Ma silicon-carbon anode ari kutanga dambudziko guru kuma graphite anode (kusanganisira graphitized petroleum coke) nekubudirira kwetekinoroji uye kudzikiswa kwemitengo. Zvisinei, "chigaro" chema graphite anode chinoramba chakagadzikana munguva pfupi, ukuwo chichitarisana nenjodzi yekutsiviwa nekufamba kwenguva. Ongororo inotevera inoitwa kubva pazvikamu zvitatu: tekinoroji, mutengo, uye kushandiswa kwemusika.
I. Kukura Kwetekinoroji: "Kusvetuka Kwekushanda" kweSilicon-Carbon Anodes vs. "Kudzikamisa Bottleneck" yeGraphite Anodes
Mabhenefiti eSilicon-Carbon Anodes
- Simba Rinotonga Kuwanda Kwesimba: Kugona kwesilicon (4200mAh/g) kwakapfuura kagumi kupfuura graphite (372mAh/g). Ma silicon-carbon anode akagadzirwa kuburikidza neCVD (Chemical Vapor Deposition) anoratidza kuwedzera kwesimba ne50% zvichienzaniswa negraphite yechinyakare, nehupenyu hwema cycle hunopfuura 1000 cycles (semuenzaniso, tekinoroji yeShanghai Xiba ye mesoporous carbon skeleton inoderedza mwero wekuzvimba kweelectrode kusvika 5%).
- Kuderedza Matambudziko Ekuwedzera Vhoriyamu: Zvidimbu zvesilicon zvenanoscale pamwe chete nemaskeleton ekabhoni ane porous zvinoumba chimiro che "breathing maze", zvichidzivirira kushushikana kwekuwedzera kwesilicon. Semuenzaniso, bhatiri reTesla re4680, richishandisa CVD silicon-carbon anodes, rinosvika pakutenderera kunopfuura 2500 uye rinogonesa kuchaja nekukurumidza kwemaminitsi masere.
- Kuenderana Kwakawedzerwa Kwemaitiro: Ma silicon-carbon anode anogona kubatanidzwa nema electrolyte akasimba zvishoma, zvichiwedzera kuvandudza kuchengetedzeka uye huwandu hwesimba. Ma silicon-carbon anode eBeijing Lier, akabatana nema electrolyte akasimba esulfide, anowana huwandu hwesimba hunopfuura 500Wh/kg uye hupenyu hwema cycles e2000.
"Mhedzisiro yeSirin'i" yeGraphite Anodes
- Zvipingamupinyi pakushanda: Kugona kwe graphite anodes kwava kuda kusvika padanho repamusoro rekufungidzira (360mAh/g), nematambudziko akadai sekusaenderana zvakanaka kwema electrolyte uye kupera kwesimba nekuda kwekuumbwa kwefirimu reSEI (Solid Electrolyte Interphase) panguva yekutanga kuchaja/kuburitsa magetsi.
- Kugona Kuganhurirwa Kwekuchinja: Kunyangwe kuchigona kugadziriswa uchishandisa kabhoni yakapfava, kabhoni yakaoma, kana kabhoni nanotubes, hazvigone kudarika zvakanakira zvepfungwa zvekushandisa zvinhu zvakagadzirwa nesilicon. Semuenzaniso, kabhoni yakaoma, nepo ichipa kugona kwakanyanya kupfuura graphite, haina puratifomu yakagadzikana yekuburitsa chaji uye inokurumidza kuora.
II. Kukura Kwemutengo: "Kuderedzwa Kwemutengo" kweSilicon-Carbon Anodes zvichienzaniswa ne "Kubatsira Kwemutengo" kweGraphite Anodes
Kuderedzwa Kwemitengo muSilicon-Carbon Anodes
- Kuzvigutsa neGasi reSilane: Gasi reSilane (SiH₄), chinhu chikuru chekugadzira anode dzesilicon-carbon, chaimboshandiswa kubva kunze kwenyika (mutengo waisvika mamiriyoni maviri eyuan/tani). Kubva muna 2023, makambani makuru akawana zvigadzirwa zvemumba kuburikidza nekugadzira zvinhu zvakazvigadzira, zvichideredza mitengo kusvika pa750,000 yuan/tani. Izvi zvakaita kuti mutengo weanode dzesilicon-carbon kubva pa1.5 miriyoni yuan/tani kusvika pa750,000 yuan/tani, zvichisvika ka1.5 kupfuura mutengo weanode dzegraphite (inenge 500,000 yuan/tani).
- Kukwanisa Kukura Kwemaitiro eCVD: Mitengo yemidziyo yeCVD yemuno yadzikira kusvika pachikamu chimwe muzvitatu chemidziyo inotengeswa kunze kwenyika, uye kugona kwemuchina mumwe chete kwakawedzera katatu. Semuenzaniso, kugona kwekambani inotungamira kugadzira michina yeCVD kwakawedzera kubva pa100 matani pagore kusvika pa5000 matani pagore, zvichideredza mitengo yeyuniti ne40%.
- Kubudirira Kwemari: Kana mitengo yeanode yesilicon-carbon inodzikira kusvika pa1.5 yakapetwa kupfuura yegraphite, kuwedzera kwemutengo wemota yemagetsi yeA00-class ine bhatiri re30kWh kungave kuri mayuan angangoita 2000, ukuwo zvichiwedzera ne15%, zvichipa kushanda zvakanaka kwemutengo.
"Mugero Wemutengo" weGraphite Anodes
- Mutengo Wakaderera wezvinhu zvisina kugadzirwa: Zvinhu zvisina kugadzirwa zveGraphite anode, zvakaita sepetroleum coke neneedle coke, zvinoratidza kusachinja-chinja kwemitengo (semuenzaniso, petroleum coke ine graphitized inotengeswa pa1620-3000 yuan/tani).
- Maitiro Ekugadzira Akakura: Maitiro ekugadzira ma graphite anodes (kupwanya, granulation, classification, high-temperature graphitization) akanyatsorongeka, zvichiita kuti mutengo udzorwe pasi pekugadzirwa kwakawanda.
- Kubatsira Kwemari Yenguva Pfupi: Mukushandiswa kwekuchengetedza simba (kunobatwa nehupenyu hwema cycle asi kushoma pakuwanda kwesimba) uye mumisika yemotokari dzemagetsi dzemhando yepamusoro, ma graphite anodes anoramba aine mukana wemutengo.
III. Kukura kwekushandiswa kwemusika: "Kupinda kwemusika" kweSilicon-Carbon Anodes zvichienzaniswa ne "Musika uripo" weGraphite Anodes
"Nzira Yekukura Kwakanyanya" yeSilicon-Carbon Anodes
- Mabhatiri Emagetsi: Makambani anotungamira seCATL neTesla ndiwo akatanga kugadzirwa kwemabhatiri e-silicon-carbon anode akawanda. Kudiwa kwepasi rose kwe-silicon-carbon anodes kunotarisirwa kusvika matani 60,000-70,000 panosvika gore ra2026, zvichienderana nehukuru hwemusika hwe18-21 bhiriyoni yeyuan.
- Magetsi Emagetsi Evatengi: Ma silicon-carbon anode akapinda mumafoni emhando yepamusoro anopfuura 25% (semuenzaniso, Honor Magic5 Pro), zvichiwedzera simba rebhatiri ne15% ukuwo zvichiwedzera ukobvu hwe 0.1mm chete.
- Mabhatiri Akasimba: Ma silicon-carbon anode, akabatanidzwa nema electrolyte akasimba, anomiririra divi retekinoroji renguva refu. Semuenzaniso, ma silicon-carbon anode eBeijing Lier, akabatana nema sulfide solid electrolytes, anowana simba rinodarika 500Wh/kg.
"Kudzivirirwa Kwemusika Kuripo" kweGraphite Anodes
- Kutonga Kwemugove Wemusika: MaGraphite anodes parizvino anodarika 95% yemusika wezvinhu zve lithium-ion battery anode (ne graphite yekugadzira ine 80%), zvichiita kuti kutsiva zvachose kusavepo munguva pfupi.
- Kusimba Mumusika WeNiche: Mukuchengetedza simba (semuenzaniso, nzvimbo yekuchengetera yakagoverwa) uye mumisika yemotokari dzemagetsi dzemhando yepamusoro, ma graphite anode anoramba aripo nekuda kwezvakanaka zvemutengo uye hupenyu hwema cycle hunopfuura 6000 cycles.
IV. Maonero Eramangwana: Graphite Anodes Inogona Kuramba Iine "Chigaro Chayo" Kwenguva Ipi?
- Nguva Pfupi (Makore 1-3): Ma-anode eGraphite acharamba aripo, asi ma-anode esilicon-carbon anokurumidza kuwedzera kupinda kwemabhatiri emagetsi uye zvigadzirwa zvemagetsi zvemhando yepamusoro.
- Nguva Yepakati (Makore 3-5): Kana mitengo ye silicon-carbon anode ichiwirirana ne graphite anodes (inotarisirwa kusvika muna 2026), kuwanda kwesimba rayo uye mabhenefiti ayo ekuchaja nekukurumidza zvichatungamira pakutsiva kukuru mukuchengetedza simba uye misika yemotokari dzemagetsi dzemhando yepamusoro.
- Nguva Refu (Makore 5+): Ma silicon-carbon anode, pamwe chete nema electrolyte akasimba, anogona kuva musimboti we tekinoroji yebhatiri yechizvarwa chinotevera, zvichigona kuderedza kutonga kwema graphite anode.
Nguva yekutumira: Zvita-22-2025