EV BATTERY TESTING

The increasing focus on electrification is driving new demands across the battery industry, especially in testing accuracy, repeatability, and adaptability. STEP Lab provides versatile testing solutions for EV batteries that support a wide range of requirements. Our systems are designed to integrate easily into different lab environments and can be configured for a variety of applications, including long-cycle fatigue (LCF).

With our engineering know-how and responsive service network, we help testing teams improve reliability, reduce complexity, and scale their processes with confidence.

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MECHANICAL TESTING OF EV BATTERIES

Ensuring the safety and reliability of modern battery systems requires testing at all levels, from individual materials to complete packs. Mechanical and multifunctional evaluations reveal how components respond to real-world stress and are vital to achieving consistent performance. Key testing areas include:

Raw materials and components

Tensile testing of foils and adhesion checks of electrode coatings to ensure quality.

Cells

Combined mechanical, thermal, and electrical tests to simulate various operating conditions (compression during charge/discharge cycles).

Modules and packs

Structural assessments of brackets, bonded joints, and weld seams using quasi-static tensile or shear tests.

Battery abuse testing

Safety-critical tests such as nail penetration, crush scenarios, and thermal cycling to expose vulnerabilities and improve system resilience.

EV BATTERIES: TEST METHODS

Vibration testing of lithium-ion batteries is a critical process in electric vehicle (EV) battery validation. These tests are conducted according to international standards such as ISO 12405, SAE J2380, UN 38.3, UN R100, and UN R136, or based on custom specifications from battery manufacturers and OEMs.

During the test, the battery cell, module, or pack (either standalone or installed in a vehicle chassis) is mounted on a vibration table placed inside an environmental test chamber. The system integrates battery cycling equipment and real-time monitoring tools to track performance during the test. Vibration is applied sequentially in three spatial axes: vertical (Z), transverse (Y), and longitudinal (X). Simultaneously, temperature profiles are applied to simulate real-world environmental conditions. The battery is monitored continuously for structural failures, electrical disconnections, and performance degradation.

Why vibration testing matters?

Vibration test results are essential for:

Validating battery durability under mechanical stress;
Evaluating performance and reliability in harsh environments;
Characterizing vibration transmissibility across the battery system;
Supporting end-of-line quality control to ensure compliance with strict manufacturing standards.

Used by EV battery manufacturers, OEMs, and testing laboratories, these vibration tests help ensure the safety, longevity, and performance of lithium-ion batteries in electric vehicles.

STEP Lab testing solutions

At STEP Lab, we design cutting-edge test systems engineered to test single cells, modules, or full battery packs under controlled mechanical and environmental stress. With seamless synchronization between vibration, temperature control, and battery cycling, we enable complex test sequences with minimal setup time. From R&D to end-of-line validation, STEP Lab testing machines support fast data acquisition, customizable software, and full compliance with automotive testing standards.