Kua whakawhanakehia e ngā kairangahau tētahi tikanga hangarua ka taea te whakaora i te 100% o te konumohe me te 98% o te konupūmā i roto i ngā pākahiko waka hiko.
E ai ki ngā kairangahau o Huitene kua whakawhanakehia e rātou tētahi tikanga hou, he pai ake hoki mō te hangarua i ngā pākahiko o ngā waka hiko.
"Nā te mea ka taea te whakanui ake i te tikanga, ko tā mātou e tumanako nei ka whakamahia i roto i te ahumahi i ngā tau e haere ake nei," te kī a te kaiārahi o te rangahau, a Martina Petranikova.
I roto i te hangarau waiwhakarewa tuku iho, ka rewahia ngā konganuku katoa i roto i ngā pākahiko waka hiko ki ngā waikawa inorganic.
Kātahi ka tangohia ngā "paru" pērā i te konumohe me te parahi, ā, ka whakahokia mai ngā konganuku utu nui pērā i te cobalt, te nickel, te manganese me te lithium.
Ahakoa he iti te nui o te konumohe me te parahi e toe ana, he maha ngā taahiraa purenga e hiahiatia ana, ā, ko ia taahiraa o te tukanga ka ngaro pea te konukōreiti.
Kua whakawhanakehia e ngā kairangahau i Te Whare Wānanga Hangarau o Chalmers i Huitene tētahi tikanga hangarua ka taea te whakaora i te 100% o te konumohe me te 98% o te lithium i roto i ngā pākahiko waka hiko.
Ko tēnei ko te whakarerekē i te raupapatanga o ngā tukanga o nāianei, ā, ko te tukatuka matua ko te konukōreiti me te konumohe.
I taua wā anō, ka whakaitihia te ngaronga o ngā rauemi mata nui pērā i te nikara, te konupora me te konupora.
"Tae noa mai ki tēnei wā, kāore anō kia kitea e tetahi ngā tikanga tika hei whakamahi i te waikawa oxalic hei wehe i tētahi nui o te lithium me te tango i te konumohe katoa i te wā kotahi," te kī a Leah Rouquette, he tauira paerua i te Tari Matū me te Hangarau Matū i Te Whare Wānanga Hangarau o Chalmers.
"I te mea he konumohe kei roto i ngā pākahiko katoa, me taea e tātou te tango atu me te kore e ngaro ētahi atu konganuku."
I roto i tā rātou taiwhanga hangarua pākahiko, ka whakanohoia e Rouquette rāua ko te kaiārahi rangahau a Petranikova ngā pākahiko waka kua whakamahia me ō rātou mea i kuruhia ki roto i te taupoki auahi.
Ka whakarewaina te paura pango kua hurihia kia pai ki roto i tētahi wai mārama e kiia nei ko te waikawa oxalic, he matū matomato ake e kitea ana i roto i ngā tipu pērā i te rhubarb me te spinach.
Whakatakotoria te paura me te wai ki roto i tētahi mīhini rite ki te mīhini whakaranu kihini. I konei, ka rewa te konumohe me te konukōre i roto i te pākahiko ki roto i te waikawa ōkārika, ka waiho ngā konganuku e toe ana hei totoka.
Ko te taahiraa whakamutunga o te tukanga ko te wehewehe i ēnei konganuku hei tango i te lithium, ka taea ai te whakamahi hei hanga pākahiko hou.
"Nā te mea he tino rerekē ngā āhuatanga o ēnei konganuku, kāore mātou e whakaaro he uaua ki te wehewehe i a rātou. He huarahi hou whai hua tā mātou tikanga ki te hangarua i ngā pākahiko, ā, he mea tika kia tūhuratia anō," te kī a Rouquette.
He maha ngā tau e pau ana i te tīma rangahau a Petranikova ki te whakahaere i ngā rangahau matatau mō te hangarua i ngā konganuku i roto i ngā pākahiko lithium-ion.
Kei roto ia i ngā kaupapa mahi tahi me ngā kamupene e whai wāhi ana ki te hangarua i ngā pākahiko waka hiko. He hoa mahi te rōpū i roto i ngā kaupapa rangahau me te whanaketanga nui, ā, ko ana waitohu ko Volvo me Northvolt.