Cilmi-baarayaasha kaJaamacadda Farsamada ee Munich(TUM) iyoRWTH Aachen UniversityJarmalka waxay is barbardhigeen waxqabadka korantada ee baytariyada sodium-ion-tamarta sare leh (SIBs) iyo tan casriga ah ee tamarta sare ee tamarta lithium-ion (LIBs) oo leh lithium-iron-phosphate (LFP) cathode.

Kooxdu waxay ogaatay in heerka kharashka iyo heerkulku ay saameyn sare ku leeyihiin iska caabinta garaaca wadnaha iyo xannibaadda SIB-yada marka loo eego LIBs, taas oo saameyn ku yeelan karta doorashooyinka naqshadeynta waxayna soo jeedinaysaa in SIB-yadu ay u baahan karaan heerkul aad u sarreeya iyo nidaamyada maaraynta kharashka si kor loogu qaado waxqabadka, gaar ahaan heerarka hoose ee kharashka.

• Si aad u sii sharaxdo iska caabbinta garaaca wadnaha: ereyga waxa uu tilmaamayaa inta korantada batarigu hoos u dhaco marka baahida degdega ah loo isticmaalo. Sidaa darteed, cilmi-baaristu waxay muujinaysaa in baytariyada sodium-ion ay aad u saameeyaan heerka kharashka iyo heerkulka marka loo eego baytariyada lithium-ion.

Cilmi baaris:

"Batariyada Sodium-ion [SIBs] waxaa guud ahaan loo arkaa inay yihiin beddelka LIBs," saynisyahannadu waxay yiraahdeen. "Si kastaba ha ahaatee, kala duwanaanshaha habdhaqanka elektiroonigga ah ee sodium iyo lithium waxay u baahan yihiin la-qabsiga labadaba anode iyo cathode labadaba. Halka baytariyada lithium-ion [LIBs] inta badan graphite loo isticmaalo walxo anode ah, SIBs kaarboon adag ayaa hadda loo arkaa sheyga ugu rajada badan ee SIBs."

Waxa kale oo ay ku macneeyeen in shaqadoodu ay ugu talagashay in ay ku buuxiyaan booska ka maqan cilmi-baadhista, maadaama ay weli jirto aqoon la’aan ku saabsan hab-dhaqanka koronto ee SIB-yada ee heer kulka kala duwan iyo heerka-kharashka (SOCs).

Kooxda cilmi-baadhistu waxay samaysay, gaar ahaan, cabbirada waxqabadka korantada ee heerkul u dhexeeya 10 darajo C ilaa 45 C iyo cabbirada korantada furan ee unugga buuxa heerkul kala duwan iyo sidoo kale cabbirada unugyada nuska unugyada u dhigma ee 25 C.

"Intaa waxaa dheer, waxaan baarnay saameynta heerkulka iyo SOC labadaba caabbinta tooska ah ee hadda jirta (R DC) iyo galvanostatic electrochemical impedance spectroscopy (GEIS)," ayaa lagu qeexay. "Si loo baadho awoodda la isticmaali karo, tamarta la isticmaali karo, iyo waxtarka tamarta ee xaaladaha firfircoon, waxaan sameynay tijaabooyin awoodeed annagoo adeegsanayna heerar kala duwan oo culeys ah heerkul kala duwan."

Cilmi-baarayaashu waxay cabbireen baytari lithium-ion ah, baytari sodium-ion leh cathode nikkel-manganese-iron ah, iyo baytari lithium-ion leh cathode LFP ah. Saddexduba waxay muujiyeen korantada hysteresis, taasoo la micno ah korontadooda wareega-furan inay ku kala duwan yihiin dallacaadda iyo dallacaadda.

"Waxa xiisaha lihi leh, SIB-yada, diiqadu waxay ugu horrayn ku dhacdaa SOC-yada hoose, taas oo ah, marka loo eego cabbirada unugga nuska ah, oo ay u badan tahay inay ugu wacan tahay anode-ka adag ee kaarboonka," ayay culimadu carrabka ku adkeeyeen. "R DC iyo caqabada LIB waxay muujinayaan ku-tiirsanaanta SOC. Taas bedelkeeda, SIBs, R DC-ga iyo xannibaadda ayaa si weyn u kordheysa SOC-yada ka hooseeya 30%, halka SOC-yada sare ay leeyihiin saameyn liddi ku ah waxayna u horseedaan hoos u dhigista R DC iyo qiyamka impedance."

Waxaa intaa dheer, waxay xaqiijiyeen in ku-tiirsanaanta heerkulka R_DC iyo xannibaadda ay ka sarreyso SIB-yada marka loo eego LIBs. "Tijaabooyinku LIB ma muujiyaan saameyn weyn oo SOC ah oo ku saabsan waxtarka safarka wareega. Taas bedelkeeda, baaskiil wadista SIBs laga bilaabo 50% ilaa 100% SOC waxay yareyn kartaa khasaaraha waxtarka leh in ka badan kala badh marka la barbar dhigo baaskiilka laga bilaabo 0% ilaa 50%, "Waxay sii sharaxeen, iyaga oo xusay in waxtarka SIBs marka la barbardhigo heerarka hoose ee SIBs Kala duwanaanshaha SOC.