U-Nyobolt, unjiniyela wobuchwepheshe bebhethri obususelwe ku-niobium obushesha kakhulu (okuthunyelwe ngaphambilini) uveze i-prototype yokuqala esebenzayo ye-Nyobolt EV. (Okuthunyelwe ngaphambilini.) Idizayinelwe futhi yaklanywa nge-CALLUM, i-Nyobolt EV izosetshenziselwa kokubili ukuqinisekisa ukusebenza kwebhethri lenkampani endaweni esebenza kahle kakhulu, kanye nokuvumela abakhi bezimoto ukuthi babonele ngesipiliyoni samakhasimende esiphezulu lapho isikhathi sokuphumula esingalungile sokushaja siyinto yesikhathi esidlule.
Isungulwe ngo-2019, iNyobolt eseCambridge isebenzise izinto zayo zesizukulwane esilandelayo ezinelungelo lobunikazi kanye nensimbi oxide anode, ukwakheka kweseli eliphansi le-impedance, amandla kagesi ahlanganisiwe kanye nezilawuli zesoftware ukudala amabhethri aminyene amandla nezinhlelo zokushaja. Lokhu kusekela ukufakwa kukagesi kwezinhlelo zokusebenza ezisebenza isikhathi eside ezimbonini nasezimotweni ezifana namaloli asuka emgwaqeni onguthelawayeka, ama-EV, amarobhothi kanye namadivayisi abathengi adinga amandla aphezulu kanye nemijikelezo yokushajwa kabusha okusheshayo.
Ukuhlola kokuqala emotweni kule nyanga kusetshenziswa amashaja asheshayo angu-350kW (800V) DC kuqinisekisile ukuthi ibhethri le-Nyobolt EV elingu-50Ah 35kWh lingashajwa ukusuka ku-10% ukuya ku-80% ngemizuzu emine imizuzwana engu-37—ngokushajwa okugcwele okwenza i-prototype ifinyelele ibanga lamamayela angu-155 WLTP. Lokho kuyisivinini esiphindwe kabili sezimoto eziningi ezishajayo namuhla. Ngaphezu kwalokho, njengoba imizuzu emine yokuqala iku-500A engaguquki, lokhu kunikeza ibanga elingamakhilomitha angu-120 ngemva kwemizuzu emine nje yokushaja.
Ubuchwepheshe beNyobolt buphinde buxazulule amazinga okonakaliswa avame ukuza namabhethri e-lithium-ion ashaja kakhulu. Amaseli e-Nyobolt angu-24.5Ah aseqede ngempumelelo imijikelezo yokushaja esheshayo engaphezu kuka-4,000 ye-DoD egcwele (Ukujula Kokukhipha), elingana namamayela angaphezu kuka-600,000 uma esetshenziswa kuphakethe le-Nyobolt EV, kuyilapho esagcine umthamo webhethri ongaphezu kuka-80%. Lokhu kuphindaphinda okuningi kuneziqinisekiso zamabhethri e-EV amakhulu kakhulu emgwaqeni namuhla.
Ukuhlola okuzimele kwe-OEM kuqinisekise amaseli e-Nyobolt 2.6Ah angafinyelela imijikelezo engaphezu kuka-4,400 ngokushaja okungu-12C kanye nokukhishwa okungu-1C ku-23°C. Okubaluleke kakhulu, ukumelana kwangaphakathi kweseli kukhuphuka ngama-50% kuphela ngemuva kwemijikelezo yokushaja eyimizuzu emihlanu eyi-4,400. Lokhu kuphansi kunamanani okuphela amukelwa yimboni amaseli e-EV, okuyinani eliphindwe kabili kunani lokuqala.
Ngaphandle kokuthi amanye ama-OEM abonisa izikhathi zokushaja okusheshayo endaweni eyimizuzu engu-15, ukuhlola eduze kuveza ukuthi inkokhiso ivamise ukuwela endaweni elinganiselwe ye-SOC ekhethelwe ukukhawulela inani lempilo ekhishwa kuseli; ngokwesibonelo, phakathi kuka-20-80%. Ngokuvamile, iphrofayela yokushaja izobamba kuphela lawa maleveli aphezulu wenani lesikhathi sokushaja. Amaseli e-impedance aphansi e-Nyobolt aqinisekisa ukuthi singakwazi ukunikeza ukusimama, ukwelula impilo esebenzisekayo yebhethri kufika kumamayela angu-600,000 esimweni sombonisi wethu wobuchwepheshe.
—Umsunguli kanye noMphathi Omkhulu kaNyobolt, uDkt Sai Shivareddy
Iphakethe lebhethri elingu-35kWh ku-prototype ye-Nyobolt EV aligcini nje ngokungeza amamayela ngokushesha kodwa usayizi wephakethe lebhethri elihlangene uzuzisa abenzi bezimoto nabashayeli, okwenza izimoto zikagesi ezonga amandla ezishibhile ukuzithenga nokukwenza, futhi zisebenzisa izinsiza ezimbalwa ukuze zenze.
Nakuba ukusetshenziswa okubalulekile kwale Nyobolt EV kukhombisa futhi kuhlola ubuchwepheshe bebhethri, ithimba le-CALLUM libunjiniyela ukuze ukukhiqizwa kwevolumu ephansi—kokusetshenziswa komgwaqo noma ithrekhi—kungenzeka. Izinhlelo zokuhlanganisa amabhethri eNyobolt zithuthuke kakhulu futhi zingakhiqizwa ngevolumu ephansi kungakapheli unyaka, zikhuphuke ziye kumaphakethe ayi-1,000 ngo-2025.
Imodeli yokukhiqiza ye-Nyobolt eguquguqukayo inika amandla amavolumu amaseli afika ezigidini ezimbili ngonyaka. Ibhethri lika-Nyobolt lizophinda lithobelane nezimfuneko Zokulawulwa Kwebhethri ze-EU kanye lapho selikhiqizwa.
Isakhiwo se-Nyobolt EV siphinde sigqamise ukuthi singafakwa kanjani kabusha ezinkundleni zokuxhumana ezikhona ze-EV, okulethe ushintsho lwesinyathelo ngesikhathi sokushaja nempilo yokuhamba ngebhayisikili. Amamojula ebhethri eNyobolt EV apholiswa ngamapuleti abandayo anengxube yamanzi/glycol. Isekhethi yebhethri isebenzisa i-AC compressor necondenser kanye nesibandisi sebhethri, esisebenzisana nezinye izimoto ezisebenzayo, futhi iphumela kumojuli eseduze nephakethe lebhethri.
Ukukhiqiza ukushisa okulinganiselwe—okungadluli ku-60 °C ngesikhathi sokushaja okusheshayo noma idrayivu yokusebenza—kuthonywa ngokuyinhloko ikhemistri yeseli ye-impedance ephansi kakhulu.
Ubuchwepheshe bukaNyobolt bakhela phezu kweshumi leminyaka locwaningo lwebhethri oluholwa ososayensi bebhethri baseNyuvesi yaseCambridge uSolwazi Clare Gray CBE kanye noDkt Sai Shivareddy, ababesungule ama-supercapacitor athuthukile. Ukhiye wekhono le-Nyobolt lokuhlinzeka ngokushaja okusheshayo ngaphandle kokuba nomthelela empilweni yebhethri amaseli ayo aphansi akhiqiza ukushisa okuncane, okwenza kube lula ukuphatha amaleveli wamandla aphezulu ngesikhathi sokushaja. Izinto zayo ze-anode kumaseli ebhethri e-lithium-ion zivumela ukudluliswa kwama-electron ngokushesha phakathi kwe-anode ne-cathode.
UNyobolt uthi usexoxa nezinye izimoto eziyisishiyagalombili ze-OEM mayelana nokusebenzisa ubuchwepheshe bayo. Eceleni kwezicelo zezimoto, ubuchwepheshe be-Nyobolt obushaja ngokushesha buzosetshenziswa kulo nyaka kumarobhothi nezinye izinhlelo zokusebenza ezifana nezimoto zokuthengisa ezisindayo ezifuna isikhathi esiphansi sokwehlisa kanye nokukhiqiza okuphezulu, nazo ezithuthukayo.
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