Cov kws tshawb nrhiav los ntawm covTechnical University of Munich(Tum) thiabRWTH Aachen UniversityNyob rau hauv lub teb chaws Yelemees tau muab piv rau kev ua haujlwm hluav taws xob uas muaj hluav taws xob siab (cov roj teeb uas muaj hluav taws xob Cov.

Pab pawg tau pom tias lub xeev-them thiab ntsuas kub muaj ntau dua ntawm cov pulse tsis kam thiab qhia cov kev tsim tawm thiab cov kab ke ntawm kev ua kom tau zoo kev ua tau zoo, tshwj xeeb ntawm cov qib qis.

• Txhawm rau piav cov mem tes tiv taus ntxiv: Lo lus hais txog ntau npaum li cas lub roj teeb hluav taws xob poob thaum lub zog xav tau thaum lub zog tam sim ntawd yog thov. Yog li ntawd, kev tshawb fawb qhia tau tias sodium-ion roj teeb muaj ntau dua los ntawm kev them qib thiab kub tshaj lithium-ion roj teeb.

Kev Tshawb Fawb:

"Sodium-ion Cov roj teeb roj teeb [NQI] feem ntau pom tias yog kev hloov chaw rau kev hloov rau lobs," cov kws tshawb fawb tau hais tseg. "Txawm li cas los xij, qhov sib txawv, cov sib txawv ntawm cov kev coj ua hluav taws xob ntawm sodium thiab lithium yuav tsum tau adapions ntawm ob lub anode thiab catode. Thaum lub sij hawm rau cov roj teeb lithium-ion)

Lawv kuj tau piav qhia tias lawv txoj haujlwm tau npaj los sau qhov sib txawv hauv cov kev tshawb fawb txog hluav taws xob, raws li tseem muaj kev sib txawv ntawm kev sib txawv thiab lub xeev (soc.cs).

Pab pawg tshawb fawb tau ua, tshwj xeeb, kev ntsuas hluav taws xob ntawm cov ntsuas hluav taws xob ntawm cov ntsuas hluav taws xob ntawm cov xov tooj ntawm 25 c Cov.

"Tsis tas li ntawd, peb tshawb nrhiav qhov ntawm qhov kub thiab so ntawm ob qho kev tawm tsam tam sim no (R DC) thiab galvanostatic electrochemical (galvanostatic electrochemy (gali)," nws tau teev tseg. "Los tshuaj xyuas qhov siv tau muaj peev xwm, siv hluav taws xob siv hluav taws xob, peb tau ua haujlwm muaj peev xwm ua tau los ntawm kev thov cov nqi sib txawv ntawm cov kub."

Cov kws tshawb fawb ntsuas ntsuas cov roj teeb lithium-ion, ion roj teeb nrog lub roj teeb uas muaj npib tsib xee-manganese-hlau cathode nrog LFP Cathode. Tag nrho peb cov khoom siv voltage hysteresis, txhais tau hais tias circuit-circuition voltage txawv ntawm them thiab rho tawm.

"Qhov ntxim nyiam, rau cov tsiaj, lub hystereses yog feem ntau tshwm sim ntawm kev ntsuas qis, uas yog, raws li lub zog carbon anode," Cov kev kawm tau hais meej. "Tus R DC thiab Impedance ntawm Lib pom tias kev vam meej me me ntawm SOF. Hauv kev sib piv, rau cov kab, tus R DC thiab impedance nce ntxiv ntawm cov tog hauv qab 30%, ua rau qis dua r dc thiab cuam tshuam qhov tseem ceeb. "

Ntxiv mus, lawv tau paub tias kev vam khom kub ntawm R_DC thiab kev yuam yog rau cov nqi sib npaug. "Cov lib sim tsis qhia tus kabmob muaj txiaj ntsig tseem ceeb ntawm kev so ntawm kev sib tw sib tw. Hauv kev sib piv, caij tsheb kauj ruam ntawm 50% txog 100% mus txo cov kev ua kom muaj txiaj ntsig los ntawm cov neeg caij tsheb kauj vab los ntawm cov neeg ua kom zoo dua thaum caij tsheb kauj vab hauv a Cov nyiaj nrawm nrawm piv rau kev nce qib hauv qab.