Abaphandi abavela kwiIYunivesithi yaseMunich(I-tum) kwayeIYunivesithi yaseRWTH AUSDENEJamani sele kuthelekiswa nokusebenza kombane kweebhetri ze-sodium enamandla (i-SIBS) kwi-Lithium ye-Lithium ye-Lithium-ye-Artium-i-Ion-ion-ion-ion-i-lithium-phode (i-LFP) i-phothode .

Iqela lafumanisa ukuba i-proces kunye neqondo lobushushu linempembelelo ephezulu yokunganyangeki kwe-pulse kunye nokunyanzela i-SIBS kune-CEBS kune-CEBSS, ebonisa ukuba i-SIBS ifuna ukuba i-procesmed Ukusebenza, 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 yokuziphatha kwesodium kunye ne-lithium ifuna i-ascoves kwi-anode kunye ne-canode. Ngelixa i-lithium-i-liium-ion] idla ngokuba igrafu isetyenziswa njengezinto ezibonakalayo, kuba i-Sibs carbon ibonwa njengeyona nto ithembisayo ye-sibs. "

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 kunye ne-Constage evulekileyo kwi-screen epheleleyo kunye neeseli ezihambelana ne-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 inyanzelekile ukuba iLizwe loBoniso lokuxhomekeka kwiSOS. Ngokwahlukileyo koko, ngenxa yeSibs, i-MBS, i-R DC kwaye inyathela inyuka kakhulu kwi-30%, ngelixa i-SOSP ephezulu inefuthe eliphezulu kwaye ikhokelela kwixabiso le-DC le-DC kunye nexabiso lokuxabisa. "

Ngaphezu koko, baqinisekisile ukuba ubushushu baxhomekeke kwi-R_DC kunye neMedity bulungile kwi-sibs kune-LIBS. "Iimvavanyo ze-LAL azibonisi impembelelo ebalulekileyo ye-SOS kwi-ofisi esebenzayo yokujikeleza. Ngokwahlukileyo, ukuhamba ngebhayisikile kwiipesenti ezingama-50 ukuya kwi-100% ye-100% inokunciphisa ilahleko yokusebenza ngaphezulu kwesiqingatha esithelekiswa nokuhamba nge-0%, iphawuleka ngakumbi i-Sibs ikhula kakhulu xa ihamba ngebhayisikile kwiiseli kwi-A Uluhlu oluphezulu lweCandelo luthelekiswa nenqanaba elisezantsi.