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Esi sihloko se-lithium sele sithetha ngobomi obudala. Senze isishwankathelo esilula sokuxhathisa i-lithium yangoku. Ngokubanzi, i-metal Li powder kunye ne-Li foil pen zisetyenziselwa ukuphumeza iteknoloji ye-tonifying engalunganga, kwaye ikwangoku Indlela eqinile esetyenziswa ngumenzi webhetri ye-lithium-ion, kodwa imiba yokhuseleko kunye neendleko eziphezulu ziyiengxaki zeMetal. Li lys.
Ngokwahlukileyo, ukuphakama okulungileyo kwenkqubo ye-lithium kulungile, ayitshintshi inkqubo ekhoyo, kodwa ukukhula kobugcisa kuphantsi, kwaye abavelisi bezinto ezifanelekileyo baya kuqalisa iimveliso ezihambelanayo. Isisombululo esilungileyo se-electrode Ukongeza ekongezeni inani elincinci lomthamo ophezulu kwinkqubo ye-electrode efanelekileyo, kukho indlela yokongeza izinto ezingaphezulu kwe-Li ukusuka kwi-positive electrode material synthesis, ngaloo ndlela kugcinwe i-LI engaphezulu kwizinto ezilungileyo, kwintlawulo yokuqala. I-LIs kwinkqubo inokukhulula izinto ze-LI ezongezelela ukusetyenziswa kakubi kwe-electrode, ngaloo ndlela kufezekise injongo yokuphucula ukusebenza kakuhle kokuqala. Ngeendlela ezimbini zokongeza i-lithium engaphezulu kwezinto eziphathekayo ze-electrode, eyokuqala kukuba kwizinto eziphathekayo ze-electrode ezifakwe yi-electrochemical reaction, izinto eziphathekayo ze-electrode ngokuqhelekileyo zenziwe zibe yi-semi-battery, kwaye izinto eziphathekayo ze-electrode zidibene.
Izinto ezintle ze-electrode zenziwa zibe yibhetri iyonke kwi-electrode engalunganga ngokubanzi, ngaloo ndlela ifezekisa i-lithium. Le ndlela ilula, kwaye iyakwazi ukulawula ubungakanani obufakwe kwi-Li, ilungele ukusetyenziswa kwibhubhoratri, kodwa ukungonakali kucacile kakhulu, umsebenzi unzima kakhulu, kwaye akukho xabiso elisebenzayo kwi-machining yangempela. . Enye indlela kukongeza i-LI engaphezulu ngeendlela zemichiza.
Nangona ubunzima bobugcisa buphezulu kakhulu, musa ukongeza iinkqubo ezongezelelweyo ekusetyenzweni kwebhetri, ngoko ke ixabiso elisebenzayo. Ingcamango ye-pre-lithium emihle ivela eJamani uGiuliogabrielli et al, u-Giuliogabrielli wabika okokuqala nge-chemical method for first time by chemical method, kodwa i-Giuliogabrielli inqweneleka ukuba idibanise i-Li1 + XNi0.5Mn1.
5O4 izinto (200mAh / g) Indlela lini0.5Mn1.5O4 izinto (147 mAh / g) umthamo ukuguqulwa de 2017 Giuliogabrielli kunye nezinye iitalente baye bafumanisa ukuba amandla ebhetri Lithium-ion yokuqala ibhetri lithium-ion.
Emva kokugqithiswa kwe-LI yenkqubo yokuqala yokutshaja, i-Li1 + XNi0.5Mn1.5O4 impahla yaguqulelwa kwi-Li1 + XNi0 eqhelekileyo.
5MN1.5O4 izinto kunye ne-lini0.5Mn1.
Izixhobo ze-5MN1.5O4 ngokulawula imilinganiselo eyahlukeneyo. Izinto eziphathekayo zixutywe, ezinokuthi zilawule ngokuchanekileyo umlinganiselo we-Li, ohlawulela ngokupheleleyo i-electrode engafanelekanga kwi-reversible capacity ngexesha lenkqubo yokuqala yokutshaja, ekwayinto entsha kunye nokuphumelela kokuncedisa okulungileyo.
I-Giuliogabrielli synthesis ye-Li1 + XNi0.5Mn1.5O4 impahla yindlela yokudibanisa imichiza, kwaye kwi-synthesis yezinto eziphathekayo, ipeni isanda kufakwa kwinkqubo yokudibanisa, ngoko ke iyasebenza ngakumbi, esebenzayo ukuphatha ukusebenza kakuhle kwe-SiOx. iibhetri ze-lithium-ion.
Indlela. Nangona kunjalo, i-LI engaphezulu yongezwa kwizinto ezintle kwaye yenza isakhiwo esizinzile, kwaye uqinisekise ukuba ukusebenza komjikelo wezinto eziphathekayo akuyiyo impembelelo, u-Xiaobian uyawaxabisa onke amanqaku apapashwe nguGiuliogabrielli, kwaye akazange abone Giuliogabrielli Indlela isetyenziswe kwezinye. izinto (umzekelo, izinto zeNCA kunye neNCM), ebonisa kwakhona indlela ukusuka kwicala, ayifanelekanga kuzo zonke izinto ezilungileyo ze-electrode. UVanchiappanaravindan waseIndiya ufumanisa ukuba le ndlela ingasetyenziswa nakwizinto ze-LIVPO4F.
Indlela iVanchiappanaravindan yindlela edibeneyo edibeneyo ye-electrochemical, oko kukuthi, i-LIVPO4F iqala kwibhetri, eyenza i-Li + ifake izinto ze-LIVPO4F. I-Li1.26VPO4F yenziwe, kwaye ibhetri iyachithwa, i-Li1.
I-26VPO4F, kunye nezinto ezimbi ze-electrode (i-A-Fe2O3 eqeshwe), isebenzisa izinto ze-Li1.26VPO4F ukuhlawulela izinto ze-A-Fe2O3 kwinkqubo yokuqala ye-lithium Umthamo ongaguqukiyo (malunga ne-503mAh / g), uphucula kakhulu ubuninzi bamandla yebhetri yonke. Nangona kunjalo, amaNyathelo kufuneka aqale enze isiqingatha seseli.
Ukusetyenziswa kwendlela ye-electrochemical yokufakela i-Li + kwizinto ezilungileyo, ngoko ngokwenene ukubaluleka kokusetyenziswa kokwenene ekuqhutyweni kwangempela, ngoko ke okulandelayo kuya kuqhubeka nokuhlola indlela yokudlula indlela yeekhemikhali ngokuthe ngqo synthesis lithium impahla LI1.26VPO4F, ukuqonda okulungileyo. tonic. I-pre-lithium efanelekileyo yindlela efanelekileyo yokunyanga i-electrode ye-SiOx engalunganga kwaye iphakamisa ubuninzi bamandla ebhetri ye-lithium ion, kodwa ukubethelela i-LI engaphezulu kwi-electrode efanelekileyo kunye nokugcina isakhiwo esizinzileyo, sijongene nomngeni omkhulu, ngoko ke i-presitive yangoku yangoku. -lithium Kuyimfuneko ukuba ugxininise kwi-LIMN2O4 kunye neLini0.
Izinto ze-5Mn1.5O4 ezigxininiswe kwisakhiwo esinganyangekiyo somqolo, kunye ne-LI element engaphezulu ingasetyenziselwa izinto ze-NCA kunye ne-NCM, kwaye ayichaphazeli ukusebenza kwe-NCA kunye ne-NCM. Kuya kuba nexabiso elikhulu lokusebenzisa.
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