bebanga ukuba izinga lokugcinwa kwamandla ebhetri ye-lithium iron phosphate lilungile kwiqondo lokushisa eliphantsi, liphantsi kwemeko yokukhutshwa okuphantsi kwangoku kunye nokukhutshwa okuphantsi kombane wokusika.Kule meko, izixhobo azikwazi ukuqaliswa konke konke.
3. Iindleko zokulungiselela izinto kunye neendleko zokwenziwa kweebhetri ziphezulu, imveliso yeebhetri iphantsi, kwaye ukuhambelana kubi.Nangona iipropathi ze-electrochemical zezixhobo ziye zaphuculwa yi-nanocrystallization kunye ne-carbon coating ye-lithium iron phosphate, ezinye iingxaki ziye zaziswa, ezinjengokuncitshiswa koxinano lwamandla, ukuphuculwa kweendleko ze-synthesis, ukusebenza kakubi kwe-electrode processing kunye nokusingqongileyo. iimfuno.Nangona i-chemical elements Li, Fe kunye ne-P kwi-lithium iron phosphate zizityebi kakhulu kwaye ixabiso liphantsi, ixabiso lemveliso ye-lithium iron phosphate elungiselelwe ayiphantsi.Nangona emva kokususa iindleko zophando kunye nophuhliso lwangaphambili, iindleko zenkqubo yesi sixhobo kunye neendleko eziphezulu zokulungiselela iibhetri ziya kwenza ixabiso lokugqibela lokugcinwa kwamandla eyunithi liphezulu.
4. Ukungaguquguquki kakuhle kwemveliso.Okwangoku, akukho mveliso ye-lithium iron phosphate e-China inokusombulula le ngxaki.Ngokombono wokulungiswa kwezinto, i-synthesis reaction ye-lithium iron phosphate yimpendulo eyinkimbinkimbi ye-heterogeneous reaction, kuquka i-phosphate eqinile, i-iron oxide kunye netyuwa ye-lithium, i-carbon eyongeziweyo ye-precursor kunye nokunciphisa isigaba segesi.Kule nkqubo yokusabela enzima, kunzima ukuqinisekisa ukuhambelana kwempendulo.
5. Imiba yepropathi enomgangatho ophezulu wokuqonda.Okwangoku, i-patent esisiseko ye-lithium iron phosphate iphethwe yiYunivesithi yaseTexas e-United States, ngelixa i-patent ene-carbon coated isetyenziselwa abantu baseCanada.La malungelo awodwa omenzi mabini asisiseko akanakugqithwa.Ukuba imirhumo yelungelo elilodwa lomenzi wechiza ibandakanyiwe kwindleko, ixabiso lemveliso liya konyuka ngakumbi.
Ukongeza, ukusuka kumava e-R & D kunye nokuveliswa kweebhetri ze-lithium-ion, iJapan lilizwe lokuqala ukuthengisa iibhetri ze-lithium-ion, kwaye ihlala ihlala kwimarike yebhetri ye-lithium-ion ephezulu.Nangona iUnited States ihamba phambili kuphando olusisiseko, okwangoku akukho mveliso omkhulu webhetri ye-lithium ion.Ke ngoko, kunengqiqo ngakumbi ukuba iJapan ikhethe i-lithium manganate eguquliweyo njengesixhobo se-cathode samandla ebhetri ye-lithium ion.NaseUnited States, isiqingatha sabavelisi sisebenzisa i-lithium iron phosphate kunye ne-lithium manganate njengezixhobo ze-cathode zohlobo lweebhetri ze-lithium ion, kwaye urhulumente wobumbano ukwaxhasa uphando kunye nophuhliso lwezi nkqubo zimbini.Ngokubhekiselele kwezi ngxaki zingasentla, i-lithium iron phosphate inzima ukusetyenziswa ngokubanzi njengento ye-cathode yamandla e-lithium-ion iibhetri kwizithuthi zamandla amatsha kunye nezinye iindawo.Ukuba sinokuyicombulula ingxaki yokungahambi kakuhle kwebhayisikile yokushisa okuphezulu kunye nokusebenza kokugcinwa kwe-lithium manganate, iya kuba namandla amakhulu ekusebenziseni amandla ebhetri ye-lithium-ion kunye neenzuzo zayo zexabiso eliphantsi kunye nokusebenza kwezinga eliphezulu.
Ixesha lokuposa: Oct-19-2022