Melemo ea Tekheniki ea Lisebelisoa tsa Foil ea Aluminium Ka har'a Battery Cell Packaging
E tsamaisoa ke keketseho e potlakileng ea indasteri e ncha ea matla, tlhoko ea libeteri tsa lithium e ntse e eketseha. Pakete ea lisele tsa betri e bapala karolo ea bohlokoa mabapi le ho tseba nako ea bophelo ba betri, matla a matla, le ts'ebetso ea polokeho. Ka lebaka la 'mele oa eona o ikhethang, lik'hemik'hale, le litšoaneleho tsa ho lumellana ha ts'ebetso, aluminium foil e fetohile thepa ea mantlha ea ho paka. E itšetlehile ka litekanyetso, data, le linyeoe tsa kopo, sengoloa sena se hlalosa ka mokhoa o hlophisehileng thepa le melemo ea ts'ebetso ea foil ea aluminium, ho fana ka boleng ba litšupiso bakeng sa litsebi tsa indasteri le bareki.
I. Litlhoko tsa Indasteri le Litlhoko tsa Lintho bakeng sa Packaging ea Battery Cell
1.1 Mesebetsi ea mantlha ea Liphutheloana tsa Lisele le Mekhoa ea ntlafatso ea indasteri
Mesebetsi ea mantlha ea ho paka liseleng tsa betri e kenyelletsa:
- Tšireletso ea ’mele: tšusumetso e hanyetsanang, ho phunya, le deformation ho sireletsa likarolo tsa ka hare
- Tšitiso ea tikoloho: ho thibela ho kenella ha mongobo le oksijene ho qoba ho senyeha ha ts'ebetso
- Ho tiisa le ho kenya letsoho: ho arola lipotoloho tsa motlakase le ho thibela lipotoloho tse khutšoane kapa ho lutla ha electrolyte
Tsoelo-pele ea betri ea lithium e ntse e tsoela pele ho lebisa ho matla a phahameng a matla, polokeho e ntlafetseng, bophelo ba potoloho e telele, le moralo o bobebe. Lisebelisoa tsa elektronike tsa bareki li totobatsa libopeho tse tšesaane haholo le tse sa tloaelehang, libeteri tsa motlakase li etelletsa pele khaello ea ts'ireletso, le libeteri tsa polokelo ea matla li lebisa tlhokomelo ho botsitso ba nako e telele le ho sebetsa hantle ha litšenyehelo. Lisebelisoa tsa setso li sokola ho fihlela litlhoko tsena tse fapaneng.
Aluminium foil le lifilimi tsa aluminium-plastiki, ka lebaka la sebopeho sa tsona se bobebe, ts'ebetso e phahameng ea mokoallo, le ho sebetsa habonolo, li fetohile lisebelisoa tse ratoang haholo bakeng sa mokotla le libeteri tsa blade, ka ho tsoela pele ho eketseha ha 'maraka ho kenella.
1.2 Litlhoko tsa Ts'ebetso ea Motheo bakeng sa Lisebelisoa tsa Packaging tsa Cell
Litlhoko tsa bohlokoa tsa ts'ebetso ea lisebelisoa tsa ho paka li kenyelletsa:
- Ts'ebetso e phahameng ea morrier:
- Sekhahla sa phepelo ea metsi (Wvtr) ≤ 0.01 g / m ©bele
- Sekhahla sa phepelo ea oksijene (ORT) ≤ 0.005 cm³ / m ea kajeno
- Thepa ea Mechani: matla a phahameng a mabotho, emplation, le ho hanyetsa ho hanyetsa
- Ts'ebetso e tsitsitseng ea ho tiisa mocheso: matla a tiiso ea mocheso ≥ 35 N/15 limilimithara
- Electrolyte corrosion resistance
- E bobebe ebile e sebetsa hantle ka litšenyehelo
- Ho latela melao ea tikoloho joalo ka RoHS
1.3 Papiso ea Lisebelisoa tsa Mainstream Cell Packaging
Lisebelisoa tsa hona joale tsa ho kenya lisele li kenyelletsa matlo a tšepe, lifilimi tsa aluminium-plastiki, le lifilimi tsa polasetiki. Papiso e bontšoa ho Tafole 1.
| Mofuta oa thepa | Sebopeho sa Konokono | Ts'ebetso ea Monyatsi | Ts'ebetso ea Mechanini | Boemo bo bobebe | Ho sebetsa ka bonolo | Ho hanyetsa Electrolyte | Litšenyehelo | Litšitiso tse tloaelehileng |
|---|---|---|---|---|---|---|---|---|
| Aluminium motsoako oa matlo | Motsoako oa aluminium | E kgabane | E kgabane (tshusumetso, khatello) | Metsi a mahareng (tekano 2.7 g/cm³) | Mafutsana | Metsi a mahareng (e hloka ho roala) | Bohareng | Prismatic, lisele tsa cylindrical |
| Ntlo ea tšepe e sa hloekang | Ts'epe e sa beng le mabali | E kgabane | E kgabane (matla a phahameng) | Mafutsana (tekano 7.9 g/cm³) | Mafutsana | E kgabane | Phahameng | Matla a phahameng le libeteri tse khethehileng |
| Filimi ea aluminium-plastiki | Aluminium foil + nylon + Cpp | E kgabane (haufi le tšepe) | E ntle (Ho Ts'oaea Haholo, emplation) | E kgabane (50% e bobebe hofeta dikhese tsa tshepe) | E kgabane | E kgabane | Metsi a mahareng (ho fokotseha ka ho etsa sebaka) | Libetri tsa pouch le blade |
| Filimi ea polasetiki | PET, Cpp | Mafutsana | E itekanetseng | E kgabane | E kgabane | E itekanetseng | Tlase | Lisele tse tlase tsa bareki |
Qeto ea bohlokoa:
Filimi ea aluminium-plastiki, e nang le foil ea aluminium joalo ka mokoallo oa mokoallo, e fana ka ts'ebetso e leka-lekaneng ea matšoao a bohlokoa a ts'ebetso, ho etsa hore e be e loketseng haholo bakeng sa pouch le libeteri tsa lehare. Ts'ebetso ea foil ea aluminium e khetholla ka kotloloho boleng ba sephutheloana mme e tlameha ho ba eona ntho e ka sehloohong khethong ea thepa.
II. Litšobotsi tsa Konokono tsa Foil ea Aluminium bakeng sa Packaging ea Battery Cell
Aluminium foil e sebelisetsoang ho paka liseleng e kenyelletsa foil ea aluminium e hloekileng haholo (1050, 1060 letoto) le aluminium alloy foil (3003 letoto). Ka mekhoa e khethehileng ea ho roala le ho phekola holim'a metsi, lisebelisoa tsena li fana ka ts'ehetso ea bohlokoa bakeng sa ts'ebetso ea ho kenya lisele.
2.1 Lintho tsa Motheo tsa Foil ea Aluminium
2.1.1 LITLHAKISO TSA 'Mele
- E bobebe: tekano 2.7 g/cm³ (karolo ya boraro ya tshepe e senang tshepe), ho ntlafatsa matla a matla
- Holpigigity e phahameng: elongation 8–20%, e phuthoa ho ≤ 5 μm, E loketse setšoantšo se tebileng
- Molemo o motle oa mocheso oa mocheso: 237 W /(M · h), ho matlafatsa botsitso ba mocheso
2.1.2 Lintho tsa Lik'hemik'hale
- Ka tlhaho e etsa lera le teteaneng la 2–5 nm Al₂O₃ oxide mocheso oa kamore, e fana ka intrinsic oxidation le corrosion resistance
- Zirconium e se nang chromium kapa titanium passivation e eketsa botsitso ba oxide le ho hanyetsa electrolyte.
2.1.3 Thepa ea Mechini
Ts'ebetso ea mochini e ka laoloa ka nepo ka mekhoa ea alloying le rolling.
| Molotho oa sehlopha | Lintho tse ka Sehloohong tsa Alloying | Matla a tšepe (MPa) | Emplation (%) | Melemo ea Bohlokoa | Litšitiso tse tloaelehileng |
|---|---|---|---|---|---|
| 1050 | Al ≥ 99.5% | 70-130 | 5-20 | Dumality e ntle haholo, khanyetso ea kutu | Lisele tse tloaelehileng tsa bareki |
| 1060 | Al ≥ 99.6% | 70-180 | 8-20 | Bohloeki bo phahameng, tshebetso e babatsehang | Lisele tsa maemo a holimo tsa bareki le mekotla |
| 3003 | Mt 1.0–1.5% | 110-230 | 12-20 | Matla a phahameng, tsitsitse ho theha | Libetri tsa ho boloka matla le matla |
2.2 Litlhoko tse Khethehileng tsa Ts'ebetso ea ho Paka Lesela la Aluminium
2.2.1 Ultra-Thin Rolling
Botenya bo tloaelehileng bo tloha ho 20-40 μm, ha lihlahisoa tse phahameng li fihla ≤ 5 μm. Ho kheloha ha botenya ho laoloa ka hare ho ± 4% (boemo bo phahameng ≤ ±2%).
Mohlala: Chalco's 0.005 mm aluminium foil bakeng sa filimi ea aluminium-plastiki e tšehetsa libeteri tsa boemo bo tiileng tse nang le matla a matla > 500 Wh / kg.
2.2.2 Phekolo ea holimo
E kenyelletsa ho hloekisa holim'a metsi, passivation e se nang chromium, le li-nano-coatings (Al₂o₃, SiO₂), ho ntlafatsa ho hanyetsa kutu le ho lumellana ha sekhomaretsi ha ho ntse ho eketsa ts'ebetso ea mokoallo ka ho feta 10 ×.
2.2.3 Taolo ea pinhole
Ho latela GB / t 3198-2020, premium aluminium foil e hloka pinhole density ≤ 400 PCS / m², ha lihlahisoa tsa maemo a holimo ≤ 100 PCS / m², e fihlelletsoeng ka mokhoa o nepahetseng oa ho roala le ho hlahloba marang-rang.
III. Melemo ea Tekheniki ea Foil ea Aluminium Mekhoeng ea Tlhahiso ea Phatlalatso ea Lisele
3.1 Aluminium-Plastiki Film Lamination
Aluminium foil e bonts'a tšebelisano e matla ho pholletsa le omileng, mocheso, le mekhoa ea ho lamination e ommeng, ho fumana matla a peel ≥ 15 N/15 mm lits'ebetsong tsa maemo a holimo.
3.2 Ho Etsa Metapo e Tebileng
Ka bolelele ba 8-20%, aluminium foil e tšehetsa setšoantšo se tebileng sa 5-10 mm ntle le ho phunyeha. Sebaka sa eona se boreleli (RA ≤ 0.2 μm) e fokotsa ho ferekana le ho ntlafatsa ts'ebetso ea ho bopa.
3.3 Mocheso oa mocheso
Mocheso o phahameng oa mocheso o tiisa ho qhibiliha ha CPP ho tšoanang. Matla a tiiso ea mocheso ≥ 35 N/15 limilimithara (ho fihlela 50 N/15 limilimithara), ka tshebetso e tsitsitseng ho 155 ± 5°C.
3.4 Ho itšeha le ho sebetsa ka thata
Ho thatafala ho itekanetseng ho nolofalletsa ho itšeha ntle le burr ka ho kheloha ha mahlakore ≤ ± 0.1 mm, e loketseng mela e ikemetseng e sebetsang ho 10-15 m / min.
IV. Melemo ea Ts'ebetso ea Motheo le netefatso ea Kopo
4.1 Tšebetso e Phahameng ea Barrier
≥ 20 μm aluminium foil e fihlella WVTR ≤ 0.01 g/m²·letsatsi le OTR ≤ 0.005 cm³ / m ea kajeno.
Nyeoe: 30 μm aluminium foil filimi e bolokiloe ≥ 90% bokgoni ka mora 1000 h ho 85°C/85% RH.
4.2 Mechanical Safety Margin
Matla a Tensist ho fihlela 230 MPa, ho hanyetsa ho phunya ≥ 300 N, le tshebetso e babatsehang ka ho theoha, khatello, le liteko tsa ho kenella ka nale.
4.3 MOLEMO OA LEFAT
Ha ho bapisoa le matlo a tšepe, sephutheloana sa aluminium-plastiki se fokotsa boima ba 'mele ka 50-70%, ho ntlafatsa matla a matla ka ho fihlela ho 10%.
4.4 Electrolyte Corrosion Resistance
Foil ea aluminium e se nang Chromium e bolokiloe > 90% ebola matla ka mora 7 matsatsi a 60 ° C ho qoelisoa ka electrolyte.
4.5 Tšebeliso ea Litšenyehelo
Theko ea lehae ea foil ea aluminium ~ 3–5 RMB/m², e tlase haholo ho feta lifilimi tsa aluminium-plastiki tse tsoang kantle ho naha, ka recyclability ≥ 95%.
V. Taolo ea Boleng le Maemo a Indasteri
5.1 Lipontšo tsa Taolo ea Boleng ba Boleng
| Sesupo | TLHOKOMELISO | Tloaelo | Mokhoa oa liteko |
|---|---|---|---|
| Ho kheloha botenya | ≤ ±4% (boemo bo phahameng ≤ ±2%) | GB / t 3198-2020 | Laser botenya gauge |
| Pinhole density | ≤ 400 PCS / m² (boemo bo phahameng ≤ 100 PCS / m²) | GB / t 3198-2020 | Litšoantšo tsa lebala le lefifi |
| Boleng ba bokapele | RA ≤ 0.2 μm | GB / t 3615-2022 | Tekanyo ya boqhobane |
| Thepa ea Mechani | Tensile ≥ 70 MPa, elongation ≥ 8% | GB / t 228.1-2021 | Teko ea tensile |
| Thepa ea barrier | Wvtr 0.01 g / m ©bele | GB / t 1037-2021 | Teko ea permeability |
VI. Linyeoe tsa Kopo le netefatso ea Maraka
6.1 Barekisi ba elektroniki
- Huawei Mate 60 Pro: 1060 aluminium foil, botenya ba betri 2.8 mm, matla a matla 280 Wh / kg
- Apple MacBook: 3003 aluminium alloy foil, matla a matla ≥ 300 Wh / kg
6.2 Libetri tsa Matla
- Betri ea BYD Blade: 3003 aluminium alloy foil, matla a matla 180 Wh / kg, polokeho e ntlafetseng
- CATL Qilin Betri: 8 μm foil e entsoeng ka aluminium e kopantsoeng, matla a matla 250 Wh / kg
6.3 Libetri tsa polokelo ea matla
- Mekhoa ea polokelo ea bolulo: 1060 aluminium foil, bophelo ba potoloho ≥ 6000 Lipotoloho, 15-lilemo tsa bophelo
VII. Q&A (LIPOTSO TSE BOTSOANG HANGATA)
- Litlhoko tsa foil li fapana joang ho ea ka mofuta oa sele?
Lisele tsa mokotla li rata foil e hloekileng haholo; lisele tsa lehare li hloka matla a holimo a alloy foil. - Botenya ba foil bo ama ts'ebetso joang?
Foil e teteaneng e ntlafatsa thepa ea litšitiso empa e fokotsa matla a matla; litharollo tse kopantsoeng li leka-lekane ka bobeli. - Liphapang tsa ka tlung vs tse tsoang kantle ho naha?
Likheo tsa bohlokoa li teng ka mokhoa o nepahetseng haholo, botsitso ba pinhole, le botsitso ba bokahodimo. - Likotsi tsa nako e telele tsa ho pepesehela electrolyte?
E fokotsoa ke passivation e se nang chromium le li-nano-coatings. - Mokhoa oa ho netefatsa tšebelisano ea mohala oa tlhahiso?
Netefatsa lamination, ho tiisa mocheso, le ho fokotsa ts'ebetso ka liteko tsa sefofane. - Litlhoko tse ncha ho tsoa ho libeteri tsa boemo bo tiileng?
E tšesaane haholo (≤ 5 μm), mokoallo o phahameng, matla a segokanyimmediamentsi sa sebolokigolo tshebeletsano, le ho ikamahanya le maemo a ts'ebetso ea vacuum.