Sabata yatsopano ndi batire yatsopano. Tsopano maelekitirodi opangidwa ndi nanoparticles a manganese ndi titaniyamu oxides m'malo mwa cobalt ndi faifi tambala.
Zamkatimu
Asayansi ochokera ku yunivesite ya Yokohama (Japan) asindikiza pepala lofufuzira pa maselo omwe cobalt (Co) ndi faifi tambala (Ni) zasinthidwa ndi oxides wa titaniyamu (Ti) ndi manganese (Mn), pansi mpaka kukula kwa tinthu. ali mu mazana. nanometers. Maselo ayenera kukhala otsika mtengo kupanga ndi kukhala ndi mphamvu yofanana kapena yabwino kuposa maselo amakono a lithiamu-ion.
Kusowa kwa cobalt ndi nickel mu mabatire a lithiamu-ion kumatanthauza kutsika mtengo.
Zamkatimu
- Kusowa kwa cobalt ndi nickel mu mabatire a lithiamu-ion kumatanthauza kutsika mtengo.
- Kodi zatheka bwanji ku Japan?
Maselo a lithiamu-ion amapangidwa pogwiritsa ntchito matekinoloje angapo osiyanasiyana komanso magawo osiyanasiyana azinthu ndi mankhwala omwe amagwiritsidwa ntchito mu cathode. Mitundu yofunika kwambiri ndi:
- NCM kapena NMC - i.e. zochokera nickel-cobalt-manganese cathode; amagwiritsidwa ntchito ndi ambiri opanga magalimoto amagetsi,
- NKA - i.e. zochokera nickel-cobalt-aluminium cathode; Tesla amawagwiritsa ntchito
- LFP - zochokera chitsulo phosphates; BYD amawagwiritsa ntchito, mitundu ina yaku China imawagwiritsa ntchito m'mabasi,
- LCO - zochokera cobalt oxides; sitikudziwa wopanga magalimoto omwe angawagwiritse ntchito, koma amawoneka mumagetsi,
- LMOs - i.e. zochokera manganese oxides.
Kupatukana kumakhala kosavuta ndi kupezeka kwa maulalo omwe amalumikiza matekinoloje (mwachitsanzo, NCMA). Komanso, cathode si chirichonse, palinso electrolyte ndi anode.
> Samsung SDI yokhala ndi batri ya lithiamu-ion: lero graphite, posachedwa silicon, posachedwa lithiamu zitsulo maselo ndi osiyanasiyana 360-420 Km mu BMW i3
Cholinga chachikulu cha kafukufuku wambiri pa maselo a lithiamu-ion ndikuwonjezera mphamvu zawo (kuchuluka kwa mphamvu), chitetezo cha ntchito ndi kuthamanga kwachangu pamene akukulitsa moyo wawo wautumiki. pamene kuchepetsa ndalama... Ndalama zazikulu zomwe zimapulumutsa ndalama zimachokera ku kuchotsa cobalt ndi faifi tambala, zinthu ziwiri zodula kwambiri, kuchokera ku maselo. Cobalt ndizovuta kwambiri chifukwa amakumbidwa makamaka ku Africa, nthawi zambiri amagwiritsa ntchito ana.
Opanga apamwamba kwambiri masiku ano ali ndi manambala amodzi (Tesla: 3 peresenti) kapena ochepera 10 peresenti.
Kodi zatheka bwanji ku Japan?
Ofufuza a Yokohama amanena zimenezo adatha kusinthiratu cobalt ndi faifi tambala ndi titaniyamu ndi manganese. Pofuna kuwonjezera mphamvu ya ma elekitirodi, amaponda ma oxides (mwina manganese ndi titaniyamu) kotero kuti tinthu tating'onoting'ono tokhala ndi nanometer mazana angapo kukula kwake. Kupera ndi njira yomwe imagwiritsidwa ntchito kwambiri chifukwa, kutengera kuchuluka kwa zinthuzo, kumakulitsa gawo lazinthuzo.
Kuphatikiza apo, malo okulirapo, ma nooks ndi ming'alu yambiri pamapangidwewo, mphamvu ya electrode imakulirakulira.
Kutulutsidwa kukuwonetsa kuti asayansi achita bwino kupanga ma cell omwe ali ndi katundu wolonjeza, ndipo tsopano akufunafuna anzawo m'makampani opanga. Gawo lotsatira lidzakhala kuyesa kwakukulu kwa kupirira kwawo, kutsatiridwa ndi kuyesa kupanga misala. Ngati magawo awo akulonjeza, adzafika pamagalimoto amagetsi pasanafike 2025..
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