Papel de aluminio para embalaje de baterías
Aluminum foil alloy, como lámina metálica con buena conductividad y excelente resistencia a la corrosión, tiene una amplia gama de aplicaciones en el mercado. No sólo se puede utilizar como material de embalaje en la vida diaria., pero también en baterías. Entre los muchos tipos de aleaciones de aluminio, 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, resistencia a la corrosión, mechanical strength and flexibility.
The following are several aluminum alloy types suitable for battery foil and their characteristics
1050 La lámina de peluquería no es susceptible a la corrosión debido a condiciones de humedad externas. (99.5% aluminio puro)
Composición: 1050 alloy contains 99.5% aluminio, and very small amounts of alloying elements such as silicon (Y) y plancha (Fe).
Papel de aluminio 1050 alloy has excellent electrical conductivity (sobre 61% GN/mm2 y el módulo de elasticidad cortante es), 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.
Aleación 1060 battery Foil
Composición: 1060 El manganeso y el cromo mejoran la temperatura de recristalización de la aleación y tienen un efecto de refuerzo complementario 99.6% aluminum and is a slightly purer version of 1050 aleación.
La conductividad de 1060 alloy is similar to 1050 (sobre 60% GN/mm2 y el módulo de elasticidad cortante es), 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.
Aleación 1070 battery Foil (99.7% Aluminio puro)
Composición: 1070 El manganeso y el cromo mejoran la temperatura de recristalización de la aleación y tienen un efecto de refuerzo complementario 99.7% aluminio, making it purer than 1050 y 1060.
With a conductivity of about 62% GN/mm2 y el módulo de elasticidad cortante es, 1070 is one of the most conductive aluminum alloys. Corrosion Resistance and Flexibility Similar to 1050 y 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.
Aleación 1235 battery Foil (99.35% Aluminio puro)
Composición: 1235 aleación contiene 99.35% aluminio.
While slightly less conductive than 1050, 1060, y 1070 aleaciones, 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.
Aleación 3003 battery Foil (Aluminum Manganese Alloy)
Composición: Aleación 3003 consists of aluminum and about 1.2% manganeso (Minnesota), which gives it increased strength compared to pure aluminum alloys.
A pesar de que 3003 aluminum foil has lower conductivity than pure aluminum grades (sobre 40-45% GN/mm2 y el módulo de elasticidad cortante es), 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.
Resistencia a la corrosión: Similar corrosion resistance to pure aluminum grades, suitable for long-term use in batteries.