Jami'ar Fasaha ta Chalmers da ke Sweden ta ba da rahoton wata sabuwar hanya ta sake amfani da batirin motocin lantarki. Tsarin ba ya buƙatar sinadarai masu tsada ko masu cutarwa saboda masu binciken sun yi amfani da oxalic acid, wani sinadari mai guba da ake samu a masarautar shuka.
A cewar jami'ar, wannan tsari zai iya dawo da kashi 100% na aluminum da kashi 98% na lithium daga batirin ababen hawa masu amfani da wutar lantarki. Wannan kuma yana rage asarar kayan masarufi masu mahimmanci kamar nickel, cobalt da manganese.
A dakin gwaje-gwaje na sake amfani da batirin Jami'ar Chalmers, wata ƙungiya ta yi ƙoƙarin sarrafa baƙar fata, cakuda mai ƙura na muhimman abubuwa masu aiki a cikin batura, a cikin sinadarin oxalic acid. Musamman ma, muna magana ne game da batirin motar lantarki ta Volvo. Bayanin ya bayyana tsarin a matsayin "yin kofi." A gaskiya ma, komai ya fi rikitarwa, domin domin tsarin oxalic acid ya samar da tasirin da ake so, yana da mahimmanci a zaɓi zafin jiki, yawan amfani da tsawon lokacin da ake buƙata. Af, ana samun oxalic acid a cikin tsire-tsire kamar rhubarb da alayyafo.
"Har yanzu, babu wanda ya sami damar samun yanayi mai dacewa don raba irin wannan adadi mai yawa na lithium ta amfani da oxalic acid da kuma cire dukkan aluminum. Saboda dukkan batura suna ɗauke da aluminum, muna buƙatar mu iya cire shi ba tare da rasa wasu ƙarfe ba," in ji Leah Rouquette, ɗaliba mai digiri a sashen.
A cikin hanyoyin hydrometallurgical da ake amfani da su a yanzu, ana narkar da sinadarai masu ƙarfe a cikin acid marasa tsari. Sannan ana cire "ƙazanta" kamar aluminum da jan ƙarfe sannan a dawo da kayan aiki kamar su cobalt, nickel, manganese da lithium, bi da bi.
Duk da haka, masu binciken Sweden sun lura cewa ko da ƙananan adadin aluminum da jan ƙarfe da suka rage suna buƙatar matakai da yawa na tsarkakewa, kuma kowane mataki a cikin aikin na iya haifar da asarar lithium. Ta amfani da sabuwar hanyar, masu binciken sun juya tsari kuma suka fara rage lithium da aluminum. Wannan yana ba su damar rage ɓarnar ƙarfe masu daraja da ake buƙata don yin sabbin batura.
Mataki na gaba kuma za a iya kwatanta shi da yin kofi: yayin da aluminum da lithium suke cikin ruwa, sauran karafa suna nan a cikin "ƙarfe". Mataki na gaba a cikin wannan tsari shine raba aluminum da lithium. "Saboda waɗannan karafa 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.
"Muna buƙatar madadin sinadarai marasa sinadarai. Ɗaya daga cikin manyan matsaloli a cikin ayyukan yau shine cire kayan da suka rage kamar aluminum. Wannan wata sabuwar hanya ce da za ta iya samar da sabbin hanyoyin magance matsalolin da ke hana ci gaba," in ji farfesa a sashen. Martina Petranikova Duk da haka, ta ƙara da cewa hanyar tana buƙatar ƙarin bincike: "Tunda ana iya ƙara wannan hanyar, muna fatan za a iya amfani da ita a masana'antu a cikin shekaru masu zuwa."
Tun daga shekarar 2011, mun daɗe muna ba da rahotanni kan ci gaban motocin lantarki da sha'awar aikin jarida da ƙwarewa. A matsayinmu na manyan kafofin watsa labarai na ƙwararru a masana'antar, muna ba da rahotanni mafi inganci da cikakken bayani game da abubuwan da suka faru, wanda ke aiki a matsayin babban dandamali don haɓaka wannan fasaha cikin sauri. Ya haɗa da labarai, bayanan baya, rahotannin tuƙi, tambayoyi, bidiyo da bayanan talla.