Sodium -Ion roj teeb Cells Twb tau nyob ze lithium-Ion Tus nqi sib piv, Teeb kom pheej yig dua
Jan 14, 2026
Txhua lub thev naus laus zis txhawm rau sib tw nrog lithium -Ion roj teeb (LIBs) ntsib qhov kev sib tw ntawm cov nqi poob qis rau qhov kev siv thev naus laus zis uas twb muaj lawm. Raws li LIBs txuas ntxiv nthuav lawv txoj kev lag luam kev lag luam, sodium - ion roj teeb (SIBs) tseem tos lawv lub sijhawm ci.
Txawm li cas los xij, txoj kev tshawb fawb tshiab coj los ntawm cov kws tshawb fawb ntawm Finland's LUT University, hauv kev koom tes nrog Lub Tebchaws Yelemees Karlsruhe Institute of Technology thiab Spain's University of Alcalá, pom tias, txawm tias SIBs tseem tsis tau ua tiav kev ua lag luam thoob plaws, lawv cov hlwb twb dhau los ua tus nqi sib npaug nrog LIBs.
"Sodium-ion batteries (SIBs) are not yet in full roll-out for electric vehicle applications, as energy density remains a limiting factor. While SIBs are already cost-competitive with lithium-ion batteries (LIBs), their gravimetric energy density still lags behind. This gap may close once solid-state SIBs enter kev ua lag luam, "Dominik Keiner, cov kws tshawb fawb qib qis ntawm LUT Lub Tsev Kawm Ntawv ntawm Lub Zog Hluav Taws Xob, qhia ESS News.
Txawm li cas los xij, thawj cov khoom siv hluav taws xob ua lag luam - teev cov roj teeb lub zog cia cov chaw tam sim no tau tsim thiab ua haujlwm, suav nrog cov phiaj xwm ntawm 100 MWh nplai. "Qhov no qhia tau hais tias SIBs yog nyob rau verge ntawm tag nrho - teev kev lag luam nkag. Thaum muab cov saw hlau tau tsim thiab kev lag luam ntawm cov nplai siv tau, tsis muaj dab tsi tseem ceeb los tiv thaiv sodium - ion roj teeb los ntawm kev ua lag luam tag nrho, yog tias LIB lock -ins uas twb muaj lawm yog tswj tau," nws hais.
Thaum cov kev ntsuam xyuas yav dhau los tau los txog cov txiaj ntsig tsis sib haum xeeb txog SIBs kev lag luam kev sib tw, thiab ua rau muaj peev xwm cuam tshuam ntawm SIB ntawm kev siv hluav taws xob ntau yam tsis tau tshawb nrhiav, txoj kev tshawb fawb tshiab tau sib xyaw ua ke hauv qab - tus qauv tsim nqi suav nrog kev txhim kho yav tom ntej ntawm cov khoom siv rau SIB nrog lub ntiaj teb lub zog qauv qauv mus txog xyoo 2050.
Cov txiaj ntsig tau pom tias nrog kev txhim kho tus nqi tsis ntev los no thiab kev kawm nkhaus, cov roj teeb tsis yog tus nqi ntxiv lawm - cov khoom tseem ceeb hauv lub zog hluav taws xob nrog kev siv hluav taws xob ua haujlwm - nplai roj teeb lub cev capex ntawm € 28.5–51.9 / kWh los ntawm 2050. Nyob ze tus nqi sib npaug niaj hnub no, SIB muaj peev xwm ua tau zoo dua LIB ntawm lub sijhawm luv luv rau cov nqi thiab yog cov nqi qis dua.
Ua ib tug li-hu ua poob- hauv thev naus laus zis, sodium- ion roj teeb (SIBs) tuaj yeem tsim los ntawm cov lithium roj teeb uas twb muaj lawm - ion roj teeb (LIB) cov kab ntau lawm nrog tsuas yog hloov kho me me xwb. Raws li qhov tshwm sim, kev txhawj xeeb txog kev tsis txaus los yog tus nqi nce siab tau txo qis, vim tias muaj kev cuam tshuam hauv LIB cov khoom tuaj yeem ua rau muaj kev hloov pauv mus rau SIB, cov kws tshawb fawb sau tseg.
Tsis tas li ntawd, txoj kev tshawb nrhiav pom tias cov nqi roj teeb qis feem ntau yog tsav lub roj teeb muaj peev xwm ntau dua li kev siv hnub ci PV ntxiv. Zuag qhia tag nrho, lub zog hluav taws xob cov qauv tseem tsis hloov pauv ntau, nrog kev sib koom ntawm cov hnub ci photovoltaics, txawm hais tias lub roj teeb muaj peev xwm ua kom muaj zog ntau dua - mus rau -X cov txheej txheem nyob rau hauv nce load. Nyob rau hauv cov ntsiab lus no, electrochemical zog cia tsis yog ib qho kev txwv rau kev hloov hluav taws xob thoob ntiaj teb. Raws li, txoj kev tshawb fawb tej yaam num uas muaj peev xwm tshaj plaws nyob rau hauv lub roj teeb xav tau tshaj tawm rau hnub tim - xws li los ntawm 67.9 mus rau 106.5 TWh los ntawm 2050 - tshaj qhov kwv yees los ntawm yav dhau los tus nqi - optimized zog soj ntsuam system.
"In summary, in terms of cost and performance, SIBs are already mature and can even outperform LIBs in certain aspects, such as operational temperature range. Energy density remains the final hurdle, but cost parity has already been reached. Outperforming LIBs at scale depends primarily on the establishment of robust supply routes – a matter of time and investment," Keiner says.
Los ntawm 2050, tus nqi ntawm kev khaws cia (LCOS) tau kwv yees kom qis dua rau sodium- ion roj teeb uas muaj kev kawm siab tshaj rau lithium- ion roj teeb uas muaj cov nqi kawm qis, nrog rau ob qho tib si cov ntaub ntawv siv tau zoo, thiab qis dua - cov nqi scenarios kuj tseem muaj lub zog siab dua - tus lej sib piv {5}.
"Saib mus rau 2050, peb kwv yees tus nqi ntawm kev khaws cia (LCOS) mus rau thaj tsam ntawm 11.2–13.6 €/MWh hauv MIN-Sh scenario (SIBs nkaus xwb, nrog rau kev kawm siab) mus rau 15.8–22.1 €/MWh hauv MAX{6} tsuas yog kev kawm qis). Kev sib piv, peb LUT-LitRef cov ntaub ntawv siv scenario muab 19.5–29.4 €/MWh cov nuj nqis no suav nrog cov nqi sib txuas (zoo tib yam rau SIBs thiab LIBs) tab sis tsis suav nrog cov nqi hluav taws xob tshwj xeeb, qhov qis dua - tus nqi scenarios kuj muaj zog dua {7 h{15} (14}). vs. 4–6 h), thaum tus naj npawb ntawm tag nrho cov voj voog tseem siab nyob rau txhua kis (300+)," Keiner hais.
