CATL ndizodabwitsa. Anayambitsa maselo a Na-ion (sodium-ion) ndi batri yochokera pa iwo

CATL yaku China ili ndi m'badwo woyamba wa ma cell a sodium-ion ndi batire yachitsanzo yoyendetsedwa ndi iwo. Malo osiyanasiyana ofufuza akhala akuwonetsa mitundu yoyambira ya maselo kwa zaka zingapo, ndipo CATL ikufuna kukhazikitsa njira zopangira zopangira pofika 2023. Chifukwa chake, akufuna kuwakonzekeretsa kuti apange zinthu zambiri ndikuwabweretsa kumsika.

Lithium-ion ndi Na-ion zinthu (Na⁺) mu mtundu wa CATL

Maselo a sodium-ion - mwachiwonekere - mmalo mwa lithiamu, amagwiritsa ntchito membala wina wa gulu la alkaline, sodium (Na). Sodium ndi imodzi mwazinthu zochulukirapo kwambiri padziko lapansi, imapezekanso m'madzi a m'nyanja ndipo ndiyosavuta kupeza kuposa lithiamu. Chifukwa chake, ma cell a Na-ion ndi otsika mtengo kupanga.osachepera pankhani ya zipangizo.

Koma sodium imakhalanso ndi zovuta zake. Malinga ndi positi ya CATL, mphamvu yeniyeni ya zinthu za sodium-ion mpaka 0,16 kWh / kg choncho, ndi pafupifupi theka la maselo abwino kwambiri a lithiamu-ion. Kuphatikiza apo, kugwiritsa ntchito sodium kumatanthauza kuti "zofunikira kwambiri" ziyenera kugwiritsidwa ntchito pamapangidwe ndi machitidwe a maselo. Ichi ndi chifukwa cha kukula kwa ayoni sodium, amene ndi 1/3 lalikulu kuposa ayoni lithiamu choncho kukankhira anode kwambiri padera - kupewa kuwonongeka kwa anode, CATL anayamba porous "molimba mpweya" anode.

Mbadwo watsopano wa ma cell a CATL Na-ion kuchuluka kwamphamvu kwa 0,2 kWh / kg kapena kupitilira apo kukuyembekezeka kukwaniritsidwa, ayamba kuponda pazidendene za lithiamu iron phosphate (LiFePO₄). Kale ma cell a sodium ion amalipira ndalama zokwana 80 peresenti m’mphindi 15 zokhazomwe ndi zotsatira zabwino kwambiri - maselo abwino kwambiri a lithiamu-ion omwe amapezeka pamalonda ali pamtunda wa mphindi 18, ndipo m'ma laboratories zinali zotheka kuchepetsa mtengo uwu.

Ukadaulo wopangira ma cell a Na-ion uyenera kukhala wogwirizana ndi ukadaulo wodziwika ndi ma cell a lithiamu-ion.Chifukwa chake, mizere yopanga imatha kusinthidwa kuchokera ku sodium kupita ku lithiamu, zolemba za CATL. Zinthu zatsopano ziyeneranso kukhala ndi magwiridwe antchito abwino pakutentha kotsika komanso kosiyanasiyana, pa -20 digiri Celsius ayenera kusunga 90 peresenti (!) ya mphamvu zawo zoyambiriraPakadali pano, mabatire a LFP pansi pazimenezi amangokhala ndi 30 peresenti ya mphamvu zawo akayesedwa kutentha.

CATL yapereka batire yotengera ma cell a Na-ion ndipo sikupatula kuti ibweretsa mayankho osakanizidwa pamsika mtsogolomo. Kuphatikiza kwa maselo a Li-Ion ndi Na-Ion mu phukusi limodzi kudzakuthandizani kuti mugwiritse ntchito njira zonse ziwiri, malingana ndi zomwe zilipo.

Zolemba za mkonzi www.elektrowoz.pl: Chitsanzo choyamba cha ma cell a Na-ion osindikizidwa mu mapaketi amalonda a 18650 adawonetsedwa ndi French Atomic Energy and Alternative Energy Committee CEA mu 2015 (gwero). Iwo anali ndi kachulukidwe mphamvu 0,09 kWh / kg.

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