Nekukura nekukurumidza kwebhatiri re lithiamuMuindasitiri, mamiriro ekushandiswa kwemabhatiri e-lithium anoramba achikura uye achive chishandiso chesimba chisingakoshi muhupenyu hwevanhu nebasa. Kana zvasvika pakugadzirwa kwevagadziri vemabhatiri e-lithium akagadzirwa, maitiro ekugadzira mabhatiri e-lithium anosanganisira zvinhu, kufukidza, sheeting, kugadzirira, kumonera, kuputira, kupfumburudza, kubika, kupinza mvura, kusveta, nezvimwewo. Izvi zvinotevera zvinounza pfungwa huru dzemaitiro ekugadzira bhatiri re-lithium. Zvinhu zvakanaka zvemaelectrode Electrode yakanaka yemabhatiri e-lithium inoumbwa nezvinhu zvinoshanda, zvinofambisa mhepo, zvinonamira, nezvimwewo. Kutanga, zvinhu zvisina kugadzirwa zvinosimbiswa uye zvinobikwa. Kazhinji, chinhu chinofambisa mhepo chinofanira kubikwa pa ≈120℃ kwemaawa masere, uye chinonamira PVDF chinofanira kubikwa pa ≈80℃ kwemaawa masere. Kana zvinhu zvinoshanda (LFP, NCM, nezvimwewo) zvichida kubikwa nekuomeswa zvinoenderana nemamiriro ezvinhu ezvigadzirwa zvisina kugadzirwa. Parizvino, workshop yebhatiri re-lithium inoda tembiricha ≤40℃ uye hunyoro ≤25%RH. Mushure mekunge kuomeswa kwapera, glue yePVDF (PVDF solvent, NMP solution) inofanira kugadzirirwa pachine nguva. Hunhu hweglue rePVDF hwakakosha pakudzivirira kwemukati uye mashandiro emagetsi ebhatiri. Zvinhu zvinokanganisa kushandiswa kweglue zvinosanganisira tembiricha nekumhanya kwekukurunga. Kana tembiricha yakakwira, kutsvuka kweglue kunokanganisa kunamira. Kana kumhanya kwekukurunga kwacho kuchikurumidza, gunde rinogona kukuvara zviri nyore. Kumhanya kwekutenderera kwakanangana kunoenderana nehukuru hwediski yekupararira. Kazhinji, kumhanya kwediski yekupararira kwacho kuri 10-15m/s (zvichienderana nemidziyo). Panguva ino, tangi rekusanganisa rinodiwa kuti rivhure mvura inotenderera, uye tembiricha inofanira kuva ≤30°C.

Wedzera cathode slurry muzvikamu. Panguva ino, unofanirwa kutarisisa kurongeka kwekuwedzera zvinhu. Kutanga wedzera chinhu chinoshanda uye chinofambisa mhepo, kurunga zvishoma nezvishoma, wobva wawedzera guruu. Nguva yekudyisa uye chiyero chekudyisa zvinofanirwawo kuitwa zvakanyatsonaka zvichienderana nemaitiro ekugadzira lithium battery. Chechipiri, kumhanya kwekutenderera uye kumhanya kwekutenderera kwemidziyo zvinofanirwa kudzorwa zvakanyanya. Kazhinji, kumhanya kwemutsetse wekupararira kunofanirwa kunge kuri pamusoro pe17m/s. Izvi zvinoenderana nekushanda kwemudziyo. Vagadziri vakasiyana vanosiyana zvakanyanya. Zvakare dzora vacuum uye tembiricha yekusanganisa. Padanho rino, saizi yezvikamu uye viscosity yeslurry zvinofanirwa kuonekwa nguva dzose. Saizi yezvikamu uye viscosity zvinoenderana zvakanyanya nezviri mukati, hunhu hwezvinhu, kutevedzana kwekudyisa uye maitiro ekugadzira lithium battery. Panguva ino, maitiro echinyakare anoda tembiricha ≤30℃, hunyoro ≤25%RH, uye vacuum degree ≤-0.085mpa. Tumira slurry kutangi rekutamisa kana pendi. Mushure mekunge slurry yatamiswa, inofanira kutariswa. Chinangwa ndechekusefa zvidimbu zvikuru, kudzikamisa nekubvisa ferromagnetic nezvimwe zvinhu. Zvikamu zvikuru zvinokanganisa coating uye zvinogona kukonzera kuzviburitsa zvakanyanya kwebhatiri kana njodzi ye short circuit; zvinhu zvakawanda zve ferromagnetic mu slurry zvinogona kukonzera kuzviburitsa zvakanyanya kwebhatiri nezvimwe zvikanganiso. Zvinodiwa pakugadzira bhatiri re lithium ndeizvi: tembiricha ≤ 40°C, hunyoro ≤ 25% RH, saizi ye screen mesh ≤ 100 mesh, uye saizi ye particle ≤ 15um.

Electrode isina kunakaZvinoshandiswa Electrode isina kunaka yebhatiri re lithium inoumbwa nezvinhu zvinoshanda, chinhu chinofambisa mhepo, chinosunga mvura uye chinoparadzira mvura. Kutanga, simbisai zvinhu zvisina kugadzirwa. Sisitimu yeanode yechinyakare inzira yekusanganisa mvura (chinhu chinonyungudutsa mvura isina kugadzirwa), saka hapana zvinodiwa zvekuomesa zvezvinhu zvisina kugadzirwa. Maitiro ekugadzira bhatiri re lithium anoda kuti mvura isina kugadzirwa ive ≤1us/cm. Zvinodiwa pabasa: tembiricha ≤40℃, hunyoro ≤25%RH. Gadzirirai guruu. Mushure mekunge zvinhu zvisina kugadzirwa zvaonekwa, guruu (rakagadzirwa neCMC nemvura) rinofanira kutanga ragadzirwa. Panguva ino, dururirai graphite C uye chinhu chinofambisa mhepo mumuchina wekusanganisa mvura yakaoma. Zvinokurudzirwa kuti musashandise mvura inotenderera, nekuti zvidimbu zvinoburitswa, zvinokweshwa uye zvinopiswa panguva yekusanganisa mvura yakaoma. Kumhanya kwekutenderera kuri pasi 15~20rpm, kukwesha nekukuya kunoitika ka2-3, uye nguva yepakati i ≈15min. Dururira guruu mumuchina wekusanganisa mvura (≤-0.09mpa). Svina rabha nekumhanya kwakaderera kwe15~20rpm kaviri, wobva wagadzirisa kumhanya (kumhanya kwakaderera kwe35rpm, kumhanya kwakakwirira kwe1200~1500rpm), womhanya kwemaminitsi angangoita 15~60 zvichienderana nemaitiro ekunyorova emugadziri wega wega. Pakupedzisira, dururira SBR mublender. Kukurunga kwakaderera kunokurudzirwa sezvo SBR iri polymer refu. Kana kumhanya kwekutenderera kwakanyanya kukurumidza kwenguva yakareba, cheni yemamorekuru ichatyoka nyore nyore uye kurasikirwa nebasa. Zvinokurudzirwa kukurunga nekumhanya kwakaderera kwe35-40rpm uye kumhanya kwakakwirira kwe1200-1800rpm kwemaminitsi 10-20. Edza viscosity (2000~4000 mPa.s), saizi yezvikamu (35um≤), huwandu hwakasimba (40-70%), dhigirii re vacuum uye screen mesh (≤100 mesh). Maitiro chaiwo ekuita zvinhu achasiyana zvichienderana nehunhu hwezvinhu uye maitiro ekusanganisa. Musha webasa unoda tembiricha ≤30℃ uye hunyoro ≤25%RH. Kufukidza cathode Kuvhara Maitiro ekugadzira bhatiri re lithium anoreva kuburitsa kana kupfapfaidza cathode slurry pamusoro peAB yealuminium current collector, ine huremu humwe hwe ≈20~40 mg/cm2 (ternary lithium battery type). Tembiricha yefurnace inowanzo kuve pamusoro pe4 kusvika 8 knots, uye tembiricha yekubikira yechikamu chimwe nechimwe inogadziriswa pakati pe95°C ne120°C zvichienderana nezvinodiwa chaizvo kudzivirira kutsemuka kwe transverse uye solvent inodonha panguva yekubikira. Chiyero chekumhanya kwe roller coating i1.1-1.2, uye nzvimbo ye gap inoderedzwa ne20-30um kudzivirira kudzvanywa kwakanyanya kwenzvimbo ye label nekuda kwekuoma kwemuswe panguva yebhatiri, izvo zvinogona kutungamira kumvura ye lithium. Kufukidza hunyoro ≤2000-3000ppm (zvichienderana nezvinhu uye maitiro). Tembiricha yakanaka ye electrode mu workshop ndeye ≤30℃ uye hunyoro hwe ≤25%. Dhayagiramu ye schematic ndeiyi inotevera: Dhayagiramu ye schematic ye coating tape

Iyokugadzira mabhatiri e lithiamumaitiro ekupfeka kwe electrode isina kunakazvinoreva kuburitsa kana kupfapfaidza electrode isina kunaka pamusoro peAB yemuunganidzi wemhangura. Kuwanda kwenzvimbo imwe chete ≈ 10~15 mg/cm2. Tembiricha yechoto checoating inowanzo kuve nezvikamu 4-8 (kana kupfuura), uye tembiricha yekubikira yechikamu chimwe nechimwe i80℃ ~ 105℃. Inogona kugadziriswa zvichienderana nezvinodiwa chaizvo kudzivirira kuputika kwekubikira uye kuputika kwakachinjika. Chiyero chekumhanya kweroller yekufambisa i1.2-1.3, mukaha unotetepa 10-15um, huwandu hwependi i≤3000ppm, tembiricha yeelectrode isina kunaka muworkshop i≤30℃, uye hunyoro i≤25%. Mushure mekunge positive coating yeplate yakanaka yaoma, dhiramu rinofanira kurongeka mukati menguva yekuita. Roller inoshandiswa kumanikidza pepa reelectrode (huremu hwedressing pa unit volume). Parizvino, kune nzira mbiri dzakanaka dzekudzvanya electrode mukugadzira lithium battery: kupisa nekudzvanya nekutonhora. Kana tichienzanisa nekudzvanya nekutonhora, kupisa kune compression yakakwira uye yakaderera rebound rate. Zvisinei, maitiro ekudzvanya nechando ari nyore uye ari nyore kushandisa nekudzora. Midziyo mikuru yeroller ndeyekuwana zvinotevera maitiro, huwandu hwekumanikidzana, huwandu hwekudzokera shure uye kureba. Panguva imwe chete, zvinofanirwa kucherechedzwa kuti machipisi akapfava, mapundu akaoma, zvinhu zvakawa, mipendero ye wavy, nezvimwewo hazvitenderwi pamusoro pechinhu chetsvimbo, uye kuputsika hakutenderwi mumaburi. Panguva ino, tembiricha yenzvimbo yeworkshop: ≤23℃, hunyoro: ≤25%. Hunhu hwechokwadi hwezvinhu zvemazuva ano:

Kubata kunonyanya kushandiswa:

Kudzoka kwenhamba: kudzoka kwenhamba 2-3 μm

Kureba: Pepa re electrode rakanaka rinowanzova ≈1.002

Mushure mekunge electrode roll yapera, danho rinotevera nderekupatsanura chidimbu chose cheelectrode kuita zvidimbu zvidiki zvehupamhi hwakaenzana (zvinoenderana nekukwirira kwebhatiri). Paunenge uchicheka, teerera maburi echikamu chepole. Zvakakosha kuongorora zvizere zvidimbu zvepole zvemaburi mumirayiridzo yeX neY nerubatsiro rwemidziyo ine mativi maviri. Kureba kweburr process Y≤1/2 H diaphragm thickness. Tembiricha ye ambient yeworkshop inofanira kuva ≤23℃, uye dova point inofanira kuva ≤-30℃. Maitiro ekugadzira ma electrode sheets asina kunaka e lithium battery negative electrode sheets akafanana nee positive electrodes, asi dhizaini yeprocess yakasiyana. Ambient tembiricha yeworkshop inofanira kuva ≤23℃ uye hunyoro inofanira kuva ≤25%. True density yezvinhu zve common negative electrode:

Kubatanidzwa kwema electrode negative kunowanzo shandiswa: Kudzoserwa kwerebound rate: General rebound 4-8um Elongation: Positive plate kazhinji ≈ 1.002 Maitiro ekugadzira lithium battery positive electrode stripping akafanana ne positive electrode stripping process, uye ese maviri anofanira kudzora maburrs munzira dzeX neY. Tembiricha yemu workshop inofanira kuva ≤23℃, uye dova rinofanira kuva ≤-30℃. Mushure mekunge positive plate yagadzirira kubviswa, positive plate inofanira kuomeswa (120°C), uye pepa realuminium rinosungirirwa uye kurongedzwa. Munguva iyi, kureba kwema tab uye upamhi hwekuumba zvinofanirwa kufungwa. Tichitora dhizaini ye **650 (senge bhatiri re18650) semuenzaniso, dhizaini ine ma exposed tabs inonyanya kufunga nezvekushanda pamwe chete kwakanaka kwema cathode tabs panguva ye cap and roll groove welding. Kana ma pole tabs akafumurwa kwenguva yakareba, short circuit inogona kuitika zviri nyore pakati pema pole tabs ne steel shell panguva yekutenderera. Kana lug iri pfupi kwazvo, cap haigone kusungirirwa. Parizvino, kune mhando mbiri dzemisoro yewelding ye ultrasonic: yakatsetseka uye ine chimiro chepoint. Maitiro epamba anowanzo shandisa misoro yewelding yakatsetseka nekuda kwekufunga nezve overcurrent uye simba rewelding. Pamusoro pezvo, glue inodziya zvakanyanya inoshandiswa kufukidza ma solder tabs, kunyanya kudzivirira njodzi ye short circuits inokonzerwa ne metal burrs uye simbi tsvina. Tembiricha ye ambient ye workshop inofanira kuva ≤23℃, dova point inofanira kuva ≤-30℃, uye cathode hunyoro hunofanira kuva ≤500-1000ppm.

Kugadzirira Plate Isina KunakaPurati re negative rinofanira kuomeswa (105-110°C), wobva wabatanidza masheti e nickel uye woarongedza. Kureba kwetabhu re solder uye upamhi hwekuumba zvinodawo kufungwa. Tembiricha yemhepo yeworkshop inofanira kuva ≤23℃, dova rinofanira kuva ≤-30℃, uye hunyoro hwe electrode ye negative hunofanira kuva ≤500-1000ppm. Kutenderedza ndekwekutenderedza separator, positive electrode sheet uye negative electrode sheet musimbi kuburikidza nemuchina wekutenderedza. Nheyo ndeyekuputira positive electrode ne negative electrode, wobva waparadzanisa positive ne negative electrodes kuburikidza nemuchina wekuparadzanisa. Sezvo negative electrode yetsika yechinyakare iri electrode yekudzora dhizaini yebhatiri, dhizaini ye capacity yakakwira kupfuura ye positive electrode, kuitira kuti panguva yekuchaja kwe formation, Li+ ye positive electrode inogona kuchengetwa mu "nzvimbo" ye negative electrode. Kunyatsotarisirwa kunofanirwa kupihwa kune kutenderedza kwe winding tension uye pole piece pakutenderedza. Kutenderedza kudiki kwazvo kuchakanganisa resistance yemukati uye housing insertion rate. Kumanikidzwa kwakanyanya kunogona kukonzera njodzi yekupfupika kwemhepo kana kupwanyika. Kurongeka kunoreva nzvimbo yeelectrode isina simba, electrode yakanaka, uye separator. Upamhi hweelectrode isina simba i59.5 mm, electrode yakanaka i58 mm, uye separator i61 mm. Izvi zvitatu zvinorongeka panguva yekutamba kudzivirira njodzi yekupfupika kwemhepo. Kumanikidzwa kwekutenderera kunowanzova pakati pe0.08-0.15Mpa yepombi yakanaka, 0.08-0.15Mpa yepombi isina simba, 0.08-0.15Mpa yepombi yepamusoro, uye 0.08-0.15Mpa yepombi yepasi. Kugadziriswa kwakananga kunoenderana nemidziyo uye maitiro. Tembiricha yemushandi uyu i ≤23℃, dova point i ≤-30℃, uye hunyoro hwemvura i ≤500-1000ppm.

Musoro webhatiri une case usati waiswa mukesi, bvunzo yeHi-Pot ye200~500V inodiwa (kuyedza kana bhatiri rine voltage yakawanda rakapfupikiswa), uye vacuum cleaner inodiwawo kudzora guruva risati raiswa mukesi. Nzvimbo nhatu huru dzekudzora dzemabhatiri e-lithium ihunyoro, maburi neguruva. ​​Mushure mekunge maitiro apfuura apera, isa gasket rezasi pasi pemusoro webhatiri, peta pepa re electrode positive kuitira kuti pamusoro paro patarise nehole rinomonera core yebhatiri, uye pakupedzisira riise rakamira mushell yesimbi kana shell yearuminiyamu. Tichitora mhando 18650 semuenzaniso, dhayamita yekunze ≈ 18mm + kureba ≈ 71.5mm. Kana nzvimbo yepakati pewonda iri diki pane nzvimbo yepakati pechikamu chesimbi, chiyero chekupinza simbi chinenge 97% kusvika 98.5%. Nekuti kukosha kwechikamu chedanda uye mwero wekupinda kwemvura panguva yekubaya gare gare zvinofanirwa kufungwa. Maitiro akafanana neaya epasi pevhu anosanganisira kuungana kwepasi pevhu repamusoro. Tembiricha yemhepo yemu workshop inofanira kuva ≤23℃, uye dova rinofanira kuva ≤-40℃.

Kutenderedzainoisa pini yekusolder (inowanzogadzirwa nemhangura kana alloy) pakati pepakati pesimbi yekusolder. Mapini ekuwelder anoshandiswa kazhinji ndeaya Φ2.5*1.6mm, uye simba rekuwelder reelectrode isina kunaka rinofanira kuva ≥12N kuti rikwanise. Kana rakaderera zvakanyanya, rinokonzera nyore nyore kusvetukira kwesero uye kuramba kwakanyanya kwemukati. Kana rakakwirira zvakanyanya, zviri nyore kusvetukira kubva pane nickel layer pamusoro pesimbi, zvichikonzera majoini ekusolder, zvichikonzera njodzi dzakavanda dzakadai sengura nekubuda kwemvura. Kunzwisisa kuri nyore kwerooping groove ndeyekugadzirisa bhatiri reronda riri pabhokisi pasina kuzununguka. Mukugadzira bhatiri iri re lithium, kutarisisa kwakakosha kunofanirwa kubhadharwa pakuenderana kwe transverse extrusion speed uye longitudinal pressing speed kudzivirira kucheka casing nekumhanya kwakanyanya, uye nickel layer yenotch ichadonha kana longitudinal speed yakanyanyisa kukurumidza kana kukwirira kwenotch kuchikanganiswa uye sealing ichakanganiswa. Zvakakosha kutarisa kana maitiro ekudzika kwe groove, extension uye groove height zvichitevedzera mitemo (nekuverenga kwechokwadi uye kwedzidziso). Saizi dzechitofu dzinofanana ne1.0, 1.2 uye 1.5 mm. Mushure mekunge gomba rekumonera rapera, muchina wese unofanirwa kupiswa zvakare kuti usaparadzwe nesimbi. Dhigirii remuchina wekumonera rinofanira kuva ≤-0.065Mpa, uye nguva yekumonera inofanira kuva 1 ~ 2s. Tembiricha yekunze inodiwa pabasa iri ndeye ≤23℃, uye dova point iri ≤-40℃. Kubika kwepakati pebhatiri Mushure mekunge machira ebhatiri ecylindrical amonerwa uye amonerwa, maitiro anotevera ekugadzira bhatiri re lithium akakosha zvikuru: kubheka. Munguva yekugadzira mabhatiri, huwandu hwakati hwehunyoro hunoiswa. Kana hunyoro husingakwanise kudzorwa mukati menguva yakatarwa, mashandiro uye kuchengetedzeka kwebhatiri zvinokanganiswa zvakanyanya. Kazhinji, ovheni yekumonera otomatiki inoshandiswa pakubika. Ronga mabhatiri kuti abike zvakanaka, isa desiccant muovheni, isa maparameter, uye simudza tembiricha kusvika 85°C (uchishandisa mabhatiri e lithium iron phosphate semuenzaniso). Aya ndiwo maitiro ekubika emhando dzakasiyana dzemabhatiri:

Jekiseni remvuraMaitiro ekugadzira mabhatiri e lithium anosanganisira kuyedza hunyoro hwemasero emabhatiri akabikwa. Mushure mekusvika padanho rekare rekubika ndipo paunozoenderera mberi nedanho rinotevera: kubaya electrolyte. Isa mabhatiri akabikwa nekukurumidza mubhokisi remagirovhosi evacuum, yera wonyora huremu, isa pakapu yejekiseni, wobva wawedzera huremu hwakagadzirwa hwe electrolyte mukapu (kazhinji bvunzo yebhatiri inonyudzwa mumvura inoitwa: isa bhatiri mukapu pakati). Isa bhatiri mukati me electrolyte, inyike kwenguva yakati, edza kugona kwakanyanya kwemvura yebhatiri (kazhinji zadza mvura zvichienderana nehuwandu hwekuyedza), iise mubhokisi revacuum kuti ivhare (vacuum degree ≤ -0.09Mpa), uye mhanyisa kupinda kwe electrolyte mu electrode. Mushure mematanho akati wandei, bvisa zvidimbu zvebhatiri wozviyera. Verenga kana huwandu hwejekiseni huchienderana nehukuru hwedhizaini. Kana huri hushoma, hunoda kuzadzwazve. Kana hwakawandisa, ingodurura huwandu hwacho kusvika wasangana nezvinodiwa zvedhizaini. Nzvimbo yebhokisi remagirovhosi inoda tembiricha ≤23℃ uye dova point ≤-45℃.

KushongedzaMunguva yekugadzira mabhatiri e lithium, chifukidziro chebhatiri chinofanira kuiswa mubhokisi remagirovhosi pachine nguva, uye chifukidziro chebhatiri chinofanira kusungirirwa pachimiro chezasi chemuchina we super welding neruoko rumwe, uye core yebhatiri inofanira kubatwa neruoko rumwe. Gadzirisa positive lug yebhatiri ne terminal lug yechifukidziro. Mushure mekusimbisa kuti positive terminal lug yakabatana ne cap terminal lug, tsika pamuchina we ultrasonic welding. Wobva watsika switch yetsoka yemuchina we welding. Mushure mezvo, bhatiri rinofanira kuongororwa zvizere kuti rione kana welding tabs dziri kusvetukira.

Tarisa kana ma tabo ekusolder akanyatsorongeka.

Dhonza zvinyoro nyoro patebhu yekusonesa kuti uone kana yakasununguka.

Mabhatiri ane chifukidziro chebhatiri chisina kusungirirwa zvakasimba anofanira kusungirirwa patsva.