Ev Car Battery Shell
Products Description
The EV car battery shell uses high-strength aluminum alloys (such as 6061-T6, 3003, and 5052 series) as the main material, manufactured through processes such as stamping, stretching, welding, CNC precision machining, and surface anti-corrosion treatment.
This product is widely used in new energy vehicle power battery packs, energy storage systems, power tool battery packs, and hybrid power battery modules.
Its design balances structural strength and lightweighting, effectively improving overall vehicle energy efficiency, extending driving range, and maintaining excellent protective performance and environmental adaptability during long-term operation.
Product Advantages: A Path to System-Level Lightweighting
| Integrated Thermal-Structural Design Saves Energy | Traditional designs require separate heat-conducting supports and structural beams. Our Aluminum shell for lithium polymer battery cell integrates reinforcing ribs in the flange area through topology optimization. These ribs serve as both structural reinforcements and heat diffusion paths. Calculations show that compared to a separate design, the overall system weight is reduced by 8-12%, and the module's first-order natural frequency is increased by 20%, avoiding the road excitation frequency band. This is particularly important for your CTC design, as the Aluminum shell for lithium ion prismatic cell itself becomes an integral part of the chassis load-bearing structure. |
| Balance Between Material Utilization and Recyclability | Utilizing 6014-T4P aluminum alloy, its key characteristic lies in its reversible yielding effect-after experiencing 5% plastic deformation due to cell expansion during the PACK's lifespan, the alloy element burn-off rate during recycling and remelting is only 5%, while the traditional 6061 alloy, due to coarsening of precipitates, has a burn-off rate of 15%. This means that the battery pack recycling value (EOL Value) you promise to OEMs is more achievable, meeting the quantitative requirements for recycling rates under the new EU Battery Regulation. |
| Process robustness reduces system variability | Aluminum casing height tolerance is controlled within ±0.15mm, but through post-weld straightening processes, flange flatness can be achieved within 0.1mm. This process robustness eliminates the need for focal length adjustments for each casing on your laser welding line, improving equipment OEE by 15% and increasing panel welding yield from 95% to 99.5%. At a production scale of millions per year, this equates to reducing rework by 4,000 times annually, directly lowering manufacturing costs. |
Design Advantages: Structural Thinking Born for "System Integration"
Topology-Optimized Force Transfer Path Design
Utilizing advanced computer topology optimization technology, we design the most efficient force flow transmission path for the aluminum casing, much like the growth of a skeleton. Material is precisely distributed in areas of stress concentration, while material is reduced in low-stress areas. The result is a lighter, more rigid, and more impact-resistant non-uniformly distributed smart structure.
Integrated Thermal Management Flow Channel Design
We integrate the liquid cooling plate function with the casing sidewalls or the bottom plate. Through precision machining or brazing of complex flow channel systems on the inner wall, the coolant achieves maximum heat exchange area with the cells. This design not only improves cooling efficiency and avoids the contact thermal resistance of additional liquid cooling plates, but also further simplifies the internal assembly structure of the battery pack.
Synergy between explosion-proof pressure relief and structural rigidity
At the pre-set explosion-proof valve installation position on the top cover or side wall, we have made local reinforcement structural designs to ensure that the pressure relief function is accurately triggered without becoming a mechanical weakness of the entire prismatic lfp cells Aluminum shell structure, thus achieving a perfect balance between safety and strength.
Applications & Industry Benefits
| New Energy Passenger and Commercial Vehicles |
Widely used in Battery Electric Vehicles (BEVs), Plug-in Hybrid Electric Vehicles (PHEVs), and Fuel Cell Electric Vehicles (FCEVs). Its excellent protective performance and lightweight structure effectively improve vehicle safety and range. |
| Energy Storage and Backup Power Systems | In home energy storage, industrial energy storage, and communication base station energy storage systems, the cell lithium battery Aluminum shell battery enclosure provides reliable heat dissipation and structural support, extending the lifespan of the energy storage system. |
| Industrial and Special Equipment Power Supplies |
Suitable for forklifts, electric ships, electric agricultural machinery, and rail vehicles. In complex working environments, the high corrosion resistance and structural strength of the aluminum casing effectively ensure safe operation. |
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