Tsis ntev los no, Tuam Tshoj thawj lub chaw tsim hluav taws xob loj sodium-ion roj teeb - Volin sodium-ion roj teeb lub chaw tsim hluav taws xob tau muab tso rau hauv kev ua haujlwm hauv Nanning, Guangxi. Qhov no yog lub teb chaws txoj kev tshawb fawb tseem ceeb thiab kev txhim kho "100 megawatt-teev sodium-ion roj teeb lub zog cia thev naus laus zis" qhov project ua qauv qhia ntawm thawj theem ntawm qhov project, qhov loj me ntawm 2.5 megawatts / 10 megawatt-teev.
Lub chaw fais fab tau nqis peev thiab tsim los ntawm Guangxi Power Grid Company ntawm Southern Power Grid, thiab qhov loj ntawm theem no yog 10 MWh. Tag nrho qhov loj ntawm qhov project yuav ncav cuag 100 MWh, uas tuaj yeem tsim tau 73 lab degrees ntawm hluav taws xob huv txhua xyoo, Lub chaw fais fab tau nqis peev thiab tsim los ntawm Guangxi Power Grid Company ntawm Southern Power Grid, thiab qhov loj ntawm theem no yog 10 MWh. Tag nrho qhov loj ntawm qhov project yuav ncav cuag 100 MWh, uas tuaj yeem tsim tau 73 lab degrees ntawm hluav taws xob huv txhua xyoo, txo cov pa roj carbon dioxide los ntawm 50,000 tonnes, thiab ua tau raws li qhov xav tau hluav taws xob ntawm 35,000 tus neeg siv nyob hauv tsev.
Piv nrog rau lub roj teeb lithium-ion, "cov kwv tij" sodium-ion roj teeb lub zog khaws cia cov khoom siv raw, yooj yim rau rho tawm, pheej yig, ua tau zoo dua ntawm qhov kub qis, hauv kev khaws cia lub zog loj muaj qhov zoo pom tseeb. "Sodium-ion roj teeb lub zog khaws cia nyob rau hauv qhov ntsuas ntawm theem kev txhim kho, tus nqi ntawm tus nqi tuaj yeem txo tau los ntawm 20% txog 30%, raws li lub hauv paus ntawm kev txhim kho tag nrho cov qauv roj teeb thiab cov txheej txheem, txhim kho tus nqi siv ntawm cov ntaub ntawv thiab lub neej voj voog, tus nqi hluav taws xob tuaj yeem tshawb nrhiav txog 0.2 yuan / kWh, yog los txhawb kev siv nyiaj txiag ntawm hom kev khaws cia tshiab ntawm kev taw qhia tseem ceeb ntawm thev naus laus zis," Chen Man, tus lwm thawj coj ntawm National Electric Power Storage Technical Committee thiab tus kws tshaj lij kev txawj ntse ntawm Southern Power Grid, tau hais.
Txawm hais tias Tuam Tshoj txoj haujlwm hauv kev tshawb fawb thiab kev txhim kho, kev tsim khoom, kev ua tus qauv, kev txhawb nqa kev lag luam thiab kev siv cov khoom siv roj teeb sodium-ion tau ua tiav tag nrho, tsis muaj qhov ua piv txwv thoob ntiaj teb rau kev siv cov thev naus laus zis roj teeb sodium-ion rau cov chaw khaws hluav taws xob loj.
Thaum Lub Kaum Ib Hlis 2022, Guangxi Power Grid Company, ua ke nrog South Grid Energy Storage Company, Lub Tsev Kawm Ntawv ntawm Physics ntawm Suav Academy of Sciences, Zhongkehai Sodium Technology Co., Ltd. thiab lwm chav haujlwm ntawm pab pawg project, tau tshaj tawm lub teb chaws tseem ceeb kev tshawb fawb thiab kev txhim kho qhov project sub-topic "100 megawatt-teev sodium-ion roj teeb lub zog cia system kev koom ua ke thev naus laus zis thiab daim ntawv thov kev ua qauv qhia" kev tshawb fawb Ua tiav txoj haujlwm. "Peb tsom mus rau kev npaj cov khoom siv hluav taws xob ua haujlwm siab, kev koom ua ke thiab kev tiv thaiv kev nyab xeeb thiab lwm yam thev naus laus zis tseem ceeb los ua kev tshawb fawb, tsim nrog cov cai ywj pheej ntawm kev npaj roj teeb sodium-ion thiab kev koom ua ke thev naus laus zis," tus thawj coj project, South China Grid Guangxi Grid Company, tus lwm thawj coj ntawm Department of Innovation Gao Lik tau qhia.
Lub roj teeb muaj peev xwm loj yog lub hauv paus tseem ceeb ntawm tag nrho cov roj teeb sodium-ion khaws cia lub zog. Tom qab ib xyoos thiab ib nrab ntawm kev tshawb fawb, pab pawg neeg ua haujlwm tau tsim lub roj teeb sodium-ion khaws cia lub zog thawj zaug hauv ntiaj teb uas siv tau ntev, thaj chaw kub dav, thiab muaj kev nyab xeeb siab 210Ah. "Los ntawm qhov kev ua tau zoo, peb hom roj teeb sodium-ion muaj qhov zoo ntawm thaj chaw kub ua haujlwm dav, them sai thiab muaj ntau yam zoo, thiab tuaj yeem them tau txog 90% hauv 12 feeb," Hu Yongsheng, tus kws tshawb fawb ntawm Lub Tsev Kawm Ntawv Physics, Chinese Academy of Sciences hais.
Ua cov neeg koom nrog tseem ceeb hauv qhov project, SouthGrid Energy Storage Company Energy Storage Research Institute hauv lithium roj teeb lub zog cia system kev koom ua ke thiab kev tiv thaiv thiab tswj kev nyab xeeb hauv daim teb muaj kev paub txog kev tshawb fawb ntau heev, ua lub teb chaws tseem ceeb tshawb fawb thiab kev txhim kho program "lithium-ion roj teeb lub zog cia system lub neej voj voog daim ntawv thov ntawm kev nyab xeeb technology". "Txawm hais tias cov ntsiab cai ntawm sodium thiab lithium roj teeb zoo sib xws, kev tsim kho ntawm lub zog cia system tiav uas sib xyaw cov yam ntxwv ntawm kev them thiab tso tawm ntawm sodium roj teeb yuav tsum kov yeej ntau yam teeb meem tshiab," Li Yongqi, tus kws tshaj lij ntawm SouthGrid Energy Storage Company, hais nrog kev xav.
Piv txwv li, pab pawg neeg ua haujlwm tau tsim kho tshiab los siv cov qauv khaws cia hluav taws xob faib raws li cov roj teeb sodium-ion siab, thiab tag nrho lub kaw lus koom ua ke 88 lub converters modular, ua tiav "ib-rau-ib qho kev sib raug zoo" nrog cov pawg roj teeb, thaum cov qauv faib tawm ib txwm ntawm lub kaw lus khaws cia hluav taws xob lithium-ion tsuas yog xav tau kev koom ua ke ntau dua 40 lub converters. Lub hom phiaj tam sim ntawd ntawm kev ob npaug ntawm cov converters yog kom nce qhov muaj peev xwm thiab kev hloov pauv hluav taws xob zoo. Tag nrho cov txiaj ntsig hloov pauv hluav taws xob ntawm lub kaw lus khaws cia hluav taws xob roj teeb sodium no yog ntau dua 92%, thaum cov roj teeb lithium feem ntau tsawg dua 90%, uas xav tias yuav ua tiav thiab hloov cov roj teeb lithium zoo, thiab siv rau kev khaws cia hluav taws xob electrochemical loj, tsheb fais fab, tshuab tsim kho thiab lwm yam teb.
Txog kev tiv thaiv thiab tswj kev nyab xeeb, pab neeg tau tsim ib txoj kev tswj hwm thermal rau lub tshuab ua kua txias nrog rau cov txheej txheem tiv thaiv thiab tswj hluav taws rau lub tshuab khaws cia hluav taws xob sodium-ion, xws li module-level thermal barrier thiab high-efficiency fire extinguishing.
Qhov sib txawv ntawm qhov kub ntawm ntau dua 22,000 lub roj teeb sodium hauv tag nrho lub kaw lus raug tswj hwm hauv 3 degrees Celsius. Kev siv ob qho tib si cua sov dissipation thiab thermal runaway barrierDaim pam fiber ntau airgelUa ib yam khoom siv thaiv cua sov ntawm lub hauv paus hluav taws xob, lub roj teeb monomer thermal runaway kis tau lub sijhawm los ntawm 30 feeb mus rau 2 teev, ntev mus txog 4 zaug, zoo heev txhim kho kev nyab xeeb ntawm lub roj teeb module.
Cov pab pawg tau tsim cov kua nitrogen uas tua hluav taws, txias, thiab tiv thaiv kev tsis lees paub, muaj peev xwm tua hluav taws thawj zaug hauv 5 vib nas this, ua tau 24 teev yam tsis rov qab hlawv thiab tawg. "Cov thev naus laus zis cia hluav taws xob lithium thiab sodium tam sim no los txhawb kev txhim kho ntawm ib leeg tus yam ntxwv pom tseeb, cov txheej txheem khaws cia hluav taws xob sodium-ion roj teeb no tshawb fawb thiab cov kua nitrogen uas tua hluav taws, txias, thiab tiv thaiv kev tsis lees paub los ntawm cov roj teeb lithium-ion lub neej voj voog siv cov thev naus laus zis kev nyab xeeb hloov pauv daim ntawv thov hauv lithium, sodium lub zog cia system synchronization thawj zaug hauv daim ntawv thov engineering," LiYongQi hais.
Lub Ib Hlis 28, 2024, los ntawm Suav Academy of Engineering Jiang Jianchun tus kws tshawb fawb, Suav Academy of Sciences, Cheng Shijie tus kws tshawb fawb, Zhang Yue tus kws tshawb fawb, European Union Academy of Sciences Sun Jinhua tus kws tshawb fawb thiab lwm tus kws tshaj lij ntawm Tuam Tshoj Machinery Industry Federation Appraisal Committee ntawm cov txiaj ntsig ntawm qhov project los ua qhov kev tshuaj xyuas ntawm qhov kev ntsuam xyuas: tag nrho cov thev naus laus zis ntawm "10 MWh sodium ion roj teeb lub zog cia system rau hluav taws xob lub zog cia chaw nres tsheb fais fab" tsim los ntawm pab pawg project yog nyob rau theem thoob ntiaj teb ua tus thawj coj.
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