Te Aranga Hou i roto i te Hangarau Hangarua Pūhiko Lithium-Ion

I whakaputaina tētahi rangahau tata nei i te 29 o Hūrae i roto i te hautakaNgā Rauemi Mahi Matataue whakaahua ana i tētahi tikanga tere, whai hua, me te pai ki te taiao mō te whakaora i te lithium whiriwhiri mā te whakamahi i te irahiko ngaruiti me tētahi whakarewa ngāwari te pirau. Kua whakawhanakehia e ngā kairangahau i Te Whare Wānanga o Rice i te Hononga o Amerika tēnei tukanga auaha, e taea ai te whakaora i te 50% o te lithium mai i ngā cathode pākahiko lithium-ion (LIB) kua pau i roto i te 30 hēkona noa iho, e whakatika ana i tētahi arai nui i roto i te hangarau hangarua LIB.

I tēnei wā, kei te piki haere te hiahia mō te lithium, he konganuku hiriwa-mā, ā, kei runga ake i te toenga.

He kino ki te taiao, ā, he tino koretake hoki ngā tikanga tuku iho mō te whakaora i te lithium mai i ngā pākahiko kua pau. Ko ngā wero matua ko te poke me te ngaronga o te lithium i te wā o te tukanga whakaora, me te nui hoki o te pūngao e pau ana. Nā te mea ka tangohia te lithium i muri i ētahi atu konganuku, kua rapu ngā kairangahau i ngā tikanga e aro ana ki te whakaora i te lithium.

I roto i tēnei rangahau, i whakamahia e ngā kairangahau he ranunga o te choline chloride me te ethylene glycol hei whakarewa hohonu eutectic (DES). I kitea i mua e rātou i te wā o te tukanga horoinga me te DES, ka karapotia ngā ion lithium e ngā ion chloride mai i te choline chloride ka horoia ki roto i te otinga.

Hei tango i ētahi atu konganuku pēnei i te cobalt, te nickel rānei, e hiahiatia ana te choline chloride me te ethylene glycol. I roto i ēnei matū, ko te choline chloride anake ka mimiti i ngā ngaruiti. I rumakina e ngā kairangahau ngā para pākahiko ki roto i te whakarewa, ā, i whakamahia te irahiko ngaruiti, kia taea ai te tango i te lithium whiriwhiri mai i ētahi atu konganuku.

He rite te whakamahi i te irahiko ngaruiti ki te whakamahana tere i te kai i roto i te oumu ngaruiti o te kīhini. Ka tukuna tika te pūngao ki ngā ngota, ka tere ake te tauhohenga i ngā tikanga whakamahana tuku iho.

I kitea e ngā kairangahau mā te tukanga ngaruiti, e 15 meneti te roa o te tango i te 87% o te lithium, engari ko te whakatutuki i te tere whakaora ōrite me te whakamahana kaukau hinu e 12 hāora te roa. Ka whakapai ake tēnei tikanga hou i te whai huatanga ōhanga me te pānga taiao o te hangarua pākahiko lithium-ion, ka tukuna he otinga hou pumau ki tētahi raruraru o te ao e tipu haere ana.

Mō ētahi atu pārongo mō te ahumahi me te hua, whakapā mai ki a mātou:
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