Sabata yatsopano ndi batire yatsopano: LeydenJar ili ndi ma silicon anode ndi mabatire a 170%. alipo

Kampani yaku Dutch LeydenJar (botolo la Leyden la ku Poland) idadzitamandira popanga anode ya silicon yokonzekera ma cell a lithiamu-ion. Izi zimathandiza kuti mphamvu ya selo ichulukitsidwe ndi 70 peresenti poyerekeza ndi njira zothetsera ma graphite anode.

Silicon m'malo mwa graphite mu anode ndi mwayi wabwino koma chinthu chovuta.

Zamkatimu

• Silicon m'malo mwa graphite mu anode ndi mwayi wabwino koma chinthu chovuta.
  • LeydenJar: Ndipo tidakhazikitsa silicon, ha!
  • Vuto la kulimbikira likadalipo

Silikoni ndi kaboni ndi gulu limodzi la zinthu: zinthu za carbon. Mpweya mu mawonekedwe a graphite amagwiritsidwa ntchito mu anodes a lithiamu-ion maselo, koma njira kwa nthawi yaitali anafuna kuti m'malo ndi otsika mtengo komanso zingamuthandize chinthu - pakachitsulo. Ma atomu a silicon amapanga mawonekedwe omasuka komanso owoneka bwino. Ndipo mawonekedwe a porous kwambiri, kuwonjezereka kwa chiŵerengero cha pamwamba ndi voliyumu, ndi malo ochulukirapo omwe ma lithiamu ion angakhazikitsidwe.

Malo ochulukirapo a ayoni a lithiamu amatanthauza kuchuluka kwa anode. Ndiko kuti, mphamvu ya batri yokulirapo, yomwe imagwiritsa ntchito anode yotere.

Mawerengedwe amalingaliro amawonetsa zimenezo silicon anode imatha kusunga kakhumi (nthawi 10!) ma ion a lithiamu kuposa anode ya graphite... Komabe, izi zimabwera pamtengo wake: pomwe ma graphite anode amakula pang'ono pakulipiritsa, silicon anode yoyimbidwa imatha kutupa mpaka katatu (300 peresenti)!

Zotsatira zake? Zinthuzo zimasweka, ulalowo umataya mphamvu zake. Mwachidule: ikhoza kutayidwa.

LeydenJar: Ndipo tidakhazikitsa silicon, ha!

Pazaka khumi zapitazi, zakhala zotheka kuwonjezera pang'ono graphite ndi silicon kuti achire osachepera ochepa peresenti ya mphamvu zowonjezera. Machitidwe oterewa adakhazikika ndi ma nanostructures osiyanasiyana kotero kuti zotsatira za kukula kwa maukonde a silicon sizinawononge maselo. LeydenJar akuti adapanga njira yogwiritsira ntchito anode opangidwa ndi silicon.

Kampaniyo yayesa ma silicon anode mu zida zomwe zilipo pamalonda, mwachitsanzo ndi ma cathode a NMC 622. mphamvu yeniyeni 1,35 kWh / lpomwe ma cell 2170 omwe amagwiritsidwa ntchito mu Tesla Model 3 / Y amapereka mozungulira 0,71 kWh / L. LeydenJar akuti mphamvu yamagetsi ndi 70 peresenti yapamwamba, zomwe zikutanthauza kuti batire ya kukula kwake imatha kusunga mphamvu 70 peresenti.

Timamasulira izi ku Tesla Model 3 Long Range: m'malo mwa makilomita enieni a 450, maulendo othawa amatha kufika makilomita 765 pamtengo umodzi.... Palibe kuwonjezeka kwa batri.

Vuto la kulimbikira likadalipo

Tsoka ilo, ma cell a LeydenJar silicon si abwino. Anatha kupulumuka zopitilira 100 zogwirira ntchito в kulipiritsa / kutulutsa ndi mphamvu ya 0,5C... The makampani muyezo ndi zosachepera 500 m'zinthu, ndipo pa 0,5 ° C, ngakhale osati zovuta kwambiri lifiyamu-ion maselo ayenera kupirira 800 m'zinthu kapena kuposa. Chifukwa chake, kampaniyo ikuyesetsa kuwonjezera moyo wa ma cell.

> Samsung SDI yokhala ndi batri ya lithiamu-ion: lero graphite, posachedwa silicon, posachedwa lithiamu zitsulo maselo ndi osiyanasiyana 360-420 Km mu BMW i3

Chidziwitso kuchokera kwa akonzi a www.elektrowoz.pl: Tikakamba za silicon ndi graphite m'maselo a lithiamu-ion, tikukamba za anodes. Kumbali ina, tikamatchula NMC, NCA kapena LFP, nthawi zina pogwiritsa ntchito mawu akuti "cell chemistry", tikutanthauza cathodes. Selo ndi anode, cathode, electrolyte ndi zinthu zina. Aliyense wa iwo amakhudza magawo.

Zindikirani 2 m'kope la www.elektrowoz.pl: Njira yotupa ya ma silicon anode sayenera kusokonezedwa ndi kutupa kwa ma cell m'matumba. Omaliza amatupa chifukwa cha mpweya wotuluka mkati, womwe ulibe mphamvu yothawira mkati.

Chithunzi chotsegulira: kukhomerera china chake 😉 (c) LeydenJar. Kutengera nkhaniyo, mwina tikunena za silicon anode. Komabe, ngati timvetsera kufewa kwa zinthuzo (zimapindika, zimatha kudulidwa ndi scalpel), ndiye kuti tikulimbana ndi ma silicones, ma polima opangidwa ndi silicon. Chomwe chiri chochititsa chidwi mwachokha.

Izi zingakusangalatseni: