Kambani Blog
Huru Kuzarurwa kweiyo Yese Lithium Battery Manufacturing process
- Negative electrode slurry mixing
Negative electrode slurry mixing ndiyo imwe yeakakosha links mukugadzira lithium bhatiri. Mukuita uku, negative electrode active materials, conductive agents, binders nezvimwe zvinhu zvinosanganiswa pamwechete kuti zvigadzire yunifomu paste kuburikidza nekukanya. Iyo yakasanganiswa slurry inoda kugadziriswa. Semuenzaniso, nzira dzakadai se ultrasonic degassing uye vacuum degassing dzinoshandiswa kubvisa mabhubhu uye tsvina uye kugadzirisa kuzara, kugadzikana uye kugadziriswa kwe slurry.
- Positive electrode slurry mixing
Positive electrode slurry mixing yakakoshawo zvakanyanya. Inosanganisa yakanaka electrode inoshanda zvinhu, conductive agents, binders uye zvimwe zvinowedzera kuita yunifomu slurry, ichiisa hwaro hwemaitirwo anotevera akadai sekupfeka nekutsikirira. Kubatsira kweiyo yakanaka electrode slurry kusanganisa maitiro ndeyekuti inogona kuve nechokwadi chekuti yakanaka electrode zvinhu zvakasanganiswa zvizere nechikamu chimwe nechimwe uye inovandudza kushanda kwebhatiri uye kugadzikana. Nekunyatso kudzora slurry ratio uye process parameters, yakanaka electrode zvinhu zvine yakagadzikana kuita uye yakavimbika mhando inogona kugadzirirwa.
- Coating
Coating tekinoroji inzira yekupfekedza zvinonamira uye zvimwe zvinwiwa pane substrate uye kugadzira yakakosha inoshanda firimu layer mushure mekuoma kana kurapa muovheni. Inoshandiswa zvakanyanya mumaindasitiri mazhinji akadai seindasitiri, raramo yevanhu, zvemagetsi uye optoelectronics. Zvakanakira zvaro zvinosanganisira kushanda zvakanaka kwepamusoro, izvo zvinogona kuona kukurumidza-kumhanya uye kuenderera mberi kwekupfeka mashandiro; kufanana, kuve nechokwadi chekuputira yunifomu ukobvu kuburikidza neiyo chaiyo control system; kuchinjika, kwakakodzera kune dzakasiyana siyana substrates uye kupfeka zvinhu; kuchengetedzwa kwezvakatipoteredza, kushandisa yakaderera-kusvibiswa uye yakaderera-simba-kushandisa midziyo uye maitiro.
- Rolling
Muchina wemagetsi unoodza anode uye cathode zvinhu kuita zvidimbu zvidiki kana kunyatsogadzirisa akawanda matete mapepa pamwechete kuti aumbe yakasimba yakanaka uye yakaipa electrode chimiro. Inoumbwa neshaft huru, mavhiri ekukuya, mudziyo wekudyisa, hurongwa hwekutumira uye hurongwa hwekutonga. Paunenge uchishanda, iyo lithium bhatiri zvinhu inotumirwa muchiteshi chekudya, iyo shaft huru inotyaira vhiri rekukuya kuti ritenderere, uye zvinhu zvacho zvinoiswa sandwich pakati pemavhiri maviri ekukuya uye kumanikidzwa mune inodiwa chimiro uye saizi. Hunhu hwayo hwehunyanzvi hunoratidzwa mukubudirira kwepamusoro, kufanana, kuchinjika uye kuchengetedza kwezvakatipoteredza.
- Slitting
Slitting inoita basa rakakosha mukugadzira bhatiri. Iyo inocheka kwenguva yakareba iyo yakavharidzirwa firimu kuita zvidimbu zvakawanda uye inoatenderedza kuita epamusoro neakadzika ma rolls ehumwe hupamhi hutsananguro kugadzirira kunotevera kuungana kwebhatiri.
- Pole piece kubika
Pole piece baking ine chinangwa chekubvisa hunyoro uye inoshanduka organic komisheni muchidimbu chedanda kuti uvandudze kugadzikana uye kuvimbika kwepazi chidimbu. Kubika kunosanganisira danho rekugadzirira, iro rinosanganisira kutarisa uye kupisa midziyo uye pretreating pole piece; danho rekubheka, rinoitwa maererano nenguva yakatarwa uye tembiricha; uye nhanho yekutonhora, iyo inodzivirira chidimbu chedanda kubva mukupisa kwekupisa uye inogadzirisa kushanda kwayo.
- Winding
Kupeta mhepo zvine simba iyo electrode yakanaka, negative electrode, separator uye zvimwe zvinoumba pamwe chete kugadzira bhatiri sero. Kunyatso mhepo kunodzora kunogona kuve nechokwadi chekugovera kwakafanana kwezvinhu mukati mebhatiri uye kunatsiridza kushanda nesimba uye kuchengeteka. Makiyi ma paramita akadai sekumhanya kwemhepo, kushushikana uye kurongeka zvine zvakakosha pakuita kwebhatiri uye kunaka.
- Casing kuiswa
Iyo casing yekuisa maitiro ndiyo yakakosha link mukugadzirwa kwebhatiri. Kuisa bhatiri sero mubheteri kesi inogona kuchengetedza bhatiri sero uye kuve nechokwadi chekuchengetedza uye kugadzikana kwekuita. Maitiro acho anosanganisira bhatiri cell kusangana, bhatiri kesi kusangana, sealant application, bhatiri cell placement, bhatiri kesi kuvharwa uye welding fixation.
- Spot welding
Iyo bhatiri nzvimbo welding process inopinza iyo electrode zvinhu pane bhatiri chikamu kune conductive strip. Uchishandisa iyo musimboti wekupokana kudziyisa, pakarepo yakakwirira-tembiricha kupisa inonyungudutsa iyo welding zvinhu kuti igadzire solder joint yekubatanidza. Kuyerera kwemaitiro kunosanganisira basa rekugadzirira, kuseta maparamendi, kuisa zvikamu zvebhatiri, kuita welding, kuongorora kunaka kwewelding uye kuita rework kana kugaya. Iyo spot welding process inoramba ichigadziridzwa uye inogadzirwa. Semuyenzaniso, kuunza robhoti welding tekinoroji kuvandudza kushanda zvakanaka uye optimization paramita kuvandudza mhando uye kugadzikana.
- Kubika
Iyo bhatiri yekubika nzira inobvisa unyoro mukati nekunze kwebhatiri kuti uvandudze kugadzikana uye kuvimbika. Inobatsirawo nekutenderera kwewelding uye inotevedzera kuchembera kwebhatiri. Iwo chaiwo maitiro anosanganisira kugadzika tembiricha, kudziyisa uye preheating, kubikwa kwakagadzikana, kutonhora uye kuvhara, uye kuongorora nekusimbisa.
- Jekiseni remvura
Mukugadzira bhatiri, jekiseni remvura rinotonga huwandu uye nguva yejekiseni remvura electrolyte uye inobaya electrolyte mubhatiri kubva pachiteshi chejekiseni. Chinangwa ndechekugadzira ion chiteshi kuti ive nechokwadi chekutenderera kutenderera kwe lithium ions pakati peakanaka uye asina kunaka electrode mapepa. Kuyerera kwemaitiro kunosanganisira pretreatment, jekiseni remvura, kuiswa uye kuona.
- Welding chivharo
Iyo welding cap process inogadzirisa chivharo chebhatiri pabhatiri kuchengetedza mukati mebhatiri kubva mukukuvadzwa uye kuve nechokwadi chekuparadzaniswa kwakachengeteka kweiyo yakanaka uye yakaipa electrode. Nekuvandudza tekinoroji, midziyo yewelding uye tekinoroji zvinoramba zvichigadziriswa kuderedza mutengo uye kugadzirisa mashandiro.
- Kuchenesa
Battery kugadzira kucheneswa kunobvisa tsvina, tsvina uye zvisaririra pabhatiri pamusoro kuvandudza kushanda kwebhatiri uye hupenyu. Nzira dzekuchenesa dzinosanganisira nzira yekunyudza, nzira yekupfapfaidza uye nzira yekuchenesa ye ultrasonic.
- Dry storage
Dry storage inovimbisa yakaoma uye isina hunyoro-isina mukati nharaunda yebhatiri. Hunyoro huchakanganisa kushanda kwebhatiri uye hupenyu uye kunyange kukonzera njodzi dzekuchengetedza. Zvinodiwa zvezvakatipoteredza zvinosanganisira kudzora tembiricha pa20 - 30°C, humidity control pa30 - 50%, uye twunhu twunhu hwemhando yemhepo hahufanire kudarika 100,000 particles/cubic meter uye kusefa. Nzira mbiri dzekuomesa vacuum uye kuomeswa kweovheni dzinogamuchirwa.
- Kuona kurongeka
Battery alignment inoreva kurongeka kwezvinzvimbo uye makona ezvikamu zvemukati, izvo zvinoenderana nechimiro chemuviri, kuita kwe electrochemical uye kuchengetedzwa kwebhatiri. Maitiro ekuona anosanganisira nhanho yekugadzirira, kuisa bhatiri kuti iongororwe, kutora mifananidzo, kugadzirisa kwemifananidzo, kuona kumucheto, kuverenga kurongeka, kuona kurongeka uye kurekodha mhinduro. Mhando dzakasiyana dzemabhatiri uye mamiriro ekushandisa ane akasiyana ekugadzirisa zvinodiwa. Semuenzaniso, kurongeka kwakapetwa kaviri kwemabhatiri e lithium kazhinji mukati me 0.02mm.
- Case coding
Case coding mamaka ruzivo rwakasiyana senge chigadzirwa batch nhamba, barcode uye QR kodhi pane bhatiri kesi kuti ive nechokwadi chekutevera uye kuzivikanwa kwechigadzirwa. Zvinodiwa zveCoding zvinosanganisira zvemukati, nzvimbo chaiyo, hunyoro hwakajeka, kunamatira inki yakakodzera uye nguva yekuomesa.
- Formation
Kuumbwa, kunozivikanwawo se activation, inzira yakakosha mukugadzira bhatiri. Kuburikidza nemitoo yekuchaja uye yekuburitsa, zvinhu zvine electrochemically zvinoshanda mukati mebhatiri zvinobatiswa kuti zviumbe yakagadzikana yakasimba electrolyte interface firimu (SEI firimu) kuti ive nechokwadi chekushanda kwepamusoro uye kushanda kwakachengeteka kwebhatiri. Inosanganisira matanho akadai sekugadzira iyo SEI firimu panguva yekutanga kuchaja, kubhadharisa neyakatsikwa ikozvino kuti uvandudze kushanda zvakanaka, uye kuburitsa nekuchaja kuyedza kuita.
- OCV kuyerwa
OCV ndiwo mutsauko unokwanisa pakati pemaelectrode akanaka neasina kunaka ebhatiri munzvimbo yakavhurika yedunhu, ichiratidza mamiriro emukati emagetsi ebhatiri uye kuve ane hukama hwepedyo nenzvimbo yekuchaja, kugona uye hutano. Nheyo yekuyera ndeyekubvisa mutoro wekunze uye kumirira kuti kemikari yemukati mebhatiri isvike pakuenzanisa uye wozoyera iyo yakavhurika yedunhu voltage. Nzira dzinosanganisira static bvunzo nzira, yekukurumidza bvunzo nzira uye yekuchaja-discharge kutenderera bvunzo nzira.
- Normal tembiricha kuchengetedza
Yakajairika tembiricha chengetedzo chinongedzo chekuona kugadzikana kwekuita kwebhatiri uye mhando. Nekuchengetedza kwenguva pfupi, kutonhora kunodzorwa pa -20 ° C kusvika 35 ° C uye hunyoro huri 65±20% RH; kuitira kuchengetedza kwenguva refu, kutonhora kuri 10 ° C kusvika 25 ° C, hunyoro hwakafanana, uye 50% - 70% yemagetsi inoda kubhadharwa uye nguva dzose kutengesa uye kubudiswa kunodiwa. Nzvimbo yekuchengetera inofanira kunge yakaoma, isina magasi anoodza, inofefeterwa zvakanaka, uye kure nenzvimbo dzemvura, zvitubu zvemoto uye kupisa kwakanyanya.
- Capacity grading
Battery capacity grading ndeyekuronga nekutarisa mabhatiri nekugona uye kuita. Kuburikidza nekuchaja uye kuburitsa kurekodha data, data senge kugona uye kuramba kwemukati kwebhatiri rega rega rinowanikwa kuti rione giredhi remhando. Zvinangwa izvi zvinosanganisira kutariswa kwemhando, kuenzanisa simba, voltage balancing, kuve nechokwadi chekuchengetedza nekuvandudza kushanda zvakanaka.
- Final process
Kuongororwa kwechitarisiko, kukodha, kupenengura kuongorora kwechipiri, kurongedza, uye kuchengetwa kwezvigadzirwa zvakapedzwa. Iyo nzira yekugadzira ye lithium mabhatiri yakaoma uye ine hunyanzvi. Maitiro ese ane chekuita nekuita uye kunaka kwebhatiri. Kubva pakusanganiswa kwezvigadzirwa kusvika pakuongorora kwechigadzirwa chekupedzisira, chinongedzo chese chinomiririra simba rehunyanzvi uye mweya wemhizha.
Laser inochinjika inofa-yekucheka muchina (yakakosha mablades uye akaturikidzana mabhatiri)
Iyo laser inoshanduka kufa-yekucheka muchina chishandiso chinoshandisa laser tekinoroji yekufa-kucheka kugadzirisa. Iyo inogadzira yakakwira yekupisa simba kuburikidza nekutarisa kweiyo laser danda kucheka zvinhu. Iine mhando yemhando yepamusoro, yakanyatsojeka, inoshanda zvakanyanya, iri nyore kushandisa, uye ine kuchengetedzwa kwakanyanya. Inogona kuchinjwa nekiyi imwe uye ine mutengo wakaderera.
Laser danda chimedu pamusoro kurapwa midziyo
Laser scribing tekinoroji inogona kuvandudza bhatiri kutenderera chiyero uye kuderedza bhatiri yemukati kuramba, kuwedzera simba pane imwe unit nzvimbo yebhatiri, uye kugadzirisa simba density uye chiyero.
Laser kufa-kucheka mhepo uye flattening yakabatanidzwa muchina (hombe silinda φ18650 - φ60140)
Yixinfeng yakazvimiririra inogadzira laser yekucheka sisitimu ine absolute POS simba rinotevera algorithm. Iyo yakagadzikana yekugadzira kumhanya ndeye 120m/min. Muchina wakabatanidzwa unogona kugadziridzwa nekufa-kucheka uye unoenderana neAB bhatiri cell winding. Iine hupamhi hunoenderana nehupamhi. Ichi chishandiso chinogona kugadzira ese mamodheru emabhatiri maseru akadai 18/21/32/46/50/60.
Iyi marara kabati ndeyekuchengetera uye extrusion yakabatanidzwa muchina wakagadzirwa nekambani yedu yakanangana nekuunganidza uye kudzvanywa kwemarara anogadzirwa panguva yekutsemura kana kufa-kucheka maitiro ezvakanaka uye zvisina kunaka emagetsi emagetsi emabhatiri e lithium. Iyo ine hunhu hwekushanda kwakapusa, nyore kurasa tsvina, nzvimbo diki yepasi, kushanda kwakagadzikana, uye ruzha rwakadzika. Munguva yekugadzirwa kwemabhatiri e-lithium, imwe chiyero chezvimedu zvenzeve ichagadzirwa. Kana isingakwanise kunyatso kuunganidzwa uye kugadziriswa, inogona kukanganisa kuchena kwenzvimbo yekugadzira uye inogona kutokonzera njodzi dzekuchengetedza. Nekushandisa nzeve yakaraswa muunganidzwa uye compaction yakabatanidzwa muchina, tsvina pamutsetse wekugadzira inogona kucheneswa nekufamba kwenguva kuchengetedza nharaunda yekugadzira yakachena uye yakatsvinda, iyo inobatsira kuvandudza kuchengetedzwa uye kugadzikana kwekugadzira. Uyezve, imwe nzira inonyatso shanda yekuunganidza tsvina inogona kuderedza mari yebasa uye mari yenguva. Kubva pamaonero ekudzokorodza zviwanikwa, zvimedu zvenzeve zvakasungirirwa zviri nyore kugadziridzwa uye kushandiswa zvakare, izvo zvinogonesa kudzokororwa kwezviwanikwa uye zvinoenderana nepfungwa yebudiriro inoenderera.
Iyo sefa element otomatiki yekuchenesa muchina chishandiso chinoshandiswa kuchenesa mafirita zvinhu. Inowanzo shandisa zvakasiyana-siyana zvetekinoroji uye mabasa kuti zvibudirire uye zvakakwana kuchenesa mhedzisiro. Iyo sefa chinhu otomatiki yekuchenesa muchina ine hunhu hwekushanda kuri nyore uye kuchenesa kwakanaka, izvo zvinogona kuderedza mutengo uye kuwedzera hupenyu hwesevhisi yezvinhu zvefirita. Inoita basa rakakosha mukuchengetedza kuita kwakanaka kwe lithium bhatiri dhizaini yekugadzira, kuve nechokwadi chemhando yechigadzirwa, kudzora mitengo, uye kusimudzira budiriro yeindasitiri.
Ichi chishandiso chinotora nzira yekuchenesa guruva yepamhepo. Kuburikidza ne pulsed high-speed uye high-pressure jekiseni airflow kuti ibudise kudzvinyirirwa uye micro-vibration kuzadzisa chinangwa chekubvisa guruva, uye inodzokorora uye inotenderera ichienderera. Muchina wekubvisa guruva wechuru-giredhi chip kugadzira inopa yakachena, yakachengeteka, uye yakagadzikana nharaunda yekugadzira lithium mabhatiri nekudzora guruva, uye inoita basa rakakosha rekutsigira mukuvandudza kunaka, kuita, uye kugadzirwa kwe lithium mabhatiri.