Chalmers University of Technology atanga zirchiangtute chuan electric lirthei battery atanga metal recycle dan thar leh tangkai tak an rawt a. Hetiang hmang hian EV battery hman tawh atang hian 100% aluminium leh 98% lithium a la chhuak thei a ni. Hei hian raw material hlu tak tak nickel, cobalt leh manganese te hloh a ti tlem a ni. Hetianga tih hian chemical man to leh hlauhawm tak a mamawh lo a, a chhan chu zirchiangtute hian oxalic acid an hmang a, hei hi acid hi plant kingdom-ah pawh hmuh tur a ni.
Tun thlengin tumahin oxalic acid hmanga he lithium zat hi thliar hran a, aluminium zawng zawng paih chhuah theihna tur dinhmun remchang an la hmu thei lo. Chalmers University of Technology-a Department of Chemistry and Chemical Engineering-a PhD zirlai Leah Rouquette chuan battery zawng zawngah aluminium a awm vek avangin thir dang hloh lova kan paih chhuak thei tur a ni, a ti.
Chalmers University of Technology-a Battery Recycling Laboratory-ah Leah Rouquette leh research leader Martina Petranikova te chuan he method thar hnathawh dan an entir a ni. Laboratory-ah hian car battery hman tawhte a awm a, fume hood-ah chuan thil chi hrang hrang, powder dum hmin ṭha tak, tui thianghlim – oxalic acid-a hmin ang chi thil chi hrang hrang a awm a ni. Leah Rouquette hian kitchen blender ang maia lang chu liquid leh powder te mix nan a hmang thin. Coffee siam ang maia awlsam tak ni mah se, a hman dan bik chu a danglam bik a, tun hnaia scientific lama hmasawnna tihchhuah a ni. Temperature, concentration leh time te fine-tuning hmangin zirchiangtute chuan recipe thar an siam a, chu chu oxalic acid hmanga siam a ni a, hei hi boruak tichhe lo thil a ni a, rhubarb leh spinach ang chi thlaiah pawh hmuh tur a awm bawk.
Tunlai inorganic chemicals ai chuan alternative a ngai a ni. Tin, tunlai thil tih danah hian harsatna lian ber pakhat chu aluminum ang chi thil awmsa paih chhuah hi a ni. Chalmers University of Technology-a Department of Chemistry and Chemical Engineering-a Associate Professor Martina Petranikova chuan, recycling industry-a thil thar siam thei tur leh hmasawnna tikhawtlai thei harsatna chinfelna kawnga pui thei tur thil thar a nih thu a sawi.
Liquid hmanga siam dan hi hydrometallurgy an ti a. Traditional hydrometallurgy-ah chuan aluminium leh copper ang chi thil atanga “bawlhhlawh” te chu paih hmasak a ni a, chutah chuan thir hlu tak tak lithium, cobalt, nickel leh manganese te hman theih a ni. Aluminium leh copper tlemte chauh la awm mah se, tihthianghlimna tur stage engemaw zat a ngai a, chu chu stage tinah leak a awm thin. He method thar hmang hian zirchiangtute chuan cut chu an thlak a, a hmasa berah chuan lithium leh aluminium chu an thliar hrang ta a ni. Chutiang chuan battery thar siamna atana mamawh thir hlu tak takte chu an ti tlem thei a ni.
A tih dan chanve hnihna—a dark mixture filter-na pawh—chuan coffee siam dan a hriatchhuah tir a ni. Aluminium leh lithium chu tuiah an luh laiin, thir dangte chu “sump”-ah an awm reng a ni. Hetianga tih tur dang chu aluminium leh lithium thliar hran a ni.
“Heng metal-te hian property hrang hrang an neih avangin inthen hran hi a harsa dawn lo niin kan ring. Kan hmanraw thar hian battery recycling atana kawng thar beisei awm tak a hawng a, chu chu chhui belh zel turin kan incentive zawng zawng kan nei a ni,” tiin Leah Rouquette chuan a sawi. Martina Petranikova chuan, “He method hi nasa taka hman theih a nih avangin kum lo awm turteah industry-ah pawh a tangkai ngei kan beisei,” a ti.
Martina Petranikova-i research group hian kum tam tak chhung chu lithium-ion battery-a metal recycling chungchangah zirchianna hmahruaitu an lo nei tawh a ni. He pawl hian electric lirthei battery recycle-na lama inhnamhnawih company-te nen thawhhona an nei a, R&D project lian tak tak Volvo Cars leh Northvolt-a Nybat project-ah te thawhpui an ni.
Research chungchanga hriat belh tur: Scientific article “Lithium-ion electric vehicle battery atanga lithium fullly selective recovery: modeling and optimization using oxalic acid as a lixiviant” tih chu journal Separation and Purification Technology-ah tihchhuah a ni. He zirchianna hi Chalmers University of Technology-a Department of Chemistry and Chemical Engineering atanga Leah Rouquette, Martina Petranikova leh Natalia Vieceli te chuan an ti a ni. He zirchianna hi Swedish Energy Agency, Swedish Battery Base leh Vinnova-te sum hmanga tih a ni a, Stena Recycling leh Akkuser Oy-te siam, Volvo Cars electric vehicle battery hman tawh hmanga experiment neih a ni.
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