Site na ngbanwe na-aga n'ihu nke usoro ike zuru ụwa ọnụ na mmepe ngwa ngwa nke ume ọhụrụ,nchekwa iketeknụzụ ji nke nta nke nta na-aghọ nkwado dị mkpa maka mgbanwe ike na ịkwalite mmepe akụ na ụba n'ọdịnihu.
Okwu Mmalite teknụzụ Batrị Nchekwa Ike
▲Ntughari ike, nchekwa na itinye n'ọrụ
▲Nkewa na Ngwa nke Teknụzụ Nchekwa Ike
▲Nchịkọta nke batrị Nchekwa Ike
▲Ụkpụrụ na-arụ ọrụ na nhazi nke batrị nchekwa ike
▲Ngosipụta arụmọrụ yana okwu metụtara batrị nchekwa ike
Ike bụ ike bụ isi na-ebugharị ụwa na isi akụ nke ọha mmadụ dabere na ya maka mmepe. Site na iji ọkụ mbụ eme ihe ruo ọkụ eletrik nke oge a, mmepe na iji ike eme ihe emewo ka ọganihu nke mmepeanya ma kpụzie usoro mmekọrịta ọha na eze ugbu a.
Site na uto na-aga n'ihu nke mkpa ike zuru ụwa ọnụ yana mmepe ngwa ngwa nke ume ọhụrụ, teknụzụ batrị nchekwa ike apụtala ma bụrụ ogidi dị mkpa nke ngalaba ike. Batrị nchekwa ike nwere ike ịchekwa isi iyi ike na-adịte aka dị ka ikuku na ike anyanwụ wee hapụ ha n'oge oge oke mkpa, na-ahụ nkwụsi ike nke ọkọnọ ike. Nkà na ụzụ a abụghị naanị na-ebelata ịdabere na mmanụ ọkụ ọdịnala mana ọ na-enyekwa nkwa dị mkpa maka inweta usoro ọkụ ọkụ dị ala{2}} na ike na-adigide.
Mmepe teknụzụ batrị nchekwa ike, site na ndu ndu - batrị acid ruo na batrị lithium ọgbara ọhụrụ{1}}, wee ruo na batrị steeti siri ike{2} na batrị ion sodium{3}, na-agbaji mgbe niile site na mgbochi teknụzụ. Site n'ịkwalite njupụta ume, ịgbatị ogologo ndụ, na ịkwalite nchekwa, batrị nchekwa ike egosila atụmanya ngwa ngwa na mpaghara dịka nchekwa nchekwa ike ụlọ, njem njem, na ụkpụrụ grid. Enwere ike ịsị na teknụzụ batrị nchekwa ike abụghị naanị isi maka mgbanwe nhazi ike dị ugbu a kamakwa ọ bụ isi nke grids smart n'ọdịnihu na sistemụ ike kesaa.
Teknụzụ nchekwa ike batrị dabere na Lithium{{0}
▲Nhazi na ụkpụrụ ọrụ nke batrị lithium{0}}
▲Lithium{0} ion batrị cathode ihe
▲Lithium{0} ion batrị electrolyte
▲Nhazi na imepụta batrị lithium{0}ion
N'afọ 1970, MS Whittingham nke ExxonMobil mepụtara batrị lithium - nke mbụ. O jiri titanium disulfide na ọla lithium dị ka electrodes dị mma na nke na-adịghị mma, n'otu n'otu. N'oge ịchaji na ịchaji, a na-eri lithium dara ma na-emepụta ya na electrode na-adịghị mma, ebe titanium disulfide na-agbanye ma na-ewepu ion lithium na electrode dị mma. Usoro abụọ a na-agbanwe agbanwe n'ime oge ndụ batrị niile, si otú ahụ na-emepụta batrị lithium nke abụọ - ion batrị nwere voltaji nke 2V. Na 1982, RR Agarwal na JR Selman nke Illinois Institute of Technology chọpụtara na lithium ion nwere ikike nke ịbanye n'ime graphite, usoro nke na-adị ngwa ngwa ma na-atụgharịghachi, na mmalite mmalite ya. usoro nyocha, mmepe na evolushọn. Site na arụmọrụ ha dị elu ma dị mma, ha na-abanyewanye n'ubi dị iche iche, site na ngwaahịa 3C dị ka ekwentị mkpanaaka na mbadamba ruo na mpaghara ike ike dị ka ụgbọ ala eletrik na nnukwu ebe nchekwa ike dị ka fotovoltaics na ike ikuku, na-emetụta ndụ ọha mmadụ.
Gịnị bụ batrị?
▲ Akụkọ mmepe batrị
▲Mmalite na batrị lithium{0}}
▲ Akụkụ nke batrị lithium{0}}
▲Ihe ndị dị na lithium{0}} batrị ion
Batrị bụ ụdị isi iyi ike. A na-ekekarị isi iyi ike na isi mmalite ike anụ ahụ na isi mmalite ike kemịkal. Ebe ike anụ ahụ na-agụnye ngwaọrụ ndị na-emepụta ike anyanwụ, ngwaọrụ ndị na-emepụta ọkụ ọkụ ọkụ, ndị na-emepụta ọkụ na hydroelectric, wdg; ebe ike kemịkalụ na-ezo aka na ngwaọrụ ndị na-emepụta ike nke nwere ike gbanwee ike kemịkal ozugbo ka ọ bụrụ ike eletrik, ya bụ, batrị kemịkal n'echiche nkịtị, ma ọ bụ naanị batrị.
Sistemu batrị esitela n'ọgbọ anọ: lead{0}} batrị acid, nickel{1}}batrị cadmium, nickel-batrị hydride metal, na batrị lithium{3}}. Ịrụ ọrụ batrị na-aga n'ihu na-aga n'ihu, na nghọta mmadụ banyere sistemu batrị abawanyela. Ugbu a, batrị lithium - batrị ion bụ nke kacha arụ ọrụ na ike - sistemu batrị enwere ike ịchaji nke ọma, na-anọchi anya ọkwa kachasị elu nke nyocha batrị na teknụzụ mmadụ.
Akụkọ nyocha na mmepe nke akụrụngwa phosphate nke lithium iron
▲ Mmepe akụkọ ihe mere eme nke lithium iron phosphate ihe
▲ Patent ọnọdụ nke lithium iron phosphate
▲ Ọmụmụ ihe nhazi na arụmọrụ nke akụrụngwa phosphate iron lithium
Lithium iron phosphate (LiFeP, LFP, nke a makwaara dị ka lithium iron phosphate ma ọ bụ lithium iron phosphate) bụ ihe cathode eji na batrị lithium{0}}. Ihe e ji mara ya bụ enweghị ihe ndị dị oké ọnụ ahịa dị ka cobalt na nickel, ọnụ ahịa akụrụngwa dị ala, yana ụbara phosphorus, lithium na ígwè dị n'ime ụwa, nke nwere ike gboo mkpa ahịa karịrị otu nde tọn kwa afọ. Dị ka cathode ihe onwunwe, lithium iron phosphate nwere a agafeghị oke voltaji arụ ọrụ (3.2V), elu kpọmkwem ikike (170mA · h / g), elu mwepu ike, ngwa ngwa ike ike, ogologo okirikiri ndụ, na ezi nkwụsi ike n'okpuru elu okpomọkụ na elu okpomọkụ gburugburu.
Ngwá ọrụ mmepụta ihe eji arụ ọrụ nke lithium iron phosphate ihe
▲ Ihe eji eme ihe eji emeputa ihe:; Akụrụngwa Ngwakọta; Ngwa eji akpọnwụ akpọnwụ, Ngwa ihe eji eme ihe, ihe eji eme ihe; Ngwa nyocha; Nitrogen Generator; Ngwa nkwakọ ngwaahịa.
Mgbe a na-eji ihe lithium iron phosphate (LFP) cathode ihe na-emepụta batrị lithium{0}ion, ihe ndị a chọrọ maka ịdị ọcha ha, oge na adịghị ọcha ha na-esi ike nke ukwuu. Dịka ọmụmaatụ, mgbe ogo oxidation nke divalent iron dị na LFP ruru 1%, ikike a kapịrị ọnụ nwere ike ibelata karịa 30%. Nke a bụ n'ihi na ígwè trivalent ahụ emepụtara ọhụrụ na-ekpuchi elu LFP, na-akpụ oyi akwa nke na-egbochi mmeghachi omume ime ọzọ. Ọ bụrụ na LFP abanyelarị oxidized, ụzọ mbelata na-esote enweghị ike ịmịpụta LFP n'ihi na ion lithium dị na akụrụngwa efuolarị.
Nkwadebe nke lithium iron phosphate ngwa site ferrous oxalate usoro
▲ Synthesis ụkpụrụ
▲ Isi ihe sịntetịt
▲ Usoro nhazi
▲ Ịrụ ọrụ nke sịntetik ihe
Usoro nke synthesizing lithium iron phosphate iji ferrous oxalate dị ka akụrụngwa a na-akpọ ferrous oxalate usoro (ma ọ bụ nanị ferrous usoro). Ugbu a, usoro oxalate ferrous bụ usoro na usoro a na-ejikarị eme ihe na China, ihe karịrị ọkara nke ndị na-emepụta ụlọ na-eji ya. Uru ya bụ isi bụ ọnụ ahịa akụrụngwa dị ala, usoro dị mfe, yana njikwa dị mfe nke oke akụrụngwa.
Nkwadebe nke lithium iron phosphate ihe site na mbelata carbothermal
▲ Synthesis ụkpụrụ
▲ Isi ihe sịntetịt
▲ Usoro nhazi
▲ Ịrụ ọrụ nke sịntetik ihe
N'ime ndị na-emepụta ihe na-emepụta lithium iron phosphate (LiFePO4), usoro mbelata carbothermal bụ teknụzụ nke abụọ a na-ejikarị eme ihe mgbe usoro oxalate ferrous. Isi akụrụngwa ya bụ ferric iron (Fe2PO4), gụnyere iron phosphate (Fe2PO4) na iron oxide (Fe2O3). N'oge mmeghachi omume ahụ, carbon (C) na carbon monoxide (C2O3) na-ebelata ígwè ferric (Fe2PO4) ka ọ bụrụ ígwè ferrous (Fe2+), nke na-abanye na lattice kristal, na-akpụ nhazi kristal nke lithium iron phosphate (LiFePO4).
Uru nke usoro mbelata carbothermal bụ na oxidation nke akụrụngwa adịghị mkpa ka a tụlee n'oge nhazi; Enwere ike iji ụzọ ngwakọta dị iche iche iji hazie akụrụngwa iji nweta ọnọdụ mgbasa ozi achọrọ. Naanị n'oge okpomọkụ dị elu ka carbon na-ebelata ferric ígwè ka ọ bụrụ ígwè ferrous, na-akpụ lithium iron phosphate, ya mere a na-akpọ usoro mbelata carbothermal. Ụzọ mbelata carbothermal na-enweta otu - mbelata nzọụkwụ, na-ebelata mmepụta gas, ma bara uru maka ịkwalite mkpụrụ. N'otu oge ahụ, usoro njikọ ahụ dị mfe ma dị mfe ịchịkwa, na-eduga n'ọtụtụ ụlọ ọrụ na-eme ka usoro mbelata carbothermal.
Hydrothermal nkwadebe nke lithium iron phosphate ihe
▲ Synthesis ụkpụrụ
▲ Isi ihe sịntetịt
▲ Usoro nhazi
▲ Ịrụ ọrụ nke sịntetik ihe
Usoro hydrothermal bụ usoro dịtụ elu maka ịkwadebe ihe lithium iron phosphate cathode. Usoro ya bụ isi na-eji sistemu hydrothermal dị elu, na-agbaze ferrous sulfate, lithium hydroxide, na phosphoric acid n'ime mmiri, na-ekpocha ngwọta ahụ ruo ihe karịrị 100 degrees na gburugburu ebe a na-emechi emechi iji mee ka ọ dị elu{2}okpomọkụ, elu{3}} nrụgide mmiri ngwọta. Mmeghachi omume na-aga n'ihu site na mgbasa ozi ion, na-emepụta irighiri kristal phosphate iron lithium. A na-enyochakwa ihe phosphate dị ọcha nke lithium iron phosphate, akpọchie, na carbon- ka ọ bụrụ ngwakọta nke lithium iron phosphate/carbon composite.
Uzo nyocha na nyocha ihe eji eme ihe maka ihe lithium iron phosphate
▲ Nyocha ihe mejupụtara kemịkalụ na ụzọ nnwale maka akụrụngwa phosphate iron lithium
▲ Ụzọ nyocha ihe onwunwe maka ihe lithium iron phosphate
▲Ụzọ nnwale arụmọrụ elektrọn maka ihe lithium iron phosphate
▲Ntụle Ngwa Bara Uru nke Lithium Iron Phosphate Materials
Maka ihe lithium iron phosphate (LFP), nnwale bụ teknụzụ bụ isi, ọ dị mkpa karịa njikwa usoro njikọ. Enweghị data nnwale ziri ezi na nke ziri ezi, enweghị ike ịnweta ọnọdụ usoro kwụsiri ike, yabụ, enweghị ike imepụta ngwaahịa LFP tozuru oke na-emezu ihe achọrọ. Nnwale siri ike nke ihe dị mkpa n'oge usoro mmepụta ihe niile, site na ịzụrụ akụrụngwa na njikọta ruo nleba anya ngwaahịa emechara. Ya mere, ngalaba ọ bụla na-eme nyocha na imepụta LFP ga-etinyerịrị ike na iwu nke usoro nnwale ya. Iji ngwa nnwale ọkaibe, ụzọ nnwale siri ike, yana ndị ọrụ nnwale a zụrụ nke ọma bụ ọnọdụ dị mkpa maka ụlọ ọrụ iji kwado ọnọdụ ya na ụlọ ọrụ.
Nyocha nke njirimara njirimara ndị ọzọ nke ihe lithium iron phosphate
▲Electrochemical arụmọrụ analysis nke lithium iron phosphate ihe
▲Electron microscopic morphology analysis nke lithium iron phosphate ihe
▲ Ike elu nke ihe phosphate iron lithium
▲ Ntụle nke iron solubility na lithium iron phosphate ihe
▲Spectroscopic Njirimara nke lithium iron phosphate ihe
N'ime ngwa bara uru nke lithium iron phosphate ngwa, na mgbakwunye na ule arụmọrụ oge niile, ọ dịkwa mkpa ịlele ụfọdụ njirimara akọwapụtara iji nye ntụaka maka nyocha arụmọrụ ihe na usoro nrụpụta batrị. Site na ọganihu nke teknụzụ, ụfọdụ parampat enwere ike iji naanị mkpụrụ ndụ zuru ezu tụọ ya ugbu a site na iji ụzọ dị mfe. Dịka ọmụmaatụ, arụmọrụ okirikiri nke ihe lithium iron phosphate, ọkachasị arụmọrụ okirikiri carbon, enwere ike nyochaa ugbu a site na iji mkpụrụ ndụ mkpụrụ ego emebere nke ọma, na-eme ka usoro nha dị mfe.
Teknụzụ nrụpụta batrị na-eji lithium iron phosphate ihe
▲Lithium ígwè phosphate batrị usoro imewe nkọwa
▲ Lithium ígwè phosphate ihe onwunwe slurry nkwadebe teknụzụ
▲Mkpuchi nke lithium iron phosphate slurry
▲ Mpịakọta nke lithium iron phosphate electrodes
▲ Mgbanwe na Nkewa
▲ Ihe atụ ndị ọzọ nke nrụpụta batrị
Maka batrị lithium{0} ion ọ bụla, nhazi mbụ bụ isi ọrụ. Ọrụ imewe gụnyere ịchọpụta usoro nrụpụta nke batrị lithium{2}}. Ebe ọ bụ na a na-ekpebi ịrụ ọrụ batrị site na electrodes, imewe electrode bụ akụkụ bụ isi nke usoro nrụpụta batrị. Nke a bụkwa eziokwu maka batrị phosphate iron lithium.
Ebe isi ngwa nke lithium iron phosphate batrị
▲ Ngwa nke batrị lithium iron phosphate na ngwaọrụ njem eletrik
▲ Ngwa nke batrị lithium iron phosphate dị na ike nchekwa ike
▲ Ngwa nke batrị lithium iron phosphate na ngwa ike
▲ Ngwa nke lithium iron phosphate batrị
Lithium iron phosphate (LFP) bụ ihe cathode maka batrị lithium{0}}, uru kachasị ya bụ nchekwa ya dị elu. Ọ nwekwara uru na lithium manganese oxide na nickel{2}}manganese{3}}cobalt ternary akụrụngwa enweghị, dị ka ogologo okirikiri ndụ, ọnụ ihe onwunwe dị ala, na nnukwu akụrụngwa akụrụngwa. Batrị LFP nwere voltaji kwụsiri ike, voltaji arụ ọrụ na-agafeghị oke, ezigbo ndakọrịta na sistemu electrolyte, anaghị egbu egbu, enweghị mmetụta ebe nchekwa, anaghị emetọkwa gburugburu. Ike ha pụrụ iche nwere ike iru 100–130 Wh/kg, nke bụ 0.3–5 ugboro karịa nke batrị acid na ugboro 1.5 nke nickel{13}} batrị hydride metal. N'inye ọtụtụ uru ya, a na-ewere ya dị ka batrị dị mma maka ụgbọ ala eletrik, nchekwa ikuku na anyanwụ, yana batrị nchekwa nchekwa maka iji ụlọ.
Outlook maka ihe ndị ọzọ Cathode maka batrị lithium{0}}
▲ Lithium vanadium phosphate cathode ihe -
▲ Lithium manganese phosphate cathode ihe onwunwe
▲ Lithium iron silicate cathode ihe onwunwe
▲ Lithium iron borate cathode ihe onwunwe
▲Lithium{0}} ihe cathode nwere akwa akwa
Mwepụta nke lithium iron phosphate (LFP) ihe tọrọ ntọala sayensị ihe onwunwe maka ngwa zuru ebe niile nke nnukwu {{0}scale lithium - batrị ion.
Dị ka a maara nke ọma, nchekwa nke batrị lithium{0}ion abụrụla ihe bụ isi na ihe dị mkpa na-egbochi mmepe ụlọ ọrụ ahụ. Ọbụlagodi na mba ndị mepere emepe nwere akụrụngwa akụrụngwa kwụsiri ike yana akụrụngwa nhazi ọkaibe, nchekwa nke batrị lithium{2}ion enweghị ike ịkwenye nke ọma. N'ịnyere nhazi batrị lithium{4} ion dị ugbu a dị obere na obodo m, LFP dabara nke ọma- dabara na ọnọdụ obodo nke obodo m, na-eme ka nchekwa batrị dị oke mma.