Li-anode tsa silicon-carbon li qala phephetso e felletseng ho li-anode tsa graphite (ho kenyeletsoa le coke ea petroleum e nang le graphitized) ka tsoelo-pele ea theknoloji le phokotso ea litšenyehelo. Leha ho le joalo, "terone" ea li-anode tsa graphite e lula e tsitsitse ka nako e khuts'oane, ha e ntse e tobane le kotsi ea ho nkeloa sebaka ka nako e telele. Tlhahlobo e latelang e etsoa ho tloha likarolong tse tharo: theknoloji, litšenyehelo le ts'ebeliso ea 'maraka.
I. Tekanyo ea Theknoloji: "Tlhōlo ea Ts'ebetso" ea Li-Anode tsa Silicon-Carbon khahlanong le "Bottleneck e Fokotsang" ea Li-Anode tsa Graphite
Melemo ea Katleho ea Li-Anode tsa Silicon-Carbon
- Taolo ea Botebo ba Matla: Bokhoni bo itseng ba khopolo-taba ba silicon (4200mAh/g) bo feta makhetlo a leshome ho feta ba graphite (372mAh/g). Li-anode tsa silicon-carbon tse lokisitsoeng ka CVD (Chemical Vapor Deposition) li bontša keketseho ea 50% ea bongata ba matla ha li bapisoa le graphite ea setso, ka bophelo ba potoloho bo fetang lipotoloho tse 1000 (mohlala, theknoloji ea skeleton ea carbon ea Shanghai Xiba e fokotsa sekhahla sa ho ruruha ha electrode ho fihlela ho 5%).
- Ho Fokotsa Mathata a Katoloso ea Molumo: Likaroloana tsa silicon tse nyane tse kopantsoeng le masapo a carbon a nang le masoba li theha sebopeho sa "maze e hemang", e thibelang khatello ea katoloso ea silicon ka katleho. Mohlala, betri ea Tesla ea 4680, e sebelisang li-anode tsa silicon-carbon tsa CVD, e fihlella lipotoloho tse fetang 2500 mme e nolofalletsa ho tjhaja ka potlako metsotso e 8.
- Ho Sebetsana ha Ts'ebetso ho Ntlafaditsweng: Li-anode tsa silicon-carbon li ka kopanngoa le li-electrolyte tse tiileng hanyane, e leng se ntlafatsang polokeho le bongata ba matla. Li-anode tsa silicon-carbon tsa Beijing Lier, tse kopantsoeng le li-electrolyte tse tiileng tsa sulfide, li fihlella matla a fetang 500Wh/kg 'me li potoloha bophelo ba lipotoloho tse 2000.
"Phello ea Siling" ea Graphite Anode
- Meeli ea Tshebetso: Bokhoni bo sebetsang bo ikhethang ba li-anode tsa graphite bo batla bo fihlile boholo ba bona ba khopolo-taba (360mAh/g), ka mathata a kang ho se lumellane hantle ha electrolyte le ho fela ha bokhoni ka lebaka la ho thehoa ha filimi ea SEI (Solid Electrolyte Interphase) nakong ea potoloho ea pele ea ho tjhaja/ho ntša.
- Bokhoni bo Lekanyeditsweng ba Phetoho: Le hoja diphetoho tse sebedisang khabone e bonolo, khabone e thata, kapa di-nanotubes tsa khabone di ka etswa, di ke ke tsa feta melemo ya bokgoni ba kgopolo-taba ba thepa e thehilweng ho silicon. Mohlala, khabone e thata, le hoja e fana ka bokgoni bo phahameng bo ikgethang ho feta graphite, ha e na sethala se tsitsitseng sa ho ntsha tjhaja mme e bona ho bola ha bokgoni ka potlako.
II. Tekanyo ea Litšenyehelo: "Moeli oa Phokotso ea Litšenyehelo" oa Li-Anode tsa Silicon-Carbon khahlanong le "Molemo oa Litšenyehelo" oa Li-Anode tsa Graphite
Phokotso ea Litšenyehelo ho Li-Anode tsa Silicon-Carbon
- Boiketlo ba Khase ea Silane: Khase ea Silane (SiH₄), thepa ea mantlha ea tlhaho bakeng sa li-anode tsa silicon-carbon, pele e ne e itšetlehile ka thepa e tsoang kantle ho naha (theko e fihla ho li-yuan tse limilione tse 2/ton). Ho tloha ka 2023, lik'hamphani tse etellang pele li fihletse tlhahiso ea malapeng ka mela ea tlhahiso e iketselitseng, e fokotsang litšenyehelo ho li-yuan tse 750,000/ton. Sena se entse hore theko ea li-anode tsa silicon-carbon e be ho tloha ho li-yuan tse limilione tse 1.5/ton ho ea ho li-yuan tse 750,000/ton, e leng se atamelang litšenyehelo tsa li-anode tsa graphite ka makhetlo a 1.5 (hoo e ka bang li-yuan tse 500,000/ton).
- Ho Kgolofala ha Ditshebetso tsa CVD: Ditheko tsa disebediswa tsa CVD tsa lapeng di theohetse ho karolo ya boraro ya disebediswa tse tswang kantle ho naha, mme bokgoni ba mochini o le mong bo eketseha hararo. Mohlala, bokgoni ba mohala wa tlhahiso ya CVD wa khamphani e etellang pele bo nyolohile ho tloha ho ditone tse 100 ka selemo ho ya ho ditone tse 5000 ka selemo, e leng se fokotsang ditjeo tsa yuniti ka 40%.
- Ho Sebetsa Moruong: Haeba litheko tsa anode ea silicon-carbon li theohela ho makhetlo a 1.5 ho feta tsa graphite, keketseho ea litšenyehelo bakeng sa koloi ea motlakase ea sehlopha sa A00 e nang le betri ea 30kWh e ka ba li-yuan tse ka bang 2000, ha ka nako e ts'oanang e fana ka keketseho ea 15% ea sebaka, e fanang ka katleho e kholo ea litšenyehelo.
"Moalo oa Litšenyehelo" oa Anode tsa Graphite
- Litšenyehelo tse Tlase tsa Thepa e Tala: Lisebelisoa tse tala tsa graphite anode, tse kang petroleum coke le needle coke, li bontša ho feto-fetoha ha theko ho fokolang (mohlala, petroleum coke e nang le graphitized e theko ea 1620-3000 yuan/ton).
- Mekhoa ea Tlhahiso e Butsoitseng: Ts'ebetso ea tlhahiso bakeng sa li-anode tsa graphite (ho sila, ho granulation, ho arola, graphitization ea mocheso o phahameng) e lekantsoe haholo, e nolofalletsang taolo ea litšenyehelo tlas'a tlhahiso ea bongata.
- Melemo ea Litšenyehelo tsa Nako e Khutšoanyane: Litšebelisong tsa polokelo ea matla (tse amang bophelo ba potoloho empa tse sa hlokeng matla haholo) le limmarakeng tsa likoloi tsa motlakase tsa maemo a tlase, li-anode tsa graphite li boloka melemo ea litšenyehelo.
III. Tekanyo ea Tšebeliso ea 'Maraka: "Ho Kena 'Marakeng" ha Li-Anode tsa Silicon-Carbon khahlanong le "'Maraka o Teng" oa Li-Anode tsa Graphite
"Lenane la Kholo e Phahameng" la Li-Anode tsa Silicon-Carbon
- Libetri tsa Matla: Likhamphani tse etellang pele joalo ka CATL le Tesla li qalile tlhahiso e kholo ea libetri tsa anode ea silicon-carbon. Ho lebelletsoe hore tlhoko ea lefats'e ea li-anode tsa silicon-carbon e tla fihla lithane tse 60,000-70,000 ka 2026, e lekanang le boholo ba 'maraka ba li-yuan tse libilione tse 18-21.
- Lisebelisoa tsa Elektroniki tsa Bareki: Li-anode tsa silicon-carbon li keneletse ho feta 25% ea li-smartphone tsa maemo a holimo (mohlala, Honor Magic5 Pro), li eketsa bokhoni ba betri ka 15% ha li ntse li eketsa botenya ba 0.1mm feela.
- Libetri tsa Boemo bo Tiileng: Li-anode tsa silicon-carbon, tse kopantsoeng le li-electrolyte tse tiileng, li emela tataiso ea theknoloji ea nako e telele. Mohlala, li-anode tsa silicon-carbon tsa Beijing Lier, tse kopantsoeng le li-electrolyte tse tiileng tsa sulfide, li fihlella matla a fetang 500Wh/kg.
"Tšireletso ea 'Maraka e Teng" ea Li-anode tsa Graphite
- Taolo ea Karolo ea 'Maraka: Li-anode tsa graphite hajoale li etsa karolo e fetang 95% ea 'maraka oa thepa ea anode ea betri ea lithium-ion (ka graphite ea maiketsetso e etsang 80%), e leng se etsang hore ho se khonehe ho nkela sebaka ka botlalo ka nako e khuts'oane.
- Ho Ikamahanya le Maemo a 'Maraka: Polokelong ea matla (mohlala, polokelo e ajoang) le limmarakeng tsa likoloi tsa motlakase tsa maemo a tlase, li-anode tsa graphite li lula li le teng ka lebaka la melemo ea litšenyehelo le bophelo ba potoloho bo fetang lipotoloho tse 6000.
IV. Tebello ea Bokamoso: Li-anode tsa Graphite li ka Boloka "Terone ea Tsona" Halelele Hakae?
- Nako e Khutšoanyane (Lilemo tse 1-3): Li-anode tsa graphite li tla lula li le matla, empa li-anode tsa silicon-carbon li tla eketsa ka potlako ho kenella ha libeteri tsa motlakase le lisebelisoa tsa elektroniki tsa bareki ba maemo a holimo.
- Nako e Mahareng (Lilemo tse 3-5): Haeba litšenyehelo tsa anode ea silicon-carbon li tsamaisana le anode ea graphite (e lebelletsoeng ka 2026), bongata ba matla a tsona le melemo ea ho tjhaja ka potlako li tla etsa hore ho be le sebaka se seholo polokelong ea matla le mebarakeng ea likoloi tsa motlakase tsa maemo a tlase.
- Nako e Telele (Lilemo tse 5+): Li-anode tsa silicon-carbon, tse kopantsoeng le li-electrolyte tse tiileng, li ka fetoha motheo oa theknoloji ea betri ea moloko o latelang, e leng se ka 'nang sa liha puso ea li-anode tsa graphite.
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Nako ea poso: Tshitwe-22-2025