Ka tokiso e tsoelang pele ea sebopeho sa matla a lefats'e le nts'etsopele e potlakileng ea matla a tsosolositsoeng,polokelo ea matlathekenoloji butle-butle e fetoha tšehetso ea bohlokoa bakeng sa phetoho ea matla le ho khanna tsoelo-pele ea moruo ea kamoso.
Kenyelletso ea Theknoloji ea Battery ea ho boloka Matla
▲Phetoho ea matla, polokelo le tšebeliso
▲Tlhophiso le Tšebeliso ea Litheknoloji tsa Polokelo ea Matla
▲Kakaretso ea Libetri tsa polokelo ea Matla
▲Molao-motheo o sebetsang le sebopeho sa libeteri tsa polokelo ea matla
▲Lipontšo tsa ts'ebetso le mantsoe a amanang le libeteri tsa polokelo ea matla
Matla ke matla a mantlha a tsamaisang lefatše le mohloli oa mantlha oo mokhatlo oa batho o itšetlehileng ka oona bakeng sa nts'etsopele. Ho tloha ts'ebelisong ea pele ea mollo ho isa ho motlakase oa kajeno, nts'etsopele le ts'ebeliso ea matla e khothalelitse tsoelopele ea tsoelopele le ho theha sebopeho sa rona sa sechaba sa hajoale.
Ka kholo e tsoelang pele ea tlhokahalo ea matla lefatšeng ka bophara le nts'etsopele e potlakileng ea matla a ka nchafatsoang, theknoloji ea betri ea polokelo ea matla e hlahile 'me e fetohile tšiea ea bohlokoa ea lekala la eneji. Libetri tsa polokelo ea matla li ka boloka ka nepo mehloli ea matla ea nakoana joalo ka moea le matla a letsatsi le ho li lokolla nakong ea tlhokeho e phahameng, ho netefatsa botsitso ba phepelo ea motlakase. Theknoloji ena ha e fokotse feela ho itšetleha ka libeso tsa khale empa e boetse e fana ka tiisetso ea bohlokoa bakeng sa ho fumana -khabone le lisebelisoa tse tšoarellang tsa matla.
Ntlafatso ea theknoloji ea polokelo ea matla, ho tloha ho libeteri tsa khale tsa lead-asiti ho ea ho libeteri tsa sejoale-joale tsa lithium-ho isa ho libeteri tse ntseng li tsoela pele tse tiileng-le libeteri tsa sodium-e ntse e tsoela pele ho phunyeletsa mathata a theknoloji. Ka ho ntlafatsa bongata ba matla, ho lelefatsa nako ea bophelo, le ho ntlafatsa polokeho, libeteri tsa polokelo ea matla li bontšitse tebello e batsi ea ts'ebeliso libakeng tse kang polokelo ea motlakase ea lapeng, lipalangoang le taolo ea marang-rang. Ho ka boleloa hore theknoloji ea betri ea polokelo ea matla ha se senotlolo sa phetoho ea sebopeho sa matla a hona joale empa hape ke motheo oa li-grids tse bohlale tsa nakong e tlang le lits'ebetso tsa matla tse ajoang.
Theknoloji ea polokelo ea matla ea betri{{0}e thehiloeng ho lithium
▲Sebopeho le molao-motheo oa tšebetso oa libeteri tsa lithium{0}}ion
▲Lithium{0}}ion betri cathode lisebelisoa
▲Lisebelisoa tsa anode ea betri ea lithium-ion
▲Lithium{0}}electrolyte ea betri ea ion
▲Moralo le ho etsa libeteri tsa lithium-ion
Ka 1970, MS Whittingham oa ExxonMobil o ile a theha betri ea pele ea lithium{3}}ion. O sebelisitse titanium disulfide le metallic lithium e le li-electrode tse ntle le tse mpe, ka ho latellana. Nakong ea ho tjhaja le ho ntša, lithium ea tšepe e lula e jeoa le ho hlahisoa ka electrode e mpe, ha titanium disulfide e ntse e kenya le ho ntša li-ion tsa lithium ho electrode e ntle. Mekhoa ena e 'meli e ka khutlisetsoa morao nakong eohle ea bophelo ba betri, kahoo ho etsa betri ea lithium{7}}ion ea bobeli e nang le voltage ea 2V. Ka 1982, RR Agarwal le JR Selman ba Illinois Institute of Technology ba ile ba fumana hore lithium ion li na le monyetla oa ho kena-kenana le graphite, e leng tšebetso e potlakileng le e ka khutlisoang morao... ntshetsopele, le tlhaboloho. Ka ts'ebetso ea bona e ntlafetseng le e bonolo, ba ntse ba kenella likarolong tse fapaneng, ho tloha ho lihlahisoa tsa 3C tse kang lithelefono tsa cellular le li-tablet ho ea ho matla a motlakase a kang likoloi tsa motlakase le libaka tse kholo tsa - tsa polokelo ea matla joaloka photovoltaics le matla a moea, tse amang bophelo ba sechaba haholo.
Betri ke eng?
▲Nalane ea ntlafatso ea betri
▲Selelekela ho Libetri tsa Lithium-ion
▲Likarolo tsa libeteri tsa lithium{0}}ion
▲Lisebelisoa tsa bohlokoa libeteri tsa lithium{0}}ion
Betri ke mofuta oa mohloli oa matla. Mehloli ea matla ka kakaretso e arotsoe ka mehloli ea matla a 'mele le mehloli ea matla a lik'hemik'hale. Mehloli ea matla ea 'mele e kenyelletsa lisebelisoa tsa ho fehla matla a letsatsi, lisebelisoa tsa ho fehla matla a thermoelectric, lijenereithara tse fehlang mocheso le metsi, joalo-joalo; ha mehloli ea matla a lik'hemik'hale e bua ka lisebelisoa tse fehlang matla tse ka fetolang matla a lik'hemik'hale ka ho toba matla a motlakase, ke hore, libeteri tsa lik'hemik'hale ka kakaretso, kapa libeteri feela.
Sisteme ea libeteri e bile teng melokong e mene: libeteri tsa lead-asiti, nickel-libetri tsa cadmium, libeteri tsa nickel-metal hydride, le libeteri tsa lithium{3}}ion. Ts'ebetso ea betri e ntse e ntlafala khafetsa, 'me kutloisiso ea batho ea lisebelisoa tsa betri e tebile. Hajoale, libeteri tsa lithium-ke tsona tse sebetsang hantle ka ho fetisisa le tse sebetsang{7}}tse sebetsang hantle ka ho fetesisa tsa betri, tse emelang boemo bo holimo ba lipatlisiso le theknoloji ea batho.
Nalane ea Lipatlisiso le Nts'etsopele ea Lisebelisoa tsa Lithium Iron Phosphate
▲ Nalane ea nts'etsopele ea lisebelisoa tsa lithium iron phosphate
▲ Boemo ba patent ea lithium iron phosphate
▲ Lithuto tsa sebopeho le ts'ebetso ea lisebelisoa tsa lithium iron phosphate
Lithium iron phosphate (LiFeP, LFP, eo hape e tsejoang e le lithium iron phosphate kapa lithium iron phosphate) ke ntho ea cathode e sebelisoang libeteri tsa lithium{0}}ion. E tšoauoa ka ho ba sieo ha lintho tsa bohlokoa tse kang cobalt le nickel, theko e tlaase ea thepa e tala, le bongata ba phosphorus, lithium le lisebelisoa tsa tšepe karolong ea Lefatše, tse ka finyellang tlhokahalo ea 'maraka e fetang lithane tse milione ka selemo. Joaloka lisebelisoa tsa cathode, lithium iron phosphate e na le matla a itekanetseng a ho sebetsa (3.2V), matla a khethehileng a phahameng (170mA · h / g), matla a phahameng a ho ntša matla, bokhoni ba ho tjhaja ka potlako, bophelo ba nako e telele, le botsitso bo botle tlas'a mocheso o phahameng le mocheso o phahameng oa mocheso.
Lisebelisoa tsa tlhahiso tse sebelisoang ha ho etsoa thepa ea lithium iron phosphate
▲ Litlhoko tsa Lisebelisoa tsa Tlhahiso:; Thepa e Kopanyang; Thepa ea ho Omisa; Thepa ea Sintering,; Thepa e Hlōla; Lisebelisoa tsa ho hlahloba; Jenereithara ea naetrojene; Thepa ea ho paka.
Ha lisebelisuoa tsa cathode tsa lithium iron phosphate (LFP) li sebelisoa ho etsa lithium-libetri tsa ion, litlhokahalo tsa bohloeki ba tsona, mohato le litšila li thata haholo. Ka mohlala, ha tekanyo ea oxidation ea tšepe ea divalent LFP e fihla ho 1%, matla a khethehileng a ka fokotseha ka ho feta 30%. Lebaka ke hobane tšepe e sa tsoa hlahisoa e nang le li-trivalent e koahela holim'a LFP, e etsa lera le sebetsang le thibelang liketso tse ling tsa ka hare. Haeba LFP e se e entsoe ka oxidized, mekhoa e latelang ea ho fokotsa e ke ke ea fana ka LFP hobane li-ion tsa lithium lihlahisoa tse tala li se li lahlehile.
Ho lokisoa ha lisebelisoa tsa lithium iron phosphate ka mokhoa oa ferrous oxalate
▲Molao-motheo oa ho kopanya
▲ Lisebelisoa tse ka sehloohong tsa maiketsetso
▲ Mokhoa oa ho kopanya
▲Ts'ebetso ea lisebelisoa tsa maiketsetso
Mokhoa oa ho kopanya lithium iron phosphate o sebelisa ferrous oxalate e le thepa e tala e bitsoa mokhoa oa ferrous oxalate (kapa mokhoa oa ferrous feela). Hona joale, mokhoa oa ferrous oxalate ke mokhoa o sebelisoang ka ho fetisisa le mokhoa o sebelisoang haholo Chaena, o nang le ba fetang halofo ea bahlahisi ba malapeng ba o sebelisang. Melemo ea eona e kholo ke litšenyehelo tse tlase tsa thepa e tala, ts'ebetso e bonolo, le taolo e bonolo ea likarohano tsa metsoako.
Ho lokisoa ha lisebelisoa tsa lithium iron phosphate ka ho fokotsa carbothermal
▲Molao-motheo oa ho kopanya
▲ Lisebelisoa tse ka sehloohong tsa maiketsetso
▲ Mokhoa oa ho kopanya
▲Ts'ebetso ea lisebelisoa tsa maiketsetso
Har'a bahlahisi ba hlahisang lisebelisoa tsa lithium iron phosphate (LiFePO4), mokhoa oa ho fokotsa carbothermal hona joale ke theknoloji ea bobeli e sebelisoang ka ho fetisisa ka mor'a mokhoa oa ferrous oxalate. Lintho tsa eona tse ka sehloohong tse tala ke tšepe ea ferric (Fe2PO4), ho akarelletsa le iron phosphate (Fe2PO4) le iron oxide (Fe2O3). Nakong ea karabelo, carbon (C) le carbon monoxide (C2O3) li fokotsa tšepe ea ferric (Fe2PO4) ho ea ho tšepe ea ferrous (Fe{13}}), e ntan'o kena ka har'a kristale lattice, ho etsa sebopeho sa kristale sa lithium iron phosphate (LiFePO4).
Molemo oa mokhoa oa ho fokotsa carbothermal ke hore oxidation ea lihlahisoa tse tala ha e hloke ho nkoa nakong ea ts'ebetso; mekhoa e fapaneng ea ho kopanya e ka sebelisoa ho sebetsana le lisebelisoa tse tala ho fihlela boemo bo lakatsehang ba ho hasana. Ke feela sethaleng se phahameng sa mocheso moo carbon e fokotsang tšepe ea ferric ho tšepe ea ferrous, ho etsa lithium iron phosphate, ka hona ho bitsoa mokhoa oa ho fokotsa carbothermal. Mokhoa oa ho fokotsa mocheso oa khabomo mocheso o finyella mohato o le mong- oa phokotso, o fokotsa tlhahiso ea khase, 'me o molemo bakeng sa ho ntlafatsa chai. Ka nako e ts'oanang, mokhoa oa ho kopanya o bonolo ebile o bonolo ho o laola, o lebisa ho palo e ntseng e eketseha ea lik'hamphani tse amohelang mokhoa oa ho fokotsa carbothermal.
Ho lokisoa ha hydrothermal ea lisebelisoa tsa lithium iron phosphate
▲Molao-motheo oa ho kopanya
▲ Lisebelisoa tse ka sehloohong tsa maiketsetso
▲ Mokhoa oa ho kopanya
▲Ts'ebetso ea lisebelisoa tsa maiketsetso
Mokhoa oa hydrothermal ke mokhoa o batlang o tsoetse pele oa ho lokisa lisebelisoa tsa lithium iron phosphate cathode. Ts'ebetso ea eona e kholo e sebelisa supercritical hydrothermal system, ho qhala ferrous sulfate, lithium hydroxide, le phosphoric acid ka metsing, ho futhumatsa tharollo ho feta 100℃sebakeng se tiisitsoeng ho theha{2}}mocheso o phahameng,{3}}mokelikeli o phahameng oa khatello. Karabelo e tsoela pele ka phallo ea ion, e hlahisa likaroloana tsa kristale tsa lithium iron phosphate. Thepa e hloekileng ea lithium iron phosphate e ntan'o tlhotloa, e omisoe, ebe e behoa{6}}khabone ho etsa motsoako oa lithium iron phosphate/carbon composite.
Mekhoa e tloaelehileng ea tlhahlobo le tlhahlobo ea lisebelisoa tsa lithium iron phosphate
▲ Tlhahlobo ea sebopeho sa lik'hemik'hale le mekhoa ea tlhahlobo ea lisebelisoa tsa lithium iron phosphate
▲ Mekhoa ea ho hlahloba thepa ea 'mele bakeng sa lisebelisoa tsa lithium iron phosphate
▲ Mekhoa ea tlhahlobo ea ts'ebetso ea electrochemical bakeng sa lisebelisoa tsa lithium iron phosphate
▲ Tlhahlobo ea Lisebelisoa tse Sebetsang tsa Lithium Iron Phosphate Materials
Bakeng sa lisebelisoa tsa lithium iron phosphate (LFP), tlhahlobo ke theknoloji ea mantlha, e bohlokoa ho feta taolo ea ts'ebetso ea synthesis. Ntle le data e nepahetseng le e nepahetseng ea tlhahlobo, maemo a tsitsitseng a ts'ebetso a ke ke a fumanoa, ka hona, lihlahisoa tse tšoanelehang tsa LFP tse fihlelang litlhoko tsa ts'ebeliso li ke ke tsa hlahisoa. Teko e matla ea thepa e bohlokoa ts'ebetsong eohle ea tlhahiso, ho tloha ho theko ea thepa e tala le synthesis ho isa tlhahlobong ea sehlahisoa se felileng. Ka hona, yuniti efe kapa efe e etsang lipatlisiso le ho hlahisa LFP e tlameha ho totobatsa haholo kaho ea sistimi ea eona ea tlhahlobo. Ho sebelisa lisebelisoa tsa tlhahlobo tse tsoetseng pele, mekhoa e matla ea ho etsa liteko, le{4}}basebetsi ba tlhahlobo ba koetlisitsoeng hantle ke maemo a bohlokoa hore khamphani e boloke boemo ba eona indastering.
Tlhahlobo ea litšobotsi tse ling tsa lisebelisoa tsa lithium iron phosphate
▲ Tlhahlobo ea ts'ebetso ea electrochemical ea lisebelisoa tsa lithium iron phosphate
▲Tlhahlobo ea elektrone microscopic morphology ea lisebelisoa tsa lithium iron phosphate
▲ Matla a holim'a thepa ea lithium iron phosphate
▲ Tekanyo ea ho qhibiliha ha tšepe ka thepa ea lithium iron phosphate
▲ Litšobotsi tsa spectroscopic tsa lisebelisoa tsa lithium iron phosphate
Ts'ebelisong e sebetsang ea lisebelisoa tsa lithium iron phosphate, ntle le liteko tse tloaelehileng tsa ts'ebetso, ho boetse hoa hlokahala ho lekanya thepa e itseng ho fana ka litšupiso bakeng sa tlhahlobo ea ts'ebetso ea thepa le lits'ebetso tsa tlhahiso ea betri. Ka tsoelo-pele ea theknoloji, likarolo tse ling tseo pele li neng li ka lekanyetsoa ka lisele tse feletseng joale li ka khethoa ka mekhoa e bonolo. Ka mohlala, ts'ebetso ea potoloho ea lisebelisoa tsa lithium iron phosphate, haholo-holo ts'ebetso ea potoloho ea carbon, joale e ka hlahlojoa ho sebelisoa lisele tsa tšepe tse entsoeng ka mokhoa o khethehileng, ho nolofatsa mokhoa oa ho lekanya haholo.
Theknoloji ea ho etsa betri e sebelisa lisebelisoa tsa lithium iron phosphate
▲ Litlhaloso tsa moralo oa betri ea lithium iron phosphate
▲ Theknoloji ea ho lokisa slurry ea lithium iron phosphate
▲ Ho roala ha lithium iron phosphate slurry
▲ Ho phalla ha li-electrode tsa lithium iron phosphate
▲ Phetoho le Karohano
▲Mehlala e meng ea tlhahiso ea betri
Bakeng sa betri efe kapa efe ea lithium{0}}ion, moralo oa mantlha ke ona oa mantlha. Mosebetsi oa ho rala o kenyelletsa ho tseba mokhoa oa ho etsa betri ea lithium{2}}ion. Kaha ts'ebetso ea betri e khethoa haholo ke li-electrode, moralo oa elektrode ke karolo ea mantlha ea ts'ebetso ea ho etsa betri. Sena ke 'nete hape bakeng sa libeteri tsa lithium iron phosphate.
Libaka tse ka sehloohong tsa ts'ebeliso ea libeteri tsa lithium iron phosphate
▲ Litšebeliso tsa libeteri tsa lithium iron phosphate lisebelisoa tsa lipalangoang tsa motlakase
▲ Litšebeliso tsa libeteri tsa lithium iron phosphate phepelong ea matla a polokelo ea matla
▲ Litšebeliso tsa libeteri tsa lithium iron phosphate lisebelisoa tsa matla
▲ Lisebelisoa tsa libeteri tsa lithium iron phosphate
Lithium iron phosphate (LFP) ke thepa ea cathode bakeng sa libeteri tsa lithium-ion, 'me molemo oa eona o moholo ke polokeho ea eona e phahameng. E boetse e na le melemo ea hore lithium manganese oxide le nickel-manganese-cobalt ternary e haella, joalo ka bophelo ba nako e telele, theko e tlase, le mehloli e mengata e tala. Libetri tsa LFP li na le motlakase o tsitsitseng, motlakase o itekanetseng o sebetsang, li sebelisana hantle le lisebelisoa tsa electrolyte, ha li-li chefo, ha li na mohopolo, 'me ha li silafatse tikoloho. Matla a tsona a ikhethileng a ka fihla ho 100–130 Wh/kg, e leng makhetlo a 0.3–5 a libeteri tsa loto{11}} le makhetlo a 1.5 a libeteri tsa nickel{13}} tsa metal hydride. Ka lebaka la melemo ea eona e mengata, e nkuoa e le betri e loketseng likoloi tsa motlakase, polokelo ea matla a moea le a letsatsi, le libeteri tse bolokehileng tsa tšebeliso ea lapeng.
Outlook for Other Cathode Materials for Lithium-ion Batteries
▲ Lintho tse bonahalang tsa lithium vanadium phosphate cathode -
▲ Lintho tse bonahalang tsa lithium manganese phosphate cathode
▲Lithium iron silicate cathode lintho tse bonahalang
▲Lithium iron borate cathode lintho tse bonahalang
▲Lithium-lisebelisoa tsa cathode tse nang le lera le ruileng
Ho hlaha ha lisebelisuoa tsa lithium iron phosphate (LFP) ho ralile motheo oa saense bakeng sa ts'ebeliso e atileng ea-libetri tsa lithium{1}} tse kholo tsa ion.
Joalo ka ha ho tsebahala, polokeho ea libeteri tsa lithium-esale e le taba ea mantlha le ea bohlokoa e thibelang nts'etsopele ea indasteri. Esita le linaheng tse tsoetseng pele tse nang le thepa e tsitsitseng le lisebelisoa tsa ho sebetsa tsa maemo a holimo, polokeho ea libeteri tsa lithium{2}} e ke ke ea tiisetsoa ka botlalo. Ka lebaka la boemo ba hajoale ba lithium{4}}ea tšebetso ea betri ea ion naheng ea heso, LFP e -lokela maemo a naha ea heso hantle, 'me e ntlafatsa polokeho ea libeteri haholo.