Ci gaban da aka samu a cikin motocin lantarki da na'urorin lantarki masu ƙarfi ya ƙara yawan buƙatar batirin lithium ion mai caji mai sauri. Duk da haka, batirin lithium ion mai caji na yanzu yana fama da lalacewar wutar lantarki mai tsanani yayin da ake amfani da shi wajen caji cikin sauri kuma yana iya haifar da mummunan lalacewa, wanda ke haifar da haɗarin tsaro. Wannan galibi ya samo asali ne daga rashin daidaiton lantarki a mahaɗin anode-electrolyte, wanda ke haifar da taruwar ƙarfe lithium mai cutarwa a saman batirin da kuma rashin kwanciyar hankali na zafi.
A cikin 'yan shekarun nan, kayan anode masu ƙarfin lantarki sun zama madadin da ke da matuƙar kyau don hana yawan ajiyar lithium da kuma samar da yadudduka masu ƙarfi na electrolyte interphase (SEI). Duk da waɗannan ƙarfin, kayan zamani har yanzu suna da iyaka ta hanyar rashin gamsuwa da ionic conductivity da kwanciyar hankali na thermal, wanda ke raunana fitarwa da aminci na dogon lokaci.
A cewar rahotannin kafofin watsa labarai na ƙasashen waje, domin magance waɗannan matsalolin, wata ƙungiyar bincike ƙarƙashin jagorancin Mataimakin Farfesa Dongwok Han a Jami'ar Kimiyya da Fasaha ta Ƙasa ta Seoul ta ƙirƙiro wani abu mai kama da lithium titanium phosphate anode wanda ba shi da tsari (OS) tare da tsarin NASICON. Wannan kayan sananne ne saboda kwanciyar hankali na tsari da zafi. Tsarin zai iya haifar da sauye-sauyen yanayi a ƙarƙashin saman ƙwayoyin halitta masu aiki don karya ƙa'idodin motsi da kuma cimma ingantaccen aiki mai sauri.
An buga sakamakon binciken da ya dace a cikin mujallar Advanced Functional Materials.
Daidaita Fuskar Sama don Sufurin Ion Mai Sauri
Lithium titanium phosphate (LTP) yana da tsarin sodium-super-ionic-conductor (NASICON), wanda ke da kyakkyawan kwanciyar hankali na tsari da zafi da kuma hanyoyin watsa lithium-ion cikin sauri. Don amfani da cikakken ƙarfinsa, masu bincike sun ɗauki dabarun ƙira na off-stoichiometric kuma da gangan suka ƙara rabon phosphorus (P) zuwa titanium (Ti). Irin wannan abun da ke cikin rashin titanium yana samar da yankunan titanium phosphate (TPO) kusa da saman barbashi na LTP.
Waɗannan yankuna masu arzikin TPO suna aiki a matsayin hanyoyin motsa jiki masu inganci, suna rage shingen makamashi don jigilar lithium-ion a cikin hanyar sadarwa ta anode-electrolyte da kuma gina hanyoyin canja wurin ion mai sauri kusa da saman barbashi. Bugu da ƙari, haɗin P-O-P mai sassauƙa a cikin tsarin TPO yana ba da sassaucin tsari don daidaitawa da bambancin girma yayin zagayowar caji mai sauri da kuma kare tsarin nau'in NASICON daga lalacewa mai canzawa.
Aiki Mai ƙarfi a ƙarƙashin Yanayi Mai Sauri
Saboda haka, a cikin gwaje-gwajen ƙarfin rate-capability, ma'aunin mahimmanci wanda ke kimanta ƙarfin caji mai sauri, anode mai haɗa OS-LTP-carbon (OS-LTP/C) ya riƙe babban ƙarfinsa na farko da kashi 86% a ƙarƙashin ƙimar caji na 10C, yayin da ƙarfin anode mai haɗa LTP/C ya ragu sosai.
Wannan kayan kuma yana ba da kyakkyawan kwanciyar hankali bayan zagayowar sama da 250. Tsarin cikakken tantanin halitta yana nuna kyakkyawan aiki mai kyau da kuma jituwa mai faɗi tare da cathodes mai ƙarfin lantarki mai yawa.
Hanya Mai Faɗi Zuwa ga Batura Mafi Inganci
"Hanyarmu ta ƙirƙiri sabon tsari don ƙirar batirin caji da sauri, kuma ana iya amfani da shi sosai ga tsarin adana makamashi da yawa a nan gaba, gami da batirin yanayin mai ƙarfi," in ji Han. "Wannan dabarar ƙira za ta iya sa motocin lantarki su zama masu amfani ta hanyar rage lokacin caji, inganta aminci da bayar da tallafi ga hanyoyin samar da wutar lantarki mai sabuntawa."
A ƙarshe, wannan dabarar ƙira ta off-stoichiometric ta magance ɗaya daga cikin manyan matsalolin da batirin da za a iya caji ke fuskanta kuma tana ba da kyakkyawar hanya ga fasahar adana makamashi mai sauri-sauri da aka shirya don kasuwanci.
Lokacin Saƙo: Agusta-07-2026