Tsvagiridzo inofambira mberi pane yekudzoreredza tekinoroji yemarara phosphate ion bhatiri rekudzoreredza tekinoroji

ଲେଖକ: ଆଇଫ୍ଲୋପାୱାର - Mea Hoolako Uku Uku

Muna 2010, nyika yangu yakatanga kusimudzira magetsi matsva emotokari. Muna 2014, kubuda kwekuputika kunokwira, kutengeswa kwe2017 kweanosvika 770,000 mota. Bhazi, bhazi, nezvimwewo.

, yakavakirwa pa lithium iron phosphate ion mabhatiri, tarisiro yehupenyu ndeye makore masere. Iko kuenderera mberi kusimuka kwemotokari nyowani dzemagetsi kuchave nekuputika kwesimba relithium bhatiri mune ramangwana. Kana nhamba huru yebhatiri yakabviswa isina kugadziriswa kwakakodzera, ichaunza kusvibiswa kwakakomba kwezvakatipoteredza uye kupera kwesimba, nzira yekugadzirisa bhatiri remarara Dambudziko guru iro vanhu vane hanya.

Zvinoenderana nehuwandu hwenyika yangu yelithium-powered lithium bhatiri indasitiri, kudiwa kwepasi rose dynamic lithium bhatiri muna 2016 i41.6GW H, uko LFP, NCA, NCM uye LMO&39;s mana akakosha mabhatiri e-lithium-ion mabhatiri ari 23.9GW · h, zvichiteerana.

5.5GW · h, 10.5GW · h uye 1.

7GW · h, Lifepo4 bhatiri inogara 57.4% yemusika, NCA neNCM maviri makuru matatu-dimensional system simba lithium bhatiri yakazara inodiwa yakaverengerwa 38.5% yezvese zvinodiwa.

Pamusana pehuwandu hwehuwandu hwemagetsi matatu-yuan, 2017 Sanyuan Power Lithium Battery ndeye 45%, uye lithium iron battery i49% ye lithium battery. Parizvino, iyo yakachena yemagetsi yemutakuri mota ndeyese mabhatiri e-lithium iron phosphate ion, uye iron phosphate dynamic lithium bhatiri ndiyo inonyanya kuita bhatiri system muindasitiri yekutanga. Naizvozvo, nguva yekubvisa kweiyo lithium iron phosphate ion bhatiri ichatanga kusvika.

Kudzokororwa kwemabhatiri emarara eLifePo4 hakungogone kuderedza kudzvinyirirwa kwezvakatipoteredza kunokonzerwa nehuwandu hwemarara, asi kunounza zvikomborero zvakakura zvehupfumi, izvo zvichabatsira mukuenderera mberi kwekusimudzira kweindasitiri yose. Ichi chinyorwa chichagadzirisa mutemo wenyika ikozvino, mutengo wakakosha wemarara, LifePo4 mabhatiri, nezvimwe. Pahwaro uhwu, kwakasiyana-siyana kudzokorodza, nzira dzekushandisa zvakare, electrolyte, electrolyte, electrolyte, electrolyte uye negative electrode zvinhu, uye inoreva chiyero chekudzoreredza chekupa chinongedzo cheLIFEPO4 mabhatiri.

1 Waste Battery Recycling Policy Nekuvandudzwa kweindasitiri yenyika yangu yelithium-ion bhatiri, kudzokorodza kunobudirira nekugadzirisa mabhatiri akashandiswa idambudziko rine hutano iro indasitiri inogona kuramba ichigadzira. Chiziviso che "Energy Saving uye New Energy Automobile Industry Development Plan (2012-2020)" inotaurwa zvakajeka kuti yakagadziridzwa simba lithium bhatiri danho rekushandisa uye kudzoreredza manejimendi, kuvandudzwa kwesimba re lithium bhatiri recycling manejimendi nzira, kutungamira simba lithium bhatiri kugadzirisa Kambani inosimudzira kudzokorodza kwemarara mabhatiri. Nedambudziko riri kuwedzera reiyo simba lithium bhatiri kudzoreredza, nyika nenzvimbo dzakazivisa kuvandudzwa kwemitemo yakakodzera, zvimiro uye kutariswa kweindasitiri yekudzokorodza mumakore achangopfuura.

Mitemo yenyika yakakosha mukudzokorodza mabhatiri munyika inoratidzwa muTafura 1. 2 Waste LifePO4 Battery Recycling Yakakosha Component Lithium Ion Battery Structure Kazhinji inosanganisira a positive electrode, a negative electrode, electrolyte, diaphragm, imba, chivharo, nezvimwe zvakadaro, umo maelectrode material ndiyo musimboti welithium ion bhatiri, uye iyo yakanaka electrode zvinhu inodarika mutengo webhatiri% inodarika makumi matatu. Tafura 2 zvinhu zvebatch ye5A · h ronda LifePO4 mabhatiri muGuangdong Province (1% yakasimba yezvinyorwa mutafura).

Inogona kuonekwa kubva kuTable 2, iyo lithium positive electrode phosphate, iyo yakaipa graphite, electrolyte, diaphragm ndiyo yakakura, foil yemhangura, aluminium foil, carbon nanotubes, acetylene dema, conductive graphite, PVDF, CMC. Maererano neShanghai mavara mambure kupa (Chikumi 29, 2018), aruminiyamu: 1.4 miriyoni yuan / tani, mhangura: 51,400 yuan / tani, lithium iron phosphate: 72,500 yuan / tani; maererano nenyika yangu simba rekuchengetedza simba uye bhatiri network Maererano nemishumo, general graphite negative electrode material ndeye (6-7) mamiriyoni / tani, mutengo we electrolyte (5-5).

5) mamiriyoni / matani. Huwandu hukuru hwezvinhu, mutengo wakakwira, chinhu chakakosha chekudzokorodza ikozvino kwemabhatiri akashandiswa, uye yakadzoreredza mhinduro yekufunga nezve hupfumi uye mabhenefiti ezvakatipoteredza. 3 Waste LifePO4 Material Recycling Technology 3.

1 Chemical Precipitation Law Recycling Technology Parizvino, kemikari inonaya kunyorova kupora inzira yakasimba yekudzokorodzazve mabhatiri emarara. Iwo oxides kana munyu weLi, Co, Ni, nezvimwe. anodzoserwa nekubatana-kunaya, uyezve makemikari zvigadzirwa.

Iyo fomu inoitwa, uye nzira yekunaya kwemakemikari inzira yakakosha kune yazvino maindasitiri ekudzoreredza kwe lithium cobaltate uye matatu-dimensional tsvina bhatiri. Nezve LiFePO4 zvinhu, kuparadzanisa nzira yekunaya nepamusoro tembiricha calcination, alkali dissolution, acid leaching, nezvimwewo, kudzoreredza kukosha kwakanyanya kwehupfumi hweLi elements, uye panguva imwe chete inogona kudzoreredza simbi nedzimwe simbi, shandisa NaOH alkali mhinduro yekunyungudutsa iyo yakanaka electrode, saka Iyo yakaunganidzwa aruminiyamu foil inopinda mumhinduro muNaal sulfuri ine firiji, yakanyungudutswa ine firiti. kuwana Al (OH) 3, uye kupora kwaAl.

Iyo sefa yakasara iLiFePO4, conductive agent kabhoni dema uye LiFePO4 zvinhu zvepasi zvakavharwa kabhoni, nezvimwe. Pane nzira mbiri dzekudzokororazve LifePO4: Iyo nzira inoshandiswa kunyungudutsa slag nehydrogen sulfuric acid kunyungudutsa slag ne hydroxide, kuitira kuti mhinduro muFe2 (SO4) 3 uye Li2SO4, iyo filtrate mushure mekuparadzaniswa kwekabhoni tsvina inogadziriswa neNaOH uye ammonia mvura, tanga kuita iron Feciecidus precipita3, 3 mhinduro yeNaOH, 3, 3, 3, 2000. Li2CO3; nzira 2 inobva paFEPO4 microolysis mu nitric acid, nyungudutsa iyo yakanaka electrode zvinhu sefa zvakasara ne nitric acid uye hydrogen peroxide, kutanga kuumba FEPO4 precipitate, uye pakupedzisira kunaya mu Fe (OH) 3, The residual acid solution precipitates Li2CO3 for saturated Na2CO3 solution, Fepitation yeAl, Fepitation yeAl, Fepitation yeAl, uye Fepitation yeAl. Li et al [6], yakavakirwa paLIFEPO4 muH2SO4 + H2O2 yakasanganiswa mhinduro, Fe2 + inoiswa oxidized muFe3 +, uye inogadzira FEPO4 inonaya ine PO43-inosunga, inodzoreredza simbi Fe uye yakaparadzaniswa kubva kuLi, zvichienderera zvichibva pa3LI2SO4 + 2NA3PO4 → 3NA3PO4, gadzira ◄ ℃, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2 SO4 unganidza, ziva kupora kwesimbi Li.

Iyo oxidizing zvinhu inonyungudika nyore nyore muHCl solution, WANG, nezvimwewo, LiFePO4 / C yakasanganiswa poda yakakanyiwa pa600 ° C, kuve nechokwadi chekuti feri ion yakanyatso kunyungudika, uye solubility yeLiFePO4 inonyungudika muasidhi, uye kudzoreredza kweLi ndeye 96%. Recycled LifePO4 kuongororwa Mushure mekuwana precursor FePO4 · 2H2O uye Li sosi, synthesizing LiFepo4 zvinhu inzvimbo inopisa yekutsvagisa, ZHENG et al [8] yakakwirira tembiricha mhinduro kune electrode sheet, inobvisa iyo binder uye kabhoni kuti iite oxidize LIFEPO4 Fe2 + kuFe3 +, skrini Iyo poda yakawanikwa yakanyungudutswa kuti iwane acid yakanyungudika, sulfuric acid yakanyungudutswa mu sulfuric acid. FEPO4 hydrate, uye 5 h yakawanikwa pa 700 ° C kwemaawa mashanu kuti iwane FEPO4 yekudzoreredza chigadzirwa, uye iyo filtrate yakaiswa neNa2CO3 mhinduro yekunaya Li2CO3, uye kuziva simbi.

Recycle. Bian et al. mushure me pyrochlorination ne phosphoric acid ne phosphoric acid, inoshandiswa kuwana FEPO4 · 2H2O, uye sechinhu chinotangira, Li2CO3 uye glucose carbon thermal kuderedza nzira yekugadzira LIFEPO4 / C composite, uye Li mukugadzirisa zvinhu zvakakonzerwa muLIH2PO4.

, Ziva kupora kwezvinhu, uye wozoshandisa. Iyo kemikari yekunaya kwemakemikari nzira inogona kushandiswa kusanganisa kudzoreredza kwakanaka kwesimbi dzinobatsira, uye nhanganyaya inoda yakaderera pamberi pemarara, inova mukana werudzi urwu rwenzira. Zvisinei, kune LifePO4 zvinhu zvisina cobalt uye mamwe masimbi anokosha, iyo nzira iri pamusoro apa inowanzova yakareba, uye yakawanda yekuberekwa Kukanganisa kwehuwandu hweasidhi uye alkali tsvina yemvura, mari yepamusoro yekudzorera.

3.2 High Temperature yakasimba chikamu chekugadzirisa tekinoroji yakavakirwa pakuora kweLIFEPO4 bhatiri uye kuchaja uye kuburitsa hunhu hweiyo yakanaka electrode zvinhu, chimiro cheyakanaka LIFEPO4 zvinhu yakagadzikana, uye kurasikirwa kwechiitiko Li ndechimwe chezvinhu zvakakosha zvekudzikisa simba rebhatiri, saka iyo LIFEPO4 zvinhu inoonekwa seyakazadzikiswa yakatwasuka yeLI uye zvimwe zvingango gadzirisa zvinhu. Parizvino, iyo yakakosha yekugadzirisa nzira ine yakatwasuka yakakwirira tembiricha kugadzirisa uye kuwedzera inoenderana element sosi.

Kupisa kwepamusoro kunogadziriswa, uye kushandiswa kwe electrochemical zvimiro zvekudzoreredza zvinhu nekumurging, supplemental element sources, nezvimwe. Xie Yinghao, nezvimwewo. Mushure mekubvisa bhatiri remarara, kupatsanura iyo yakanaka electrode, mushure mekunge binder yaiswa carbonized nekupisa pasi pe nitrogen kuchengetedza, iyo phosphate-lithium iron-based positive material.

Nhamba yeFEC2O4 · 2H2O, Li2CO3, (NH4) 2HPO4 yakarongeka Li, Fe, uye P molar ratio yakawedzerwa ku1.05: 1: 1, uye carbon content ye calcined reactant yakagadziridzwa ku3%, 5%. Uye 7%, achiwedzera zvakakodzera mari anhydrous ethanol muzvinhu (600R / min) bhora milling kuti 4 h, uye nitrogen mhepo inodziyirwa 700 ° C nguva dzose tembiricha 24H roast LIFEPO4 zvinhu nokuda 10 ° C / min.

Nekuda kweizvozvo, iyo inogadzirisa zvinhu ine kabhoni ye5% ine optimal electrochemical properties, uye yekutanga discharge ratio ye148.0mA · h / g; 1C pasi pe0.1 C inguva makumi mashanu, chiyero chekuchengetedza simba i98.

9%, uye kudzoreredza ndiko Kugadzirisa Maitiro Ona Mufananidzo 4. Song et al. Inotora chikamu chakasimba chekushisa kwakanyanya kushandiswa kweiyo yakatwasuka yakasanganiswa LifePo4, apo huwandu hwehuwandu hweiyo doped nyowani uye tsvina yekudzoreredza zvinhu iri 3: 7,700 ° C yakakwirira tembiricha 8h mushure me8h kugadzirisa zvinhu electrochemical kuita kwakanaka.

Li et al. Inoshandiswa kuwedzera Li Source Li2CO3 kune recycled LIFEPO4 zvinhu pa 600 ° C, 650 ° C, 700 ° C, 750 ° C, 800 ° C mu argon / hydrogen yakasanganiswa gasi. Yekutanga kuburitsa simba rezvinhu ndeye 142.

9mA · h / g, iyo yakakwana yekugadzirisa tembiricha ndeye 650 ° C, yekutanga kuburitsa simba rekugadzirisa zvinhu ndeye 147.3mA · h / g, iyo inovandudzwa zvishoma, uye magnification uye kutenderera kwekuita kwakagadziridzwa. Chidzidzo che 都成, inozivisa kuti Li2CO3 yakawedzerwa ne10% kutambisa zvinhu zvakanaka zve electrode inogona kunyatso kutsiva kurasikirwa kwelithium recyclant, uye iyo yakaderedzwa zvinhu mushure mekugadzirisa zvinhu ndeye 157 mA, zvichiteerana.

H / g uye 73mA · h / g, huwandu hwacho hunenge husina attenuation mushure memazana mazana maviri pasi pe0.5C. Kuwedzerwa kwe20% yeLi2CO3 kunokonzeresa oligants seLi2CO3 Meng Li2O panguva yekubikira kugadzirisa maitiro, zvichikonzera yakaderera coulombic kunyatsoshanda.

Tembiricha yakakwira yakasimba chikamu chekugadzirisa tekinoroji inongowedzera huwandu hushoma hweLi, Fe, P element, haina huwandu hukuru hweasidhi-base reagent, inomera tsvina acid tsvina alkali, nzira inoyerera iri nyore, ine hushamwari kwezvakatipoteredza, asi kuchena zvinodiwa zvekudzoreredza mbishi zvinhu zvakakwirira. Kuvapo kwetsvina kunoderedza electrochemical zvinhu zvekugadzirisa zvinhu. 3.

3 Kupisa kwakanyanya kusimba chikamu chekuvandudza tekinoroji yakasiyana neyakakura-tembiricha yakasimba chikamu chinyoreso chakananga kugadzirisa tekinoroji, uye tembiricha yekuvandudza tembiricha inotanga kugadzirisa zvinhu zvekudzoreredza kuti ive neinotangira ine chekuita chiitiko, uye chimwe nechimwe chinhu chinogona kudzokororwazve, uye chobva chaona kuberekazve kwechinhu. 都成 等 3 极 片 分 3 分 分 3 2 2 分 分 2 2 2 2 2 2 2 正 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2材料 2 材料 2 2 Uye chikamu chikuru chiri 25% glucose (yakabva pa lithium iron phosphate), iyo yakagadziridzwa LIFEPO4 / C yakanaka electrode zvinhu inowanikwa pa 650 ° C, uye zvinhu zviri mu 0.1c uye 20c uye chiyero chekubuda chinoenderana.

Ndiyo 159.6mA · h / g uye 86.9mA · h / g, mushure mekukura kwe10C, mushure memazana zana, simba rekuchengetedza reservoir regeneration yeLIFEPO4 yakanaka electrode zvinhu ndeye 91%.

Nezvinyorwa zviri pamusoro apa, munyori wechinyorwa ichi akaita tsvina yeLifePO4 zvinhu mukutanga, "oxidation-carbon-thermal reduction" nzira yekuvandudza. Nzira yekuberekwa patsva yakakosha kubva kuCo reduction FEPO4 uye LiOH precursor synthesis yeLiFePO4 zvinhu zveLi3FE2 (PO4) 3 uye Fe2O3, nepo LIFEPO4 oxidation iriwo Li3FE2 (PO4) 3 uye Fe2O3, uye naizvozvo, mushonga wekupisa uchadzorerwa. Iyo yakanaka electrode inobviswa kubva mubhainda uye zvakare inoona oxidation yeLIFEPO4.

Sezvinoita regenerative reaction material, is glucose, a hydrated citric acid, polyethylene glycol, 650--750 ° C high-temperature carbon heat reduction regeneration LIFEPO4, katatu kuderedzwa Zvose kuvandudzwa kweLIFEPO4 / C zvinhu zvisina tsvina zvinogona kuwanikwa. High tembiricha yakasimba chikamu regeneration tekinoroji, iyo yakadzoserwa LIFEPO4 zvinhu inoiswa oxidized kune reaction yepakati, uye kuvandudzwa kweLIFEPO4 zvinhu zvinowanikwa nekabhoni thermal kuderedzwa, uye zvinyorwa zvine yunifomu oxidation uye carbon thermal kuderedza thermodynamic process, uye regenerative zvinhu zvinogona kudzora kushorwa, process kuyerera Iri Nyore, asi, yakafanana neyakakura, iyi tembiricha yakasimba nzira yekugadzirisa uye kugadzirisa tekinoroji. zvinhu zvinodiwa. 3.

4 Biological leaching tekinoroji. Biological leaching tekinoroji Mukudzoreredza bhatiri rekare, kushandiswa kwekutanga kwenickel-cadmium marara mabhatiri akadzosa cadmium, nickel, iron, Cerruti, nezvimwewo, yakanyungudutswa, yakaderedza tsvina nickel-cadmium bhatiri, kupora, 100% zvichiteerana. Nickel 96.

5%, iron 95%, yakanyungudika leaching nguva mazuva makumi mapfumbamwe nematatu. XIN nevamwe. Inoshandisa sulfur-sulfide thiobacillus, Caucite-Rotel hook-side spiral bacteria uye (sarufa + yero iron ore - sulfur sulfurium) mixing system kugadzirisa LiFepo4, LiMn2O4, LiniXCoyMN1- X-YO2, umo thiosidide thiosidide thiobacillus ye9Fecillus chiyero, 4 thiobacillus system uye 9 Fepocillus system. LiMn2O4 muLiFePO4 i95%, uye chiyero cheMn 96%, uye Mn inogadziriswa.

Musanganiswa uri pamusoro pe95% yeyunifomu leaching rate yeLi, Ni, Co, uye Mn maererano neLi, Ni, Co, uye Mn maererano nematemu ezvinyorwa. Kuparara kweLi kunokosha nekuda kwekuparara kweH2SO4, uye kuparara kweNi, Co, uye Mn ndeye Fe2 + kuderedza uye asidi dissolution composite kushandiswa. Mubiological leaching tekinoroji, kutenderera kwebiofushes kunofanirwa kurimwa, uye nguva yekunyungudika leaching yakareba, uye panguva yekunyungudutswa, maruva anogadziriswa nyore, achidzikamisa tekinoroji mukushandiswa kwemaindasitiri.

Naizvozvo, wedzera kuvandudza tsika yevelocity yematambudziko, adsorbing simbi ion kumhanya, nezvimwewo, kuvandudza chiyero cheleaching yesimbi ions. 3.

5 Mechanical activation Gadzirisa Kudzokorodza Unyanzvi hwemakemikari activation inogona kukonzera shanduko yemuviri neyekemikari mune yakajairwa tembiricha inogara ichimanikidza, kusanganisira shanduko yechikamu, kukanganisa kwechimiro, kunetsa, amorphization, kana kunyangwe kuita kwakatwasuka. Mukushandiswa mukurasa bhatiri kudzoreredza, zvinokwanisika kuvandudza kudzoreredza kushanda pasi pemamiriro ekushisa kwekamuri. Fan et al.

, Inoshandisa bhatiri rinobuda zvakazara mumhinduro yeNaCl, uye iyo yakadzoserwa LIFEPO4 yakakwirira kwemaawa mashanu ne700 ° C kubvisa organic tsvina. Mechanically activation pamwe nemusanganiswa wezvekugadzirisa zvinhu zvemusanganiswa neuswa acid. Iyo mechanic activation process yakakosha kusanganisa matanho matatu: particle size kuderera, chemical bond break, new chemical bond.

Mushure mekugaya mechanical activation, iyo yakasanganiswa mbishi uye zirconia beads dzakasukurudzwa nemvura yakasvibiswa uye yakanyoroveswa kwemaminitsi makumi matatu, uye filtrate yakamutswa pa90 ° C kuti ibude kusvikira Li + iine musanganiswa mukuru kupfuura 5 g / L, uye pH kusvika 4 yefiltrate yakagadziriswa ne1 mol solution / L yeNaOH. Uye ramba uchimutsa kusvika kusanganiswa kweFe2 + kuri pasi pe4 mg / L, nekudaro uchiwana yakakwira kuchena filtrate. Mushure mekusefa, iyo yakacheneswa lithium solution yakagadziridzwa kuita 8, yakasimudzwa pa90 ° C kwe2 h, uye mvura inonaya yakaunganidzwa ikaomeswa pa60 ° C yeLi recovery product.

Chiyero chekudzorera cheLi chinogona kusvika 99%, uye Fe inodzorerwa muFEC2O4 · 2H2O. Chiyero chekudzorera i94%. YANG et al.

Pasi pekushandisa kwe ultrasonic yekubatsira, iyo yakanaka electrode zvinhu inoparadzaniswa kubva kune yakanaka electrode powder uye sodium ethylenediamine tetracetate (EDTA-2NA), iyo inoshandisa bhora repuraneti yekugadzira mechanical activation. Mushure mekuwedzera kudonha kweiyo activated sampu ine dilute phosphoric acid, iyo leaching inopera, uye cellulose membrane is vacuum filtration neacetate film, iyo yemvura filtrate ine lithium, iron metal ions, Fe, Li muphosphoric acid inogona kusvika 97.67%, 94.

29, zvichiteerana. %. Iyo filtrate yakadzoserwa pa90 ° C ye9 h, uye simbi Fe yakanaya muchimiro cheFEPO4 · 2H2O, Li, uye mvura inonaya yakaunganidzwa uye yakaomeswa.

Zhu et al. Inosanganiswa nelecithin neyakadzoserwa LiFePO4 / C. Mushure mokunge bhora remagetsi rinoshandiswa nemakemikari, 4 h inoputirwa pa 600 ° C pasi pe AR-H2 (10%) yakavhenganiswa mamiriro ekunze, akawanikwa (C + N + P) Yakavharidzirwa regeneration LifePO4 composite.

Muchigadzirwa chekugadzirisa, iyo NC kiyi uye kiyi yePC yakafukidzwa neLiFePO4 kuti iite yakagadzikana C + N + P co-clad coated layer, uye kugadzirwa patsva idiki, iyo inogona kupfupisa Li + uye diffusion nzira LI + uye maerekitironi. Kana huwandu hwelecithin huri 15%, huwandu hwezvinhu zvekuvandudza hunosvika 164.9mA · h / g panguva yakaderera ye0.

2c. 3.6 Zvimwe Zvigadziriswa Zvigadziriswa - An Electrochemical Recycling Solution Technology Yang Zeheng et al, shandisa 1-methyl-2 pyrrolidone (NMP) kunyungudutsa tsvina LIFEPO4 (NMP), unganidza zvakadzorerwa LIFEPO4 zvinhu, kudzorera zvinhu uye conductive agents, binders Kugadzirira kune electrode kuti igadzirwe, i-negative metal lithium firimu inogadzira bhatiri yebhatiri.

Mushure mekuchaja kwakawanda uye kubuda, lithium inoiswa kubva kune yakaipa electrode kuita yakanaka electrode zvinhu, ichiita iyo yakanaka electrode kubva kune lithium state kuenda kune lithically, yakawana mhedzisiro yekugadzirisa. Nekudaro, iyo yakagadziriswa electrode inozounganidzwa kuita yakazara bhatiri kuomerwa, zvakaoma kutungamira chiyero kushandiswa. 4 Electrolytic mhinduro yekudzoreredza tekinoroji Kufambira mberi.

SUN et al, gadzirisa iyo electrolyte uchishandisa vacuum pyrolysis nzira yekudzosera marara bhatiri. Isa iyo yakakamurwa yakanaka electrode zvinhu muvira rekutsvaira, sisitimu iri pasi pe1 kPa, tembiricha yekutonhora yemusungo inotonhora i10 ° C. Imba yevacuum yakapisa pa10 ° C / min, uye yakabvumirwa pa600 ° C kwemaminitsi makumi matatu, iyo inoputika yakapinda mucondenser uye yakanyungudutswa, uye gasi risina kukwana rakabudiswa kuburikidza nepombi yevacuum, uye pakupedzisira inounganidzwa nemuunganidzi gasi.

Iyo binder uye electrolyte inogadziriswa kana kuongororwa seyakaderera molecular huremu chigadzirwa, uye mazhinji ezvigadzirwa zvepyrolysis ndeye organic fluorocarbon makomisheni ekupfumisa uye kupora. Iyo organic solvent extraction method ndeye kuendesa electrolyte kune yakasvibirira nekuwedzera yakakodzera organic solvent kune inobvisa. Mushure mekudhirowa, distillation kana kupatsanurwa, unganidza kana kupatsanura mhinduro ye electrolytic mushure mekutora mapoinzi akasiyana echikamu chimwe nechimwe muchigadzirwa chekubvisa.

Dehwe reTongdong, pasi pekudzivirira kwenitrogen yemvura, cheka bhatiri remarara, bvisa chinhu chinoshanda, isa iyo inoshanda muorganic solvent kwenguva yenguva kuti iburitse iyo electrolyte. Kubudirira kwekubvisa kwemhinduro ye electrolytic kwakaenzaniswa, uye zvigumisiro zvinozivisa kuziviswa kwePC, DEC neDME, uye chiyero chekutora kwePC ndicho chakanyanya kukurumidza, uye electrolyte inogona kuvharwa zvachose mushure memaawa maviri, uye PC inogona kudzokororwa kushandiswa kakawanda, izvo zvingave zvichikonzerwa nemaPC akatarisana ane ma electromalities makuru anowedzera kuparara kwetimumu salt. Supercritical CO2 yakadzokororwa tsvina isina-isina lithium ion bhatiri electrolyte inoreva maitiro e electrolytic mhinduro yakashongedzwa mune supercritical CO2 seinobvisa, inoparadzanisa lithium ion bhatiri diaphragm uye inoshanda zvinhu.

Gruetzke et al. Dzidza kubviswa kwemvura CO2 uye supercritical CO2 pa electrolyte. Nezve electrolyte system ine LiPF6, DMC, EMC uye EC, kana mvura CO2 inoshandiswa, chiyero chekudzorera cheDMC neEMC chakakwirira, uye kupora kweEC kwakaderera, uye chiyero chekudzorera chakakwirira apo kudzorerwa kweEC kwakaderera.

Kuburitsa kwemushonga we electrolytic ndiko kwakanyanya mumvura CO2, uye kudhirowa kwe electrolyte kunogona kuwanikwa (89.1 ± 3.4)% (chikamu chezhinji).

LIU et al, supercritical CO2 yekuwedzera electrolyte yakasanganiswa neiyo ine simba kudhirowa mushure mekutanga static kudhirowa, uye 85% yekubvisa mwero inogona kuwanikwa. Vacuum pyrolysis tekinoroji inodzoreredza mhinduro ye electrolytic kuti iwane peeling yezvinhu zvinoshanda uye mvura iripo, kurerutsa maitiro ekudzoreredza, asi maitiro ekudzoreredza ane yakakwira simba rekushandisa, uyezve inogadzirisa iyo fluorocarbon organic compound; iyo organic solvent extraction process inogona kudzoserwa Chinhu chakakosha che electrolyte, asi pane dambudziko rekukwira kwemutengo we solvent, kupatsanurwa kwakaoma uye kunotevera nhungirwa, nezvimwewo; Supercritical CO2 yekubvisa tekinoroji haina zvinonyungudutsa zvakasara, zviri nyore kupatsanura zvinonyungudutsa, kuderedzwa kwakanaka kwechigadzirwa, nezvimwe.

, i-lithium ion bhatiri Imwe yenzira dzekutsvakurudza dze electrolyte recycling, asi kunewo huwandu hukuru hwe CO2 inoshandiswa, uye iyo yakadzidziswa inogona kukanganisa kushandiswa zvakare kwe electrolyte. 5 Negative electrode material recovery techniques Kuora kubva kuLIFEPO4 bhatiri kutadza mashandiro, dhigirii rekuderera mune yakashata graphite performance yakakura kupfuura yakanaka LiFePO4 zvinhu, uye nekuda kwemutengo wakaderera weiyo negative electrode graphite, huwandu hwehuwandu hushoma, kudzoreredza uyezve hupfumi husina kusimba, parizvino Kudzokorodza tsvakiridzo paiyo yakaipa electrode ine diki bhatiri. Mune electrode yakaipa, foil yemhangura inodhura uye nzira yekudzorera iri nyore.

Iine high recovery value. Iyo yakadzoserwa graphite poda inotarisirwa kutenderera mubhatiri kugadzirisa nekugadzirisa. Zhou Xu et al, iyo vibration yekutarisa, iyo vibration yekutarisa uye yekuyerera kwemhepo yekubatanidza maitiro inopatsanura uye kudzoreredza tsvina lithium ion bhatiri negative electrode zvinhu.

Iyo nzira yekugadzira inoputirwa mumushini wekuputika sando kusvika kune chidimbu dhayamita isingasviki 1 mm, uye kuputika kunoiswa pane fluidized bed distribution plate kuti iite mubhedha wakagadzika; kuvhura fan inogadzirisa gasi rekuyerera, ichibvumira mubhedha wechikamu kuti ugadzirise mubhedha, Mubhedha wakasununguka, uye mvura yekutanga kusvika kusvika yakakwana yemvura, iyo simbi inoparadzaniswa kubva kune zvisiri zvesimbi particles, umo chikamu chechiedza chinounganidzwa nemhepo, kuunganidza mhepo inoparadzanisa dutu, uye kusanganiswa kunochengetwa pasi pemubhedha wemvura. Mhedzisiro yacho inozivisa kuti mushure meiyo negative electrode zvinhu zvaongororwa, saizi yechikamu i92.4% mukutsemuka kwesaizi inodarika 0.

250 mm, uye giredhi ye toner iri 96.6% muchidimbu isingasviki 0.125 mm, uye inogona kudzoserwa; Pakati pekuputika kwe0.

125--0.250mm, giredhi remhangura rakaderera, uye kupatsanurwa kunoshanda uye kudzoreredza mhangura uye toner inogona kuwanikwa nekuyerera kwegasi kurongedza. Parizvino, iyo yakaipa electrode inonyanya kuenderana neaqueous binder, uye binder inogona kunyungudutswa mune aqueous solution, iyo yakaipa electrode zvinhu uye muunganidzi wemhangura foil inogona kuparadzaniswa nemaitiro akareruka.

Zhu Xiaohui, nezvimwewo, yakagadzira nzira yekushandisa yechipiri ultrasonic ancillary acidification uye kunyorova kupora. Iyo yakaipa electrode sheet inoiswa mune dilute hydrochloric acid mhinduro, uye yakatwasuka graphite sheet uye muunganidzi wemhangura foil inoparadzaniswa, uye muunganidzi anoshambidzwa, uye kupora kunowanikwa.

Iyo graphite zvinhu inosefa, yakaomeswa, uye inosefa kupatsanurwa kuti iwane yakadzoserwa graphite crude chigadzirwa. Chigadzirwa chisina kuchena chinogadziriswa mune oxidizing agent senge nitric acid, oxidic acid, kubvisa simbi inosanganiswa muzvinhu, binder, uye girafu pamusoro kumera inoshanda boka, zvichikonzera chechipiri kucheneswa graphite zvinhu mushure mekuunganidza kuomesa. Mushure mekunge chechipiri chakanatswa graphite zvinhu zvakanyudzwa mukuderedza aqueous solution ye ethylenediamine kana diviniscin, ipapo kuchengetedzwa kwe nitrogen kunogadziriswa ne thermally kugadzirisa graphite zvinhu, uye yakagadziridzwa graphite powder yebheteri inogona kuwanikwa.

Iyo yakaipa electrode yebhatiri yemarara inoshandisa kushandisa aqueous bonding, saka iyo inoshanda uye yakanyanyisa foil yemhangura inogona kupepetwa kuburikidza nenzira iri nyore, uye kudzoreredza kwakajairika kwemhando yepamusoro yemhangura foil, iyo graphite zvinhu inoraswa ichaguma nekuparara kukuru kwezvinhu. Naizvozvo, kuvandudza uye kugadzirisa tekinoroji yezvinhu zvegraphite, kuona kushandiswazve kwemarara graphite zvinhu muindasitiri yebhatiri kana mamwe mapoka emaindasitiri. 6 Mabhenefiti ehupfumi ekudzokorodza kuparara kwehupfumi kwelithium iron phosphate marara bhatiri kudzoreredza kunokanganiswa zvakanyanya nemitengo yezvakagadzirwa, kusanganisira marara mabhatiri ekudzoreredza mutengo, mbishi carbonate mutengo, lithium iron phosphate mutengo, nezvimwe.

Uchishandisa iyo parizvino yakashandiswa yakanyorovesa tekinoroji nzira, iyo yakanyanya kudzoreredzwa kukosha kwehupfumi hwemarara phosphate ion bhatiri iri lithium, mari yekudzoreredza ingangoita 7800 yuan / tani, uye mutengo wekudzoreredza ungangoita zviuru zvisere nemazana mashanu yuan / tani, uye mari yekudzoreredza haigone kupidigurwa. Mutengo wekudzokorodza, uko iyo lithium iron phosphate yekudzoreredza mutengo weiyo yekutanga zvinhu inodhura inoverengera 27%, uye mutengo weiyo excipient mutengo i35%. Mutengo wezvishandiso wakakosha kusanganisira hydrochloric acid, sodium hydroxide, hydrogen peroxide, nezvimwe.

(pamusoro pe data kubva kumubatanidzwa webhatiri uye kukwikwidza) Di kubvunzana). Uchishandisa nzira dzakanyorova tekinoroji, lithium haigone kuwana kudzoreredza kwakazara (lithium kudzoreredza kazhinji 90% kana zvishoma), phosphorus, simbi yekudzoreredza maitiro haina kunaka, uye kushandisa nhamba yakakura yezvinobatsira, nezvimwewo, zvakakosha kushandisa yakanyorova tekinoroji nzira yakaoma kuwana purofiti Yekutanga.

Iyo lithium iron phosphate waste bhatiri inoshandisa yakakwira tembiricha yakasimba chikamu nzira yekugadzirisa kana yekuvandudza tekinoroji nzira, ichienzaniswa neyakanyorova tekinoroji nzira, iyo yekudzoreredza haina alkali kunyungudutsa fluid aluminium foil uye iyo asidhi yakanyungudika yakanaka electrode zvinhu lithium iron phosphate uye mamwe matanho ekuita, saka huwandu hwekushandiswa kwezvishandiso hwakakura. Deredza, uye yakakwirira tembiricha yakasimba chikamu kugadzirisa kana regenerative tekinoroji nzira, kudzoreredza kwakanyanya kwelithium, simbi uye phosphorus zvinhu zvinogona kuva nepamusoro kudzoreredza mabhenefiti, maererano nezvinotarisirwa neBeijing Saidmy, uchishandisa yakakwirira tembiricha kugadzirisa mutemo Chikamu kudzokorodza tekinoroji nzira, ichakwanisa kuwana inenge 20% mambure purofiti. 7 Kana iyo yekudzoreredza iri yakaoma yakasanganiswa kudzoreredza zvinhu, yakakodzera kudzoreredza simbi nemakemikari kunaya nzira kana biological leaching tekinoroji, uye makemikari zvinhu zvinogona kushandiswa zvakare, asi maererano neLiFePO4 zvinhu, kunyorova kupora kwakareba, Kushandisa mamwe acid-base reagents uye kugadzirisa huwandu hukuru hweasidhi-base tsvina yemvura, pane kushomeka kwemutengo wakaderera wekudzoreredza hupfumi.

Kuenzaniswa nemakemikari emvura nzira, kupisa kwepamusoro kugadzirisa uye tembiricha yekuvandudza tembiricha ine nguva pfupi yepfupi, uye huwandu hweasidhi-base reagent idiki, uye huwandu hwemarara asidhi tsvina alkali ishoma, asi nzira inodiwa kugadzirisa kana kuvandudza kugadzirisa. Yakasimba mukati kudzivirira electrochemical zvimiro zvetsvina zvinoramba zvichikanganisa zvinhu. Kusachena kunosanganisira shoma shoma yealuminium foil, foil yemhangura, nezvimwe.

Mukuwedzera kune dambudziko, idambudziko rakananga, uye nzira yekuvandudza yakadzidzwa mukushandiswa kukuru asi haisi dambudziko rekuda. Kuti uvandudze kukosha kwehupfumi hwemabhatiri emarara, yakaderera-yemutengo electrolyte uye yakaipa electrode zvinhu zvekudzoreredza nzira dzinofanirwa kuvandudzwa, uye zvinhu zvinobatsira mubhatiri remarara zvinowedzerwa kuti zviwedzere kupora.