Luy Materialu Cathod bi? {2

Materiel bi am cathode mooy composé poudre biñ jëfandikoo ci electrode positif bibatëri ion ionloolu dafay denc ak génne ion litium ci diiru sarse ak ci cycle decharge. Mbir yooyu, oxide metal yu am litium boole ci metal yu melni nikel, manganese, ak cobalt, dañuy wane ni batëri bi di doxee, dundu cycle, ak màndarga yi ci kaaraange.

Kathode bi mooy 30-40% ci njëgu selil LIB bi, te dafay màndargaal li gëna seer ci benn ci ñoom. Bu batëri bi di doxee, ion litium yi dañuy dem ci diggante cathode bi ak anade yi ñuy daw ci cathode bi ci diiru decharge bi ngir defar courant électrique, ba noppi dellu ci anode bi ñuy sarse.

Materiaal yu am doole yi dañuy boole litium bi boole ci oxide metal yu jëm ci biir kristal yi, yuy may lithium {0}oon yi ñuy jëflante. Juroom chimie cathode yu njëkk yi ñoo ëpp doole ci marse bi, ku nekk ci ñoom dafay joxe profil performance yu wuute.

Lithium nickel cobalt oxide (NMC) dafay wane ñatti wen ci ratios { 0} formationulations yu wuute yi bokkuna ci NMC 111 (pass qual), NMC 622, ak NMC 811 (41 bu kawe-nick). Nickel bi dafay joxe densité energie bu bari, manganese dafay indi dal ci wàllu structure, te cobalt dafay gëna yokk dundu ak yokk dundu cycle. NMC 811 dafay joxe 180-200 mAh/g kàttan ak densité energie yuy yegg ci 260 Wh/kg, moo tax mu gëna bëgg oto yu am kuuraŋ.

Fosphate fer Lithium (LFP) dafay jëfandikoo wen wu bari ak fosfaat ci barabu cobalt ak nickel. Ak formula LiFePO₄, chimie bii dafay dox ci voltage bu gëna suufe (3.2V nominal) waaye gëna am solo ci stabilite ak kaaraange thermique. Bàrt yu LFP yi dañu wara def lu ëpp 2,000 cycle te duñu bàyyi oxygen ci jamonoy termik, wàññi bu baax risku lakk yi. Ci atum 2023, LFP dafa jàpp 40% ci marse cathode global bi, ñu koy jëfandikoo ci EVs yu Chine ak sistemu dencukaay energie.

Lithium cobalt oxide (LCO) moo nekkoon lithium {-oon materiel cathode cathode bi Sony di jaay ci 1991. Bi muy joxe densité energie bu gëna kawe ci xeetu cathode, LCO dafay am stabilite termik bu baaxul ci stabilite yu kawe ak dundu cycle bu néew. Jëfandikoo gi dafa bariwoon lool ci elektronik yiy jëfandikoo lu melni telefon yu xarañ yi ak ordinatëri portable yi, muy barab bi ñuy tënk ci jawwu ji, di gëna bari luñuy bàyyi xel ci njëg yi.

Nickel oxide aluminium (NCA) dafay am 80% nickel, 15% ci cobalt, ak 5% ci aluminium. Tesla pioneered jëfandikoo NCA ci oto electrik yi, di jàppale densité energie bu bari bu niro ak NMC waaye ak stabilite termik bu gëna baax chimie nuckel yu sell yi. Waaye, NCA dafay wane ni dafa gaawa yàqu ci anam yu bari, te loolu dafay laaj ñu am sistem buy yoree batëri bu baax.

oxide oxide de manganese (LMO) dafay defar ñatti- di structure spinel spinel buy may doole ju bari ak kaaraange gu baax. Doonte energie bu néew bi gëna néew ci nikel {- katdes, stabilite thermique LMO ak njëg bu yomb moo tax mu mëna am jumtukaayi kuuraŋ ak aparey medikaal yi soxla decharge bu bari.

cathode active material

Defarum macceer biy dox dafay boole ay {0} yu bari yu kawe- température de reaction de reaction de reaction de reaction { 2} Édòl de reactions de contrôle de composition, dayo particule, ak structure kristaline.

Doxalin bi dafay tàmbali ci wàllu cathode cathode bu njëkk (pCAM). Ci wàllu cathode NMC, sulfate metal yu nikel, maganese, ak cobalt dañu leen di seey ci solution ak cobalt ci solution ak cobalt ci biir {1} precipitated ni hydroxide metal yu jaxaso ci reactor yu am stirred. pH bi ñuy saytu ci jamonoy kristalisasioŋ bi mooy critique {3} yobb ci 0.1 pH mën na soppi morphologie particule ak distribution dayo particule. Li waral hydroxide bi dafay segg, raxas ko, ba noppi ñu weer ko ngir defar poudre pSAM bi.

Ginaaw loolu ñu jaxase precursor bi ak hydroxide litium wala carbonate lithium ci ratios yu leer, ba noppi tàngal ko 700-900 degre ci oxygen-nawaas yu 12{5}}24 waxtu. Li gëna am solo ci calcination dafay génne ay jafe-jafe, ba noppi dafay forme kristal yu am metal-oxide ak structure bi war ngir intercalation litium-ion. Tàngooru sint bi, atmosphere bi, ak durasioŋ bi tàngal dafay wane màndarga electrochimique yu mujj yi ak stabilite thermique.

Ginaaw sint, materiel kathode bi dafay def ay xeetu xaaj ak xaaj ngir mëna yegg ci seddaleb dayo particule-ty 5-20 micrometre. Defarkat yi dañuy defar ay particule yu wuute ngir mëna yokk densité bi ci macceer bi ñuy jëfandikoo ci kaw dajalekat yi. Yenn formulasioŋ yi dañuy am yeneen coating wala dopant ngir gëna baaxal dundu ak dundu ci cycle.

Ay gis-gis yu bees yu bees ñoo yombal liggéey bu jafee xam bi. NOVONAX defar na benn xeetu synthese, zero, zero { 2}}waste, di dindi jéego yu njëkk yi, soppi feeds metal yu ñor yi ci cathode NMC bu jeex. Procédure breveté bi dafay wàññi njëgu kapitaal bi lu tollu ci 30% ak njëgu liggéey bi lu tollu ci 50% ci noonu lañuy jëlee 27% ci doole yi gëna néew ci pexe yiñ gëna xam.

Jéego bu mujj bi dafay defar cathode slurry ci jaxase poudre materiel active ak ay xeetu mbir yu ñuy jëfandikoo (bu ñuul bu ñuul), lindars (dañu koy faral di def ci fluoride wala PVDF), ak solvant (N{0grèle wala NMP). Slurry bi dañu ko boole ci kaw foil aluminium, ñu weer ko ci fuur yi ngir dindi solvant yi, ba noppi ñu jël ko ci roller ngir mëna am 70 micrometre yu am 15 mg/cm2 ci macceer bi am doole.

Materielu cathode mooy benn dawalkat bi gëna mag ci defar batëri. Ci atum 2024, NMC 811 cathode materiel biy aktive dafay njëg $109 ci kilowatt- waxtu, muy 53% ci njëgu macceer selulaar bi yépp ak 30% ci njëgu batëri bi yépp. LFP cathode njëg bi gëna néew ci $21.90/kWh ci 2023, ak carbonate lithium buy màndargaal 90% ci lim boobu ci $19.60/kWh.

Marse macceer cathode bi amna 55 milyaar ci 2024 ak laaj bu tollu ci 2800 kiloton. Projection yi ci marse bi dañu xayma ni yokkute ci 19,5 milyaar ci 2024 ba $52.4 milyaar ci 2034, loolu dafay wane ni limu nit ñi di am ci at mi tollu ci 10.7%. Li gëna am solo mooy laaj bi batëri kuuraŋ bi di gëna yokk, muy lu ëpp 14 milioŋ ciy unités yuñ jaay ci àdduna bi ci 2023.

Siin moo ëppu doole ci defar cathode ak lu ëppu 60 ci teemeer boo jél ci kàttanu defar yi ci aduna bi, topp ci Kore bu bët Saalum ak Japon ak 25% ci share. Waaye, yokkute ci kàttan yu am solo mingi ci Europe ak Amerique du Nord. Usine Schwarzheide bu BASF ci Allemagne tàmbaliwoon na njëkka defar- defar bu kawe-ickel cathode cathode ci 2023, di teg 100 kiloton at mu nekk ci atum 2025. Ci Etats Unis, LG Chem ak General Motors' Ultum CAM bu boole ci Tennessee ci teel 60 kiloton balaa atum 2025.

Njëg yu bari yi am ci macceer yi dañu am njeexital yu am solo ci njëgu cathode bi. Njëg lithium karbonate dafa soppeeku ci anam wu am solo-ri ngir enregistre ci 2022 balaa muy wàññeeku ci 2023-2024 bi ñu koy joxe ci net bi. Njëg lickel ak nickel itam dañuy wane ni dañuy gëna bari ay jafe-jafe, ndax dafay indi ay jafe-jafe ci wàllu joxe ak yeneen mbir ci wàllu geopolitik. Republik Demokratik bu Congo lu ëppu 70 ci teemeer boo jél ci kobalt globaal bi, waaye Enndonesi feeñna ni produit bu mag bi ñuy defar.

Njëg li ñuy wax ci njëg yi ak joxe gi dafa gaaw ci ñaari tendaas yu am solo: coppite ci chimie LFP ak yokkute ci cobalt- yu amul benn werante. Ci atum 2024, gëstukat yi ci Georgia Tech defar nañu benn kathode chloride bu 1-2% ci macceer yiñ gëna xam, boole ci denc energie bu méngoo. Doonte ba leegi jàngat nañu ko, mën nañu soppi koom-koomu batëri.

Aplikaasioŋ yu bari dañuy laaj ay profil yu wuute ci kathode. Oto kuuraŋ yi dañuy njëkka am doole ci wàllu energie ngir dawal, dayo elektroniku konsomatër yi, ba noppi dencukaay yi dañuy fësal dundu cycle ak kaaraange.

Desité energie dafay wuute lool ci chimie. NMC 811 ak NCA dañuy joxe 200-270 Wh/kg ci niveau selil bi, loolu mooy tax EV yi mëna am 300 {7000 mile ci diggante bi. LFP dafay joxe densité energie bu gëna néew ci 140 {8}170 Wh/kg waaye dafay delloo ak man-manufacturer yu gëna gudd yu melni BYD, amna EV yu am doole ci boole selil yi ak yokk efficacité volumetric.

Dundug sicle mooy limu sarse {- discharges balaa kàttan ba 80% ci original bi. LFP excel yi fi ak 2,000-4,000 cycle, buñu ko méngale ak 1,000-2,000 ngir NMC ak 500-1,000 ngir LCO. Dundin bu yàgg bii dafay tax LFP gëna baax ci dencukaay energie bu taxaw, fu batëri yi mëna dawal bis bu nekk ci diiru 10 ba 15 at. NMC bu bari nickel dafay gaawa jeex ndax ñàkka dal gi ak ci wet yi ci voltage yu bari, te loolu dafay laaj ñu yor ko bu baax.

Màndarga yi am ci wàllu kaaraange mingi aju ci stabilite thermique ak chimik. LFP dafay wane kaaraange bu amul fenn {1}it yu dëgër P{- O lëkkaloo dañuy tere oxygen bi di génne ci jamonoy tàngoor, te produit bi du am decomposition exothermique ba 270 degre . NMC ak NCA cathode dañuy dindi tàngoor wi ci suuf (200-250 degre) ba noppi bàyyi oxygen bi mëna daw ci terrouway thermique. Loolu dafay leeral lu tax LFP ëpp doole ci marse EV bu Chine, fu kaaraange tàngoor wi di gëna am solo.

Kàttanu kuuraŋ mingi aju ci lithium { {0} ion diffusion ak yoon elektronik. Ñatti {-dimensioneel structure spinel dafay may yóbbu ion bu gaaw, jàppale taxu debit ba 20C{4}name batëri bi mën na génne kàttanam ci 3 simili. NMC ak NCA dañuy jëfandikoo 1-3C, waaye LFP dafay wéy di doxal 1C ak 5C pick yu bari suñu ko defaree ci anam wu jaar yoon.

Tàngoor wu metti ci liggéey dafay indi jafe-jafe ci liggéey bi ci klimaa bi gëna tar. LFP dafay gëna ñàkk kàttan ci sedd ndax sedd bi - mobilité ci tàngoor wu woyof. NMC ak NCA dañuy gëna sedd {-wu so, waaye dañu soxla jëfandikoo tàngoor wu am doole ngir moytu tàngoor wu metti wi ci klimaa bi tàng. Yenn defarkat yi leegi dañuy jëfandikoo sistem yuy tàngal batëri yi ngir mëna tàmbali LFP ci marse nord.

cathode active material

Bi ñuy gaawal jëfandikoo batëri, jumtukaayi rësiklaas yi dañu am solo ngir mëna dundu ci seen biir ak seen wareef ci environmaa bi. Ñatti xeeti rësikle yu mag ñoo feeñ: hydrometallurgie, pyrometallurgie, ak defaraat ci saasi.

Doxalinu hydrometallurgique dafay dindi mbir yu bari ci biir asid, ba noppi ñu tànn leen ci anam wu wuute ak setal wen wu nekk. Bokk na ci lithium, nickel, kobalt, ak manganese ci 95-99% efficacité waaye dafay jur mbalit yu am solo ci ndox mu sell ak mbalit chimik. Elements Elements' breveted Hydro-to-Cathode® dafay gëna yokk ci hydrometallurgy bu yàgg bi, ndax dafay dindi 15 jéego yu digg yi ak wàññi gaz carbonique yi ci 49% suñu ko méngale ak produit yu virgin yi.

Pyrometallurgique batëri rësiklaas yu bari ci tàngoor wu metti ngir defar alloy yu am metal, muy lu am solo ci ñoom. Doonte gëna yomb te mëna jëfandikoo batëri yépp te amul pree {1}treatment, pyrometallurgie dafay lekk energie bu bari te dafay ñàkk litium ci slag. Li ñuy bàyyi ci gaz à effet de serre ci pajum pyrometallurgik mooy lu tollu ci ñaari yoon ci xeetu hydrometallurgique yi.

Regeneration bu gaaw mooy xeetu { Écoure pairing bi gëna beese ci cathode yi, moo gën ñu koy dindi ci metal yi ci biir. Bokk na ci anam yi ñuy jëlee mbir yu am solo yi ak ñiy jël lithium, ba noppi ñu defaraat lithium bi réer ci solide {- Sintering, pajum hydrothermique, wala toggu xorom. Regence de regeneration dafay laaj 60-80% energie bu néew rësiklaas bu sukkandiko ci extract, te amul ndox mu sell. Gëstu yu bees yi dañu wane ni katade NMC buñ defaraat mën na méngoo ak wala weesu li ñuy def ci macceer yi ci virgin yi.

Redwood Materials mooy liggéey bi njëkk ci jënd ak jaay ci Etats Unis, di liggéey 30,000 ton at mu nekk ak 60,000 ton ci 2024. Seenug kalkenasioŋ bu njëkk ci wàllu reductive, dafay doxal lépp ci energie bu des ci njeexte li ci njeexte li, jëfandikoo batëri fosil. Liggéeyukaay bi dafay delloo 95% ci litium ci batëri bi, ba noppi soppi ko mu nekk- grade cathode cathode yu am njeexital yu gëna néew ci miniing.

Sàrti Passport bu waa Union Européenne, muy am njariñ ci 2027, dina tëral ëmbiit bu gëna ndaw buñ defaraat ci batëri yu bees ak leer ci seen biir. Politik boobu moo jur lu ëpp 4.5 milyaar ciy dolaar ci dugal xaalis ci infrastructure rësiklaas ci 2022, ak ay jumtukaay yuñ waajal ci Allemagne, Suede, ak Hongrie.

Gëstu dafay wéy di puus ay pexe yu am solo ci wàllu cathode ci noonu muy saafara jafe-jafe yi ak jafe-jafe yi ci mëna dundu. Barina yokkute yu am solo yu jëm ci njaay.

Benn ci particule NMC yu NMC yi ñu ngi wecci structure polycrystal bi am ci jamono jii. Kristalu benn xeetu kristal dafay dindi peggu pepp yi, fu ay xar-xar di tàmbali, gëna mëna dundu ci cycle ak stabilite mekanik. CATL ak yeneen defarkat tàmbali nañu defar benn -crystal cathode yuy tëye 90% ci kàttan ginaaw 4,000 cycles{7}} du dundu NMC buñ miin.

Lithium-rich manganese {1}) cathades (LMR) mën na joxe lu ëpp 250 mAh/g kàttan ci jëfandikoo reaction redox redox yu oxygen ak oxygen. Waaye, voltage bi ci jamonoy welo ak kàttan bu baaxul, bariwul luñu ci mëna jëfandikoo ci wàllu jënd ak jaay. Ay jéego yu bees ci pexe doping ak coating surface dafay saafara jafe-jafe yooyu, ak yenn liggéeyukaay yuy wut dugg ci marse bi ci 2026.

Manganese-rich formule yi dañu bëgga wàññi nickel ak cobalt dependence ci noonu lañuy wéy di am doole. BASF dafa taxawal benn usine pilote ci weeru màrs 2024, rawatina ci katode yu mag yi-rich, xam ni njëgi manganese yi 10{6}} 20 yoon lu néew ci nickel. Mn-rich compositions yi ñu ngi am 85-90% ci densité energie bu NMC 811 ci njëg bu gëna néew.

Sodium { 0}}i batëri yu jëfandikoo cathode yu baxa Prusse yi dañuy dindi lithium ak cobalt bu mat. Doonte densité energie mingi wéy di gëna néew litium- ion (140{40{4}}160 Wh/kg), bariwaayu sodium ak njëg bu néew moo koy gëna xëcc ci dencukaay yu taxaw ak yu gàtt-range EVs. Defarkatu chinois CATL tàmbali defar batëri sodium-ion ci 2023, ak densité energie buñ yaakaar ni dina yegg 200 Wh/kg ci 2027.

Solid{{0} batëri yi dañu nara soppi jëmmal cathode ci wecci electrolyte yu ndoxe ak seramik yu dëgër wala polymer. Loolu dafay tax ñu mëna jëfandikoo jumtukaayi cathode cathode yu gëna kawe {{2} voltage ak anodu metal lithium, mën nañu yegg 400 {400-500 Wh/kg ci niveau selulaire bi-na ñaari yoon ci xarala yu bees yi. Waaye, batëri yu dëgër yi dañuy jànkoonte ak jafe-jafe ci defar scalability ak bañaale ci diggante yi. Sosiete yu bari yu ci melni QuantumScape, Power Solid, ak Toyota ñu ngi jëm ci liggéey bi diggante 2025-2030.

Integment bu xarañteg xelu masin ak jàngu masin ci yokkute cathode mooy gaawlu waxtu gis-gis yi. Leegi gëstukat yi dañuy jëfandikoo xeetu ordinatër ngir saytu ay junni composition yu mëna am, di wax luy am ci seen màndarga electrochimique balaa ñuy boole. Bu yàggul dara gis-gis bi dafa wane ay mbir yu bees yu bari {- kattropy yu am stabilite ak tëye kàttan.

cathode active material

Njëg li ñuy jaay ci macceer yi ñooy 70-80% ci njëgu katode yi. Lithium, nickel, ak cobalt ñooy gëna am solo ci njëg yi, cobalt mooy gëna seer ci $25,000-35,000 tonn. Jafe-jafe yi ci liggéey bi itam dafay indi jafe-jafe ci cathode yu bari yi am sickel, dafay laaj nga gëna am doole ci wàllu setal ak defar, loolu dafay yokk njëgu liggéey bi. LFP cathode 30 ba 40% ci NMC moo ko njëkka jëfandikoo ndax jëfandikoo wen wu bari ci barabu nikel ak cobalt.

Mixing xeetu cathode ci diiru rësiklaas dafay wàññi njariñ ak kalite produit. NMC, NCA, ak LFP am nañu ay composition chimique yu bari te soxla parametru liggéey yu wuute. Waaye, rësiklakat yu melni Redwood Materials ak Li{-Cycle defar nañu ay anam yu yomb yu mëna jëfandikoo feedstocks yu wuute yi ci tànnal batëri yi balaa ñuy liggéey wala di yamale pajum chimik yi. Yenn gëstu yi dañu wane ni dañuy boole xeeti kathode yu amul benn werante ci ratios yuñ saytu, mën nañu defar ay mbir yu bees ak màndarga yu digg yi, waaye loolu mingi wéy di jàngat.

LFP cathode yi ñoo gëna am kaaraange ndax phosphate bu dëgër biy tere oxygen bi mëna génn ci jamonoy tàngoor. Duñu def daw ba tàngoor wi weesu 270 degre . Nickel{{3}rich cathode (NMC 811, NCA) tàmbali di tas lu tollu ci 200 degre ba noppi génne oxygen biy gaawlu daw termik. Loolu dafay leeral ni batëri yi di gëna bari ci batëri yi ci kaw- ÉVs EVs jëfandikoo nickel{9}}rich chimie. Waaye, sistem yiy jëfandikoo batëri yu xarañ yi ak sàrti tàngoor yi dañu tax ñu mëna jëfandikoo batëri NMC ci anam wu wóor ci aplikaasioŋ yu bari.

Iron contamination is particularly problematic-even trace amounts (>10 ppm) mën na indi ay sircuit yu gàtt ak kàttan. Sulfur, vanadium, ak calcium itam dañuy yàq liggéey bi, ndax dafay yàq structure kristal bi, ba noppi di yokk impedance bi. High{3}} matsu precursor yi dañuy am 99.5-99.9% sell ak ëmbiitu wen ci suufu 5 ppm. Macceer katode rësikle dafa wara am setal bu bari ngir dindi ay jafe-jafe yuñ dajale ci dundu batëri yi njëkk.

Materiel yu am doole yi dañuy toog ci wetu science materiel, electrochimie, ak ingenieur ci defar. Tolluwaayu chimie cathode {1}ballancing performance, njëg, ak dundu { 2} dina jëmmal ci anam wu gëna jubal ci jëfandikoo oto electrik ak dencukaay energie buñ mëna yeesal ci fukki at yii ci kanam.