Niyihe bateri ya lithium titanate iruta lisiyumu fer fosifate ndetse na bateri ya lithium?

Kugeza ubu, amamodoka mashya yingufu zikoresha cyane cyane akoresha bateri ya lithium yamashanyarazi hamwe na fosifate ya lithium fer cyangwa ibikoresho bya ternary nkibicuruzwa bya cathode, byombi bifite inyungu zabyo mubijyanye n’imodoka nshya zitwara abagenzi n’imodoka nshya. None, ninde uruta bateri ya lithium titanate, lithium fer fosifate na bateri ya ternary?

Ibi kandi bitangirana nimikorere ya bateri 3. Nkuko twese tubizi, imikorere ya bateri ya lithium-ion ishyirwaho cyane cyane na electrode nziza, electrode itameze neza, electrolyte ndetse nayo itandukanya. Ibikoresho byiza kandi nanone bibi bya electrode bigira ingaruka zikomeye kubipimo byingenzi bya batiri, nkubushobozi, ubunini bwingufu, ubuzima bwikiziga, umutekano numutekano, imikorere yibiciro, hamwe nigiciro.

Nubwo ternary imwe nimwe ikoreshwa nkibikoresho byiza bya electrode, bateri ya lithium titanate isenya bateri gakondo ya tekinoroji ya kijyambere yo gukoresha graphene nka electrode mbi, kandi ikoresha lithium titanate nkibicuruzwa bibi bya electrode, ibyo bigatuma iba imbere mumaso ya bagenzi bayo. Ariko imico ya lithium titanate ubwayo ituma bateri yibi bikoresho ifite ibintu bitangaje.

Gufata lithium fer fosifate-graphene, ternary-graphene, ndetse na bateri ya ternary-lithium titanate lithium-ion nkurugero, mubijyanye nubunini bwingufu zonyine, bateri ya lithium titanate iri mubi. Raporo y’ubushakashatsi bw’amajyaruguru y’iburasirazuba yasobanuye ko ingufu nyazo zisanzwe za batiri ya lithium fer fosifate ari 100-120Wh / kg, kandi na bateri ya ternary ni 150-200Wh / kg. Muri byo, bateri ya nikel-cobalt-aluminium ikoreshwa na TSLA igera kuri 252Wh / kg. Batiri Yinlong lithium-ion titanate ni 90Wh / kg gusa, ni mirongo itanu kwijana rya bateri yibicuruzwa bimwe na bimwe bya grafite.

Kubijyanye nigiciro, bateri ya lithium titanate nta nyungu ifite. Kugeza ubu, ibicuruzwa bibisi bya batiri ya Yinlong lithium titanate bigizwe na hydroxide ya titanium kimwe na hydroxide ya lithium, igiciro cyacyo kikaba kirenze icy'ibikoresho bya grafite anode. Nkurikije ibyavuye mu bushakashatsi bwakozwe na bateri yigihugu cyanjye, igiciro cyubu cya lithium fer fosifate na bateri ya ternary ni 1100 yuan / kwh -1200 yuan / kwh, mugihe amafaranga ya batiri ya lithium titanate afitanye isano ninshuro 2-3 za bateri ya ternary. Nigute bateri ya lithium titanate yuzuza isoko? Nta gushidikanya, ni inyungu zayo-imwe-imwe yimuye abantu bamwe mumirenge.

Mbere ya byose, urebye ibimenyetso byingenzi byumutekano bya bateri, lithium titanate irasohoka.

Iyo lithium titanate ikoreshwa nkigicuruzwa cya electrode itameze neza, sisitemu ishoboka iba hejuru ya 1.55 V, ikaba irenze 1V irenze iy'ibisanzwe bisanzwe bya grafite mbi ya electrode. Nubwo ubucucike bumwe bwatakaye, nabwo bwerekana ko bateri ifite umutekano. Impuguke mu bya tekinike Lu Blu-ray ubwo yavugaga ko gukenera amashanyarazi ya electrode itagabanuka neza iyo bateri yishyuwe vuba, ariko niba nayo iri hasi, bateri ya lithium-ion ikunda kugwa na lithium ikora cyane. Iyi lithium ion ntabwo ikora gusa, ariko nayo ikora na electrolyte. Ubushyuhe noneho butangizwa kimwe na gaze yaka igaragara, igatera umuriro. Litiyumu titanate irinda ingufu za electrode itabangamiye kuba 0 biturutse ku muvuduko mwinshi wa 1V, urinda mu buryo butaziguye imvura ya ion ya lithium, bityo ukaba wizeza umutekano n’umutekano wa batiri.

Kubera ko bateri ya lithium titanate ishobora gukoreshwa neza haba mubushyuhe ndetse no mubushyuhe buke bwo hasi, nayo irerekana ibyiza byayo byingenzi byo kurwanya ubushyuhe bwagutse (cyane cyane kugabanya ubushyuhe bwurwego). Kugeza ubu, ubushyuhe bwakazi butandukanye bwa Yinlong lithium titanate ya batiri iri hagati ya dogere -50 kimwe ninzego 65, mugihe ingufu za bateri zisanzwe za grafite anode zitangira kwangirika mugihe urwego rwubushyuhe ruri munsi y -20, kandi ubushobozi bwo kwishyuza kuri dogere 30 ni kuri 14% yubushobozi rusange bwo kwishyuza, ntibishobora gukora neza mugihe cy'itumba rikomeye.

Byongeye kandi, bitewe nuko bateri ya lithium titanate ifite ihinduka rya 1% gusa nubwo ryaba ryarengeje urugero, ryitwa ibicuruzwa bitagabanije, bigatuma bigira ubuzima burebure cyane. Wei Yincang, umuyobozi wa Yinlong, ubwo yavugaga ko ubuzima bwa batiri ya Yinlong lithium titanate ishobora kugera ku myaka mirongo itatu, ibyo bikaba bingana n'ubuzima bwa serivisi bw'imodoka n'ikamyo, mu gihe ubuzima busanzwe bwa batiri ya grafite ya anode ari imyaka 3-4 gusa. Urebye inzira zose zubuzima, amafaranga ya batiri ya lithium titanate ni make.

Inyungu yanyuma ya lithium titanate nigiciro cyayo cyihuse kimwe nubushobozi bwo gusohora ndetse nigiciro kinini. Kugeza ubu, igipimo cyo kwishyuza cya batiri Yinlong lithium titanate ni 10C cyangwa wenda 20C, mugihe igiciro cyo kwishyuza ibicuruzwa bisanzwe bya grafite anode ari 2C-4C gusa.

Hashingiwe kuri ibi biranga tekinike ya batiri ya lithium titanate, abari mu nganda bemeza ko zujuje ibyifuzo bya bisi nshya ndetse n’ibikoresho binini byo kubika ingufu. Fata bisi nkurugero, urugendo rwurugendo rwonyine ntirurenga kilometero 40, kimwe nigihe intera iri hagati ya buri sitasiyo ya gari ya moshi kandi ugategereza kugeza gutandukana gukurikira kujya byibuze muminota mike. Muri iki gihe, ibintu bibi byo kugabanya ingufu za batiri ya lithium titanate ntabwo bizahindura imikoreshereze yimodoka, icyakora bizagaragaza inyungu zo kwishyuza byihuse. Nkubwikorezi rusange, bisi mubyukuri byateye imbere cyane hejuru yumutekano numutekano ndetse nigihe kirekire cya bateri.