Folie de aluminiu pentru ambalarea bateriilor
Aluminum foil alloy, ca folie metalica cu o conductivitate buna si rezistenta excelenta la coroziune, are o gamă largă de aplicații pe piață. Nu poate fi folosit doar ca material de ambalare în viața de zi cu zi, dar si in baterii. Printre numeroasele tipuri de aliaje de aluminiu, 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, rezistență la coroziune, mechanical strength and flexibility.
The following are several aluminum alloy types suitable for battery foil and their characteristics
1050 folie baterie (99.5% aluminiu pur)
Compoziţie: 1050 alloy contains 99.5% aluminiu, and very small amounts of alloying elements such as silicon (Si) și fierul de călcat (Fe).
Folie de aluminiu 1050 alloy has excellent electrical conductivity (despre 61% IACS), 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.
Aliaj 1060 battery Foil
Compoziţie: 1060 aliajul este 99.6% aluminum and is a slightly purer version of 1050 aliaj.
Conductivitatea 1060 alloy is similar to 1050 (despre 60% IACS), 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.
Aliaj 1070 battery Foil (99.7% Aluminiu pur)
Compoziţie: 1070 aliajul este 99.7% aluminiu, making it purer than 1050 și 1060.
With a conductivity of about 62% IACS, 1070 is one of the most conductive aluminum alloys. Corrosion Resistance and Flexibility Similar to 1050 și 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.
Aliaj 1235 battery Foil (99.35% Aluminiu pur)
Compoziţie: 1235 aliaj contains 99.35% aluminiu.
While slightly less conductive than 1050, 1060, și 1070 aliaje, 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.
Aliaj 3003 battery Foil (Aluminum Manganese Alloy)
Compoziţie: Aliaj 3003 consists of aluminum and about 1.2% mangan (Mn), which gives it increased strength compared to pure aluminum alloys.
Deşi 3003 aluminum foil has lower conductivity than pure aluminum grades (despre 40-45% IACS), 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.
Rezistență la coroziune: Similar corrosion resistance to pure aluminum grades, suitable for long-term use in batteries.