Lithium Dry Cell Battery Aluminum Shell
Products Description
The lithium dry cell battery Aluminum shell mainly consists of the shell, top cover, and related assembly areas, suitable for dry cell systems, energy storage cells, and high-rate applications. Compared to steel casings, aluminum alloys are lighter, have better thermal conductivity, and are more adaptable to processing, making them the mainstream choice for high-end lithium battery packaging.
Our products, through optimized material selection, precision stretching and forming, and multi-stage process control, give the casing:
High structural strength
Excellent resistance to bulging
Good sealing compatibility
Stable dimensional tolerance control
Excellent surface cleanliness
Compatibility with automated production lines
This results in higher assembly efficiency and lower defect rates in large-scale PACK production.
Main Functions
Structural Boundary Function
Provides a rigid constraint cavity for the internal lithium metal anode, separator, and cathode materials, resisting external mechanical impacts and stacking pressures, preventing misalignment or collapse of the electrode layers during transportation and use.
Electrochemical Isolation Function
Achieves electrical isolation between the Battery Aluminum Housing and the internal electrodes and external circuits through a micro-arc oxide film layer or additional insulation treatment, preventing parasitic short circuits and the formation of self-discharge channels.
Thermal Management Function
Serves as the heat exchange interface between the battery and the external environment, rapidly dissipating Joule heat during high-current pulse discharges, and mitigating electrolyte viscosity increases through the uniform temperature effect of the casing wall in low-temperature environments, maintaining ionic conductivity.
Safety Pressure Relief Function
The bottom of the Aluminum shell for prismatic lithium ion battery can be designed with a precision-thinned area or a grooved structure to directionally open a pressure relief channel when internal pressure abnormally rises, preventing uncontrolled explosions and meeting transportation and safety regulations such as UN38.3 and IEC 60086.
Material Advantages: Why Choose an Aluminum Alloy Shell?
Thermal Conductivity
Aluminum has a much higher thermal conductivity than plastics or composite materials. In modular packs, the prismatic cell's aluminum shell rapidly transfers internal heat to the external cooling system, effectively suppressing temperature rise.
Mechanical Strength
Aluminum alloys possess extremely high specific strength, resisting compression during handling and installation, and providing robust physical support for the internal core.
Corrosion Resistance
Anodizing or special coating treatments ensure that the surface maintains its appearance and structural integrity even in humid coastal or slightly acidic/alkaline industrial environments.
Differentiation Capabilities | From Shell Supplier to Engineering Collaborator
| Customized Design and In-House Mold Development | From the lithium cell battery Aluminum shell's length-to-width ratio and wall thickness distribution to the terminal type, injection port location and size, and explosion-proof valve pressure threshold, everything can be flexibly adjusted according to customer needs. All supporting molds are independently developed and processed, ensuring that customized solutions and mass production efficiency are achieved simultaneously. |
| Full-Size Adaptability | Covering mainstream shell sizes for various square cells, from precision small-capacity to high-energy large-capacity. |
| Targeted Optimization of Process Window | For the pressure expansion characteristics of different cell chemical systems and the temperature environment of different application scenarios, we provide targeted adjustments to material grades and wall thickness designs, rather than simply applying generic structures. |
| Deep Collaboration in the Supply Chain | li cell Aluminum shell dimensional tolerance control is based on the stability of the sealing process, and terminal matching is designed with the convenience of mold assembly in mind, integrating shell manufacturing into the customer's entire assembly chain. |
contact us
If you are looking for a supplier of lithium cell batteries Aluminum shell with drawing conversion capabilities, consistent batch delivery capabilities, and experience in supporting new energy projects, please submit your requirements. We will respond quickly to your project implementation with an engineering solution.
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