Masu bincike sun ƙirƙiro wata hanyar sake amfani da ita wadda za ta iya dawo da kashi 100% na aluminum da kashi 98% na lithium a cikin batirin ababen hawa masu amfani da wutar lantarki.
Masu bincike na Sweden sun ce sun ƙirƙiro wata sabuwar hanya mafi inganci don sake amfani da batirin motocin lantarki.
"Saboda za a iya ƙara girman wannan hanyar, muna fatan za a yi amfani da ita a masana'antu a cikin shekaru masu zuwa," in ji jagorar binciken Martina Petranikova.
A cikin hydrometallurgy na gargajiya, duk ƙarfe a cikin batirin abin hawa na lantarki ana narkewa a cikin acid marasa tsari.
Ana cire "ƙazanta" kamar aluminum da jan ƙarfe sannan a dawo da karafa masu daraja kamar su cobalt, nickel, manganese da lithium.
Duk da cewa adadin aluminum da jan ƙarfe da suka rage ƙanana ne, yana buƙatar matakai da yawa na tsarkakewa, kuma kowane mataki a cikin aikin na iya nufin asarar lithium.
Masu bincike a Jami'ar Fasaha ta Chalmers da ke Sweden sun ƙirƙiro wata hanyar sake amfani da ita wadda za ta iya dawo da kashi 100% na aluminum da kuma kashi 98% na lithium a cikin batirin motocin lantarki.
Ya ƙunshi canza tsarin aiki na yanzu da kuma sarrafa lithium da aluminum.
A lokaci guda, asarar kayan masarufi masu mahimmanci kamar nickel, cobalt da manganese yana raguwa.
"Har yanzu, babu wanda ya sami damar samun yanayin da ya dace don amfani da oxalic acid don raba irin wannan babban adadin lithium yayin da ake cire dukkan aluminum a lokaci guda," in ji Leah Rouquette, ɗaliba mai digiri a Sashen Kimiyya da Injiniyan Sinadarai a Jami'ar Fasaha ta Chalmers.
"Tunda dukkan batura suna ɗauke da aluminum, muna buƙatar mu iya cire shi ba tare da rasa sauran ƙarfe ba."
A dakin gwaje-gwajen sake amfani da batirin su, Rouquette da shugabar bincike Petranikova sun sanya batirin mota da aka yi amfani da shi da kuma abubuwan da ke cikinsa a cikin wani murfi mai hayaki.
Fodar baƙar fata da aka niƙa ta yi laushi tana narkewa a cikin wani ruwa mai tsabta na halitta wanda ake kira oxalic acid, wani sinadari mai kore da ake samu a cikin tsire-tsire kamar rhubarb da alayyafo.
A sanya foda da ruwan a cikin injin da yayi kama da injin blender na kicin. A nan, aluminum da lithium da ke cikin batirin suna narkewa a cikin oxalic acid, suna barin sauran ƙarfe a cikin siffa mai ƙarfi.
Mataki na ƙarshe a cikin wannan tsari shine a raba waɗannan ƙarfe don fitar da lithium, wanda daga nan za a iya amfani da shi don ƙera sabbin batura.
"Saboda waɗannan ƙarfe suna da halaye daban-daban, ba ma tsammanin zai yi wuya a raba su ba. Hanyarmu sabuwar hanya ce mai kyau ta sake amfani da batura wadda tabbas ta cancanci a ci gaba da bincike," in ji Rouquette.
Ƙungiyar bincike ta Petranikova ta shafe shekaru tana gudanar da bincike na zamani kan sake amfani da ƙarfe a cikin batirin lithium-ion.
Yana da hannu a ayyukan haɗin gwiwa daban-daban tare da kamfanoni da ke da hannu a sake amfani da batirin motocin lantarki. Ƙungiyar abokin tarayya ce a manyan ayyukan bincike da haɓakawa kuma samfuranta sun haɗa da Volvo da Northvolt.