"Maselo athu a aluminiyumu-ion (aluminiyamu-ion) amawononga nthawi 60 mofulumira kuposa maselo a lithiamu-ion." Zopatsa chidwi! :)

Sabata yatsopano ndi batire yatsopano. Gulu la Graphene Manufacturing Group yaku Australia imati idapanga ma cell otengera graphene ndi aluminiyamu (chinthu). Amanena kuti "amalipira maulendo 60 mofulumira kuposa maselo abwino kwambiri a lithiamu-ion," ndipo "amakhoza kusunga mphamvu zambiri katatu kuposa maselo ena a aluminium-ion."

Maselo a Al-ion GMG. Zonse zikumveka zabwino kwambiri

Zamkatimu

• Maselo a Al-ion GMG. Zonse zikumveka zabwino kwambiri
  • Aluminium ndi yotsika mtengo, graphene ndiyokwera mtengo

Maselo a aluminiyamu a GMG ayenera kukhala mu mawonekedwe a zinthu zokankhira-batani zomwe timadziwa, mwachitsanzo, makiyi kapena zoseweretsa zazing'ono. Koma kuthamangitsa kuchulukitsa ka makumi asanu ndi limodzi mwachangu zikumveka zodabwitsa. Ali ndi malinga ndi mawerengedwe chomaliza kuyambira mphindi 1 mpaka 5. Kuchuluka kwa mphamvu ndi "katatu kuposa zinthu zina zokhala ndi ayoni aluminiyamu." 0,15-0,16 kWh / kg.

Kampaniyo imatha kudzitamandira ndi gawo limodzi: kuthekera kopeza mphamvu mpaka 7 kW kuchokera ku 1 kilogalamu yama cell. Ndiko kuti makola mu galimoto yamagetsi yachitsanzokulemera kwake 250 kg, amatha kupanga mpaka 1,75 MW (!, 2 km) yamphamvu pachimake... Zimamveka cosmic, osachepera pamapepala. Choyipa chake ndi voteji yogwira ntchito ya cell, pakadali pano ndi 1,7 V.

Pogwiritsa ntchito graphene, aluminium ion cell prototype yopangidwa ndi GMG

Pomaliza, kutchulidwa kwa kugwiritsa ntchito graphene kumveka kosangalatsa, chifukwa mayankho otere awonekera kale: graphene cathode idapangitsa kuti ifike pamlingo wa 0,2-0,3 kWh / kg ndikupangitsa kuti zitheke makumi kapena masauzande a opareshoni. kuzungulira (!). Lipoti lochokera ku China ndi lochititsa chidwi kwambiri chifukwa cha kuyandikira kwake ku Australia komanso ubale wa sayansi pakati pa mayiko awiriwa. Chabwino, yunivesite ya Zhejiang inapanga selo losinthika, losayaka moto la aluminiyamu ion cell yomwe imatha kulipira mumasekondi a 1,1 ndikusunga 91,7 peresenti ya mphamvu yake yoyambirira pambuyo pa ma 250 (gwero).

Aluminium ndi yotsika mtengo, graphene ndiyokwera mtengo

Kugwira ntchito pama cell a aluminiyamu kwakhala kukuchitika kwa zaka zambiri chifukwa aluminiyumu ndi chitsulo chodalirika kwambiri ngati chomangira cha anode ya ion donor. Koma pamafunika mtengo electrolytes ndi cathodes ngati tikufuna kupewa kugwirizana ndi zinthu zina mu selo, chifukwa nsinga zimenezi mwamsanga kuwononga dongosolo. Pakadali pano, Graphene Manufacturing Group akuti itulutsa mabatani a aluminiyamu kumapeto kwa chaka chino kapena koyambirira kwa 2022. Ma sachet amagalimoto akuyembekezeka kukhala okonzeka koyambirira kwa 2024..

Mabatire agalimoto otengera ma cell aluminiyamu ion sadzakhala opepuka chifukwa cha kuchuluka kwawo kwamphamvu. GMG ikunena izi Maselo a aluminiyamu ion alibe vuto ndi kutentha kwakukulu kapena kutsika, kotero pali mwayi woti sangafunike kuzizira kapena kutenthedwa.... Kuonjezera apo, m'tsogolomu adzakhala ndi mawonekedwe omwewo ndikupereka mphamvu yofanana ndi maselo a lithiamu-ion panopa, kuti athe kusinthidwa mosavuta ndi mapaketi omwe alipo (gwero).

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