Batire yamphamvu imatchedwa mtima wa galimoto yamagetsi; chizindikiro, zinthu, mphamvu, chitetezo, ndi zina zotero za batri ya galimoto yamagetsi zakhala zofunikira "miyeso" ndi "magawo" oyezera galimoto yamagetsi. Pakalipano, mtengo wa batri wa galimoto yamagetsi nthawi zambiri ndi 30% -40% ya galimoto yonse, zomwe tinganene kuti ndizofunika kwambiri!
Pakadali pano, mabatire amphamvu omwe amagwiritsidwa ntchito pamagalimoto amagetsi pamsika nthawi zambiri amagawidwa m'mitundu iwiri: mabatire a ternary lithiamu ndi mabatire a lithiamu iron phosphate. Kenako, ndiroleni ndiwunike mwachidule kusiyana ndi ubwino ndi kuipa kwa mabatire awiriwa:
1. Zida zosiyanasiyana:
Chifukwa chake amatchedwa "ternary lithiamu" ndi "lithium iron phosphate" makamaka amatanthauza zinthu za "electrode zabwino" za batri yamphamvu;
"Ternary lithiamu":
Zinthu za cathode zimagwiritsa ntchito lithiamu nickel cobalt manganate (Li(NiCoMn) O2) ternary cathode zakuthupi pamabatire a lithiamu. Nkhaniyi imaphatikiza ubwino wa lithiamu cobalt oxide, lithiamu nickel oxide ndi lithiamu manganenate, kupanga gawo lachitatu la eutectic dongosolo la zipangizo zitatu. Chifukwa cha ternary synergistic effect, magwiridwe ake athunthu ndiabwinoko kuposa kuphatikiza kulikonse.
"Lithium iron phosphate":
amatanthauza mabatire a lithiamu-ion omwe amagwiritsa ntchito lithiamu iron phosphate ngati zinthu za cathode. Makhalidwe ake ndikuti alibe zinthu zachitsulo zamtengo wapatali monga cobalt, mtengo wamtengo wapatali ndi wotsika, ndipo zinthu za phosphorous ndi chitsulo zimakhala zambiri padziko lapansi, choncho sipadzakhala mavuto.
mwachidule
Zida za Ternary lithiamu ndizosowa ndipo zikukwera ndi chitukuko chofulumira cha magalimoto amagetsi. Mitengo yawo ndi yokwera kwambiri ndipo imakhala yoletsedwa kwambiri ndi zinthu zakumtunda. Ichi ndi chikhalidwe cha ternary lithiamu pakali pano;
Lithium iron phosphate, chifukwa imagwiritsa ntchito chiŵerengero chochepa cha zitsulo zosawerengeka / zamtengo wapatali ndipo imakhala yotsika mtengo komanso yochuluka yachitsulo, ndiyotsika mtengo kusiyana ndi mabatire a ternary lithiamu ndipo sichikhudzidwa kwambiri ndi zipangizo zopangira mtsinje. Ichi ndi chikhalidwe chake.
2. Kuchulukana kwamphamvu kosiyanasiyana:
"Ternary lithiamu batri": Chifukwa chogwiritsa ntchito zitsulo zogwira ntchito kwambiri, kachulukidwe kake ka mabatire a ternary lithiamu nthawi zambiri amakhala (140wh/kg~160 wh/kg), omwe ndi otsika kuposa mabatire a ternary okhala ndi chiŵerengero chapamwamba cha nickel ( 160 w/kg～180 wh / kg); mphamvu zina zolemetsa zimatha kufika 180Wh-240Wh/kg.
"Lithium iron phosphate": Kuchuluka kwa mphamvu kumakhala 90-110 W/kg; mabatire ena amphamvu a lithiamu iron phosphate, monga mabatire a blade, amakhala ndi mphamvu zofikira 120W/kg-140W/kg.
mwachidule
Ubwino waukulu wa "ternary lithium batri" kuposa "lithium iron phosphate" ndikuchulukira kwake kwamphamvu komanso kuthamanga kwachangu.
3. Kusinthasintha kwa kutentha kosiyanasiyana:
Kutsika kwa kutentha:
Ternary lithiamu batire: Ternary lithiamu batire ali kwambiri otsika kutentha ntchito ndipo akhoza kusunga pafupifupi 70% ~ 80% ya mphamvu batire wamba pa -20°C.
Lithium iron phosphate: Osagonjetsedwa ndi kutentha kochepa: Pamene kutentha kuli pansi -10°C,
lithiamu iron phosphate mabatire amawola mwachangu kwambiri. Mabatire a lithiamu iron phosphate amatha kungosunga pafupifupi 50% mpaka 60% ya mphamvu ya batri yabwinobwino pa -20°C.
mwachidule
Pali kusiyana kwakukulu kwa kutentha pakati pa "ternary lithiamu batire" ndi "lithium iron phosphate"; "Lifiyamu iron phosphate" imalimbana ndi kutentha kwambiri; ndi otsika kutentha zosagwira "ternary lithiamu batire" ali bwino batire moyo kumadera kumpoto kapena yozizira.
4. Nthawi zamoyo zosiyanasiyana:
Ngati mphamvu yotsalayo / mphamvu yoyambira = 80% imagwiritsidwa ntchito ngati pomaliza mayeso, yesani:
Ma batire a lithiamu iron phosphate amakhala ndi moyo wautali wozungulira kuposa mabatire a lead-acid ndi mabatire a ternary lithiamu. "Moyo wautali kwambiri" wa mabatire athu opangidwa ndi lead-acid okhala ndi galimoto ndi pafupifupi nthawi 300 zokha; ternary lithiamu batire akhoza theoretically mpaka nthawi 2,000, koma ntchito kwenikweni, mphamvu adzakhala kuwola kwa 60% pambuyo pafupifupi 1,000 nthawi; ndipo moyo weniweni wa mabatire a lithiamu iron phosphate ndi nthawi 2000, akadali 95% mphamvu panthawiyi, ndipo moyo wake wamalingaliro umafika nthawi zoposa 3000.
mwachidule
Mabatire amphamvu ndiye pachimake patekinoloje yamabatire. Mitundu yonse iwiri ya mabatire a lithiamu ndi yolimba. Kunena mongoyerekeza, moyo wa batire ya ternary lithiamu ndi 2,000 charging ndi kutulutsa kozungulira. Ngakhale titalipira kamodzi patsiku, zitha kupitilira zaka zisanu.
5. Mitengo ndi yosiyana:
Popeza mabatire a lithiamu iron phosphate alibe zitsulo zamtengo wapatali, mtengo wazinthu zopangira ukhoza kuchepetsedwa kwambiri. Mabatire a lithiamu a Ternary amagwiritsa ntchito lifiyamu faifi tambala cobalt manganate monga zinthu zabwino elekitirodi ndi graphite monga negative elekitirodi chuma, choncho mtengo wake ndi okwera mtengo kwambiri kuposa lithiamu chitsulo phosphate mabatire.
The ternary lithiamu batire makamaka amagwiritsa ternary cathode zakuthupi "lithium faifi tambala cobalt manganate" kapena "lifiyamu faifi tambala cobalt aluminate" monga elekitirodi zabwino, makamaka ntchito faifi tambala mchere, cobalt mchere, ndi manganese mchere monga zopangira. "Cobalt element" muzinthu ziwiri za cathode ndi chitsulo chamtengo wapatali. Malingana ndi deta yochokera ku mawebusaiti oyenerera, mtengo wapakhomo wa zitsulo za cobalt ndi 413,000 yuan / toni, ndipo chifukwa cha kuchepa kwa zipangizo, mtengo ukupitirira kukwera. Pakalipano, mtengo wa ternary lithiamu mabatire ndi 0.85-1 yuan / wh, ndipo pakali pano ikukwera ndi kufunikira kwa msika; mtengo wa mabatire a lithiamu iron phosphate omwe alibe zinthu zachitsulo zamtengo wapatali ndi pafupifupi 0.58-0.6 yuan/wh.
mwachidule
Popeza "lithiamu iron phosphate" ilibe zitsulo zamtengo wapatali monga cobalt, mtengo wake ndi 0.5-0.7 nthawi za mabatire a ternary lithiamu; mtengo wotsika mtengo ndi mwayi waukulu wa lithiamu iron phosphate.
Fotokozerani mwachidule
Chifukwa chomwe magalimoto amagetsi akhala akuchulukirachulukira m'zaka zaposachedwa ndikuyimira tsogolo la chitukuko cha magalimoto, kupatsa ogula chidziwitso chabwinoko, makamaka chifukwa chakukula kosalekeza kwaukadaulo wa batri yamagetsi.
Nthawi yotumiza: Oct-28-2023
