Kuongororwa kwemaitiro ekugadzira uye maitiro ekusimudzira e cathode zvinhu zve lithium ion mabhatiri

Kuitwa kwe lithium bhatiri cathode zvinhu zvinokanganisa zvakananga kushanda kwe lithium ion bhatiri, uye mutengo wayo unotarisawo zvakananga mutengo webhatiri.Kune akawanda maindasitiri ekugadzirwa kwezvinhu zvecathode zvinhu, nzira yekubatanidza haina kuoma, uye kutonga kwekushisa, nharaunda, uye kusachena kwemukati zvakare kwakaomarara.Ichi chinyorwa chichasuma maitiro ekugadzira uye kusimudzira maitiro e lithium bhatiri cathode zvinhu.

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Lithium bhatiri zvinodiwa zvecathode zvinhu:

Simba repamusoro rakananga, simba rakananga, kushoma kuzviburitsa, mutengo wakaderera, hupenyu hurefu hwebasa uye kuchengetedzwa kwakanaka.

Lithium bhatiri cathode zvinhu kugadzirwa maitiro:

Iyo tekinoroji yecalcination inotora tekinoroji yekuomesa microwave yekuomesa iyo yakanaka electrode zvinhu zve lithium bhatiri, iyo inogadzirisa matambudziko ayo akajairwa lithium bhatiri positive electrode zvinhu zvekuomesa tekinoroji inotora nguva yakareba, inoita kuti capital turnover inonoke, kuomesa hakuna kuenzana, uye kuomesa kudzika hakuna kukwana.Iwo chaiwo maficha ndeaya anotevera:

1. Kushandisa microwave drying equipment ye lithium battery cathode material, inokurumidza uye inokurumidza, uye kuomeswa kwakadzika kunogona kupedzwa mumaminitsi mashomanana, izvo zvinogona kuita kuti hunyoro hwekupedzisira husvike kupfuura chiuru chimwe;

2. Kuomeswa kwakafanana uye kuoma kwehutano hwechigadzirwa hwakanaka;

3. Iyo cathode zvinhu zve lithium bhatiri inoshanda zvakanyanya, inochengetedza simba, yakachengeteka uye ine ushamwari kwezvakatipoteredza;

4. Haina inertia inopisa, uye kukurumidza kwekupisa kuri nyore kudzora.Iyo cathode zvinhu zve microwave sintered lithium bhatiri ine hunhu hwekukurumidza kupisa mwero, yakakwira simba rekushandisa, yakanyanya kupisa kunyatsoshanda, kuchengetedzeka, hutsanana uye kusvibiswa-isina kusvibiswa, uye inogona kuvandudza kufanana uye goho rechigadzirwa, nekuvandudza microstructure nekuita. yezvinhu zvakasvibiswa.

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General kugadzirira nzira ye lithium bhatiri cathode zvinhu:

1. Solid chikamu nzira

Kazhinji, lithium munyu senge lithium carbonate uye cobalt makomisheni kana nickel makomisheni anoshandiswa pakukuya nekusanganisa, uye ipapo sintering reaction inoitwa.Zvakanakira nzira iyi ndezvekuti nzira yacho iri nyore uye zvigadzirwa zvinowanikwa nyore.Iyo ndeye nzira yakave yakatsvakurudzwa zvakanyanya, yakagadzirwa uye yakagadzirwa mukutanga kwe lithium battery development, uye teknolojia yekune dzimwe nyika inenge yakakura;Kusagadzikana kwakashata uye kushomeka kwebatch-to-batch quality kuenderana.

2. Complex nzira

Iyo yakaoma nzira inoshandisa organic complex kutanga kugadzirira yakaoma precursor ine lithium ions uye cobalt kana vanadium ions, uye ipapo sinter kugadzirira.Zvakanakira nzira iyi kusanganisa kwema molecular-scale, kunaka kwezvinhu zvakafanana uye kugadzikana kwekuita, uye yakakwirira capacitance yeyakanaka electrode zvinhu pane yakasimba-chikamu nzira.Yakaedzwa kunze kwenyika senzira yeindasitiri yemabhatiri e lithium, asi tekinoroji haina kukura, uye kune mishumo mishoma muChina..

3. Sol-gel nzira

Kushandisa nzira yekugadzira ultrafine particles yakagadzirwa muma1970 kugadzirira iyo yakanaka electrode zvinhu, nzira iyi ine zvakanakira nzira yakaoma, uye yakagadzirwa electrode zvinhu zvine simba rakagadziridzwa zvikuru remagetsi, iro riri kukurumidza kukura kumba nekune dzimwe nyika.nzira.Izvo zvakashata ndezvekuti mutengo wakakwira, uye tekinoroji ichiri mudanho rekusimudzira.

4. Ion kuchinjana nzira

LiMnO2 yakagadzirwa neion exchange nzira yakawana yakakwira inodzoreredzwa yekuburitsa simba re270mA·h/g.Iyi nzira yave itsva hotspot yekutsvaga.Iine maitiro ekugadzikana kwe electrode performance uye high capacitance.Nekudaro, maitiro aya anosanganisira anopedza simba uye anotora nguva matanho akadai semhinduro recrystallization uye evaporation, uye kuchine chinhambwe chakati wandei kubva pakuita.

Iyo yekuvandudza maitiro e lithium bhatiri cathode zvinhu:

Sechikamu chakakosha chemabhatiri e lithium, simba renyika yangu lithium bhatiri cathode zvinhu indasitiri yakagadzira nekukurumidza.Nekuvandudzwa kweindasitiri yemotokari yemagetsi uye indasitiri yekuchengetera simba, zvinotarisirwa kuti lithium bhatiri cathode zvinhu indasitiri ichave iyo huru yekufambisa yekukura kweiyo cathode zvinhu indasitiri maererano neyakakamurwa lithium iron phosphate uye ternary zvinhu mu. ramangwana, uye richaunza mimwe mikana.nematambudziko.

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Mumakore matatu anotevera, mabhatiri e-lithium achachengetedza kugadzikana uye kuenderera mberi, uye iyo yose inoda mabhatiri e-lithium inotarisirwa kusvika 130Gwh muna 2019. Pamusana pekuwedzera kwekuwedzera kwe lithium battery application fields, lithium battery cathode zvinhu zvinoramba zvichikura uye kuwedzera. .

Kukura kuri kuputika kwemotokari dzemagetsi matsva kwaunza kusimudzira uye nekukurumidza kusimudzira kweiyo yakazara lithium bhatiri indasitiri.Inofungidzirwa kuti pasi rose lithium bhatiri cathode zvinhu zvinotarisirwa kudarika 300,000 matani muna 2019. Pakati pavo, ternary zvinhu zvichakura nokukurumidza, neavhareji gore negore mukomboni kukura mwero inopfuura 30%.Mune ramangwana, NCM neNCA inozova iyo huru yezvinhu zvemotokari cathode.Zvinotarisirwa kuti kushandiswa kwezvinhu zveternary kuchaverengera 80% yezvinhu zvemotokari muna 2019.

Lithium bhatiri ndiyo yeramangwana budiriro yebhatiri, uye yayo cathode zvinhu musika ine inovimbisa budiriro tarisiro.Panguva imwecheteyo, kukurudzirwa kwemafoni e-3G uye kushambadzira kukuru kwemotokari itsva yemagetsi kuchaunza mikana mitsva ye lithium battery cathode zvinhu.Lithium bhatiri cathode zvinhu zvine musika wakafara, uye tarisiro ine tarisiro huru.


Nguva yekutumira: Kubvumbi-18-2022