Abaphandi abavela kwiIYunivesithi yaseMunich(I-tum) kwayeIYunivesithi yaseRWTH AUSDENEJamani bathelekise ukusebenza kombane kweebhetri ze-sodium enamandla (i-SIBS) ye-Lithium ye-Lithium-ye-Lithium ye-Lithium-ye-Ion-Ion-Ion-i-ion-i-iron-phose-phose.

Iqela lafumanisa ukuba i-proces kunye neqondo lokushisa linempembelelo ephezulu yokunganyangeki kwe-pulse kunye nokunyanzelwa kweenkqubo zoyilo kunye neenkqubo zokulawulwa kwe-bibs ukwenza umsebenzi onobunkunkqele, ngakumbi kumanqanaba asezantsi.

• Ukucacisa ukunyangwa kwepulse Ke ngoko, uphando lubonisa ukuba ibhetri yesodium-i-ion ichatshazelwe kwinqanaba lamaxabiso kunye neqondo lokushisa kunebhetri ye-lithium-ion.

Uphando:

"I-Sodium-ion [i-Sibs] ibonwa njengendawo yokuphelisa i-LAG," izazinzulu zatsho. Nangona kunjalo, umahluko kwi-elektrochemical mores yesodium kunye ne-lithium ifuna i-ascoves kwi-anode kunye ne-thehode.

Baye bachaza ukuba umsebenzi wabo ulungiselelwe ukugcwalisa umsantsa kuphando, njengoko kusekho ulwazi malunga nokuziphatha kombane kwi-SIBS malunga nobushushu obukhawulezileyo kunye neendleko zemeko yombuso (i-COSTER).

Iqela lophando eliqhutywa, ngakumbi, imilinganiselo yentsebenzo yombane kumaqondo obushushu asusela kwi-10 degrees c ukuya kwiseli epheleleyo kumaqondo ahlukeneyo kwi-25 c.

"Ngaphezu koko, saphanda ngempembelelo yeqondo lobushushu kunye ne-SOOT kwi-Corenting yangoku (R DC) kunye ne-Ecvanostic Electrochetic Spectroscopy (Geis)," ichaziweyo. "Ukuhlolisisa amandla anokusetyenziswa, amandla anokusebenza, kunye nokusebenza kwamandla phantsi kweemeko ezinamandla, senze uvavanyo lokufumana amandla ngokusebenzisa amaxabiso ahlukeneyo omthwalo kubushushu obahlukeneyo."

Abaphandi balinganisa ibhetri ye-lithium-ion, ibhetri ye-sodium-ion ene-nickel-manganese-intsimbi yentsimbi, kunye nebhetri ye-ion-ion-ion-ion ene-lfp ye-lfp ye-lfp. Zonke ezintathu zibonise i-voltageng hysteresis, ezithetha ukuba i-voltage yabo yesekethe yahlukile phakathi kokutshaja nasekuqhubeleni.

"Okubangela umdla kukuba, ngenxa yeSibes, i-hysteris ivela kwiSods esezantsi, eyokwemilinganiselo ye-hard-carling, mhlawumbi ngenxa yecarbon enzima," abagxininiswa. "I-R DC kwaye inyanzelo lomdlalo omncinci kakhulu kwi-SOS. Ngokwahlukileyo, i-SIBS, i-RD, i-R DC kwaye inyathela i-SOSS inexabiso eliphantsi kwaye liyibambe."

Ngaphezu koko, baqinisekisile ukuba ubushushu baxhomekeke kwi-R_DC kunye neMedity bulungile kwi-sibs kune-LIBS. "Iimvavanyo ze-LAL azibonisi impembelelo ebalulekileyo ye-SOO kwi-ofisi esebenzayo yokujikeleza.