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 lokusebenzisa izinto kanye nomjikelezo. impilo, izindleko zikagesi zingahlolwa zibe yi-0.2 yuan / kWh, ukuthuthukisa ukusetshenziswa kwezomnotho kohlobo olusha lokugcina indawo ebalulekile yobuchwepheshe, "isitoreji samandla kazwelonke u-Chen Man, iphini likanobhala-jikelele we iNational Electric Power Storage Technical Committee kanye nongoti wezobuchwepheshe obusezingeni le-Southern Power Grid, kusho.
Nakuba umsebenzi waseShayina ocwaningweni nasekuthuthukisweni, ekukhiqizeni, ekumiseni izinga, ekukhuthazeni imakethe nasekusetshenzisweni kwemikhiqizo yebhethri ye-sodium-ion usuqhubekela phambili, asikho isibonelo samazwe ngamazwe sokusetshenziswa kobuchwepheshe bebhethri ye-sodium-ion eziteshini zamandla zokugcina amandla amakhulu. .
NgoNovemba 2022, i-Guangxi Power Grid Company, ngokubambisana neSouth 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 uhlelo lukazwelonke. ukhiye wohlelo lokucwaninga nokuthuthukisa iphrojekthi yesihloko esingaphansi esithi "ihora le-100 megawatt-ihora le-sodium-ion yesistimu yebhethri yokugcina amandla okuhlanganiswa kobuchwepheshe kanye nokuboniswa kwesicelo" ucwaningo Bhekana nomsebenzi. "Sigxila ekusebenzeni okuphezulu kokulungiswa kwesikali sikagesi kagesi, ukuhlanganiswa kwesistimu nokuvimbela nokulawula ukuphepha kanye nobunye ubuchwepheshe obubalulekile bokwenza ucwaningo, olwakhiwe ngamalungelo azimele obunikazi bobuhlakani bokulungiswa kwebhethri ye-sodium-ion kanye nobuchwepheshe bokuhlanganiswa kwesistimu," umholi wephrojekthi, I-South China Grid Guangxi Grid Company, isekela lomqondisi woMnyango Wezinto Ezintsha uGao Lik wethulwa.
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 ebanzi yokushisa esebenzayo, ukushaja okusheshayo nokuphindaphindeka okuhle, futhi kungashajwa kuye ku-90% ngemizuzu eyi-12," kusho u-Hu Yongsheng, umcwaningi kulesi sikhungo. I-Institute of Physics, i-Chinese Academy of Sciences.
Njengabahlanganyeli abakhulu bezobuchwepheshe kuphrojekthi, iSouthGrid Energy Storage Company Energy Storage Research Institute ekuhlanganisweni kwesistimu yokugcina amandla ebhethri ye-lithium kanye nokuvimbela nokulawula ukuphepha emkhakheni inokuhlangenwe nakho okuningi kocwaningo, yenza ucwaningo olubalulekile lukazwelonke nohlelo lwentuthuko " i-lithium-ion battery energy storage system umjikelezo wokuphila ukusetshenziswa 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 angama-88, aqaphela "ukuxhumana okukodwa kuya komunye" amaqoqo ebhethri, kuyilapho ukwakheka okungokwesiko okusabalalisiwe kwesistimu yokugcina amandla e-lithium-ion kudinga kuphela ukuhlanganisa iziguquli ezingaphezu kuka-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%, kuyilapho amabhethri e-lithium ngokuvamile angaphansi kuka-90%, okulindeleke ukuthi agcwalise futhi athathe indawo yamabhethri e-lithium ngokuphumelelayo, futhi asetshenziswe ekugcinweni kwamandla kagesi omkhulu we-electrochemical, izimoto zikagesi, imishini yokwakha kanye neminye imikhakha.
Mayelana nokuvikela 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 izinga eliphezulu lokucima umlilo.
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 esishisayoingilazi fibre 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 bokugcina amandla e-sodium ukukhuthaza ukuthuthukiswa kwezici zomunye nomunye ngokusobala, le sethi yocwaningo lwesistimu yokugcina amandla ebhethri ye-sodium-ion kanye nokucisha umlilo okusebenzayo kwe-nitrogen okusebenzayo, ukupholisa, ubuchwepheshe bokulwa nokubusa ngokusebenzisa amandla ebhethri e-lithium-ion. umjikelezo wokuphila wesistimu yesitoreji isicelo sokuguqulwa kobuchwepheshe bokuphepha ku-lithium, ukuvumelanisa kwesistimu yokugcina amandla e-sodium okokuqala ngqa kuhlelo lokusebenza lobunjiniyela, "kusho uLiYongQi.
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 Committee on the imiphumela yephrojekthi yokwenza ukubuyekezwa kokuhlolwa: ubuchwepheshe obuphelele "10 MWh sodium ion battery energy system storage for iziteshi zamandla okugcina amandla kagesi" ithuthukiswe ithimba lephrojekthi isezingeni elihamba phambili lamazwe ngamazwe.
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