Aluminum Shell For Lithium Polymer Battery Cell
Products Description
Our Aluminum shell for lithium polymer battery cells is made of high-purity aluminum-manganese alloy, manufactured using a high-precision deep drawing process. Its square structure maximizes space utilization, accommodating higher energy density electrode stacks, making it the mainstream packaging form for current power batteries.
Core Functions: Protects the internal chemical environment, withstands internal pressure shocks, assists in heat conduction, and provides structural support.
Applicable to: Lithium iron phosphate (LiFePO4) cells, ternary lithium (NCM) cells, and semi-solid/solid-state batteries.
Manufacturing Advantages: The Art of Precision Drawing
Multi-station Deep Drawing Technology
Automated multi-station continuous drawing ensures a smooth transition between the bottom thickness and the uniformity of the sidewalls, effectively avoiding stress concentration.
Precision Cleaning and Degreasing
Multiple ultrasonic cleaning and acid-base neutralization processes ensure extremely low metallographic residue on the inner wall, preventing the risk of internal short circuits.
Surface Passivation Treatment
We offer customers optional oxidation or passivation surface treatments to enhance the bonding strength between the Aluminum Case for the electric bike battery pack and the battery cover during welding.
Design Advantages: Topology Optimization of Stress Flow Lines and Heat Flow Guidance
Large Round Corner with No Dead Angle Transition
Breaking through the limitations of small round corners in traditional square aluminum shells, we adopt a large arc transition design. This not only eliminates the risk of thinning the bottom corner wall thickness during deep stretching but also evenly distributes concentrated stress to the large surfaces during cell expansion, eliminating the fatal failure of "corner cracking."
Explosion-Proof Valve Micro-Zone Weakening Design
Physical explosion-proof valves are pre-installed on the sidewalls or bottom of the Aluminum Case for Electric Motor Car Lifepo4 Battery Pack through precise wall thickness reduction or groove design. When the internal pressure of the cell approaches the dangerous critical point, the explosion-proof zone preferentially cracks and releases pressure, preventing the entire shell from exploding and tearing apart, thus gaining golden time to stop the spread of heat at the module level.
Multi-Dimensional Heat Flow Guidance Channels
The large surfaces of the outer lithium prismatic cells Aluminum shell can be designed with micron-level shallow grooves or corrugations, significantly increasing the heat exchange area with the external cooling plate without reducing structural strength; at the same time, the flatness of the bottom support surface is optimized to reduce contact thermal resistance.
Application Advantages: Covering All Scenarios of New Energy Square Batteries
EV Power Battery Systems
Mainstream square aluminum-cased cells are integrated into the cell lithium battery Aluminum shell, featuring high assembly efficiency and rapid replacement of standard modules, widely used in passenger cars, heavy commercial vehicles, etc.
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Commercial and Industrial Energy Storage BESS/Base Stations/Data Centers
Made of 3003 stainless steel, it boasts durable corrosion resistance and a lifespan exceeding 12 years. The lto lithium cells Aluminum shell's low internal short-circuit and high sealing performance extend the overall battery life and reducing maintenance costs.
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Small Power Packs and Intelligent Robot Battery Swapping
The lightweight advantage of the aluminum casing is significant, facilitating handheld handling and convenient replacement and maintenance.
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Two-Wheeled Vehicles and Power Tools
Excellent heat dissipation keeps cell temperature within a reasonable range under high-rate operating conditions, extending cycle life.
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Military and Special Communication Backup Power
Unlike steel, aluminum does not corrode or rust, providing excellent safety in complex environments.
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contact us
We not only provide standardized lithium power cell Aluminum shell products but also offer integrated engineering support, from material evaluation and structural development to mold design and mass production, tailored to our customers' cell structure, PACK solutions, and new energy application needs. This helps projects achieve more stable and efficient mass production implementation.
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