Asayansi apanga ma cell a sodium-ion (Na-ion) okhala ndi electrolyte yolimba • ELECTRIC CARS
Asayansi ochokera ku yunivesite ya Austin (Texas, USA) apanga maselo a Na-ion okhala ndi electrolyte yolimba. Iwo sanakonzekere kupanga, koma amawoneka odalirika: ali ofanana mwazinthu zina ndi maselo a lithiamu-ion, amapirira maulendo angapo ogwiritsira ntchito ndikugwiritsa ntchito chinthu chotsika mtengo komanso chotsika mtengo - sodium.
Asphalt, graphene, silicon, sulfure, sodium - zinthu izi ndi zinthu zidzatheketsa kusintha zinthu zamagetsi m'tsogolomu. Ali ndi chinthu chimodzi chofanana: amapezeka mosavuta (kupatulapo graphene) ndipo amalonjeza kugwira ntchito mofanana ndi, ndipo mwinanso bwino m'tsogolomu, lithiamu.
Lingaliro losangalatsa ndikulowetsa lithiamu ndi sodium. Zinthu zonsezi zili m'gulu lomwelo la zitsulo zamchere, zonse zimagwira ntchito mofanana, koma sodium ndi chinthu chachisanu ndi chimodzi chomwe chimakhala chochuluka kwambiri padziko lapansi ndipo tikhoza kuchipeza motchipa. M'maselo a Na-ion opangidwa ku Texas, lithiamu mu anode imasinthidwa ndi sodium, ndipo ma electrolyte oyaka amasinthidwa ndi ma electrolyte olimba a sulfure. (gwero).
Poyamba, cathode ya ceramic idagwiritsidwa ntchito, koma panthawi yogwira ntchito (kuvomereza malipiro / kutengerapo) idasintha kukula ndikusweka. Chifukwa chake, idasinthidwa ndi cathode yosinthika yopangidwa ndi zinthu zachilengedwe. Selo lomwe linapangidwa motere limagwira ntchito mopanda kulephera kwa maulendo opitilira 400 / kutulutsa, ndipo cathode idalandira kachulukidwe ka 0,495 kWh / kg (mtengo uwu sayenera kusokonezedwa ndi kachulukidwe kake ka cell kapena batire).
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Pambuyo pa kusintha kwa cathode, zinali zotheka kufika pamlingo wa 0,587 kWh / kg, womwe pafupifupi umagwirizana ndi mfundo zomwe zimapezeka pa cathodes za maselo a lithiamu-ion. Pambuyo pa maulendo a 500, batire inatha kusunga 89 peresenti ya mphamvu zake.zomwe zimagwirizananso ndi magawo a maselo a Li-ion [ofooka].
Ma cell a Na-ion amagwira ntchito pamagetsi otsika kuposa ma cell a lithiamu-ion, kotero amatha kugwiritsidwa ntchito kupatsa mphamvu zamagetsi zam'manja. Komabe, gulu la Austin lidaganizanso zosunthira kumagetsi apamwamba kuti ma cell agwiritsidwe ntchito pamagalimoto amagetsi. Chifukwa chiyani? Chimodzi mwa magawo akuluakulu a galimoto ndi mphamvu zake, ndipo zimatengera mphamvu zamakono ndi magetsi pamagetsi.
Ndikoyenera kuwonjezera kuti John Goodenough, yemwe anayambitsa maselo a lithiamu-ion, amachokera ku yunivesite ya Austin.
Kutsegula kwa Chithunzi: Kuchita kwa kachulu kakang'ono ka sodium m'madzi (c) Katswiri wa Memory Ron White - Maphunziro a Memory ndi maphunziro aubongo / YouTube. Zitsanzo zinanso:
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