Ibhethri lamandla libizwa ngokuthi inhliziyo yemoto kagesi; uphawu, impahla, umthamo, ukusebenza kokuphepha, njll. kwebhethri yemoto kagesi sekuphenduke "ubukhulu" kanye "namapharamitha" abalulekile wokukala imoto kagesi. Njengamanje, izindleko zebhethri zemoto kagesi ngokuvamile ziyi-30% -40% yemoto yonke, okungase kuthiwe iyisesekeli esiyinhloko!
Njengamanje, amabhethri kagesi ajwayelekile asetshenziswa ezimotweni zikagesi emakethe ngokuvamile ahlukaniswe abe izinhlobo ezimbili: amabhethri e-lithium e-ternary kanye namabhethri e-lithium iron phosphate. Okulandelayo, ake ngihlaziye kafushane umehluko nezinzuzo kanye nokubi kwamabhethri amabili:
1. Izinto ezihlukile:
Isizathu sokuthi kungani ibizwa ngokuthi "i-lithium ye-ternary" kanye "ne-lithium iron phosphate" ngokuyinhloko ibhekisela ezakhini zamakhemikhali "zezinto ezibonakalayo ze-electrode" zebhethri lamandla;
"Ternary lithium":
I-cathode material isebenzisa i-lithium nickel cobalt manganate (Li(NiCoMn)O2) ternary cathode material kumabhethri e-lithium. Le nto ihlanganisa izinzuzo ze-lithium cobalt oxide, i-lithium nickel oxide ne-lithium manganenate, yakha uhlelo lwe-eutectic lwezigaba ezintathu zezinto ezintathu. Ngenxa yomphumela we-ternary synergistic, ukusebenza kwayo okuphelele kungcono kunanoma iyiphi inhlanganisela eyodwa.
"I-Lithium iron phosphate":
ibhekisela kumabhethri e-lithium-ion asebenzisa i-lithium iron phosphate njenge-cathode material. Izici zayo ukuthi ayinayo izakhi zensimbi eziyigugu ezifana ne-cobalt, intengo yempahla eluhlaza iphansi, futhi izinsiza ze-phosphorus ne-iron ziningi emhlabeni, ngakho-ke ngeke kube nezinkinga zokuhlinzeka.
isifinyezo
Izinto ze-Ternary ze-lithium ziyindlala futhi zikhuphuka ngokuthuthuka okusheshayo kwezimoto zikagesi. Amanani abo aphakeme futhi akhawulelwe kakhulu ngezinto zokusetshenziswa ezikhuphuka nomfula. Lesi yisici se-ternary lithium okwamanje;
I-lithium iron phosphate, ngenxa yokuthi isebenzisa isilinganiso esiphansi sezinsimbi ezingavamile/eziyigugu futhi ishibhile futhi iyinala yensimbi, ishibhile kunamabhethri e-lithium e-ternary futhi ayithinteki kangako ngezinto zokusetshenziswa ezikhuphuka nomfula. Lesi yisici sayo.
2. Ukuminyana kwamandla okuhlukile:
"Ibhethri ye-lithium ye-Ternary": Ngenxa yokusetshenziswa kwezakhi zensimbi ezisebenza kakhulu, ukuminyana kwamandla amabhethri e-lithium avamile ngokuvamile (140wh/kg~160 wh/kg), aphansi kunalawo amabhethri e-ternary anesilinganiso esiphezulu se-nickel ( 160 w/kg～180 wh/kg); ukuminyana kwamandla athile kungafinyelela ku-180Wh-240Wh/kg.
"I-Lithium iron phosphate": Ubuningi bamandla ngokuvamile bungama-90-110 W/kg; amanye amabhethri e-lithium iron phosphate athuthukile, njengamabhethri e-blade, anesisindo samandla esingafika ku-120W/kg-140W/kg.
isifinyezo
Inzuzo enkulu ye "ternary lithium battery" ngaphezu kwe "lithium iron phosphate" ukuminyana kwayo okuphezulu kanye nesivinini sokushaja ngokushesha.
3. Ukuguquguquka kwezinga lokushisa okuhlukile:
Ukumelana nezinga lokushisa eliphansi:
Ibhethri ye-lithium ye-Ternary: Ibhethri ye-lithium ye-Ternary inokusebenza okuhle kakhulu kwezinga lokushisa eliphansi futhi ingagcina cishe u-70% ~ 80% womthamo webhethri ojwayelekile ku -20°C.
I-Lithium iron phosphate: Ayimelani namazinga okushisa aphansi: Uma izinga lokushisa lingaphansi kuka -10°C,
amabhethri e-lithium iron phosphate abola ngokushesha okukhulu. Amabhethri e-lithium iron phosphate angagcina kuphela cishe u-50% kuya ku-60% womthamo ojwayelekile webhethri ku -20.°C.
isifinyezo
Kunomehluko omkhulu ekuguquguqukeni kwezinga lokushisa phakathi kwe-"ternary lithium battery" kanye ne "lithium iron phosphate"; "i-lithium iron phosphate" imelana kakhulu namazinga okushisa aphezulu; futhi "ibhethri ye-lithium ye-ternary" ekwazi ukumelana nokushisa okuphansi inempilo yebhethri engcono ezindaweni ezisenyakatho noma ebusika.
4. Ubude bempilo obuhlukene:
Uma umthamo osele/umthamo wokuqala = 80% usetshenziswa njengendawo yokugcina yokuhlola, isivivinyo:
Amaphakethe ebhethri le-lithium iron phosphate anempilo yomjikelezo omude kunamabhethri e-lead-acid namabhethri e-ternary lithium. "Impilo ende kakhulu" yamabhethri ethu e-lead-acid afakwe emotweni cishe izikhathi ezingu-300 kuphela; ibhethri ye-lithium ye-ternary ingahlala izikhathi ezifika ku-2,000, kodwa ekusetshenzisweni kwangempela, umthamo uzobola ufike ku-60% ngemva kwezikhathi ezingaba ngu-1,000; kanye nokuphila kwangempela kwamabhethri e-lithium iron phosphate izikhathi ezingu-2000, kusekhona umthamo we-95% ngalesi sikhathi, futhi impilo yayo yomjikelezo womqondo ifinyelela izikhathi ezingaphezu kuka-3000.
isifinyezo
Amabhethri wamandla ayingcweti yamabhethri. Zombili izinhlobo zamabhethri e-lithium ziqinile. Uma sikhuluma ngokwethiyori, ubude bempilo yebhethri ye-lithium engu-2,000 imijikelezo yokushaja nokukhipha. Noma siyishaja kanye ngosuku, ingahlala iminyaka engaphezu kwemi-5.
5. Izintengo zihlukile:
Njengoba amabhethri e-lithium iron phosphate engenazo izinto zensimbi eziyigugu, izindleko zezinto ezingavuthiwe zingancishiswa kakhulu. Amabhethri e-lithium e-ternary asebenzisa i-lithium nickel cobalt manganate njenge-electrode material ekhangayo kanye ne-graphite njengento engalungile ye-electrode, ngakho-ke izindleko zibiza kakhulu kunamabhethri e-lithium iron phosphate.
Ibhethri ye-lithium ye-ternary ikakhulukazi isebenzisa i-ternary cathode material ye-"lithium nickel cobalt manganate" noma "i-lithium nickel cobalt aluminate" njenge-electrode eqondile, ikakhulukazi isebenzisa usawoti we-nickel, usawoti we-cobalt, nosawoti we-manganese njengezinto zokusetshenziswa. "Isici se-cobalt" kulezi zinto ezimbili ze-cathode iyinsimbi eyigugu. Ngokusho kwedatha evela kumawebhusayithi afanelekile, intengo yereferensi yasekhaya yensimbi ye-cobalt ingu-413,000 yuan/ton, futhi ngokuncipha kwezinto zokwakha, intengo iyaqhubeka nokukhuphuka. Njengamanje, izindleko zamabhethri e-lithium e-ternary yi-0.85-1 yuan/wh, futhi okwamanje zikhuphuka ngesidingo semakethe; izindleko zamabhethri e-lithium iron phosphate angenazo izakhi zensimbi eziyigugu zingaba ngu-0.58-0.6 yuan/wh kuphela.
isifinyezo
Njengoba "i-lithium iron phosphate" ingenayo izinsimbi eziyigugu ezifana ne-cobalt, intengo yayo iphindwe izikhathi ezingu-0.5-0.7 kuphela zamabhethri e-ternary lithium; Intengo eshibhile iyinzuzo enkulu ye-lithium iron phosphate.
Fingqa
Isizathu sokuthi kungani izimoto ezisebenza ngogesi ziye zachuma eminyakeni yamuva futhi zimelela isiqondiso sesikhathi esizayo sokuthuthukiswa kwezimoto, ukunikeza abathengi umuzwa ongcono kakhulu, ikakhulukazi ngenxa yokuthuthukiswa okuqhubekayo kobuchwepheshe bebhethri yamandla.
Isikhathi sokuthumela: Oct-28-2023
