Kev tsim cov roj teeb lithium yog cov txheej txheem engineering uas xav tau kev ua haujlwm siab thiab huv. Nws yog nyob ib ncig ntawm tsib theem tseem ceeb: "Cov Khoom Siv Purification → Electrode Formation → Cell Assembly → Tshuaj Ua Haujlwm → Kev Tshawb Fawb Zoo." Thoob plaws hauv tag nrho cov txheej txheem, cov av noo, impurities, thiab cov txheej txheem yuav tsum tau tswj nruj me ntsis kom ntseeg tau tias roj teeb muaj kev nyab xeeb, muaj peev xwm, thiab lub neej voj voog. Qhov zoo-paub Tesla lub tsheb fais fab, piv txwv li, siv cov roj teeb uas muaj li 18650 lithium- ion hlwb txuas nrog hauv cov koob thiab sib npaug. Nrog kev nce qib ntawm cov tsheb tshiab lub zog, kev lag luam roj teeb hluav taws xob tau dhau los ua qhov tseem ceeb!
Cov ntaub ntawv tseem ceeb:
Cathode (Kev txiav txim siab lub zog): Lithium Iron Phosphate (LFP), Ternary cov ntaub ntawv (NCM/NCA, xws li, Lithium Nickel Cobalt Manganese Oxide).
Anode (Kev txiav txim siab lub neej voj voog): Ntuj Graphite / Artificial Graphite (mainstream), Silicon-Cov ntaub ntawv Carbon Composite (kev taw qhia rau siab- muaj peev xwm hloov kho).
Electrolyte (Ion thauj nruab nrab): Lithium Hexafluorophosphate (LiPF₆) + Carbonate-raws li cov kuab tshuaj organic (xws li EC/DMC).
Separator (Kev Tiv Thaiv luv luv): Polypropylene (PP) / Polyethylene (PE) composite membrane (Porosity 40% -50%).
Cell
Nyob ntawm daim ntawv thov scenario (EV / Zog Cia / Consumer Electronics), cov hlwb raug categorized rau hauv Cylindrical, Prismatic, thiab hnab ntim, nrog me ntsis kev hloov hauv cov txheej txheem sib dhos:
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Hom Cell |
Txoj kev sib dhos |
Cov Khoom Muag Khoom |
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Cylindrical |
Winding (Electrodes + cais qhov txhab rau hauv lub tog raj kheej) |
Tesla 18650/4680, Panasonic 21700 |
|
Prismatic |
Stacking (Electrodes + cais txheej txheej los ntawm txheej) |
CATL Ternary Lithium Prismatic Roj teeb (rau EV) |
|
Hnab |
Stacking (Packaged hauv aluminium- zaj duab xis yas) |
Txawb xov tooj / Laptop roj teeb |
21-Txoj kev ua haujlwm khiav haujlwm:
Kauj Ruam 1: Anode Slurry Mixing
Kauj Ruam 2: Cathode Slurry Mixing
Kauj Ruam 3: Txheej
Kauj ruam 4: Calendering
Kauj Ruam 5: Slitting
Kauj Ruam 6: Qhuav
Kauj Ruam 7: Winding
Kauj Ruam 8: Case Insertion
Kauj Ruam 9: Spot Welding
Kauj Ruam 10: Ci
Kauj Ruam 11: Electrolyte Filling
Kauj Ruam 12: Cap Vuam
Kauj Ruam 13: Ntxuav
Kauj Ruam 14: Qhuav Cia
Kauj Ruam 15: Kev soj ntsuam kev sib tw
Kauj Ruam 16: Case Laser Marking
Kauj Ruam 17: Tsim
Kauj Ruam 18: Kev ntsuas OCV
Kauj Ruam 19: Ambient Temperature Cia
Kauj Ruam 20: Peev Xwm Qib
Kauj Ruam 21: Kev Tshawb Fawb Kawg
100% kev tshuaj xyuas tag nrho yog ua, nrog rau cov khoom tsis yog -cov khoom raug tshem tawm ncaj qha. Cov khoom tseem ceeb ntawm kev tshuaj xyuas yog raws li nram no:
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Hom tshuaj ntsuam xyuas |
Txuj Kev Cai |
Lub hom phiaj |
|
Peev Xwm Test |
Muaj Peev Xwm Muaj Peev Xwm Ntau dua lossis sib npaug li 95% ntawm Rated Capacity (0.5C nqi / tso tawm) |
Ua kom muaj kev ua raws li ntau yam |
|
Cycle Life Test |
Lub peev xwm tuav tau ntau dua lossis sib npaug li 80% tom qab 1000 cycles |
Verifies durability |
|
Kev kuaj kev nyab xeeb |
Tsis muaj hluav taws kub / tawg thaum overcharge (1.2x voltage), luv Circuit Court, Thermal Shock (85 degree) |
Ua raws li UL 9540A / IEC 62133 Cov Qauv |
|
Qhov tshwm sim / Dimension Inspection |
Tsis muaj khawb, o; Dimensional kam rau ua ± 0.2mm |
Xyuas kom compatibility nrog downstream los ua ke |
|
Internal Resistance Test |
Internal Resistance Tsawg dua los yog sib npaug rau 50mΩ (Polymer Pouch Cell) |
Guarantees nqi / tso tawm efficiency |
