The Characteristics and Applications of Standard VDA355 Lithium-Ion Battery Modules

Introduction  

The VDA355 lithium-ion battery module is a standardized battery solution widely adopted in the electric vehicle (EV) industry. Developed under the guidelines of the German Association of the Automotive Industry (VDA), this module has become a cornerstone in the design of battery packs for EVs, particularly in the Chinese and European markets. Its standardized dimensions and high energy density make it a preferred choice for automakers aiming to optimize space and performance in their vehicles.  

Technical Characteristics of VDA355 Modules  

1. Dimensions and Structure:

 The VDA355 module measures 355mm in length, 151mm in width, and 108mm in height. It typically consists of 4pcs or 12pcs prismatic cells, arranged in configurations such as 1*12, 2×6 or 3×4. The module is encased in aluminum end plates and side plates, ensuring mechanical strength and thermal stability.  

2. Energy Density and Performance:  

 VDA355 modules are known for their high energy density, which is crucial for extending the driving range of EVs. They also feature robust thermal management systems, often incorporating liquid cooling or phase-change materials to maintain optimal operating temperatures.  

3. Safety Features:  

 Safety is a key focus in the design of VDA355 modules. Each module includes a  Flexible Printed Circuit (FPC) that monitors voltage, temperature, and current. Additionally, modules are equipped with explosion-proof valves and protective covers to prevent thermal runaway and ensure safe operation.  

Applications of VDA355 Modules  

1. Electric Vehicles:  

 The VDA355 module is extensively used in EVs, particularly in compact and mid-sized cars. Its standardized dimensions allow for easy integration into various vehicle platforms, making it a versatile choice for automakers. Companies like CALB, Svolt, and BYD have adopted VDA355 modules in their battery packs.  

2. Energy Storage Systems:  

Beyond EVs, VDA355 modules are also employed in energy storage systems (ESS) for renewable energy integration and grid stabilization. Their high energy density and modular design make them suitable for scalable storage solutions.  

3. Other Potential Applications:

The VDA355 module is being explored for use in electric buses, commercial vehicles, and even aerospace applications, where its compact size and high performance are highly valued.  

Advantages

 – Standardization: The VDA355 module’s standardized dimensions simplify battery pack design and manufacturing.  

   – High Energy Density: Its compact design maximizes energy storage within limited space.  

   – Modularity: The ability to replace individual modules reduces maintenance costs and downtime.  

Future Trends and Developments  

The EV industry is gradually transitioning to larger modules, such as the 590mm standard, to improve space utilization and reduce costs. However, the VDA355 module remains relevant, especially in compact vehicles and hybrid applications. Innovations in thermal management and materials are expected to further enhance its performance and safety.  

Conclusion  

The VDA355 lithium-ion battery module has played a pivotal role in the evolution of electric vehicles and energy storage systems. Its standardized design, high energy density, and robust safety features make it a reliable choice for a wide range of applications. As the industry continues to innovate, the VDA355 module will likely remain a key component in the transition to a sustainable energy future.  

By understanding its characteristics and applications, stakeholders can better leverage the VDA355 module to meet the growing demands of the EV and energy storage markets.

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LYTH Battery engineering team focus on designing the standard battery modules from 2022. Besides the standard VDA355 and MEB module types in the market, LYTH designed new NMC battery modules in other configurations, but dimentions are still the same with VDA355 and MEB modules . For other custom made battery module types, LYTH can help design CAD drawing and provide professional solution according to customer’s application and request .

The following is the EV standard battery modules which LYTH supply :

For the difference between FPC and wires, you can refer to our previous article:

FPC/CCS VS Traditional Wiring Harnesses

Contact us for more details :

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Email: info@lythbattery.com