Aluminum sheet 3003 h14 for aluminum battery case
The casing of the lithium battery is crafted using the 3003 h14 aluminum alloy sheet. This particular aluminum sheet finds extensive application in square-shaped lithium batteries. Lithium batteries are enclosed in aluminum cases primarily due to their lightweight nature and superior safety compared to steel shells. The 3003 deep-drawn aluminum sheet boasts excellent formability, making it a prime choice for deep-drawn materials. It possesses remarkable forming and processing properties, high corrosion resistance, exceptional weldability, and superb electrical conductivity.
The aluminum shell is commonly crafted from the 3003 aluminum-manganese alloy, featuring key alloy components like Mn, Cu, Mg, Si, and Fe. Each of these alloys serves a distinct purpose; for instance, Cu and Mg enhance strength and hardness, Mn improves corrosion resistance, Si boosts the heat treatment effectiveness of magnesium-containing aluminum alloys, and Fe augments high-temperature strength. The adoption of 3003 aluminum sheet for the construction of lithium battery casing alloy material underscores significant safety considerations, which are reflected in the material's thickness and bulging coefficient. The aluminum case's ability to be made thinner stems from the fact that a lithium battery of the same capacity is lighter than a steel case. Considering the lithium battery's working mechanism, during charging, lithium ions are deintercalated, causing the positive electrode to expand, while during discharge, lithium ions are embedded into the negative electrode, leading to its expansion. Both processes result in solid expansion, which can be mitigated through a suitable alloy formulation to reduce the bulging coefficient.
Given its aforementioned comparative benefits, the 3003 h14 aluminum sheet lithium battery enclosure has emerged as the predominant choice for liquid lithium batteries, spanning virtually every application domain. Its lightweight construction, safety, and subsequent performance enhancements have propelled the lithium battery aluminum casing to the forefront of enclosure designs.
