Ndi chitukuko chofulumira chalithiamu batiremafakitale, zochitika zogwiritsira ntchito mabatire a lithiamu zikupitiriza kukula ndikukhala chida chofunikira kwambiri pa miyoyo ya anthu ndi ntchito.Pankhani yopanga makonda opanga batire lifiyamu, ndi lifiyamu batire kupanga ndondomeko makamaka zikuphatikizapo zosakaniza, ❖ kuyanika, sheeting, kukonzekera, mapiringidzo, zipolopolo, anagudubuza, kuphika, madzi jekeseni, kuwotcherera, etc. njira yopangira batire ya lithiamu.Zosakaniza zabwino za electrode Ma electrode abwino a mabatire a lithiamu amapangidwa ndi zinthu zogwira ntchito, ma conductive agents, zomatira, etc. Choyamba, zopangira zimatsimikiziridwa ndikuwotcha.Nthawi zambiri, conductive agent iyenera kuphikidwa pa ≈120 ℃ kwa maola 8, ndipo zomatira za PVDF ziyenera kuphikidwa pa ≈80 ℃ kwa maola 8.Kaya zinthu zogwira ntchito (LFP, NCM, etc.) zimafuna kuphika ndi kuyanika zimadalira momwe zinthu zilili.Pakalipano, msonkhano wa batire wa lithiamu umafunika kutentha ≤40 ℃ ndi chinyezi ≤25% RH.Mukamaliza kuyanika, guluu wa PVDF (PVDF solvent, NMP solution) ayenera kukonzekeratu.Ubwino wa guluu wa PVDF ndiwofunikira pakukana kwamkati komanso magwiridwe antchito amagetsi a batri.Zinthu zomwe zimakhudza kugwiritsa ntchito guluu ndi kutentha komanso kuthamanga kwamphamvu.Kutentha kwapamwamba, chikasu cha guluu chidzakhudza kumamatira.Ngati kuthamanga kwa kusakaniza kuli kofulumira kwambiri, guluu likhoza kuwonongeka mosavuta.Kuthamanga kwina kozungulira kumadalira kukula kwa diski yobalalika.Nthawi zambiri, liwiro la liniya la disk dispersion ndi 10-15m/s (kutengera zida).Panthawiyi, thanki yosakaniza imayenera kuyatsa madzi ozungulira, ndipo kutentha kuyenera kukhala ≤30 ° C.

Onjezerani cathode slurry mumagulu.Panthawi imeneyi, muyenera kumvetsera dongosolo la kuwonjezera zipangizo.Choyamba yikani zinthu yogwira ndi conductive wothandizira, yambitsani pang'onopang'ono, kenaka yikani guluu.Nthawi yodyetsera ndi kudyetsa chiŵerengero chiyeneranso kutsatiridwa mosamalitsa malinga ndi ndondomeko ya kupanga batire ya lithiamu.Kachiwiri, liwiro lozungulira komanso kuthamanga kwa zida ziyenera kuyendetsedwa mosamalitsa.Nthawi zambiri, kuthamanga kwa mzere wobalalika kuyenera kukhala kupitilira 17m/s.Izi zimatengera magwiridwe antchito a chipangizocho.Opanga osiyanasiyana amasiyana kwambiri.Komanso lamulirani vacuum ndi kutentha kwa kusakaniza.Panthawi imeneyi, tinthu kukula ndi mamasukidwe akayendedwe a slurry ayenera nthawi wapezeka.Kukula kwa tinthu ndi mamasukidwe akayendedwe zimagwirizana kwambiri ndi olimba okhutira, katundu katundu, kudyetsa zinayendera ndi lifiyamu batire kupanga ndondomeko.Panthawi imeneyi, ndondomeko ochiritsira amafuna kutentha ≤30 ℃, chinyezi ≤25% RH, ndi zingalowe digiri ≤-0.085mpa.Tumizani slurry ku thanki yosinthira kapena malo ogulitsa utoto.Pambuyo poti slurry itachotsedwa, iyenera kufufuzidwa.Cholinga chake ndikusefa tinthu tating'onoting'ono, kutsitsa ndikuchotsa ferromagnetic ndi zinthu zina.Tinthu tating'onoting'onoting'onoting'onoting'onoting'onoting'onoting'onoting'onoting'onoting'onoting'ono ndipo titha kupangitsa kuti batire iwonongeke kwambiri kapena kuwopsa kwafupipafupi;Kuchulukitsitsa kwa ferromagnetic mu slurry kumatha kupangitsa kuti batire idziyike kwambiri komanso zolakwika zina.Zofunikira pakupanga batire ya lithiamu iyi ndi: kutentha ≤ 40 ° C, chinyezi ≤ 25% RH, kukula kwa mesh screen ≤ 100 mesh, ndi kukula kwa tinthu ≤ 15um.

Negative electrodezosakaniza The negative elekitirodi wa lithiamu batire wapangidwa zinthu yogwira, conductive wothandizira, binder ndi dispersant.Choyamba, kutsimikizira zopangira.Dongosolo lachizoloŵezi la anode ndi njira yosakanikirana ndi madzi (zosungunulira ndi madzi a deionized), kotero palibe zofunikira zowuma zapadera za zipangizo.Njira yopangira batire ya lithiamu imafuna kuti madzi a deionized akhale ≤1us/cm.Zofunikira pa msonkhano: kutentha ≤40 ℃, chinyezi ≤25% RH.Konzani zomatira.Zida zitadziwika, guluu (wopangidwa ndi CMC ndi madzi) uyenera kukonzedwa kaye.Panthawiyi, tsanulirani graphite C ndi conductive wothandizira mu chosakanizira cha kusakaniza kouma.Ndibwino kuti musatsutse kapena kuyatsa madzi ozungulira, chifukwa particles ndi extruded, kuzitikita ndi kutentha pa youma kusakaniza.Liwiro lozungulira ndilotsika kwambiri 15 ~ 20rpm, kuzungulira ndi kupukuta ndi nthawi 2-3, ndipo nthawi yapakati ndi ≈15min.Thirani guluu mu chosakanizira ndikuyamba kupukuta (≤-0.09mpa).Finyani mphira pa liwiro otsika 15 ~ 20rpm kwa 2 nthawi, ndiye kusintha liwiro (otsika liwiro 35rpm, mkulu liwiro 1200 ~ 1500rpm), ndi kuthamanga pafupifupi 15min ~ 60min malinga ndi ndondomeko yonyowa aliyense wopanga.Pomaliza, tsanulirani SBR mu blender.Kuthamanga kotsika kumalimbikitsidwa chifukwa SBR ndi polima lalitali la unyolo.Ngati liwiro lozungulira liri lothamanga kwambiri kwa nthawi yayitali, unyolo wa mamolekyulu umasweka mosavuta ndikutaya ntchito.Ndi bwino kusonkhezera pa liwiro otsika 35-40rpm ndi mkulu liwiro la 1200-1800rpm kwa mphindi 10-20.Yesani mamasukidwe akayendedwe (2000 ~ 4000 mPa.s), kukula kwa tinthu (35um≤), zolimba (40-70%), digiri ya vacuum ndi mesh yowonekera (≤100 mesh).Enieni ndondomeko makhalidwe adzasiyana malinga ndi thupi katundu wa zinthu ndi ndondomeko kusanganikirana.Msonkhanowu umafunika kutentha ≤30 ℃ ndi chinyezi ≤25% RH.Kupaka cathode ≈20 ~ 40 mg/cm2 (20 ~ 40 mg/cm2) ≈20 ~ 40 mg / cm2 (ternary lithiamu batire mtundu AB).Kutentha kwa ng'anjo nthawi zambiri kumakhala pamwamba pa 4 mpaka 8 mfundo, ndipo kutentha kwa chigawo chilichonse kumasinthidwa pakati pa 95 ° C ndi 120 ° C malinga ndi zofunikira zenizeni kuti mupewe ming'alu yodutsa ndi kudontha kwa zosungunulira panthawi yophika.Kuthamanga kwa ❖ kuyanika kwa ❖ kuyanika ndi 1.1-1.2, ndipo malo apakati amachepetsedwa ndi 20-30um kuti apewe kuphatikizika kwakukulu kwa malo olembera chifukwa cha tailing panthawi yoyendetsa batire, zomwe zingayambitse mpweya wa lithiamu.Kupaka chinyezi ≤2000-3000ppm (malingana ndi zinthu ndi ndondomeko).Kutentha kwabwino kwa elekitirodi mu msonkhano ndi ≤30 ℃ ndi chinyezi ndi ≤25%.Chithunzi chojambula ndi chotere: Chithunzi chojambula cha tepi yokutira

Thekupanga batri ya lithiamundondomeko yazokutira za electrode negativeamatanthauza extruding kapena kupopera mpweya zoipa elekitirodi slurry pa AB pamwamba mkuwa wotolera panopa.Kachulukidwe kamodzi pamwamba ≈ 10 ~ 15 mg/cm2.Kutentha kwa ng'anjo yophimba nthawi zambiri kumakhala ndi magawo 4-8 (kapena kupitilira apo), ndipo kutentha kwa gawo lililonse ndi 80 ℃ ~ 105 ℃.Ikhoza kusinthidwa malinga ndi zofunikira zenizeni kuti mupewe ming'alu yophika ndi ming'alu yodutsa.Kuthamanga kwa liwiro la 1.2-1.3, kusiyana kumachepetsedwa 10-15um, ndende ya utoto ndi ≤3000ppm, kutentha kwa electrode mumsonkhanowu ndi ≤30 ℃, ndipo chinyezi ndi ≤25%.Pambuyo zokutira zabwino za mbale zabwino zowuma, ng'oma iyenera kulumikizidwa mkati mwa nthawi.Wodzigudubuza amagwiritsidwa ntchito kugwirizanitsa pepala la electrode (kuchuluka kwa kuvala pa voliyumu ya unit).Pakadali pano, pali njira ziwiri zabwino zotsatsira ma elekitirodi pakupanga batire ya lithiamu: kukanikiza kotentha ndi kuzizira.Poyerekeza ndi kukanikiza kozizira, kukanikiza kotentha kumaphatikizana kwambiri komanso kutsika kwa rebound.Komabe, kuzizira kozizira ndikosavuta komanso kosavuta kugwiritsa ntchito ndikuwongolera.Zida zazikulu za wodzigudubuza ndi kukwaniritsa ndondomeko zotsatirazi, compaction density, rebound rate ndi elongation.Pa nthawi yomweyi, ziyenera kukumbukiridwa kuti tchipisi tating'onoting'ono, zolimba zolimba, zida zakugwa, m'mphepete mwa wavy, ndi zina zotere siziloledwa pamwamba pa ndodo, ndipo kusweka sikuloledwa mumipata.Panthawi imeneyi, kutentha malo msonkhano: ≤23 ℃, chinyezi: ≤25%.Kachulukidwe weniweni wa zida zamakono:

Nthawi zambiri compaction:

Mlingo wobwereza: wamba wobwereranso 2-3 μm

Elongation: Tsamba labwino la elekitirodi nthawi zambiri ndi ≈1.002

Pambuyo pa mpukutu wabwino wa electrode watsirizidwa, sitepe yotsatira ndiyo kugawa chidutswa chonse cha electrode kukhala timizere tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono (zogwirizana ndi kutalika kwa batri).Pamene slitting, kulabadira burrs wa mtengo chidutswa.Ndikofunikira kuyang'ana mozama zamitengo ya ma burrs munjira za X ndi Y mothandizidwa ndi zida zamitundu iwiri.Kutalika kwa burr kutalika kwa Y≤1/2 H makulidwe a diaphragm.Kutentha kozungulira kwa msonkhanowu kuyenera kukhala ≤23 ℃, ndipo mame ayenera kukhala ≤-30 ℃.Njira zopangira mapepala opangira ma elekitirodi a lifiyamu batire negative electrode sheet ndizofanana ndi ma elekitirodi abwino, koma kapangidwe kake ndi kosiyana.Kutentha kozungulira kwa msonkhanowo kuyenera kukhala ≤23 ℃ ndipo chinyezi chizikhala ≤25%.Kachulukidwe weniweni wa zinthu wamba negative electrode:

Kuphatikizika koyipa kwa ma elekitirodi komwe kumagwiritsidwa ntchito: Kubwereranso: General rebound 4-8um Elongation: Positive mbale nthawi zambiri ≈ 1.002 Kapangidwe ka lithiamu batire zabwino ma elekitirodi kuvula ndi ofanana ndi zabwino ma elekitirodi kuvumbula ndondomeko, ndipo onse ayenera kulamulira burrs mu X ndi Y mayendedwe.Kutentha kozungulira kwa msonkhanowu kuyenera kukhala ≤23 ℃, ndipo mame ayenera kukhala ≤-30 ℃.Pambuyo pokonzeka kuvula mbale yabwino, mbale yabwino iyenera kuumitsidwa (120 ° C), ndiyeno pepala la aluminiyamu limakulungidwa ndi kupakidwa.Panthawi imeneyi, kutalika kwa tabu ndi kukula kwake kumafunika kuganiziridwa.Kutengera kapangidwe ka **650 (monga batire la 18650) mwachitsanzo, kapangidwe kamene kamakhala ndi ma tabo owonekera makamaka ndikuganizira mgwirizano wokwanira wa ma cathode pa nthawi yowotcherera kapu ndi roll groove.Ngati ma tabu amtengowo awonetsedwa kwa nthawi yayitali kwambiri, kuzungulira kwachidule kumatha kuchitika mosavuta pakati pa mapuloti amtengo ndi chipolopolo chachitsulo panthawi yogubuduza.Ngati chikwamacho ndi chachifupi kwambiri, kapu sichingagulitsidwe.Pakali pano, pali mitundu iwiri ya akupanga kuwotcherera mitu: liniya ndi mfundo zoboola pakati.Njira zapakhomo nthawi zambiri zimagwiritsa ntchito mitu yowotcherera yokhala ndi mizere yowotcherera chifukwa cha mphamvu zowotcherera.Kuonjezera apo, guluu wotentha kwambiri amagwiritsidwa ntchito kuphimba ma tabo a solder, makamaka kupewa chiopsezo cha maulendo afupipafupi omwe amayamba chifukwa cha zitsulo zachitsulo ndi zinyalala zachitsulo.Kutentha kozungulira kwa msonkhanowu kuyenera kukhala ≤23 ℃, mame akuyenera kukhala ≤-30 ℃, ndipo chinyezi cha cathode chiyenera kukhala ≤500-1000ppm.

Kukonzekera Kwambale ZoyipaMbale yolakwika iyenera kuumitsidwa (105-110 ° C), ndiye mapepala a nickel amawotchedwa ndi kupakidwa.Kutalika kwa tabu ya solder ndi kukula kwake kumafunikanso kuganiziridwa.Kutentha kozungulira kwa msonkhanowo kuyenera kukhala ≤23 ℃, mame akuyenera kukhala ≤-30 ℃, ndipo chinyezi cha electrode yoyipa kuyenera kukhala ≤500-1000ppm.Kumangirira ndikumangirira cholekanitsa, pepala labwino la elekitirodi ndi pepala loyipa la elekitirodi kukhala pachimake chachitsulo kudzera pamakina okhotakhota.Mfundo ndi kukulunga elekitirodi zabwino ndi elekitirodi zoipa, ndiyeno kulekanitsa maelekitirodi zabwino ndi zoipa kudzera olekanitsa.Popeza ma elekitirodi olakwika a dongosolo lachikhalidwe ndi ma elekitirodi owongolera a kapangidwe ka batri, kapangidwe kake kamakhala kokulirapo kuposa ma elekitirodi abwino, kotero kuti pakulipiritsa kwa mapangidwe, Li + ya ma elekitirodi abwino imatha kusungidwa mu "malo" amagetsi. electrode negative.Chisamaliro chapadera chiyenera kulipidwa pazovuta zomangirira ndi makonzedwe amtengo wamtengo pozungulira.Kukanika kocheperako kumakhudza kukana kwamkati ndi kuchuluka kwa kuyika kwa nyumba.Kuthamanga kwambiri kungayambitse chiopsezo chafupipafupi kapena kugwedeza.Kuyanjanitsa kumatanthauza malo achibale a elekitirodi yolakwika, ma elekitirodi abwino, ndi olekanitsa.M'lifupi electrode negative ndi 59.5 mm, electrode zabwino ndi 58 mm, ndi olekanitsa ndi 61 mm.Zitatuzi zimagwirizanitsidwa panthawi yosewera kuti zipewe chiopsezo cha maulendo afupiafupi.Kulimbana kokhotakhota kumakhala pakati pa 0.08-0.15Mpa pamtengo wabwino, 0.08-0.15Mpa pamtengo woipa, 0.08-0.15Mpa pa diaphragm yapamwamba, ndi 0.08-0.15Mpa ya diaphragm yapansi.Kusintha kwapadera kumadalira zida ndi ndondomeko.Kutentha kozungulira kwa msonkhanowu ndi ≤23 ℃, mame ndi ≤-30 ℃, ndipo chinyezi ndi ≤500-1000ppm.

Batire ya batire isanayikidwe pamlanduwo, kuyesa kwa Hi-Pot kwa 200 ~ 500V kumafunika (kuyesa ngati batire yothamanga kwambiri ndi yochepa), komanso kupukuta kumafunikanso kuwongolera fumbi musanayike. mlandu.Malo atatu olamulira mabatire a lithiamu ndi chinyezi, ma burrs ndi fumbi.Ndondomeko yapitayi ikamalizidwa, ikani gasket m'munsi mwa batire pachimake, pindani pepala zabwino elekitirodi kuti pamwamba kuyang'ana pa batire pachimake mapiringidzo pinhole, ndipo potsiriza amaika vertically mu chipolopolo zitsulo kapena aluminiyamu chipolopolo.Kutengera mtundu 18650 mwachitsanzo, m'mimba mwake akunja ≈ 18mm + kutalika ≈ 71.5mm.Pamene chigawo chapakati cha chilonda chimakhala chocheperako kusiyana ndi gawo lamkati lachitsulo chachitsulo, chitsulo choyikapo chitsulo chimakhala pafupifupi 97% mpaka 98.5%.Chifukwa mtengo wobwereranso wamtengowo komanso kuchuluka kwa kulowa kwamadzimadzi panthawi yobaya pambuyo pake ziyenera kuganiziridwa.Njira yofanana ndi kuyika pansi kumaphatikizapo kusonkhana kwapamwamba.Kutentha kozungulira kwa msonkhanowu kuyenera kukhala ≤23 ℃, ndipo mame ayenera kukhala ≤-40 ℃.

Kugudubuzikaamayika pini ya solder (yomwe nthawi zambiri imapangidwa ndi mkuwa kapena aloyi) pakati pa solder pachimake.Zikhomo zowotcherera zomwe zimagwiritsidwa ntchito kawirikawiri ndi Φ2.5 * 1.6mm, ndipo mphamvu yowotcherera ya electrode yolakwika iyenera kukhala ≥12N kuti ikhale yoyenera.Ngati ndizochepa kwambiri, zingayambitse kutsekemera kwapadera komanso kukana kwambiri mkati.Ngati ndipamwamba kwambiri, ndikosavuta kuwotcherera faifi tambala pamwamba pa chipolopolo chachitsulo, zomwe zimapangitsa kuti pakhale ma solder, zomwe zimatsogolera ku zoopsa zobisika monga dzimbiri ndi kutayikira.Kumvetsetsa kosavuta kwa rolling groove ndikukonza pakati pa batri pachilonda popanda kugwedeza.Popanga batire iyi ya lifiyamu, chidwi chapadera chiyenera kuperekedwa pakufananiza kwa liwiro lopingasa extrusion ndi liwiro longitudinal kukanikiza kuti apewe kudula casing pa liwiro lapamwamba kwambiri, ndipo wosanjikiza wa fayilo wa mphako udzagwa ngati. liwiro longitudinal ndilothamanga kwambiri kapena kutalika kwa notch kudzakhudzidwa ndipo kusindikiza kudzakhudzidwa.Ndikofunikira kuyang'ana ngati ndondomeko ya kuya kwa groove, kutambasuka ndi kutalika kwa groove zikugwirizana ndi miyezo (pogwiritsa ntchito mawerengedwe owerengetsera).Makulidwe a hob wamba ndi 1.0, 1.2 ndi 1.5 mm.Mukamaliza kugubuduza, makina onse ayenera kutsukidwanso kuti apewe zinyalala zachitsulo.Digiri ya vacuum iyenera kukhala ≤-0.065Mpa, ndipo nthawi yopuma iyenera kukhala 1 ~ 2s.Zomwe zimafunikira kutentha kwa msonkhanowu ndi ≤23 ℃, ndipo mame ndi ≤-40 ℃.Kuphika kwa batri Pambuyo pa mapepala a batri ya cylindrical atakulungidwa ndi kudulidwa, njira yotsatira yopanga batire ya lithiamu ndiyofunikira kwambiri: kuphika.Pakupanga maselo a batri, kuchuluka kwa chinyezi kumayambitsidwa.Ngati chinyezi sichingathe kuyendetsedwa mkati mwa nthawi yoyenera, ntchito ndi chitetezo cha batri zidzakhudzidwa kwambiri.Nthawi zambiri, ng'anjo ya vacuum imagwiritsidwa ntchito pophika.Konzani maselo kuti aziphika bwino, ikani desiccant mu uvuni, ikani magawo, ndikukweza kutentha kwa 85 ° C (kutenga ma batri a lithiamu iron phosphate monga chitsanzo).Zotsatirazi ndi zophikira zamitundu ingapo yama cell a batri:

Jekeseni wamadzimadziNjira yopangira batire ya lithiamu imaphatikizapo kuyesa chinyezi cha ma cell a batri ophika.Pokhapokha mutakwaniritsa zophikira zam'mbuyomu zomwe mungapite ku sitepe yotsatira: jekeseni electrolyte.Ikani mabatire ophika mwachangu mu bokosi la vacuum glove, yezani ndikulemba kulemera kwake, ikani kapu ya jakisoni, ndikuwonjezera kulemera kwake kwa electrolyte mu kapu (nthawi zambiri kuyezetsa kwa batri yomizidwa ndi madzi kumachitika: ikani batire mu kapu. pakati).Ikani pachimake batri mu electrolyte, zilowerereni kwa kanthawi, yesani kuchuluka kwa madzi mayamwidwe a batri (nthawi zambiri mudzaze madziwo molingana ndi voliyumu yoyesera), ikani mu bokosi la vacuum kuti muchotse (digrii ya vacuum ≤ - 0.09Mpa), ndikufulumizitsa kulowa kwa electrolyte mu electrode.Pambuyo maulendo angapo, chotsani zidutswa za batri ndikuziyeza.Werezerani ngati voliyumu ya jakisoniyo ikugwirizana ndi mtengo wapangidwe.Ngati ndi yaying'ono, iyenera kuwonjezeredwa.Ngati pali zambiri, ingotsanulirani zowonjezerazo mpaka mutakwaniritsa zofunikira zapangidwe.Malo a bokosi la glove amafuna kutentha ≤23 ℃ ndi mame ≤-45 ℃.

KuwotchereraPanthawi yopangira batire ya lithiamu, chivundikiro cha batri chiyenera kuikidwa mu bokosi la glove pasadakhale, ndipo chivundikiro cha batri chiyenera kukhazikitsidwa pa nkhungu yapansi ya makina otsekemera kwambiri ndi dzanja limodzi, ndipo maziko a batri ayenera kuchitidwa ndi wina. dzanja.Gwirizanitsani cholumikizira chabwino cha batri ndi chotchinga chachitetezo.Mukatsimikizira kuti cholumikizira chabwino chikugwirizana ndi kapu yolumikizira, pondani makina opangira kuwotcherera akupanga.Kenako pondani phazi la makina owotcherera.Pambuyo pake, gawo la batri liyenera kuyang'aniridwa bwino kuti muwone momwe kuwotcherera kwa ma tabu a solder.

Onani ngati ma tabo a solder akugwirizana.

Kokani pang'onopang'ono pa solder tabu kuti muwone ngati yamasuka.

Mabatire omwe chivundikiro cha batri chawo sichimawotcherera mwamphamvu amayenera kumangidwanso.