Ndedzipi nzira dzekubvisa uye kudzokorodza mabhatiri e lithium iron phosphate? Pakati pemabhatiri e-lithium iron phosphate akavharwa, mabhatiri asina kukosha kwekushandiswa kwemasitepisi uye mabhatiri mushure mokunge masitepisi ashandiswa anopinda muchikamu chekuparadzanisa nekugadzirisa zvakare. Lithium iron phosphate mabhatiri akasiyana neeternary material mabhatiri pakuti haana simbi dzinorema uye anonyanya kushandiswa patsva kubva kuLi, P, uye Fe. Iko kukosha kwakawedzerwa kwezvigadzirwa zvakadzokororwa kwakaderera, uye nzira dzakaderera dzekugadzirisa zvakare dzinoda kugadzirwa.

Ndedzipi nzira dzekubvisa uye kudzokorodza mabhatiri e lithium iron phosphate?

Pakati pemabhatiri e-lithium iron phosphate akavharwa, mabhatiri asina kukosha kwekushandisa masitepisi uye mabhatiri mushure mekunge masitepisi ashandiswa anopinda disassembly uye recycling stage. Lithium iron phosphate mabhatiri akasiyana neeternary material mabhatiri pakuti haana simbi dzinorema uye anonyanya kushandiswa patsva kubva kuLi, P, uye Fe. Iko kukosha kwakawedzerwa kwezvigadzirwa zvakadzokororwa zvakaderera, uye nzira dzakaderera dzekugadzirisa zvakare dzinoda kugadzirwa. Pane kunyanya nzira mbiri dzekudzokorora: nzira yekupenda uye nzira yekudzidzira.

Lithium iron phosphate bhatiri

Kudhirowa nzira yekudzokorora nzira

Iyo yechinyakare yekudhirowa nzira yelithium iron phosphate bhatiri d inowanzopisa iyo electrode pakupisa kwakanyanya. Iyo kabhoni uye organic zvinhu mumagetsi emagetsi zvimedu zvinopiswa, uye madota asingabatike akasara anoongororwa sehupfu hwakatsetseka hune simbi uye simbi oxides. Iyo nzira ine hurongwa huri nyore, asi ine hurefu hwekugadzirisa maitiro uye yakaderera yakazara yekudzoreredza mwero wemafuta uye gasi.

Yakavandudzwa yekudhirowa kudzoreredza tekinoroji ndeyekubvisa iyo organic adhesive ne calcination, uye kupatsanura lithium iron phosphate powder kubva mualuminium foil kuti iwane lithium iron phosphate substance, uyezve kuwedzera huwandu hwakakodzera hwezvigadzirwa kuti uwane inodiwa molar ratio ye lithium, iron uye phosphorus. Synthesis yeitsva lithium iron phosphate nepamusoro tembiricha yakasimba chikamu nzira. Panyaya yemutengo, tsvina yelithium iron phosphate mabhatiri inogona kudzoserwa kuburikidza neyakagadziridzwa yekudhirowa nzira yakaoma nzira yekuwana mabhenefiti, asi maererano neiyi nzira yekudzokorodza, iyo ichangobva kugadzirwa lithium iron phosphate ine tsvina yakawanda uye kusagadzikana kushanda.

wet recycling process

Kunyorova kudzoreredzwa kwemabhatiri e-lithium iron phosphate kunonyanya kunyungudutsa maion esimbi mu lithium iron phosphate bhatiri kuburikidza neacid-base solution, uye inobvisa iyoni yakanyungudika kuita maokisijeni, munyu, zvichingodaro, vachishandisa nzira dzakaita sekunaya kwemvura, uye inoshandisa H2SO4, NaOH mukuita maitiro, H2O2 uye mazhinji emareagents. Iyo yekunyorova yekudzokorodza maitiro iri nyore, zvinodiwa zvemidziyo hazvina kukwirira, uye inokodzera kugadzirwa kweindasitiri-mwero. Nyanzvi dzakadzidza nzira huru yemarara lithium-ion bhatiri nzira muChina.

Iko kunyorova kudzokororwa kwe lithium iron phosphate mabhatiri anonyanya kupora zvakanaka. Paunenge uchishandisa nzira yekunyorova kudzoreredza lithium iron phosphate cathode, iyo aluminium foil ikozvino muunganidzi inofanira kutanga yakaparadzaniswa kubva kune anode inoshanda zvinhu. Imwe yenzira idzi ndeyekunyungudutsa muunganidzi wezvino nelye, iyo inoshanda haina kuita neiyo, uye iyo inoshanda inogona kuwanikwa kuburikidza nekusefa. Yechipiri ndeye organic solvent, iyo inogona kunyungudutsa inonamira PVDF, kupatsanura lithium iron phosphate cathode zvinhu kubva mualuminium foil, uye ipapo shandisa iyo aluminium foil kuita inotevera kugadzirisa pane inoshanda zvinhu. Iyo organic solvent inogona kushandiswazve mushure mekuita distillation. Zvichienzaniswa nenzira mbiri idzi, mbiri idzi dzine hushamwari hwezvakatipoteredza uye dzakachengeteka. Imwe yekudzoreredza kwe lithium iron phosphate mune anode kugadzirwa kwe lithium carbonate. Iyi nzira yekudzokorora ine mutengo wakaderera uye inogamuchirwa nemakambani akawanda e-lithium iron phosphate recycling, asi chikamu chikuru che lithium iron phosphate (zviri mukati 95%) hachina kushandiswa zvakare, zvichiita kuti kutambisa zviwanikwa.

Iyo yakanakira wet recycling nzira ndeyekushandura tsvina lithium iron phosphate cathode material kuita lithium salt and iron phosphate kuona kudzoreredzwa kwezvinhu zvese zveLi, Fe, uye P. Lithium iron phosphate inofanira kushandurwa kuita lithium salt and iron phosphate, uye ferrous iron inofanirwa kuve oxidized kune trivalent iron, uye iyo lithium inofanirwa kunyudzwa neasidhi tsono kana alkaline inonyudza mvura. Dzimwe nyanzvi dzakashandisa oxidative calcination kuti iparadzanise aluminium flakes uye lithium iron phosphate, uye yakazopinda nesulfuric acid kuti iparadzanise crude iron phosphate, uye yakashandisa mhinduro sesodium carbonate yekubvisa tsvina kuti iite kuti lithium carbonate.

Iyo filtrate inoputika uye yakakwenenzverwa neanhydrous sodium sulfate seyakagadzirwa. Crude iron phosphate inogona kucheneswazve bhatiri-giredhi iron phosphate uye inoshandiswa mukugadzirira kwe lithium iron phosphate zvinhu. Mushure memakore ekutsvakurudza, nzira iyi yave yakakura zvikuru.