Izidingo ezintathu ezinkulu zebhethri lokugcina amandla, ukuphepha kubaluleke kakhulu
Isitoreji samandla kagesi sibhekwa njengendlela eyinhloko yokugcina amandla ohlelweni lwamandla lwesikhathi esizayo, ibhethri kanye ne-PCS kuyinani eliphakeme kakhulu kanye nezithiyo ochungechungeni lwemboni, isidingo esiyinhloko sisekuphepheni okuphezulu, impilo ende kanye nezindleko eziphansi. Phakathi kwazo, ukuphepha kuyisihluthulelo. Abanye ochwepheshe bemboni bathi, manje isitshalo samandla kagesi sokugcina amandla sithuthuka ngokushesha, kodwa inkinga yokuphepha iwukuvinjelwa kwentuthuko yaso enkulu, isitshalo samandla sokugcina amandla saseBeijing kanye nephrojekthi yokugcina amandla yaseTesla Australia yokuqhuma nayo imboni yokugcina amandla izwakalise i-alamu.
Ngenxa yalokhu, i-Guiding Opinions on Accelerating the Development of New Energy Storage ibeka phambili ukusungulwa kwezindinganiso zobuchwepheshe bokuphepha kanye nohlelo lokuphatha, ukuqinisa ukuphathwa kokuphepha komlilo, ukulandela ngokuqinile umgomo wokuphepha njengesimiso esiyisisekelo; ekuphepheni okuphezulu, ezindleleni eziphansi, ukuthembeka okuphezulu, impilo ende kanye nezinye izici zentuthuko ende; ukuqinisa ukuphepha kocwaningo lobuchwepheshe bokugcina amandla kagesi nokunye. I-National Development and Reform Commission, i-National Energy Board, ukuhlela ukubhalwa kwe-"Interim Measures for the Safe Management of Electrochemical Energy Storage Stations (Draft)", nayo ibikhona ngomhlaka-24 Agasti emphakathini ukuze kuxoxiswane nomphakathi, ukuqinisa ukuphathwa kokuphepha kokugcina amandla.
Ukuphepha okuphezulu, impilo ende, izici ezinhle kakhulu zebhethri le-nickel-metal hydride
Idatha ye-China Battery Industry Association ikhombisa ukuthi i-nickel-metal hydride kagesi iphephile kakhulu, impilo yomjikelezo omude, i-electrode yayo enhle eyenziwe ngama-nickel sphere, i-electrode engasebenzi kahle isekelwa yi-hydrogen storage alloy, ingeyonto ezinzile, i-electrolyte yamanzi inezakhiwo ezinhle zokuvimbela ilangabi, ngeke iqhume futhi ishise izingozi, i-monomer yebhethri enamandla afinyelela ku-140wh/kg; impilo yomjikelezo efinyelela ku-3,000, ukushaja okungajulile nokukhipha umjikelezo wesimo ofinyelela izikhathi eziyi-10,000 noma ngaphezulu; ingasetshenziswa izikhathi ezingaphezu kweziyi-10,000; ingasetshenziswa izikhathi ezingaphezu kweziyi-10,000. Ngaphezu kweziyi-10,000; ingagcina izinga eliphezulu lokushaja nokukhipha ku--40°C ~ 60°C endaweni. Ukuthengiswa kwezimoto zeToyota HEV emhlabeni wonke kufinyelele ngaphezu kwezigidi eziyi-18, futhi kuhlonyiswe kabanzi ngamabhethri e-nickel-metal hydride, akukaze kube khona icala elilodwa lezingozi zokusha kwebhethri, ukuphepha okuphezulu kwebhethri kuqinisekiswe ngokugcwele.
Ngaphezu kwalokho, ukushaja nokukhipha ibhethri kungukuguqulwa kwamandla amakhemikhali namandla kagesi, izinga lokushisa linomthelela omkhulu ekusabeleni kwamakhemikhali. Iziteshi zamandla okugcina amandla ikakhulukazi zingaphandle, izinhlobo eziningi zamabhethri zithinteka yimvelo kanye nokushisa, okukhawulela indawo yeziteshi zamandla futhi kwenza buthaka indima yokugcina amandla. Amabhethri e-hydride e-nickel-metal asezingeni lokushisa eliphansi kakhulu kanye nokushisa okuphezulu okuhle kakhulu kokushaja nokukhipha, ukuze indawo yesiteshi samandla okugcina amandla ibe nezimo eziguquguqukayo, ezilula, nokusebenza okungcono okuphelele, okuye kwaba ukuhlanganyela kwayo emncintiswaneni wezindlela ezahlukene zobuchwepheshe bebhethri "amaphuzu amaningi".
Eqinisweni, amabhethri e-nickel-metal hydride esicelweni semakethe yokugcina amandla abe yisibonelo. Ngo-2020, inkampani yokugcina amandla ebhethri le-nickel-metal hydride i-Nilar yi-European Investment Bank itshale imali engama-euro ayizigidi ezingama-47. Kuyaqondakala ukuthi i-Nilar igxile ekuhlanganisweni nasekugcinweni kwamandla avuselelekayo, izinhlelo zokushaja amandla ezilindile kanye nezimoto zikagesi, ukutshalwa kwezimali kuwukukhuthaza inkampani ukuthi ihlanganiswe nebhethri lezinhlelo zemakethe zokuhlala, ezentengiselwano nezezimboni kanye nezinhlelo zemakethe yegridi noma yengqalasizinda. Ngokusho kwe-Frontiers in Polymer Science, ithimba likaProfesa Yi Cui eStanford University lithuthukise ibhethri le-nickel-metal hydride (Ni-MH) lezinhlelo zokusebenza zamandla avuselelekayo kanye nesitoreji esikhulu, ngezinzuzo zokuphila isikhathi eside kakhulu, akukho bungozi bomlilo noma ukufudumala, akukho sidingo sokulungiswa okuvamile, ukuziphatha okuhle kokushisa okuphansi, kanye nezindleko eziphansi. Ithimba likaCui lizokwakha iyunithi yokuhlola enomthamo wokugcina wama-megawatts ama-2 ngo-2021, futhi lihlela ukwandisa umthamo wayo ube izikhathi ezingama-20 ngaleso samba ngo-2022.
Isikhathi sokuthunyelwe: Agasti-24-2023
