EV Battery Pack Testing & Development Services
EV battery packs are essential components of electric vehicles. To ensure proper performance and safety, manufacturers must understand the thermophysical properties of battery components. Analysis techniques such as TGA, DSC, TMA, DMA, and thermal conductivity measurement can provide insight into the thermal stability of batteries and guide manufacturers to make the best decisions.
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Precision-driven testing for dimensional accuracy and compliance
- Overview
- Scope, Applications, and Benefits
- Test Process
- Specifications
- Instrumentation
- Results and Deliverables
Overview
EV battery pack development testing encompasses the evaluation of electrochemical performance, thermal management, mechanical integrity, safety behaviour, and lifecycle characteristics of electric vehicle battery packs and their component subsystems. Testing spans from cell-level characterisation to full pack-level validation under real-world drive cycle and abuse conditions.
This service supports OEMs, Tier 1 suppliers, and battery manufacturers in accelerating safe, performance-validated battery pack development, meeting regulatory requirements, and reducing time-to-market for next-generation electric vehicles.
Scope, Applications, and Benefits
Scope
EV battery pack development testing is essential to validate the performance, safety, durability, and reliability of battery systems used in electric vehicles. It helps manufacturers assess how cells, modules, and complete packs behave under normal operating conditions as well as extreme mechanical, thermal, and electrical stresses.
Key evaluation areas include:
- Electrochemical performance: Testing cell and module capacity, efficiency, charge–discharge behaviour, and energy retention.
- Thermal safety: Assessing thermal runaway propagation, heat dissipation, and thermal management system effectiveness.
- Mechanical integrity: Evaluating pack resistance to vibration, shock, crush, and impact loads encountered during vehicle use.
- Electrical safety: Verifying protection against overcharge, over-discharge, and short-circuit conditions.
- Durability and lifespan: Measuring cycle life and calendar ageing under defined usage and environmental profiles.
Applications
- BEV, PHEV, and HEV battery pack qualification
- Battery management system (BMS) validation
- Thermal management system (TMS) performance evaluation
- Second-life battery assessment and repurposing
Benefits
- Accelerates development cycles with early-stage failure detection
- Validates safety behaviour before vehicle integration
- Supports regulatory certification (UN ECE R100, GB/T 31467)
- Reduces risk of field failures and recalls
- Provides data-driven insights for pack design optimisation
Test Process
Cell & Module Testing
Capacity, impedance, rate capability, and self-discharge are measured.
1Pack Performance
Charge/discharge cycling is performed to evaluate energy, power, and efficiency.
2Thermal & Abuse Testing
Thermal behaviour and safety under abuse conditions are assessed.
3Life & Aging
Aging tests are conducted to evaluate degradation and performance fade.
4Technical Specifications
| Parameter | Details |
|---|---|
| Pack Voltage Range | Up to 1000 V DC |
| Pack Capacity Range | Up to 200 kWh |
| Temperature Range | -40 °C to +85 °C |
| Test Modes | Capacity, rate, EIS, abuse, vibration, cycling |
| Safety Classification | UL 9540A, IEC 62133 |
Instrumentation Used for Testing
- High-accuracy battery cyclers (Arbin, Maccor, BioLogic)
- Electrochemical impedance spectroscopy (EIS) equipment
- Thermal chambers and calorimeters
- High-speed data acquisition for abuse tests
- Vibration and mechanical test systems
Results and Deliverables
- Cell and pack performance characterization data
- Capacity, energy density, and efficiency metrics
- Thermal map and TMS performance data
- Abuse test records (video, temperature, electrical data)
- Aging curves and degradation mechanism reports
- Full development test report
Frequently Asked Questions
Cell testing characterizes the fundamental electrochemical unit. Module testing evaluates groups of cells in their electrical and mechanical configuration. Pack testing assesses the complete battery system including BMS, cooling, and housing under vehicle-representative conditions.
Key international standards include UN ECE R100 (EU vehicle approval), UN 38.3 (transport safety), GB/T 31467 (China), ISO 12405-4, IEC 62660, and SAE J2464 for abuse testing. Requirements vary by market and application.
Thermal runaway is a self-propagating exothermic reaction within a cell triggered by overcharge, internal short circuit, or external heating. It is tested by controlled heating, nail penetration, or overcharge methods, evaluating whether the pack contains the event without fire propagation.
Second-life batteries require additional state-of-health (SoH) assessment prior to repurposing. Adapted protocols evaluate residual capacity, impedance growth, and safety margins to qualify batteries for stationary storage or lower-demand applications.
Timeline depends on the scope. Basic cell characterization and pack performance testing can be completed in 2–4 weeks. Full qualification programs including cycle life and abuse testing typically span 3–6 months.
Why Choose Infinita Lab for Advanced Materials Testing and Characterization?
At the core of this breadth is our network of 2,000+ accredited laboratories across the USA, offering access to over 10,000 testing methods and analytical services. From advanced materials characterization (SEM, TEM, RBS, XPS) to mechanical, chemical, environmental, biological, and standardized ASTM/ISO-compliant testing, we deliver unmatched flexibility, specialization, and scale. You are never limited by geography, facility, or methodology — Infinita Lab connects you to the right expertise and testing solution, every time.
Looking for a Trusted Partner for Accurate and Reliable Testing Services?
Send query us at hello@infinitlab.com or call us at (888) 878-3090 to learn more about our services and how we can support you.
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