Izinto eziluncedo zobuGcisa kwiZixhobo zeFoil yeAluminiyam kwiBattery Cell Packaging
Iqhutywa kukwandiswa ngokukhawuleza kweshishini elitsha lamandla, imfuno yeebhetri ze-lithium iyaqhubeka nokunyuka. Ukupakishwa kweeseli zebhetri kudlala indima ebalulekileyo ekumiseleni ubomi bebhetri, ukuxinana kwamandla, kunye nokusebenza kokhuseleko. Ngenxa yokwahluka kwayo ngokwasemzimbeni, imichiza, kunye neempawu zokuhambelana kwenkqubo, Ifoyile ye-aluminiyam ibe yinto engundoqo yokupakisha. Ngokusekelwe kwimigangatho, idatha, kunye namatyala ezicelo, eli nqaku lichaza ngokucwangcisekileyo iipropati kunye neenkqubo eziluncedo zefoyile ye-aluminium, ukubonelela ngexabiso lereferensi kubasebenzi kunye nabathengi.
I. Imvelaphi yoShishino kunye neeMfuno zeMaterial zokuPakisha iiseli zeBattery
1.1 Imisebenzi enguNdoqo yokuPakisha iiSeli kunye neeNdlela zoPhuhliso lweShishini
Imisebenzi engundoqo yokupakishwa kweeseli zebhetri ibandakanya:
- Ukukhuselwa ngokwasemzimbeni: ukuchasa impembelelo, ukugqobhoza, kunye nokuguqulwa kokukhusela amalungu angaphakathi
- Umqobo wokusingqongileyo: ukuthintela ukufuma kunye ne-oksijini ukungena ukuphepha ukuthotywa kokusebenza
- Ukutywinwa kunye nokugquma: ukwahlula iisekethe zombane kunye nokuthintela iisekethe ezimfutshane okanye ukuvuza kwe-electrolyte
Uphuhliso lwebhetri yeLithium lujonge ukuxinana kwamandla aphezulu, ukhuseleko olwandisiweyo, ubomi bomjikelezo omude, kunye noyilo olulula. Ii-elektroniki zabathengi zigxininisa iimilo ezibhityileyo kakhulu nezingaqhelekanga, iibhetri zamandla zibeka phambili ukungabikho kokhuseleko, kunye neebhetri zokugcina amandla zigxininisa ukuzinza kwexesha elide kunye nokusebenza kakuhle kweendleko. Izixhobo zemveli ziyasokola ukuhlangabezana nezi mfuno zahlukeneyo.
Ifoyile yeAluminiyam kunye iifilimu ze-aluminium-plastiki, ngenxa yobume bazo obukhaphukhaphu, ukusebenza komqobo ophezulu, kunye nokusebenza bhetyebhetye, zibe zezona zinto zikhethwayo kwingxowa kunye neebhetri zeblade, ngokungena ngokuqhubekayo kwimarike.
1.2 IiMfuno zokuSebenza eziPhambili kwiiMathiriyeli zokuPakisha iiSeli
Iimfuno zokusebenza eziphambili zezinto zokupakisha ziquka:
- Ukusebenza komqobo ophezulu:
- Inqanaba lokuhambisa amanzi e-vapor (Wvtr) ≤ 0.01 g/m²·usuku
- Inqanaba lokuhambisa ioksijini (I-otr) ≤ 0.005 cm³/m²·usuku
- Iipropathi zoomatshini: amandla aphezulu, i-elongwation, kunye nokuhlonipha ukumelana
- Ukusebenza okuzinzileyo kokutywinwa kobushushu: amandla etywina lobushushu ≥ 35 N/15 mm
- I-Electrolyte corrosion resistance
- Ikhaphukhaphu kunye nokusebenza kakuhle kweendleko
- Ukuthotyelwa kwemigaqo yokusingqongileyo njenge RoHS
1.3 Ukuthelekiswa kweZixhobo zokuPakisha iiSeli eziqhelekileyo
Izinto zangoku zokupakisha iiseli ziquka izindlu zentsimbi, iifilimu ze-aluminium-plastiki, kunye neefilimu zeplastiki. Uthelekiso luboniswe kwiThebhile 1.
| Uhlobo lwezinto eziphathekayo | Ukuqulunqwa okungundoqo | Umqobo wokuSebenza | Ukusebenza koomatshini | Inqanaba elilula | Ukulungiswa kokuguquguquka | Ukumelana ne-Electrolyte | Iindleko | Izicelo eziqhelekileyo |
|---|---|---|---|---|---|---|---|---|
| Aluminiyam ialloy izindlu | Aluminiyam ingxubevange | Egqwesileyo | Egqwesileyo (impembelelo, ucinezelo) | Phakathi (ukuxinana 2.7 g/cm³) | Ubuhlwempu | Phakathi (ifuna ukutyabeka) | Phakathi–Phakamileyo | Iprismatic, iiseli zecylindrical |
| Izindlu zentsimbi engenasici | Yenziwe ngentsimbi eshayinayo | Egqwesileyo | Egqwesileyo (amandla aphezulu) | Ubuhlwempu (ukuxinana 7.9 g/cm³) | Ubuhlwempu | Egqwesileyo | Phezulu | Amandla aphezulu kunye neebhetri ezikhethekileyo |
| Ifilimu yeAluminiyam-yeplastiki | Ifoyile yeAluminiyam + inayiloni + CPP | Egqwesileyo (kufuphi nentsimbi) | Kulungile (Ukuhlanjwa ukumelana, i-elongwation) | Egqwesileyo (50% Ikhaphukhaphu kuneemeko zentsimbi) | Egqwesileyo | Egqwesileyo | Phakathi (iyancipha ngokwenziwa kwendawo) | Isingxobo kunye neebhetri zeblade |
| Ifilimu yeplastiki | I-PET, CPP | Ubuhlwempu | Ngokulinganiselweyo | Egqwesileyo | Egqwesileyo | Ngokulinganiselweyo | Iphantsi | Iiseli zabathengi eziphantsi |
Isiphelo esingundoqo:
Ifilimu yeAluminiyam-yeplastiki, ngefoyile aluminiyam njengomaleko wesithintelo esingundoqo, ibonelela ngolungelelwaniso olulungeleleneyo lwezalathi zokusebenza eziphambili, iyenza ilunge kakhulu kwisingxobo kunye neebhetri zeblade. Ukusebenza kwefoyile ye-aluminium imisela ngokuthe ngqo umgangatho wokupakisha kwaye kufuneka ibe yingqwalasela ephambili ekukhetheni izinto eziphathekayo.
II. Iimpawu eziphambili zeAluminiyam yeFoil yokuPakisha iSeli yeBattery
Ifoyile yeAluminiyam esetyenziselwa ukupakishwa kweeseli ngokuyintloko ibandakanya i-high-purity aluminium foil (1050, 1060 uthotho) kunye nefoyile yealluminiyam (3003 uthotho). Ngeenkqubo ezikhethekileyo zokuqengqeleka kunye nonyango lwangaphezulu, ezi zinto zibonelela ngenkxaso ebalulekileyo ekusebenzeni kokupakishwa kweeseli.
2.1 Iimpawu ezisisiseko zeFoil yeAluminiyam
2.1.1 Iipropathi zomzimba
- Ikhaphukhaphu: ukuxinana 2.7 g/cm³ (isinye kwisithathu sentsimbi engenasici), ukuphucula ubuninzi bamandla
- I-Decting ephezulu: ubude 8–20%, iqengqeleka ukuya ≤ 5 μm, Ilungele umzobo onzulu
- Ukuqhuba kakuhle kwe-thermal: 237 W /(m · k), ukuqinisa ukuzinza kwe-thermal
2.1.2 Iipropati zeMichiza
- Ngokwendalo yenza umaleko oshinyeneyo we-2–5 nm Al₂O₃ oxide kwiqondo lobushushu begumbi, inika i-intrinsic oxidation kunye nokuxhathisa umhlwa
- I-zirconium engenazi-Chromium okanye i-titanium passivation yongeza ngakumbi uzinzo lwe-oxide kunye nokumelana ne-electrolyte
2.1.3 Iipropati zoomatshini
Ukusebenza koomatshini kunokulawulwa ngokuchanekileyo ngokusebenzisa i-alloying kunye neenkqubo zokuqengqeleka.
| IBanga le-alloy | Izinto eziphambili zokudibanisa | Tensile strength (MPa) | Elongation (%) | Izinto Eziluncedo Ezingundoqo | Izicelo eziqhelekileyo |
|---|---|---|---|---|---|
| 1050 | Al ≥ 99.5% | 70–130 | 5–20 | I-ductility egqwesileyo, ukumelana nomhlwa | Iiseli zabathengi ezisemgangathweni |
| 1060 | Al ≥ 99.6% | 70-180 | 8–20 | Ukucoceka okuphezulu, ukusebenza kakuhle | Umthengi ophezulu kunye neeseli zesingxobo |
| 3003 | Mn 1.0–1.5% | 110–230 | 12–20 | Amandla aphezulu, ukwakheka okuzinzileyo | Amandla kunye neebhetri zokugcina amandla |
2.2 IiMfuno eziKhethekileyo zeNkqubo yokuPakisha i-Aluminium Foil
2.2.1 I-Ultra-Thin Rolling
Ubukhulu obuqhelekileyo buvela kwi-20-40 μm, ngelixa iimveliso eziphezulu zifikelela ≤ 5 μm. Ukutenxa ukutyeba kulawulwa ngaphakathi ±4% (umgangatho ophezulu ≤ ±2%).
Umzekelo: IiChalco 0.005 mm ifilimu ye-aluminiyam yefilimu ye-aluminium-yeplastiki ixhasa iibhetri zombuso oqinileyo kunye noxinano lwamandla > 500 Wh/kg.
2.2.2 Unyango lomphezulu
Ibandakanya ukucocwa komphezulu, i-chromium-free passivation, kunye ne-nano-coatings (Al₂o₃, SiO₂), ukuphucula ukuxhathisa kwe-corrosion kunye nokuhambelana okunamathelayo ngelixa ukwandisa ukusebenza komqobo ngaphezu kwe-10 ×.
2.2.3 Ulawulo lwePinhole
Ngokutsho kwe-GB/T 3198-2020, Ifoyile yealuminiyam yeprimiyamu ifuna ingxinano yepinhole ≤ 400 iipcs/m², ngelixa iimveliso eziphezulu ≤ 100 iipcs/m², iphunyezwe ngokuchaneka kokuqengqeleka kunye neenkqubo zokuhlola kwi-intanethi.
III. Izinto eziluncedo zobuGcisa kwiFoil yeAluminiyam kwiiNkqubo zokuPakisha iiSeli zokuPakisha
3.1 Aluminiyam-Plastiki Film Lamination
Ifoyile yeAluminiyam ibonisa ukuhambelana okuqinileyo kuyo yonke into eyomileyo, thermal, kunye neenkqubo zokuthambisa ezomileyo, ukufumana amandla e-peel ≥ 15 N / 15 mm kwizicelo eziphezulu.
3.2 Ukubumba uMzobo oNzulu
Ngobude be-8-20%, Ifoyile yealuminiyam ixhasa umzobo obunzulu obuyi-5–10 mm ngaphandle kokuqhekeka. Umphezulu wayo ogudileyo (Ra ≤ 0.2 μm) kunciphisa ukukhuhlane kwaye kuphucule ukwenza ukusebenza kakuhle.
3.3 Ukutywinwa kobushushu
I-conductivity ephezulu ye-thermal iqinisekisa ukunyibilika okufanayo kwe-CPP. Amandla etywina lobushushu ≥ 35 N/15 mm (ixhomekeke ku 50 N/15 mm), ngentsebenzo ezinzileyo kwi 155 ± 5°C.
3.4 Ukusika kunye noKusetyenzwa komda
Ubulukhuni obuphakathi buvumela ukusika okungekho burr ngokutenxa komda ≤ ±0.1 mm, ilungele imigca ezenzekelayo esebenza kwi-10-15 m / min.
Iv. IiNzuzo zoMsebenzi oPhambili kunye nokuqinisekiswa kweSicelo
4.1 High Barrier Performance
≥ 20 μm ifoyile yealuminiyam ifezekisa iWVTR ≤ 0.01 g/m²·usuku kunye ne-OTR ≤ 0.005 cm³/m²·usuku.
Ityala: 30 μm ifilimu yefoyile yealuminiyam igcinwe ≥ 90% umthamo emva 1000 h kwi-85 ° C / 85% RH.
4.2 Umda woKhuseleko loomatshini
Amandla okuqina ukuya kuthi ga 230 MPa, ukumelana nokugqobhoza ≥ 300 N, kunye nokusebenza okugqwesileyo kukwehla, ucinezelo, kunye neemvavanyo zokungena inaliti.
4.3 I-Advantage eKhala
Xa kuthelekiswa nezindlu zentsimbi, Ukupakishwa kwe-aluminium-plastiki kunciphisa ubunzima nge-50-70%, ukuphucula ukuxinana kwamandla ngokufikelela 10%.
4.4 Electrolyte Corrosion Resistance
Ifoyile yealuminiyam engena-Chromium iyagcinwa > 90% Khulula amandla emva 7 iintsuku kwi-60°C ukuntywiliselwa kwe-electrolyte.
4.5 UkuSebenza kweendleko
Iindleko zefoyile yealuminiyam yasekhaya ~3–5 RMB/m², isezantsi kakhulu kuneefilim ze-aluminiyam-zeplastiki ezithengiweyo, ngokurisayikilisha ≥ 95%.
V. Ulawulo loMgangatho kunye neMigangatho yoShishino
5.1 Izalathisi zoLawulo loMgangatho oPhambili
| Isalathisi | Imfuneko | Umgangatho | Indlela yovavanyo |
|---|---|---|---|
| Ukuphambuka kobunzima | ≤ ±4% (umgangatho ophezulu ≤ ±2%) | Gb / t 3198-2020 | Igeyiji yobukhulu beLaser |
| Ukuxinana komngxuma | ≤ 400 iipcs/m² (umgangatho ophezulu ≤ 100 iipcs/m²) | Gb / t 3198-2020 | Umfanekiso webala elimnyama |
| Umgangatho womphezulu | Ra ≤ 0.2 μm | Gb / t 3615-2022 | Umlinganiselo woburhabaxa |
| Iipropathi zoomatshini | Ukuqina ≥ 70 MPa, Ubude ≥ 8% | Gb / t 228.1-2021 | Uvavanyo lwe-tensile |
| Iipropathi zomqobo | WVTR 0.01 g/m²·usuku | Gb / t 1037-2021 | Uvavanyo lokungena |
VI. Iimeko zeSicelo kunye noQinisekiso lweMarike
6.1 I-elektroniki yabathengi
- IHuawei Mate 60 UPro: 1060 ifoyile yealuminiyam, ubukhulu bebhetri 2.8 mm, ukuxinana kwamandla 280 Wh/kg
- Apple MacBook: 3003 ifoyile yealluminiyam, Uxinaniso lwamandla ≥ 300 Wh/kg
6.2 Iibhetri zamandla
- Ibhetri yeBYD Blade: 3003 ifoyile yealluminiyam, ukuxinana kwamandla 180 Wh/kg, ukhuseleko olwandisiweyo
- Ibhetri yeCATL Qilin: 8 μm ifoyile yealuminiyam ehlanganisiweyo, ukuxinana kwamandla 250 Wh/kg
6.3 Iibhetri zokuGcina amandla
- Iinkqubo zokugcina zokuhlala: 1060 ifoyile yealuminiyam, ubomi bomjikelezo ≥ 6000 Imijikelezo, 15-ubomi bonyaka
VII. Q&A (Imibuzo ebuzwa qho)
- Zahluke njani iimfuno zefoyile ngokohlobo lweeseli?
Iiseli zesingxobo zithanda ifoyile ecocekileyo; iiseli ze-blade zifuna ifoyile ye-alloy yamandla aphezulu. - Ubunzima befoyile buchaphazela njani ukusebenza?
Ifoyile etyebileyo iphucula iipropathi zomqobo kodwa inciphisa ukuxinana kwamandla; Izisombululo ezidibeneyo zilungelelanisa zombini. - Iiyantlukwano zasekhaya xa zithelekiswa nefoil ethengwa kwamanye amazwe?
Izikhewu ezingundoqo zichaneke kakhulu, ukuzinza kombhobho, kunye nokuhambelana komphezulu. - Umngcipheko wokuvezwa kwe-electrolyte ixesha elide?
Ukunciphisa i-chromium-free passivation kunye ne-nano-coatings. - Indlela yokuqinisekisa ukuhambelana komgca wemveliso?
Qinisekisa i-lamination, ukutywinwa kobushushu, kunye nokucutha ukusebenza ngolingo lokulinga. - Iimfuno ezintsha ezisuka kwiibhetri zombuso oqinileyo?
Incinci kakhulu (≤ 5 μm), umqobo ophezulu, ukuhambelana kojongano olomeleleyo, kunye nokuguquguquka kwenkqubo yevacuum.