Amabhethri anamandla kagesi aphezulu okugcinwa kwamandla asebenza ngama-voltage angaphezu kuka-100V, ngokuvamile asukela ku-300V kuya ku-800V, futhi aletha ukusebenza kahle okuphakeme uma kuqhathaniswa nezinye{3}}zamandla kagesi aphansi. Inzuzo eyisisekelo ilele ku-electrical physics: i-voltage ephezulu inciphisa ukusebenza kwamandla afanayo, okunciphisa ukulahleka kwamandla ohlelweni lokujikeleza futhi kuthuthukise ukusebenza kahle- kohambo.
I-Physics Engemuva Kokusebenza Okuphakeme
Ubudlelwano phakathi kwe-voltage, yamanje, namandla bulandela isibalo P=U × I. Kunoma iyiphi imfuneko yamandla enikeziwe, ukukhuphuka kwamandla kagesi kunciphisa amandla amanje. Lobu budlelwano obuphambene budala inzuzo enkulu kulo lonke uhlelo lokugcina amandla.
Amanje aphansi asho ukunciphisa ukulahlekelwa okuphikisayo kumakhondakta. Uma ugesi ugeleza ezintanjeni, amandla athile aguqulela ekushiseni ngokusekelwe ekulahlekeni kwe-I²R{1}}lapho okwamanje kuyisikwele. Isistimu{3}ephezulu yevoltage esebenza ku-400V ene-25A ithola ukulahlekelwa okuphansi kakhulu kunesistimu engu-48V edinga u-208A wokukhipha amandla afanayo angu-10kW. Ukushisa okukhiqizwa kwehla nge-factory engu-69 ngokusekelwe ekwehliseni kwamanje kuphela.
Ukusebenza kahle kokuguqulwa kwamandla kuba ngcono kakhulu ngezakhiwo zamandla kagesi aphezulu. Kumasistimu okuhlala esitoreji selanga, amabhethri{1}}angu-48V aphansi adinga ama-inverter ehlise ugesi we-DC kumaphaneli elanga, ngokuvamile asebenza ku-360V ukuya ku-500V kumasistimu esigaba esisodwa-. Lokhu kuguqulwa kwamandla kagesi kwethula ukulahlekelwa okungu-5-8%. Amabhethri{10}aphezulu{10}anamandla kagesi asusa iningi lalesi{12}imfuneko yokwehla. I-AlphaESS SMILE-Isistimu ye-G3 ibonisa le nzuzo, ifinyelela cishe u-5% osebenza kahle kakhulu kunamasistimu we-48V aqhathaniswayo. Ngokuhamba ngebhayisikili kwebhethri elingu-8 kWh nsuku zonke, le nzuzo yokusebenza kahle ihumusha ku-146 kWh kagesi olondolozwa minyaka yonke-owanele ukunika amandla isiqandisi izinyanga ezine.
I-Energy Density Izinzuzo zamabhethri Anamandla Kagesi Aphezulu Esitoreji Samandla
Ukuminyana kwamandla kumele inani lamandla agcinwe ngeyunithi ngayinye yesisindo noma ivolumu. Amabhethri kagesi aphezulu azuza ukuminyana okukhulu kwamandla ngokwakhiwa kwawo kagesi esikhundleni sekhemistri yodwa.
Ifomula yokuminyana kwamandla ihlanganisa i-voltage ngokuqondile: Ukuminyana kwamandla=(I-Voltage × Capacity) / (Isisindo noma Ivolumu). Ngokusebenza ngama-voltage aphezulu, amabhethri angagcina amandla engeziwe ngaphakathi kwezingqinamba zomzimba ezifanayo. Amabhethri esimanje e-lithium-ion okugcina amandla afinyelela ukuminyana kwamandla okungaba ngu-300 Wh/kg ngo-2024, inani eliqhubeka lithuthuka njengoba abakhiqizi belungiselela ukusebenza kwamandla kagesi aphezulu.
Lokhu kusebenza kahle kwesikhala kubaluleke kakhulu ekufakweni kwesikali segridi-. Isitoreji esingu-1 MWh esisebenzisa{3}amabhethri anamandla kagesi aphezulu sidinga cishe isikhala esingaphansi ngo-30% kunokufakwa{5}}kagesi kagesi olinganayo. Eziteshini ezingaphansi zasemadolobheni noma ukufakwa kwezentengiselwano ophahleni lapho indawo ethengiswayo inevelu ye-premium, lokhu konga kwesikhala kuhumusha ngokuqondile ekusebenzeni kwezomnotho.
Imvelo ye-modular yamasistimu{0}}amandla kagesi aphezulu ithuthukisa ukukala. Izitaki zebhethri zingaxhumeka ochungechungeni ukuze zifinyelele ama-voltage ukusuka ku-204.8V ngamamojula amabili afika ku-512V anamamojula amahlanu, okuvumela amasistimu ukuthi enze isikali sisuka ku-10 kWh ukuze sisetshenziswe endaweni yokuhlala siye ku-100+ kWh kuzinhlelo zokusebenza zezentengiso ngaphandle kokushintsha ngokuyisisekelo isakhiwo.
Amabhethri kagesi aphezulu aletha ukusebenza kahle kwesistimu. Ngenxa yokuthi asebenza ngama-voltage aphezulu, adonsa amandla amancane ukuze akhiqize amandla afanayo. Amabhethri kagesi aphansi, ngakolunye uhlangothi, kufanele aphushe ama-currents aphezulu ukuze afane nalokho okukhiphayo-futhi amanje aphezulu asho amandla engeziwe alahleka njengokushisa, kanye nesidingo sekhebuli ewugqinsi, ebiza kakhulu. Umphumela uba isistimu engasebenzi kahle futhi ebiza kakhulu ukuyifaka.
Amandla Wokushaja Ngokushesha
Isivinini sokushaja sincike ekutheni ibhethri lingawamukela ngokushesha kangakanani amandla, akalwe ngamanani angu-C-. Amabhethri kagesi aphezulu asekela amanani aphezulu e-C-ngenxa yokuncipha kwezidingo zamanje kanye nokuphathwa okungcono kwe-thermal.
Ibhethri elivamile lesitoreji esiphezulu{{0}se-voltage lingashaja ngamanani angu-1C kuya ku-2C, okusho ukushaja komthamo ogcwele kumizuzu engu-30-60. Amanye amasistimu athuthukile afinyelela kumazinga angu-3C. Ezinye{12}zamandla kagesi aphansi ngokuvamile zishaja ngamanani angu-0.5C kuya ku-1C. I-Porsche Taycan, ifakwe isistimu yebhethri engu-800V, ibonisa imithelela engokoqobo-ukuzuza ukushajwa kuka-10-80% cishe emaminithini angu-23 ngenani eliphakeme lokushaja elingu-270 kW. Izimoto ezifanayo ezinamasistimu angu-400V zidinga amaminithi angu-35-45 ukushaja okufanayo.
Ukuhamba kwe-ionic okuphezulu kuma-electrolyte-amabhethri e-voltage aphezulu kwenza lokhu kudluliswa kwamandla okusheshayo. Amasistimu esimanje okuphatha amabhethri alawula ngokucophelela ukushaja ukuze kuvinjwe ukugijima okushisayo ngenkathi kukhuliswa isivinini, futhi{2}}izakhiwo ze-voltage ephezulu zinikeza i-headroom eyengeziwe yamaphrofayela wokushaja anolaka.
Ukushaja okusheshayo kufakazela ukuthi kubaluleke kakhulu ezinhlelweni zokusebenza zokuzinzisa igridi. Uma ukukhiqiza okuvuselelekayo kukhula ngokuzumayo-ngezikhathi zantambama ezinomoya noma izikhathi zasemini libalele{2}eziphakeme-amasistimu ebhethri anamandla kagesi angamunca amandla engeziwe ngokushesha ngaphambi kokuba ama-opharetha egridi anciphise ukukhiqizwa okuvuselelekayo. Kugridi yaseCalifornia, ethembela kakhulu kumandla elanga, amasistimu okugcina amabhethri amunca ngaphezu kuka-6 GW phakathi namahora ashisa kakhulu elanga ehlobo lika-2024, okuvimbela ukumoshwa kwamandla ahlanzekile.
Impilo Enwetshiwe Yokusebenza
Ukonakaliswa kwebhethri kulandela izindlela eziyinkimbinkimbi, kodwa{0}}amasistimu kagesi aphezulu abonisa ukuphila okude okuphakeme ngokusebenzisa izindlela eziningi.
Ingcindezi yokushisa ilulaza izingxenye zebhethri ngokuhamba kwesikhathi. Amasistimu -amandla kagesi aphezulu adala ukushisa okuncane ngesikhathi sokusebenza ngoba ukuncipha kwamanje kusho ukushisisa kwe-I²R okuncane kumakhondatha kanye nokungazweli kwangaphakathi. Ucwaningo lokufakwa kwesikali segridi{3}}luthole ukuthi amabhethri anamandla kagesi aphezulu okugcinwa kwamandla asebenza ezimeni ezifanayo agcine ukugcinwa komthamo okungcono okungu-5-8% ngemva kwemijikelezo engu-3,000 uma kuqhathaniswa nokulingana kwe-voltage ephansi.
Amajika wokushaja{0}}emabhethri{1}}anamandla kagesi aphezulu abonisa amaphrofayili ashelelayo ane-voltage encipha ngaphansi komthwalo. Lokhu kuzinza kunciphisa ukucindezeleka komshini ezintweni ze-electrode ngesikhathi sokufakwa kwe-ion nokukhishwa. Amabhethri e-lithium iron phosphate ekucushweni okuphezulu{4}}kagesi ngokuvamile adlula imijikelezo engu-6,000 kuyilapho egcina u-70% womthamo wangempela. Abanye abakhiqizi manje banikeza iziqinisekiso zeminyaka eyi-10 ezibonisa lokhu kuqina.
Amasistimu okuphatha amabhethri kuzakhiwo{0}}ezinamandla kagesi aphezulu aqoqa idatha eyimbudumbudu eyengeziwe kumabhulokhi angawodwana ngaphakathi kwesitaki sebhethri. Ibhulokhi ngayinye inikela nge-voltage ehlanganiswa nengqikithi ye-voltage yesistimu, futhi amayunithi esimanje e-BMS aqapha izinga lokushisa, i-voltage, namandla ebhulokhi ngayinye. Lokhu kuqapha okuhle{3}okuqinile kunika amandla ukunakekelwa okubikezelwayo futhi kuvimbela ukucekelwa phansi kwendawo ukuthi kuqhubeke ohlelweni.
Izinzuzo Zokufaka Nengqalasizinda
Amanani aphansi amanje kumasistimu{0}}amandla kagesi aphezulu angena abe izinzuzo zokufaka ezingokoqobo ezehlisa isamba sezindleko zobunikazi.
Izidingo zokulinganisa ikhebula ziyehla kakhulu. Amakhodi kagesi adinga ukulinganiswa kwe-conductor ngokusekelwe kumthamo wamanje kanye nokwehla kwamandla kagesi. Isistimu ye-48V ethwele i-200A idinga amakhondatha ekhopha anezindawo eziphambanayo{4}}ezingu-50-70 mm². Isistimu engu-400V ephethe i-24A yamandla afanayo ingasebenzisa amakhondatha angu-10-16 mm². Lokhu kunciphisa usayizi kunciphisa izindleko zethusi ngo-60-70% ekufakweni okufanayo.
Amakhondaktha amancane asho amathreyi ekhebula alula, izakhiwo ezimbalwa zokusekela, nokufakwa kalula ezindaweni eziboshiwe. Izindleko zokufaka zabasebenzi zehla ngokulinganayo-amakhebuli amancane kulula ukuwadonsa emiseleni nokwenza ukunqanyulwa kusheshe.
Ukulinganisa kwe-inverter kuyazuza ekusebenzeni kwamandla kagesi aphezulu. Izingxenye zama-elekthronikhi zikalwe ngama-voltage aphezulu seziye zanda izindleko-ezisebenza kahle njengoba imboni yezimoto zikagesi iqhubekisele phambili isikali sokukhiqiza. I-inverter engu-10 kW edizayinelwe ukusebenza kwe-400V ibiza cishe efana neyakhelwe ukusebenza kwe-48V, kodwa iyunithi{6}}yamandla kagesi aphezulu iphatha imithwalo eshisayo ngempumelelo futhi ngokuvamile ihlanganisa izici zokulawula eziyinkimbinkimbi.
Ukuthambekela ekuthuthukisweni kwe-inverter yezentengiselwano ithanda ngokusobala i-voltage ephezulu. I-inverter ye-SMA ye-Sunny Boy Smart Energy hybrid, ekhishwe ngo-2024, idinga ubuncane besistimu yebhethri engu-90V, ingabandakanyi izinketho{3}}zamandla kagesi aphansi. Lokhu kushintsha komkhakha kubonisa kokubili izinzuzo zobuchwepheshe kanye nokumiswa ngokulingana okungaba ngu-400V njengesisekelo sesitoreji{6}}sesizukulwane esilandelayo.
Igridi-Isikali Esiphezulu Sokusebenza Kwesitoreji Sebhethri
Ukufakwa kwesitoreji samandla amakhulu kukhulisa izinzuzo-zokwakhiwa kwe-voltage ephezulu.
Amasevisi okulawula imvamisa adinga ukuthi amabhethri aphendule ngemizuzwana nje ekungalinganini kwegridi. Amasistimu -amandla kagesi aphezulu ahamba phambili kulezi zinhlelo zokusebenza zokuphendula ngokushesha. Amanje aphansi avumela ukushintsha ngokushesha ngama-electronics wamandla, futhi izici zikagesi zinika amandla amajika okulethwa kwamandla abushelelezi. Ama-opharetha wegridi anxephezela lawa masevisi ngokukhululekile-ukulawula imvamisa kungakhiqiza u-$50,000-$150,000 ngomthamo we-MW ngayinye ngonyaka ezimakethe ezisebenzayo.
Amasevisi e-Ancillary abalelwa ku-63.7% wegridi{1}}yezinhlelo zokusebenza zesitoreji sebhethri ngo-2024, ngokokuhlaziywa kwemakethe. Lezi zinsizakalo zihlanganisa ukwesekwa kwamandla kagesi, isinxephezelo samandla asebenzayo, kanye nekhono lokuqalisa elimnyama kulandela ukucisha kwegridi. Amabhethri -anamandla kagesi aphezulu enza le misebenzi ngokuyimpumelelo kunezinye izindlela, okuwenza abe izixazululo ezincanyelwayo zama-opharetha okudlulisela.
Imakethe yomhlaba wonke-yesikali sesitoreji sebhethri ifinyelele ku-$10.69 billion ngo-2024, namabhethri e-lithium{3}}ion amele u-85% wokufakwa. Izilinganiso zikhomba ukuthi le makethe izokhula ifinyelele ku-$43.97 billion ngo-2030, ikhule ngo-27% ngonyaka. Izakhiwo{10}ezinamandla kagesi aphezulu zibusa lokhu kukhula, ikakhulukazi ekufakweni okukhulu okudlula umthamo ongu-100 MWh.
-Amabhethri emoto kagesi empilo yesibili abonisa ukuguquguquka kwamasistimu{1}}amandla kagesi aphezulu. Ama-EV esimanje asebenzisa amaphakethe ebhethri asebenza ukusuka ku-200V ukuya ku-900V, futhi lawa maphekhi angashintshela kusitoreji esimile ngemva kokuphela kwempilo yawo yezimoto. Izinkampani ezifana ne-Redwood Materials zenze amasistimu e-"universal translator" avumela amaphakethe ebhethri kulo lonke ibanga lamandla kagesi, avumela{6}}izinhlelo zokusebenza zempilo yesibili ezinweba ukusetshenziswa kwebhethri okuphelele ngeminyaka engu-6-10.
Izicelo Zokutholwa Kwesitoreji Samandla Ebhethri Enamandla Kagesi
Imikhakha ehlukene isebenzisa{0}}amabhethri anamandla kagesi aphezulu ngezidingo ezithile zokusebenza.
Isitoreji samandla sendawo yokuhlala siya ngokuya sisebenzisa{0}amasistimu kagesi aphezulu. Ingxenye yamandla angu-75-150 kWh yayibambe isabelo semakethe esingu-45.6% ngo-2023, esetshenziswa kakhulukazi ekufakweni kwasekhaya. Lawa mabhethri kagesi aphezulu okugcina amandla ahambisana ne-solar ephezu kophahla ukuze anike amandla ukuzimela namandla ayisipele. Abanikazi bezindlu babika izikhathi zokukhokha zeminyaka engu-6-8 ezimakethe ezinamanani kagesi wesikhathi sokusebenzisa kanye nezinqubomgomo zensalela yemitha.
Izakhiwo zezentengiselwano nezimboni zisebenzisa{0}}amabhethri anamandla kagesi aphezulu ukuze kwehliswe inani elifunekayo. Izinsiza eziningi zikhokhisa amakhasimende ezentengiso ngokusekelwe esidleni sawo samandla amaminithi angu-15-esiphezulu njalo ngenyanga, okudala izikweletu ezingu-$10-$30 nge-kW ngayinye yesidingo esikhulu. Isistimu yebhethri enamandla amakhulu angu-500 kWh ingashefa ukufunwa okuphezulu ngo-200-300 kW, yonga u-$24,000-$108,000 ngonyaka. Lezi zinhlelo ngokuvamile zithola imbuyiselo ekutshalweni kwezimali phakathi neminyaka emi-3-5.
Ingqalasizinda yokushaja imoto kagesi incike-kumabhafa webhethri anamandla kagesi aphezulu. Iziteshi ezishaja ngokushesha ezinamandla angu-350 kW zingadinga ukuthuthukiswa kwesevisi ebizayo ngaphandle kokubhafa kwebhethri. Ibhethri elingu-1 MWh eliphezulu{5}}le-voltage endaweni yokushaja lingasekela amashaji amaningi ngesikhathi esisodwa kuyilapho idonsa amandla angaguquki, alawulekayo kugridi. Lolu hlelo lokusebenza lukhule ngo-180% ngo-2024 njengoba ukwamukelwa kwe-EV kushesha.
Ukuhlanganiswa kwamandla avuselelekayo kuveza ithuba elikhulu lokukhula. Amapulazi omoya kanye ne-solar afaka phakathi isitoreji samabhethri ukuze asuse ukukhiqizwa kusuka eziqongweni zokukhiqiza kuya ekudingeni okuphezulu. Ezomnotho zisebenza lapho amabhethri ekwazi ukushaja ngesikhathi samanani aphansi kagesi wewholesale futhi akhishwe phakathi{2}}nezikhathi zamanani aphezulu. Amasistimu anamandla kagesi aphezulu{4}akhulisa imbuyiselo yezomnotho ngokusebenzisa{5}}uhambo oluhle{6}}iphuzu ngalinye lephesenti lokusebenza kahle lihumusha ngokuqondile imali engenayo kuzinhlelo zokusebenza ze-arbitrage.
Ukucatshangelwa Kwezindleko kanye Nezitayela Zemakethe
Amabhethri-anamandla kagesi aphezulu athwala izindleko zokuqala kodwa aletha izindleko eziphansi eziphelele zobunikazi.
Ubunzima bokukhiqiza bukhuphuka nge-voltage. Amasistimu okuphatha ibhethri amaphakethe{1}}anamandla kagesi aphezulu adinga ukugada nezici zokuphepha eziyinkimbinkimbi. Ukulinganisa kweseli kulo lonke uchungechunge lokuxhumana kuba bucayi kakhulu. Izilinganiso zezingxenye kufanele zibhekane nengcindezi kagesi ephezulu. Lezi zici zengeza u-15-25% ezindlekweni zokuqala zephakethe lebhethri uma kuqhathaniswa nokulingana kwe-voltage ephansi yomthamo ofanayo.
Kodwa-ke,{0}}izindleko zeleveli zivuna amabhethri anamandla kagesi aphezulu ekugcineni amandla. Izindleko zekhebula ezincishisiwe, ukufakwa okulula, nama-inverter amancane kunciphisa iprimiyamu yebhethri. Isistimu yokuhlala engu-100 kWh ephelele ibiza u-$45,000-$55,000 wokufaka-i-voltage ephezulu uma iqhathaniswa no-$50,000{14}}i-$65,000 kwezinye{15}ezihlukile ze-voltage ephansi uma ifaka zonke izingxenye zebhalansi yesistimu.
Izintengo zebhethri ziqhubeka nokwehla ngokushesha. Izindleko ze-Lithium-zehle ngo-89% kusukela ngo-2010 kuya ku-2024, zafinyelela cishe ku-$139 kWh ngayinye ezingeni lephekhi. E-China, lapho ukukhiqiza kuholela emhlabeni wonke, amabhethri e-LFP abiza ngaphansi kuka-$100 kWh ngayinye. Le trajectory yezindleko yenza{9}}isitoreji se-voltage ephezulu sisebenze ngokwezomnotho ezinhlelweni zokusebenza ezikhawulelwe kumasistimu{10}}amandla kagesi aphansi.
Ukuqagela kwezimakethe kuyehluka ngomthombo kodwa ngokufana kubonisa ukukhula okuqhumayo. Imakethe-yamandla kagesi aphezulu yalinganisa u-$47.75 billion ngo-2024 futhi ingafinyelela ku-$228 billion kuya ku-$642 billion ngo-2033, kuye ngezinga lokutholwa nokusekelwa kwenqubomgomo. Isifunda sase-Asia Pacific, ikakhulukazi i-China, singu-45-50% wokufakwa komhlaba wonke kanye nama-80% wamandla okukhiqiza.
Izinhlelo Zokuphepha Nokuphatha
Amandla kagesi aphezulu aletha izingozi zikagesi ezidinga imithetho eqinile yokuphepha.
Amandla kagesi angaphezu kuka-60V DC aletha ingozi yokushaqeka ebulalayo. Ukufakwa kwebhethri{2}}elinamandla kagesi aphezulu kudinga ukuqeqeshwa okukhethekile kochwepheshe nezinto zokuvikela ngesikhathi sokulungiswa. Amasistimu aklanywe kahle ahlanganisa izendlalelo zokuphepha eziningi: izindawo ezivalekile ezingazodwa, izingidi ezinqamula i-voltage lapho zifinyelelwa, namalebula ezixwayiso amakwe ngokucacile.
Ukuphatha okushisayo kuba bucayi kakhulu njengoba ukuminyana kwamandla kukhuphuka. Amabhethri{1}}anamandla kagesi aphezulu apakisha amandla engeziwe awayise ezindaweni ezincane, futhi noma yiliphi iphutha elibangela ukuphuma ngokushesha ligxilisa ukushisa ezindaweni ezivalekile. Amasistimu okupholisa athuthukile{3}}okupholisa uketshezi okufakwayo okukhulu, ukupholisa komoya okuyinkimbinkimbi kumayunithi amancane{4}}agcina amazinga okushisa okusebenza aphephile. Izinzwa ezishisayo kulo lonke ibhethri zibangela ukucisha okuzenzakalelayo uma amazinga okushisa eqa imikhawulo ephephile.
Amasistimu okuphatha amabhethri ekufakweni{0}}kumandla kagesi aphezulu amele izinkundla zekhompyutha eziyinkimbinkimbi. Amayunithi esimanje e-BMS aqapha ama-voltage eseli ngalinye (kuya ku-±10mV ukunemba), amazinga okushisa (±1℃), nama-currents kuyilapho ebikezela umthamo osele ngokunemba okungu-95% kusetshenziswa ama-algorithms okufunda komshini. Lawa masistimu anqanda ukukhokhisa ngokweqile,{6}}ukukhipha ngokweqile, kanye namazinga enkokhiso/wokukhipha ngokweqile asheshisa ukuwohloka.
Izinhlelo zokucisha umlilo ezenzelwe ikhemistri yebhethri ye-lithium zinikeza izendlalelo zokugcina zokuphepha. Ukufakwa kusebenzisa{1}ukucindezela okususelwa kugesi, amasistimu enkungu yamanzi, noma ama-agent amakhemikhali akhethekile. Izidingo zokulawula zokuvikela umlilo ziyahlukahluka ngendawo kanye nesikali sokufaka, ngensizakalo-izinsiza zesikali ngokuvamile ezidinga ukutholwa komlilo okuphelele nokucindezelwa.
Irekhodi lokuphepha-lesitoreji sebhethri eline-voltage ephezulu selithuthuke kakhulu. Izehlakalo zehla zisuka ku-23 zokwehluleka okubikiwe emhlabeni wonke ngo-2019 zaya kweziyisi-7 ngo-2023, naphezu komthamo ofakiwe ophindwe kathathu. Ubuchwepheshe obungcono be-BMS, ukuphatha okushisayo okuthuthukisiwe, nezinqubo zokufaka ezicolisisiwe ziqhuba lokhu kuthuthukiswa kokuphepha.
Ukuthuthukiswa Kwekusasa kanye Nezintsha
I-trajectory yobuchwepheshe ikhomba kuma-voltage aphezulu ngisho namakhono athuthukisiwe.
I-800V ye-architecture iba indinganiso-kumasistimu esizukulwane esilandelayo. Leli zinga le-voltage, esivele lisetshenziswe ezimotweni zikagesi ze-premium, livumela ukushaja okungu-10-80% ngemizuzu engu-15 ngamabhethri angu-100 kWh. Izinhlelo zokusebenza zesitoreji segridi ezisebenzisa i-800V zibika u-2-3% wezinzuzo ezengeziwe zokusebenza kahle uma kuqhathaniswa namasistimu angu-400V. Ngo-2027, abahlaziyi bezimboni benza iphrojekthi yokuthi i-800V izomela u-40% wokufakwa okusha kwe-high-voltage.
Amabhethri esimo esiqinile-athembisa ukuthuthukiswa koshintsho. Lawa mabhethri ashintsha ama-electrolyte awuketshezi ngezinto eziqinile, okungenzeka aphindeke kabili ukuminyana kwamandla kuyilapho kuthuthukisa ukuphepha. Ubuchwepheshe besimo esiqinile-buvumela ukusebenza ngama-voltage aphezulu ngaphandle kokukhathazeka ngokuwohloka kwe-electrolyte okukhawulela amasistimu oketshezi. I-Toyota ne-QuantumScape iqondise ekukhiqizeni kwezwe okuqinile-ngowezi-2027-2028, nakuba izinga lokukhiqiza lihlala lingaqinisekile.
Iseli-lokupakisha{1}}imiklamo isusa amamojula amaphakathi, ihlanganisa ngokuqondile amaseli abe amaphakethe ebhethri. Lesi sakhiwo, esiqalwe ibhethri le-Qilin le-CATL, sikhuphula ukuminyana kwamandla ngo-13% futhi kunciphisa izindleko ngokususa izakhiwo ezingasasebenzi. Idizayini eyenziwe lula izuzisa ikakhulukazi-amasistimu e-voltage aphezulu lapho ukuxhumeka kwamamojula kudala kwadala ukwehla kwamandla kagesi kanye nokukhathazeka ngokwethembeka.
Amabhethri e-sodium-ioni angena emakethe njengezinye{1}}ezibiza izindleko eziphansi zokulondoloza umile. Nakuba inikezela ngokuminyana kwamandla okuphansi kune-lithium-ion (160 Wh/kg uma iqhathaniswa no-300 Wh/kg), i-sodium-i-ion isebenzisa izinto eziningi futhi ibiza ngaphansi ngo-30%. Ama-voltage asebenzayo afinyelela ku-160V+, anele izinhlelo eziningi zegridi. Ukufakwa kwegridi ye-sodium{12}}yokuqala ye-ion, indawo engu-50 MW / 100 MWh esifundazweni sase-China sase-Hubei, kuqale ukusebenza ngo-2024.
imibuzo ejwayelekile ukubuzwa
Imaphi amandla kagesi afaneleka "njenge-voltage ephezulu" yokugcina amandla?
Amazinga omkhakha achaza{0}}amabhethri e-voltage aphezulu njengamasistimu asebenza ngaphezu kuka-60V DC. Amasistimu amaningi okuhlala asebenza ku-100-400V, kuyilapho ukufakwa kwezentengiso negridi kuvame ukusebenzisa i-400-800V. I-voltage ethile incike ezidingweni zohlelo lokusebenza, izimiso zokuphepha, nokuhambisana kwe-inverter.
I-voltage ephezulu ithuthukisa kanjani ukusebenza kahle kwebhethri?
Amandla kagesi aphezulu anciphisa amandla asebenzayo alinganayo, alandela i-P=U × I. Amanje aphansi asho ukulahlekelwa okuphikisayo okuncishisiwe kulo lonke uhlelo-okuhlanganisa amakhebuli, izixhumi, nezingxenye zebhethri zangaphakathi. Lo mphumela uhlanganiswa kulo lonke uchungechunge lokuguqulwa kwamandla, ukukhiqiza ukuthuthukiswa kokusebenza kahle okungu-5-ku-10% uma kuqhathaniswa nezinye izinhlobo zamandla aphansi.
Ingabe amabhethri anamandla kagesi aphezulu ayingozi kakhulu kunamasistimu kagesi aphansi?
Amandla kagesi aphezulu anyusa ingozi yokushaqeka kukagesi, okudinga imithetho eqinile yokuphepha. Kodwa-ke, amasistimu esimanje aphezulu{1}}anamandla kagesi ahlanganisa izendlalelo eziningi zokuphepha ezihlanganisa izindawo ezivalekile, izikhiye, nokuqapha okuyinkimbinkimbi. Uma eklanywe futhi efakwe kahle, amabhethri{3}}anamandla kagesi aphezulu agcina amarekhodi amahle kakhulu okuphepha. Izehlakalo zomlilo ekugcinweni kwebhethri zehlile njengoba ubuchwepheshe bukhula, naphezu kokufakwa okukhulayo.
Ingabe amasistimu elanga akhona angathuthukela kumabhethri anamandla kagesi aphezulu?
Ukuthuthukisa kuncike ekusebenzisaneni kwe-inverter. Ama-inverter amaningi esimanjemanje asekela amabhethri-anamandla kagesi aphansi kanye{2}nophezulu{2}}ngezimiso eziyisisekelo zokuxhuma. Ama-inverter amadala adizayinelwe ngokukhethekile amasistimu angu-48V adinga ukushintshwa ukuze kuthuthukiswe{5}}ama-voltage aphezulu. Isamba sezindleko zokushintsha i-inverter kanye namabhethri aphezulu-e-voltage ngokuvamile adlula izindleko ezintsha eziphansi-zebhethri le-voltage ngo-15-20%, kodwa izinzuzo zesikhathi eside ngokuvamile zithethelela ukutshalwa kwezimali.
Ikuphi ukunakekelwa okudingwa amasistimu ebhethri kagesi aphezulu?
Amasistimu kagesi aphezulu-adinga ukunakekelwa okungavamile kunezinye{1}}zamandla kagesi aphansi ngenxa yokuqina okuphezulu. Ukunakekelwa okujwayelekile kufaka phakathi ukuhlolwa kwaminyaka yonke kokuxhumeka kukagesi, izibuyekezo ze-firmware ye-BMS, nokuhlolwa kwesistimu yokupholisa. Ochwepheshe bezobuchwepheshe kufanele benze konke ukulungisa ngenxa yezingozi zikagesi. Abakhiqizi abaningi batusa ukuhlolwa okuphelele njalo eminyakeni emi-2-3 yezinhlelo zokuhlala, nokuhlolwa okuvamile kokufakwa kwezentengiso.
Amabhethri kagesi aphezulu ahlala isikhathi esingakanani ezinhlelweni zokugcina amandla?
Amabhethri e-lithium ekhwalithi ephezulu{{0}ye-voltage{1}}e-ion afinyelela imijikelezo engu-6,000-10,000 kuyilapho egcina u-70-80% womthamo wangempela. Lokhu kuhumusha iminyaka eyi-15-20 ezindaweni zokuhlala ezijwayelekile ezinomjikelezo owodwa wansuku zonke. Izinhlelo zokusebenza zezentengiso ezinemijikelezo eminingi yansuku zonke zingase zibone iminyaka engu-8-12. Ikhemikhali ye-LFP ihlinzeka ngempilo ende kakhulu, kuyilapho ikhemikhali ye-NMC inikezela ngokuminyana kwamandla okuphezulu ngokuphila komjikelezo oncishisiwe kancane.
Amabhethri kagesi aphezulu amele ukukhetha okuphelele kwesitoreji samandla sesimanje kuzo zonke izinhlelo zokusebenza zokuhlala, ezohwebo, negridi{0}}. Izinzuzo eziyisisekelo-ezisebenza kahle kakhulu, ukushaja okusheshayo, ukusetshenziswa okungcono kwesikhala, nokuhlala isikhathi eside{3}}kudlula izindleko zokuqala eziphezulu kanye nezimfuneko zokuphepha. Njengoba izikali zokukhiqiza ziqhubeka nokukhula kanye nezindleko zehla,{5}}amasistimu kagesi aphezulu azobusa imakethe yokugcina amandla.
Inguquko yomhlaba wonke eya kumandla avuselelekayo incike kakhulu ezisombululweni zesitoreji ezisebenzayo. Amabhethri kagesi aphezulu okugcina amandla ahlinzeka ngezici zokusebenza ezidingekayo zalolu shintsho, alethe imiphumela{1}}ezinye izindlela zama-voltage aphansi ezingeke zifane. Ukuthi kulinganisa ukukhiqizwa kwelanga nomoya, ukuhlinzeka ngamandla ayisipele ngesikhathi sokucisha, noma ukunika amandla ukutholwa kwemoto kagesi, amabhethri anamandla kagesi aphezulu ayaqhubeka ethuthukela ekusetshenzisweni okubanzi nasemandleni athuthukisiwe.
Imithombo Yedatha:
I-International Energy Agency (IEA) - I-Global EV Outlook 2025
I-National Renewable Energy Laboratory (NREL) - Izindleko Zesitoreji Sebhethri 2024
Ucwaningo lwe-Grand View - Igridi{1}}I-Scale Battery Storage Market Analysis 2024
Khulisa Ucwaningo Lwemakethe - Umbiko Wemakethe Yebhethri Lamandla Aphezulu Ka-2024
I-AlphaESS - Imibhalo Yezobuchwepheshe kokuthi I-Voltage Ephezulu iqhathaniswa ne-Low Voltage Systems
I-BloombergNEF - I-Outlook yemakethe Yesitoreji Samandla 2024