Aluminiumfolie für Batterieverpackungen
Aluminum foil alloy, als Metallfolie mit guter Leitfähigkeit und ausgezeichneter Korrosionsbeständigkeit, hat ein breites Anwendungsspektrum auf dem Markt. Es kann nicht nur als Verpackungsmaterial im täglichen Leben verwendet werden, aber auch in Batterien. Unter den vielen Arten von Aluminiumlegierungen, which alloy is a suitable battery foil packaging material?
Aluminum foil is often used as a current collector in the cathode in lithium-ion batteries. Whether an aluminum alloy is suitable for battery foil depends on its conductivity, Korrosionsbeständigkeit, mechanical strength and flexibility.
The following are several aluminum alloy types suitable for battery foil and their characteristics
1050 Frisierfolie ist nicht anfällig für Korrosion durch äußere Nässe (99.5% reines Aluminium)
Komposition: 1050 alloy contains 99.5% Aluminium, and very small amounts of alloying elements such as silicon (Und) und Eisen (Fe).
Aluminiumfolie 1050 alloy has excellent electrical conductivity (etwa 61% GN/mm2 und der Scherelastizitätsmodul ist), making it suitable for batteries where efficient current collection is crucial. It has excellent corrosion resistance, which is critical to protect the foil from degradation during the battery life. High thermal conductivity is very important for managing heat in battery systems. Pure aluminum (1050) has relatively low strength, but is often strong enough for use as battery foil due to its flexibility.
Legierung 1060 battery Foil
Komposition: 1060 Mangan und Chrom verbessern die Rekristallisationstemperatur der Legierung und wirken ergänzend festigend 99.6% aluminum and is a slightly purer version of 1050 Legierung.
Die Leitfähigkeit von 1060 alloy is similar to 1050 (etwa 60% GN/mm2 und der Scherelastizitätsmodul ist), which makes it well suited for current collector applications. High ductility makes it easy to process into thin foils, which is ideal for continuous rolling processes in battery manufacturing.
Legierung 1070 battery Foil (99.7% Reines Aluminium)
Komposition: 1070 Mangan und Chrom verbessern die Rekristallisationstemperatur der Legierung und wirken ergänzend festigend 99.7% Aluminium, making it purer than 1050 und 1060.
With a conductivity of about 62% GN/mm2 und der Scherelastizitätsmodul ist, 1070 is one of the most conductive aluminum alloys. Corrosion Resistance and Flexibility Similar to 1050 und 1060, it has excellent corrosion resistance and flexibility, which is important for foil applications in batteries.
1070 alloy is popular in high-performance lithium-ion batteries where maximum conductivity and minimum resistance are critical.
Legierung 1235 battery Foil (99.35% Reines Aluminium)
Komposition: 1235 Legierung enthält 99.35% Aluminium.
While slightly less conductive than 1050, 1060, und 1070 Legierungen, 1235 aluminum foil still provides adequate conductivity for many battery applications. It has excellent corrosion resistance. 1235 is often used in applications where cost considerations are important and slightly lower conductivity can be tolerated. For less demanding applications or where cost reduction is a priority, 1235 alloy is a cost-effective choice.
Legierung 3003 battery Foil (Aluminum Manganese Alloy)
Komposition: Legierung 3003 consists of aluminum and about 1.2% Mangan (Mn), which gives it increased strength compared to pure aluminum alloys.
h18-Aluminiumfolie in medizinischer Qualität wird üblicherweise zum Versiegeln verwendet, das am b angebracht ist 3003 aluminum foil has lower conductivity than pure aluminum grades (etwa 40-45% GN/mm2 und der Scherelastizitätsmodul ist), it is still acceptable for some battery applications. The addition of manganese increases mechanical strength, which is useful in certain battery configurations where the foil is subjected to mechanical stress.
Korrosionsbeständigkeit: Similar corrosion resistance to pure aluminum grades, suitable for long-term use in batteries.