Muva nje, isiteshi samandla esigcina amandla ebhethri ye-sodium-ion sokuqala esikhulu sase-China – i-Volin sodium-ion battery energy storage power station siqalise ukusebenza eNanning, e-Guangxi. Lolu wuhlelo lukazwelonke oluyisihluthulelo locwaningo nentuthuko “ihora le-100 megawatt-hora ye-sodium-ion battery energy storage technology” iphrojekthi yokubonisa yesigaba sokuqala salo msebenzi, usayizi ofakiwe wamamegawathi angu-2.5/10 wama-megawatt-amahora.
Isiteshi sikagesi sitshaliwe futhi sakhiwe yi-Guangxi Power Grid Company of Southern Power Grid, futhi isikali salesi sigaba singu-10 MWh. Isamba esiphelele salo msebenzi sizofinyelela ku-100 MWh, ongakhiqiza amadigri kagesi ohlanzekile ayizigidi ezingama-73 ngonyaka, Indawo yokuphehla ugesi itshalwe futhi yakhiwe yi-Guangxi Power Grid Company of Southern Power Grid, futhi isikali salesi sigaba singu-10 MWh. Isamba sesikali sephrojekthi sizofinyelela ku-100 MWh, ongakhiqiza amadigri ezigidi ezingama-73 kagesi ohlanzekile ngonyaka, ngokufanayo anciphise ukukhishwa kwe-carbon dioxide ngamathani angu-50,000, futhi ahlangabezane nezidingo zikagesi zabasebenzisi abangu-35,000 basezindaweni zokuhlala.
Uma kuqhathaniswa nesitoreji samandla ebhethri ye-lithium-ion, "abafowethu" ibhethri ye-sodium-ion yokugcina amandla okugcina impahla eluhlaza, kulula ukuyikhipha, izindleko eziphansi, ukusebenza okungcono emazingeni okushisa aphansi, ekugcinweni kwamandla amakhulu kunezinzuzo ezisobala. "Isitoreji samandla ebhethri ye-sodium-ion esikalini sesiteji sokuthuthukiswa, izindleko zezindleko zingancishiswa ngo-20% kuya ku-30%, ngaphansi kwesisekelo sokuthuthukisa ngokugcwele ukwakheka kwebhethri nenqubo, ukuthuthukisa izinga lokusetshenziswa kwezinto kanye nempilo yomjikelezo, izindleko zikagesi zingacutshungulwa zibe yi-0.2 yuan / kWh, ukukhuthaza ukusetshenziswa kwezomnotho kohlobo olusha lokugcinwa kwebhethri," kusho unobhala obalulekile we-Chetyn energy storage iNational Electric Power Storage Technical Committee kanye nongoti wezobuchwepheshe obusezingeni le-Southern Power Grid, kusho.
Nakuba umsebenzi weShayina ocwaningweni nasekuthuthukisweni, ekukhiqizeni, ekumiseni izinga, ekugqugquzeleni izimakethe nasekusetshenzisweni kwemikhiqizo yebhethri ye-sodium-ion ususebenza ngokugcwele, asikho isibonelo samazwe ngamazwe sokusetshenziswa kobuchwepheshe bebhethri ye-sodium-ion eziteshini zamandla zokugcina amandla amakhulu.
NgoNovemba 2022, i-Guangxi Power Grid Company, ngokubambisana ne-South Grid Energy Storage Company, i-Institute of Physics of the Chinese Academy of Sciences, i-Zhongkehai Sodium Technology Co., Ltd. kanye namanye amayunithi ethimba lephrojekthi, yethula ngokusemthethweni iphrojekthi eyinhloko yocwaningo nentuthuko yephrojekthi esihlokwana esithi "100 megawatt-hora isicelo sokuhlanganiswa kwebhethri uhlelo lokuhlanganiswa kwebhethri". "Sigxile ekusebenzeni okuphezulu kokulungiswa kwesikali sikagesi, ukuhlanganiswa kwesistimu nokuvikela nokulawula ukuphepha kanye nobunye ubuchwepheshe obubalulekile bokwenza ucwaningo, olwakhiwe ngamalungelo obunikazi obuzimele bokulungiswa kwebhethri ye-sodium-ion kanye nobuchwepheshe bokuhlanganiswa kwesistimu," umholi wephrojekthi, iSouth China Grid Guangxi Grid Company, isekela lomqondisi woMnyango Wezinto Ezintsha uGao Lik wethula.
Iseli yebhethri enamandla amakhulu iyunithi eyisisekelo yalo lonke uhlelo lokugcina amandla ebhethri le-sodium-ion. Ngemva konyaka nengxenye yocwaningo, ithimba lephrojekthi lenze indawo yokuqala yokuphila ende emhlabeni, indawo yokushisa ebanzi, ukuphepha okuphezulu kwebhethri engu-210Ah ye-sodium-ion yokugcina amandla. "Ngokombono wokusebenza, uhlobo lwethu lwebhethri ye-sodium-ion lunobuhle bendawo yokushisa yokusebenza ebanzi, ukushaja okusheshayo nokuphindaphindeka okuhle, futhi kungashajwa kuye ku-90% ngemizuzu eyi-12," kusho u-Hu Yongsheng, umcwaningi e-Institute of Physics, Chinese Academy of Sciences.
Njengabahlanganyeli abakhulu bezobuchwepheshe kule phrojekthi, i-SouthGrid Energy Storage Company Energy Storage Research Institute ekuhlanganisweni kwesistimu yokugcina amandla ebhethri ye-lithium nokuvimbela nokulawula ukuphepha emkhakheni inokuhlangenwe nakho okucebile kocwaningo, yenza uhlelo lukazwelonke olubalulekile locwaningo nokuthuthukiswa "i-lithium-ion battery energy storage system application umjikelezo wokuphila kobuchwepheshe bokuphepha". "Nakuba izimiso zokusabela zamabhethri e-sodium ne-lithium zifana, ukuthuthukiswa kwesistimu yokugcina amandla ephelele ehlanganisa izici zokushaja nokukhipha amabhethri e-sodium kudinga ukunqoba izinselele eziningi ezintsha," kusho uLi Yongqi, uchwepheshe wezobuchwepheshe we-SouthGrid Energy Storage Company, ngomzwelo.
Uma sithatha ukuhlanganiswa kwesistimu njengesibonelo, ithimba lephrojekthi lamukela ngendlela entsha isakhiwo sokugcina amandla esabalalisiwe esisekelwe ku-voltage ephezulu yamabhethri e-sodium-ion, futhi lonke uhlelo luhlanganisa ama-modular converters angu-88, eqaphela "ukuxhumana okukodwa kuya kokukodwa" namaqoqo ebhethri, kuyilapho ukwakhiwa kwendabuko esabalalisiwe kwe-lithium-ion yokuguqula isistimu yokuhlanganisa amandla ngaphezu kwe-40 idinga kuphela i-40. Inhloso esheshayo yokuphinda kabili inani leziguquli ukukhulisa ukutholakala kwamandla nokusebenza kahle kokuguqulwa kwamandla. Ukusebenza kahle kokuguqulwa kwamandla kwalolu hlelo lokugcina amandla ebhethri ye-sodium kungaphezu kuka-92%, kanti amabhethri e-lithium ngokuvamile angaphansi kuka-90%, okulindeleke ukuthi agcwalise futhi athathe indawo yamabhethri e-lithium ngokuphumelelayo, futhi asetshenziswe endaweni yokugcina amandla kagesi we-electrochemical, izimoto zikagesi, imishini yokwakha kanye neminye imikhakha.
Ngokuqondene nokuvimbela nokulawula ukuphepha, ithimba lenze isu lokulawula ukushisa kwesistimu yokupholisa uketshezi kanye nesethi ephelele yokuvimbela umlilo nokulawula ubuchwepheshe besistimu yokugcina amandla ebhethri ye-sodium-ion, njenge-module-level thermal barrier kanye nokucima umlilo okusebenza kahle kakhulu.
Umehluko wezinga lokushisa phakathi kwamaseli ebhethri ye-sodium angaphezu kuka-22,000 ohlelweni lonke ulawulwa ngaphakathi kuka-3 degrees Celsius. Ukusetshenziswa kokubili kokukhipha ukushisa kanye nesithiyo sokubaleka esishisayoglass fiber airgel blanketnjengento yokuvimbela ukushisa okushisayo phakathi komgogodla kagesi, isikhathi sokusabalalisa se-monomer esishisayo sebhethri kusuka kumaminithi angu-30 kuya emahoreni angu-2, enwetshwe izikhathi ezingu-4, kuthuthukisa kakhulu ukuphepha kwemodyuli yebhethri.
Ithimba lenze ubuchwepheshe bokucima umlilo obusebenza kahle be-nitrogen obuwuketshezi, obupholile, obunqanda ukubusa, obukwazi ukucisha umlilo webhethri wokuqala phakathi nemizuzwana emi-5, ukwenza amahora angama-24 ngaphandle kokuvutha kabusha nokuqhuma. "I-lithium yamanje kanye nobuchwepheshe be-sodium yokugcina amandla ukukhuthaza ukuthuthukiswa kwezici zomunye nomunye ezisobala, le sethi yocwaningo lwesistimu yokugcina amandla ebhethri ye-sodium-ion kanye nokucisha umlilo okusebenzayo kwe-nitrogen ephumelelayo, ukupholisa, ubuchwepheshe bokulwa nokubusa ngokusebenzisa i-lithium-ion yebhethri yesitoreji samandla esistimu yomjikelezo wokuphila wesicelo sokuguqulwa kobuchwepheshe bokuphepha ku-lithium, ukuvumelanisa uhlelo lokugcina amandla e-sodium okokuqala ngqa ohlelweni lobunjiniyela," kusho uLiYongQ.
Januwari 28, 2024, yi-Chinese Academy of Engineering uJiang Jianchun academician, Chinese Academy of Sciences, Cheng Shijie academician, Zhang Yue academician, European Union Academy of Sciences Sun Jinhua academician kanye nabanye ochwepheshe China Machinery Industry Federation Appraisal Committee ngemiphumela yephrojekthi ukwenza ukubuyekezwa kokuhlolwa: uchwepheshe jikelele wesistimu yokugcina amandla e-sodium engu-100 MWh ithuthukiswe ithimba lephrojekthi isezingeni elihamba phambili lamazwe ngamazwe.
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