I-01 - i-lithium iron phosphate ibonisa ukunyuka okunyukayo

Ibhetri yeLithium ineenzuzo zobukhulu obuncinci, ubunzima obulula, ukutshaja ngokukhawuleza kunye nokuqina.Inokubonwa kwibhetri yeselula kunye nebhetri yemoto.Phakathi kwazo, ibhetri ye-lithium iron phosphate kunye nebhetri ye-ternary ingamasebe amabini amakhulu ebhetri ye-lithium ngoku.

Kwiimfuno zokhuseleko, kwintsimi yeemoto zabahambi kunye neenqwelo ezikhethekileyo, ibhetri yamandla e-lithium iron phosphate enexabiso eliphantsi, iteknoloji yemveliso ekhulileyo kunye nekhuselekileyo isetyenziswe kwizinga eliphezulu.Ibhetri ye-lithium ye-ternary enamandla athile aphezulu isetyenziswa ngokubanzi kwibala leemoto zabakhweli.Kwiqela elitsha lezaziso, umlinganiselo weebhetri ze-lithium iron phosphate kwintsimi yezithuthi zabakhweli ziye zanda ukusuka ngaphantsi kwe-20% ngaphambi kokuba malunga ne-30%.

I-Lithium iron phosphate (LiFePO4) yenye yezinto ezisetyenziswa ngokuqhelekileyo zecathode kwiibhetri ze-lithium-ion.Inozinzo olululo lwe-thermal, ukufunxa okuncinci kokufuma kunye nokusebenza komjikelo ogqwesileyo wokukhupha intlawulo phantsi kwemeko ehlawulwe ngokupheleleyo.Yingqwalasela yophando, imveliso kunye nophuhliso kwintsimi yamandla kunye nokugcinwa kwamandla iibhetri ze-lithium-ion.Nangona kunjalo, ngenxa yokukhawulelana kwesakhiwo sayo, ibhetri ye-lithium-ion kunye ne-lithium iron phosphate njengoko izinto ezintle zine-conductivity ephantsi, isantya sokusasazwa kancinci kwe-lithium ion, kunye nokusebenza kakubi kokukhutshwa kwiqondo lokushisa eliphantsi.Oku kubangela i-mileage ephantsi yeenqwelo zakuqala ezixhotyiswe ngebhetri ye-lithium iron phosphate, ngakumbi kwimeko yobushushu obuphantsi.

Ukuze ufune ukuphumelela mileage yonyamezelo, ngakumbi emva komgaqo-nkqubo wenkxaso-mali yezithuthi zamandla amatsha ukubeka phambili iimfuno eziphezulu zokunyamezela isithuthi, ubuninzi bamandla, ukusetyenziswa kwamandla kunye neminye imiba, nangona ibhetri ye-lithium ye-iron phosphate ihlala kwimarike ngaphambili, i-ternary lithium. ibhetri enoxinano lwamandla aphezulu ngokuthe ngcembe ibe yeyona nto iphambili kwimarike yemoto yabahambi yamandla.Inokubonwa kwisibhengezo samva nje ukuba nangona ubungakanani bebhetri ye-lithium ye-iron phosphate kwintsimi yezithuthi zabakhweli buphinde baphinde babuyele, umlinganiselo webhetri ye-lithium ternary isemalunga ne-70%.

02 - ukhuseleko lolona ncedo lukhulu

I-nickel cobalt aluminium okanye i-nickel cobalt manganese isetyenziswa ngokubanzi njengezinto ze-anode kwiibhetri ze-ternary lithium, kodwa umsebenzi ophezulu wezinto eziphathekayo awuzisi nje amandla aphezulu, kodwa uzisa nemingcipheko ephezulu yokhuseleko.Izibalo ezingaphelelanga zibonisa ukuba ngo-2019, inani leengozi zokuzitshisa kwezithuthi zamandla amatsha lakhankanywa izihlandlo ezili-14 ngaphezulu kunolo ngo-2018, kwaye iibrendi ezinje ngoTesla, Weilai, BAIC kunye ne-Weima ziye zavela ngokulandelelana kwiingozi zokuzitshisa.

Ingabonwa kwingozi yokuba umlilo uvela ngokukodwa kwinkqubo yokutshaja, okanye emva nje kokutshaja, kuba ibhetri iya kunyuka kwiqondo lokushisa ngexesha lokusebenza kwexesha elide.Xa iqondo lobushushu ternary lithium ibhetri phezu 200 ° C, izinto ezintle kulula ukubola, kwaye reaction oxidation kukhokelela ukubaleka ngokukhawuleza thermal kunye ukutsha enobundlobongela.Isakhiwo se-olivine se-lithium iron phosphate izisa ukuzinza kobushushu obuphezulu, kwaye iqondo lokushisa elibalekayo lifikelela kuma-800 ° C, kunye nokuveliswa kwegesi encinci, ngoko kukhuselekile.Yiyo loo nto, ngokusekwe kuqwalaselo lokhuseleko, iibhasi zamandla amatsha ngokubanzi zisebenzisa iibhetri ze-lithium iron phosphate, ngelixa iibhasi zamandla amatsha ezisebenzisa iibhetri ze-ternary lithium azikwazi okwethutyana ukungena kwikhathalogu yezithuthi zamandla amatsha zokukhuthaza kunye nokusetyenziswa.

Kungekudala, iimoto ezimbini zombane ze-Changan Auchan ziye zamkela ibhetri ye-lithium yensimbi ye-phosphate, eyahlukileyo kwiinkampani zezithuthi eziqhelekileyo ezijolise kwiimoto.Iimodeli ezimbini zeChangan Auchan ziiSUV kunye neMPV.UXionng zewei, usekela-manejala jikelele weChang’an Auchan Research Institute, uxelele intatheli oku: “Oku kubonisa ukuba iAuchan ingene ngokusemthethweni kwixesha lamandla ombane emva kweminyaka emibini yemigudu.”

Ngokuphathelele kutheni ibhetri ye-lithium ye-phosphate isetyenzisiweyo, i-Xioning yathi ukhuseleko lwezithuthi zamandla amatsha luye lwahlala "lweentlungu" zabasebenzisi, kunye neyona nto ichaphazelekayo ngamashishini.Ukuqwalasela oku, ipakethe yebhetri ye-lithium yentsimbi ye-phosphate ethwalwa yimoto entsha ilugqibile uvavanyo lomda olungaphezulu kwe-1300 ° C yokubhaka idangatye, - 20 ° C ukuma kobushushu obuphantsi, i-3.5% yesisombululo setyuwa, impembelelo ye-11 kn yangaphandle yoxinzelelo, njl. ., kwaye iphumelele "ezine zingoyiki" isisombululo sokhuseleko lwebhetri "engoyiki ubushushu, ungoyiki kubanda, ungoyiki amanzi, ungoyiki impembelelo".

Ngokweengxelo, i-Changan Auchan x7ev ixhotyiswe ngemagnethi esisigxina ye-synchronous motor enamandla amakhulu e-150KW, kunye ne-mileage yokunyamezela engaphezulu kwe-405 km kunye nebhetri yobomi obude obude kunye namaxesha angama-3000 wokutshaja kwebhayisikile.Kwiqondo lobushushu eliqhelekileyo, kuthatha isiqingatha seyure kuphela ukongeza kwimileage yokunyamezela engaphezulu kwe-300 km."Enyanisweni, ngenxa yobukho benkqubo yokubuyisela amandla e-braking, ukunyamezela kwesithuthi kunokufikelela malunga ne-420 km phantsi kweemeko zokusebenza zasedolophini."Xiong wongeza.

Ngokwesicwangciso esitsha sophuhliso loshishino lwezithuthi zamandla (2021-2035) (Idrafti yeenkcazo) ekhutshwe nguMphathiswa woShishino kunye nobuchwepheshe bolwazi, ukuthengiswa kwezithuthi zamandla amatsha kuya kuba malunga ne-25% ngo-2025. Kuyabonakala ukuba umlinganiselo izithuthi zamandla amatsha ziya kuqhubeka ukwanda kwixesha elizayo.Kulo mxholo, kubandakanywa i-Chang'an Automobile, amashishini azimeleyo eemoto zohlobo oluzimeleyo akhawulezisa uyilo lwemarike yezithuthi zamandla amatsha.