Kuchita kwa lithiamu batire cathode chuma mwachindunji zimakhudza ntchito ya lithiamu ion batire, ndipo mtengo wake komanso mwachindunji mwachindunji mtengo wa batire.Pali mafakitale ambiri kupanga zinthu cathode zipangizo, kaphatikizidwe njira ndi zovuta, ndi kulamulira kutentha, chilengedwe, ndi zonyansa zili ndi okhwima.Nkhaniyi atchule ndondomeko kupanga ndi kachitidwe chitukuko cha lithiamu batire cathode zipangizo.
Zofunikira za batri ya lithiamu pazinthu za cathode:
Mphamvu zenizeni zenizeni, mphamvu zenizeni zenizeni, kudziletsa pang'ono, mtengo wotsika, moyo wautali wautumiki komanso chitetezo chabwino.
Lithium batire cathode zinthu kupanga ndondomeko:
The luso calcination utenga latsopano mayikirowevu kuyanika luso kuti ziume zabwino elekitirodi zakuthupi lifiyamu batire, amene amathetsa mavuto kuti ochiritsira lifiyamu batire zabwino elekitirodi zinthu kuyanika luso zimatenga nthawi yaitali, zimapangitsa likulu zolowa pang'onopang'ono, kuyanika ndi wosagwirizana, ndi kuyanika kuya sikokwanira.Zomwe zimapangidwira ndi izi:
1. Pogwiritsa ntchito zipangizo zoyanika za microwave kwa zinthu za lithiamu batire cathode, ndizofulumira komanso mofulumira, ndipo kuyanika kwakuya kumatha kutha mumphindi zochepa, zomwe zingapangitse kuti chinyezi chomaliza chifike kupitirira chikwi chimodzi;
2. Kuyanika ndi yunifolomu ndipo kuyanika kwa mankhwala ndi kwabwino;
3. Zida za cathode za batri ya lithiamu zimakhala zogwira mtima kwambiri, zopulumutsa mphamvu, zotetezeka komanso zachilengedwe;
4. Ilibe inertia yotentha, ndipo kutentha kwachangu kumakhala kosavuta kulamulira.The cathode chuma cha mayikirowevu sintered lifiyamu batire ali ndi makhalidwe a liwiro Kutentha Kutentha, mlingo mkulu mphamvu magwiritsidwe, mkulu Kutentha dzuwa, chitetezo, ukhondo ndi kuipitsidwa-free, ndipo akhoza kusintha yunifolomu ndi zokolola za mankhwala, ndi kusintha microstructure ndi ntchito. wa zinthu sintered.
General kukonzekera njira ya lithiamu batire cathode zakuthupi:
1. Njira yokhazikika
Nthawi zambiri, mchere wa lithiamu monga lithiamu carbonate ndi cobalt mankhwala kapena nickel mankhwala amagwiritsidwa ntchito pogaya ndi kusakaniza, ndiyeno sintering reaction ikuchitika.Ubwino wa njirayi ndikuti njirayi ndi yosavuta komanso zopangira zimapezeka mosavuta.Ndi njira yomwe yafufuzidwa kwambiri, yopangidwa ndi kupangidwa kumayambiriro kwa chitukuko cha batri la lithiamu, ndipo teknoloji yachilendo imakhala yokhwima;Kusakhazikika bwino komanso kusasinthasintha kwabwino kwa batch-to-batch.
2. Njira yovuta
Njira yovuta imagwiritsa ntchito organic complex kuti ikonzekere kalambulabwalo wovuta wokhala ndi lithiamu ion ndi cobalt kapena vanadium ions, ndiyeno sinter kukonzekera.Ubwino wa njirayi ndi kusanganikirana kwa ma molekyulu, kufananiza kwazinthu zabwino komanso kukhazikika kwa magwiridwe antchito, komanso kuthekera kwakukulu kwazinthu zabwino zama elekitirodi kuposa njira yolimba.Zayesedwa kunja ngati njira yopangira mafakitale a mabatire a lithiamu, koma teknoloji siinakhwima, ndipo pali malipoti ochepa ku China..
3. Sol-gel osakaniza njira
Pogwiritsa ntchito njira yokonzekera ma ultrafine particles omwe amapangidwa m'ma 1970 kuti akonze zinthu zabwino za elekitirodi, njira iyi ili ndi ubwino wa njira yovuta, ndipo zinthu zokonzekera electrode zimakhala ndi mphamvu zamagetsi, zomwe zikukula mofulumira kunyumba ndi kunja.njira.Choyipa ndichakuti mtengo wake ndi wokwera, ndipo ukadaulo udakali pachitukuko.
4. Njira yosinthira ion
LiMnO2 yokonzedwa ndi njira yosinthira ion yapeza kutulutsa kwakukulu kosinthika kwa 270mA·h/g.Njirayi yakhala malo atsopano ofufuza.Ili ndi mawonekedwe a magwiridwe antchito okhazikika a elekitirodi komanso kuthekera kwakukulu.Komabe, njirayi imaphatikizapo njira zowonongera mphamvu komanso zowononga nthawi monga yankho la recrystallization ndi evaporation, ndipo pakadali mtunda wochuluka kuchokera pakuchita.
Kukula kwa zida za lithiamu batri cathode:
Monga gawo lofunika kwambiri la mabatire a lithiamu, dziko langa lamphamvu lifiyamu batire cathode chuma makampani apanga mofulumira.Ndi chitukuko cha mafakitale amphamvu galimoto galimoto ndi mafakitale mphamvu yosungirako, zikuyembekezeka kuti lifiyamu batire cathode chuma makampani adzakhala waukulu galimoto mphamvu ya kukula kwa makampani cathode chuma mwa mawu ogawa lifiyamu chitsulo mankwala ndi zipangizo ternary mu m'tsogolo, ndipo adzapereka mwayi wochuluka.ndi zovuta.
M'zaka zitatu zikubwerazi, mabatire a lithiamu adzakhalabe okhazikika komanso okhazikika, ndipo chiwerengero cha mabatire a lithiamu chikuyembekezeka kufika 130Gwh mu 2019. .
Kukula kwamphamvu kwa magalimoto amagetsi atsopano kwadzetsa chitukuko chokhazikika komanso chachangu chamakampani onse a lithiamu batire.Akuti padziko lonse lifiyamu batire cathode zipangizo akuyembekezeka upambana matani 300,000 mu 2019. Pakati pawo, zipangizo ternary adzakhala mofulumira, ndi avareji pachaka pawiri kukula mlingo woposa 30%.M'tsogolomu, NCM ndi NCA zidzakhala zida zopangira ma cathode zamagalimoto.Zikuyembekezeka kuti kugwiritsidwa ntchito kwa zida zamagalimoto kudzatenga pafupifupi 80% yazinthu zamagalimoto mu 2019.
Batire ya Lithium ndiye njira yakutsogolo ya batri, ndipo msika wake wazinthu za cathode uli ndi chiyembekezo cha chitukuko.Panthawi imodzimodziyo, kukwezedwa kwa mafoni a m'manja a 3G ndi malonda akuluakulu a magalimoto atsopano amphamvu adzabweretsa mwayi watsopano wa zida za lithiamu batire cathode.Zida za lithiamu batire cathode zili ndi msika wotakata, ndipo ziyembekezo zake ndizabwino kwambiri.
Nthawi yotumiza: Apr-18-2022