Cabanga isangoma sitshela abazali bakho, ngosuku owazalwa ngalo, ukuthi uzophila isikhathi esingakanani.Umuzwa ofanayo ungenzeka kosokhemisi bebhethri abasebenzisa amamodeli ekhompyutha amasha ukubala ukuphila kwebhethri ngokusekelwe kumjikelezo owodwa nje wokuhlola wedatha.

Ocwaningweni olusha, abacwaningi base-US Department of Energy's (DOE) Argonne National Laboratory baphendukele emandleni okufunda ngomshini ukuze babikezele isikhathi sokuphila sohlu olubanzi lwamakhemistri amabhethri ahlukene.Ngokusebenzisa idatha yokuhlola eqoqwe e-Argonne kusukela kusethi yamabhethri angu-300 amele amakhemikhali ahlukene amabhethri ayisithupha, ososayensi banganquma ngokunembile ukuthi amabhethri ahlukene azoqhubeka isikhathi eside kangakanani ukujikeleza.

Abacwaningi be-Argonne basebenzise amamodeli okufunda omshini ukwenza izibikezelo zempilo yomjikelezo webhethri kuhlu olubanzi lwamakhemikhali ahlukene.(Isithombe nguShutterstock/Sealstep.)

Ku-algorithm yokufunda komshini, ososayensi baqeqesha uhlelo lwekhompuyutha ukwenza iziqondiso kusethi yokuqala yedatha, bese bethatha lokho elikufundile kulokho kuqeqeshwa ukuze benze izinqumo kwelinye isethi yedatha.

"Kuzo zonke izinhlobo ezahlukene zebhethri, kusukela kumakhalekhukhwini kuya ezimotweni zikagesi kuya kwisitoreji segridi, isikhathi sokuphila kwebhethri sibaluleke kakhulu kuwo wonke umthengi," kusho usosayensi we-Argonne computational uNoah Paulson, umbhali wocwaningo.“Ukushayela ibhethri izikhathi eziyizinkulungwane kuze kube yilapho lihluleka kungathatha iminyaka;indlela yethu idala uhlobo lwekhishi lokuhlola lekhompyutha lapho singathola khona ngokushesha ukuthi amabhethri ahlukene azosebenza kanjani.”

"Okwamanje, okuwukuphela kwendlela yokuhlola ukuthi umthamo webhethri uphela kanjani uwukujikelezisa ibhethri," kwengeza isazi samakhemikhali kagesi u-Argonne uSusan "Sue" Babinec, omunye umbhali walolu cwaningo.“Kubiza kakhulu futhi kuthatha isikhathi eside.”

Ngokuka-Paulson, inqubo yokusungula impilo yebhethri ingaba nzima.​Iqiniso liwukuthi amabhethri awahlali unomphela, futhi ukuthi ahlala isikhathi esingakanani kuncike endleleni esiwasebenzisa ngayo, kanye nomklamo wawo kanye nekhemistri yawo,” esho.“Kuze kube manje, ibingekho ngempela indlela enhle yokwazi ukuthi ibhethri lizohlala isikhathi esingakanani.Abantu bazofuna ukwazi ukuthi banesikhathi esingakanani baze basebenzise imali ngebhethri elisha.”

Isici esisodwa esiyingqayizivele socwaningo ukuthi sithembele emsebenzini wokuhlola omkhulu owenziwa e-Argonne ezintweni ezihlukile ze-cathode yebhethri, ikakhulukazi i-cathode esekelwe ku-Argonne's nickel-manganese-cobalt (NMC)."Besinamabhethri amele amakhemikhali ahlukene, anezindlela ezihlukile abehlisa isithunzi bese ehluleka," kusho uPaulson."Inani lalolu cwaningo ukuthi lusinike izimpawu ezibonisa ukuthi amabhethri ahlukene asebenza kanjani."

Ucwaningo olwengeziwe kule ndawo lunamandla okuqondisa ikusasa lamabhethri e-lithium-ion, kusho uPaulson."Enye yezinto esikwaziyo ukuzenza ukuqeqesha i-algorithm kukhemistri eyaziwayo futhi senze izibikezelo kukhemistri engaziwa," esho."Eqinisweni, i-algorithm ingase isikhombe endleleni yamakhemikhali amasha nathuthukisiwe anikeza ukuphila okude."

Ngale ndlela, u-Paulson ukholelwa ukuthi i-algorithm yokufunda komshini ingasheshisa ukuthuthukiswa nokuhlolwa kwezinto zebhethri.“Yisho ukuthi unento entsha, futhi uyijikelezisa izikhathi ezimbalwa.Ungasebenzisa i-algorithm yethu ukubikezela ubude bayo, bese wenza izinqumo zokuthi uyafuna yini ukuqhubeka nokuyijikeleza ngokuyihlola noma cha.”

“Uma ungumcwaningi elebhu, ungathola futhi uhlole izinsiza eziningi ezengeziwe ngesikhathi esifushane ngoba unendlela esheshayo yokuzihlola,” kwengeza u-Babinec.

Iphepha elisekelwe ocwaningweni, "Isici sobunjiniyela bokufunda komshini sinikeze amandla ukubikezela kusengaphambili kwesikhathi sempilo yebhethri,” kuvele ku-inthanethi Feb. 25 edition ye-Journal of Power Sources.

Ngaphandle kukaPaulson noBabinec, abanye ababhali baleli phepha bahlanganisa uJoseph Kubal ka-Argonne, Logan Ward, Saurabh Saxena kanye noWenquan Lu.

Lolu cwaningo luxhaswe yisibonelelo se-Argonne Laboratory-Directed Research and Development (LDRD).