Zoyipa za batri ya lithiamu iron phosphate
Kaya chinthucho chikhoza kugwiritsidwa ntchito ndi chitukuko, kuwonjezera pa ubwino wake, chinsinsi ndi chakuti zinthuzo zili ndi zolakwika zazikulu.
Pakali pano, lifiyamu chitsulo mankwala ambiri anasankha monga zinthu cathode mphamvu lithiamu-ion mabatire mu China.Ofufuza zamsika kuchokera ku maboma, mabungwe ofufuza zasayansi, mabizinesi komanso makampani achitetezo ali ndi chiyembekezo pankhaniyi ndipo amawona ngati njira yopangira mabatire a lithiamu-ion.Malinga ndi kusanthula zifukwa, pali makamaka mfundo ziwiri zotsatirazi: Choyamba, chifukwa cha chikoka cha kafukufuku ndi chitukuko malangizo mu United States, Valence ndi A123 makampani mu United States choyamba ntchito lithiamu chitsulo mankwala monga zinthu cathode. mphamvu ya mabatire a lithiamu-ion.Kachiwiri, zida za lithiamu manganate zokhala ndi njinga yabwino yokwera kwambiri komanso kusungirako zomwe zingagwiritsidwe ntchito pamagetsi a lithiamu-ion mabatire sizinakonzedwe ku China.Komabe, lithiamu iron phosphate ilinso ndi zolakwika zazikulu zomwe sizinganyalanyazidwe, zomwe zitha kufotokozedwa mwachidule motere:
1. Mu njira yopangira sintering ya lithiamu iron phosphate kukonzekera, ndizotheka kuti iron oxide ikhoza kuchepetsedwa kukhala chitsulo chosavuta pansi pa kutentha kwambiri kuchepetsa mpweya.Iron, chinthu chomwe chimakhala chovuta kwambiri m'mabatire, chimatha kuyambitsa ma batire ang'onoang'ono.Ichi ndi chifukwa chachikulu chimene Japan sanagwiritse ntchito nkhaniyi monga cathode chuma mtundu mphamvu lithiamu ion mabatire.
2. Lithium iron phosphate ili ndi zolakwika zina, monga kutsika kwapang'onopang'ono ndi kachulukidwe kachulukidwe, zomwe zimapangitsa kutsika kwamphamvu kwa batri ya lithiamu ion.Kuchita kwa kutentha kwapansi kumakhala kosauka, ngakhale kuti nano - ndi zokutira za carbon sizithetsa vutoli.Pamene Dr. Don Hillebrand, mkulu wa Energy Storage System Center ya Argonne National Laboratory, analankhula za otsika kutentha ntchito lifiyamu chitsulo mankwala batire, iye anafotokoza kuti zoipa.Zotsatira zawo zoyesa pa batire ya lithiamu iron phosphate zidawonetsa kuti batire ya lithiamu iron phosphate sakanatha kuyendetsa magalimoto amagetsi pa kutentha kochepa (pansi pa 0 ℃).Ngakhale opanga ena amanena kuti mphamvu posungira mlingo wa lithiamu chitsulo mankwala batire ndi zabwino pa kutentha otsika, ndi pansi pa chikhalidwe otsika kumaliseche panopa ndi otsika kumaliseche odulidwa voteji.Pankhaniyi, zida sizingayambike konse.
3. Mtengo wokonzekera zipangizo ndi mtengo wopangira mabatire ndi apamwamba, zokolola za mabatire ndizochepa, ndipo kusasinthasintha kumakhala kovutirapo.Ngakhale kuti mphamvu zamagetsi zazinthuzo zasinthidwa ndi nanocrystallization ndi zokutira mpweya wa lithiamu iron phosphate, mavuto ena abweranso, monga kuchepetsa kachulukidwe ka mphamvu, kuwongolera mtengo wa kaphatikizidwe, kusagwira bwino ntchito kwa electrode processing ndi nkhanza zachilengedwe. zofunika.Ngakhale kuti mankhwala a Li, Fe ndi P mu lithiamu iron phosphate ndi olemera kwambiri ndipo mtengo wake ndi wotsika, mtengo wa mankhwala okonzedwa a lithiamu iron phosphate siwotsika.Ngakhale mutachotsa ndalama zoyamba za kafukufuku ndi chitukuko, mtengo wa ndondomeko ya nkhaniyi kuphatikizapo mtengo wapamwamba wokonzekera mabatire udzapangitsa kuti mtengo womaliza wa kusungirako mphamvu wa unit ukhale wapamwamba.
4. Kusasinthika kwazinthu.Pakali pano, palibe lifiyamu chitsulo mankwala chuma fakitale China angathe kuthetsa vutoli.Kuchokera pamalingaliro akukonzekera zakuthupi, kaphatikizidwe ka lifiyamu chitsulo phosphate ndizovuta kwambiri, kuphatikiza phosphate olimba, chitsulo okusayidi ndi lithiamu mchere, kalambulabwalo wa carbon ndi kuchepetsa gawo la mpweya.M'njira yovutayi, zimakhala zovuta kutsimikizira kugwirizana kwa zomwe zimachitika.
5. Nkhani zanzeru.Pakadali pano, setifiketi yoyambira ya lithiamu iron phosphate ndi ya University of Texas ku United States, pomwe patent yokhala ndi kaboni imagwiritsidwa ntchito ndi aku Canada.Ma Patent awiriwa sangalambalale.Ngati malipiro a patent aphatikizidwa pamtengo, mtengo wamalondawo udzawonjezekanso.
Komanso, kuchokera zinachitikira R & D ndi kupanga mabatire lifiyamu-ion, Japan ndi dziko loyamba malonda lithiamu-ion mabatire, ndipo nthawizonse otanganidwa mkulu-mapeto batire msika lifiyamu-ion.Ngakhale kuti United States ikutsogolera kafukufuku wina wofunikira, mpaka pano palibe wopanga batri wamkulu wa lithiamu ion.Choncho, n'zomveka kuti Japan asankhe kusinthidwa lifiyamu manganate monga zinthu cathode mphamvu mtundu lithiamu ion batire.Ngakhale ku United States, theka la opanga amagwiritsa ntchito lithiamu iron phosphate ndi lithiamu manganenate monga zida za cathode zamtundu wa mabatire a lithiamu ion, ndipo boma limathandiziranso kafukufuku ndi chitukuko cha machitidwe awiriwa.Poganizira mavuto omwe ali pamwambawa, lithiamu iron phosphate ndizovuta kuti zigwiritsidwe ntchito ngati zida za cathode zamabatire a lithiamu-ion m'magalimoto atsopano amagetsi ndi madera ena.Ngati tingathe kuthetsa vuto la kusauka kwapang'onopang'ono kwapang'onopang'ono komanso kusungirako ntchito ya lithiamu manganate, idzakhala ndi kuthekera kwakukulu pakugwiritsa ntchito mabatire a lithiamu-ion mphamvu ndi ubwino wake wa mtengo wotsika komanso ntchito yapamwamba.
Nthawi yotumiza: Oct-19-2022