Litheko tsa betri ea lithium-ion li eketsehile haholo.Lebaka la ho phahama ha litheko ke lisebelisoa.
Selelekela
Ena ke betri e ka nchafatsoang moo lithium-ion e hlahisang matla.Betri ea lithium-ion e na le li-electrode tse mpe le tse ntle.Ena ke betri e ka nchafatsoang eo ho eona li-ion tsa lithium li tsamaeang ho tloha ho electrode e mpe ho ea ho li-electrode tse ntle ka electrolyte.Phallo e ea pele le morao ha e tjhaja.Lisebelisoa tse ngata li sebelisa lisele tsa lithium-ion (Li-ion), ho kenyeletsoa lisebelisoa, lipapali, li-headphones tsa Bluetooth, lisebelisoa tsa motlakase tse nkehang, lisebelisoa tse nyane le tse kholo, likoloi tsa motlakase le electrochemical.polokelo ea matlalisebelisoa.Li ka beha bophelo bo botle le tikoloho kotsing haeba li sa sebetsoe ka nepo qetellong ea potoloho ea bophelo ba tsona.
Tloaelo
Litlhoko tse ntseng li eketseha tsa 'maraka bakeng sa libeteri tsa Li-ion li ka' na tsa bakoa ke karolo e kholo ea "matla a bona a matla".Bongata ba matla ao tsamaiso e nang le 'ona sebakeng se itseng sa libaka a bitsoa "matla a eona".Ha re ntse re boloka bongata bo lekanang ba motlakase,libeteri tsa lithiume ka ba tšesaane le ho ba bobebe ho feta mefuta e meng ea betri.Ho fokotseha hona ho potlakisitse kamohelo ea bareki ea lisebelisoa tse nyane tse tsamaisoang le tse se nang mohala.
Keketseho ea Theko ea Battery
Litheko tsa thepa ea Lithium-ion li Eketsehile Haholo.
Leha litšenyehelo tsa libeteri li ntse li theoha ho tloha ka 2010, keketseho e kholo ea theko ea tšepe ea bohlokoa ea lisele tse kang lithium e hlahisitse lipelaelo ka bophelo ba bona bo bolelele.Litheko tsa betri tsa EV li tla hola joang nakong e tlang?Theko ealibeteri tsa lithium-ione ka eketseha haholo nakong e tlang e tlang.
Ho eketseha ha Theko ha se Ntho e Ncha.
Ha se lipatlisiso tsa pele tse supang khaello ea lisebelisoa tse tala e le selelekela sa ho eketsa litheko tsa betri.Lingoliloeng tse ling li hlokometse hore nickel ke khaello e ka bang teng, ha se lisele tsohle tse e hlokang.
Leha ho le joalo, ho latela BNEF, matšoenyeho a phepelo ea thepa a bile a phahamisitse litheko tsa thepa e tala bakeng sa theko e tlase.lithium tšepe phosphate(LFP) lik'hemik'hale, tseo hona joale li ratoang ke bahlahisi ba bangata ba baholo ba Machaena le bahlahisi ba betri mme e ntse e amoheloa butle-butle ke Tesla.Ho latela lipatlisiso, baetsi ba lisele tsa China LFP ba ekelitse litheko tsa bona ka 10% ho isa ho 20% ho tloha ka Loetse.
Cell ea Betri ea Lithium-Ion e bitsa bokae?
Ha re theoleng theko ea litšenyehelo tsa betri ea lithium-ion.Ho ea ka lipalo-palo tsa BloombergNEF, theko ea sele e 'ngoe le e 'ngoe ea cathode e nka karolo e fetang halofo ea theko ea sele eo.
| V Battery Cell Component | % ea Theko ea Lisele |
| Cathode | 51% |
| Matlo le lisebelisoa tse ling | 3% |
| Electrolyte | 4% |
| Searohanyi | 7% |
| Tlhahiso le ho theoha ha boleng | 24% |
| Anode | 11% |
Ho tloha karohano e ka holimo ea theko ea betri ea lithium-ion, re fumane hore cathode ke thepa e theko e boima ka ho fetisisa.E nka 51% ea theko eohle.
Cathode e na le electrode e ntle ea tefiso.Ha sesebelisoa se ntša betri, li-electrone le li-ion tsa lithium li tsamaea ho tloha ho anode ho ea ho cathode.Li lula moo ho fihlela betri e tjhaja ka botlalo hape.Li-cathodes ke karolo ea bohlokoa ka ho fetisisa ea libeteri.E ama ka matla mefuta e fapaneng, ts'ebetso hammoho le polokeho ea mocheso oa libeteri.Kahoo, ena hape ke betri ea EV.
Sele e na le litšepe tse fapaneng.Ka mohlala, e na le nickel le lithium.Kajeno, mefuta e tloaelehileng ea cathode ke:
Lisebelisoa tsa betri tse nang le cathode li hlokoa haholo, 'me bahlahisi ba joalo ka Tesla ba ntse ba qhekella ho fumana thepa e le ho eketseha ha thekiso ea EV.Ha e le hantle, thepa e ka har'a cathode, hammoho le tse ling tse likarolong tse ling tsa cellular, li etsa hoo e ka bang 40% ea theko eohle ea sele.
Litheko tsa likarolo tse ling tsa betri ea lithium-ion
Karolo e setseng ea 49 lekholong ea litšenyehelo tsa sele e na le likarolo tse ling ntle le cathode.Ts'ebetso ea tlhahiso, e kenyelletsang ho etsa li-electrode, ho kopanya likarolo tse sa tšoaneng, le ho tlatsa sele, ho etsa karolo ea 24 lekholong ea litšenyehelo tsohle.Anode ke karolo e 'ngoe ea bohlokoa ea libeteri, e ikarabellang bakeng sa 12% ea litšenyehelo tse akaretsang - hoo e batlang e le karolo ea bone ea karolo ea cathode.Anode ea Li-ion cell e na le graphite ea tlhaho kapa ea inorganic, e theko e tlase ho feta lisebelisoa tse ling tsa betri.
Leha ho le joalo, litheko tse ntseng li eketseha tsa thepa e tala li fana ka maikutlo a hore karolelano ea litšenyehelo tsa pakete e ka hola ho fihla ho 5/kWh ka mantsoe a mang ka 2022. Ha ho se na tsoelopele e kantle e ka fokotsang phello ena, nako eo litšenyehelo li theohang ka tlase ho 0/kWh e ka lieha ka 2. lilemo.Sena se ka ba le tšusumetso ho theko e tlaase ea EV le phaello ea moetsi, hammoho le moruo oa lisebelisoa tsa polokelo ea matla.
Matsete a tsoelang pele a R&D, hammoho le kholo ea bokhoni ho pholletsa le marang-rang a kabo, e tla thusa ho ntšetsa pele theknoloji ea betri le ho theola litheko molokong o tlang.BloombergNEF e lebelletse hore lits'ebollo tsa moloko o tlang joalo ka silicon le li-anode tse thehiloeng ho lithium, lik'hemik'hale tse tiileng, le "cathode substance" le mekhoa ea tlhahiso ea lisele li tla bapala karolo e kholo ho thusa ho fokotsa litheko tsena.
Nako ea poso: May-09-2022