Electric Vehicle Battery Testing

Electric Vehicle Cells, Modules, Battery Packs, and Systems

GB 38031 Safety Requirements for Power Batteries for Electric Vehicles

GB/T 31467 Electrical Performance Test Methods for Lithium-ion Power Battery Packs and Systems for Electric Vehicles

ECE R100.3 Uniform Requirements for Vehicle Approval Concerning Specific Requirements for Electric Power Systems

ISO 6469 Road Electrical Vehicles-Safety Specifications

ISO 12405 Lithium-ion Power Battery Packs and Systems for Electric Vehicles

IEC 62660 Lithium-ion Batteries for Electric Road Vehicle Propulsion

High and low temperature capacity energy, rate discharge capacity, energy efficiency, pulse operation, fast charging performance, high and low temperature life cycle, calendar life, fast charging cycle, rate cycle, etc.

Mechanical vibration, mechanical shock, high and low temperature storage, temperature shock/change, damp heat cycling, IP protection rating, gas corrosion, salt spray, chemical corrosion, etc.

Nail penetration, extrusion, short circuit, external fire, seawater immersion, thermal diffusion, overcharge and over-discharge, over-temperature, simulated collision, salt spray, high altitude, etc.

CNAS, CMA

Depending on testing requirements

Electric vehicle battery testing verifies its range, environmental tolerance, and safety performance, and is a crucial step in ensuring battery reliability and lifespan. Electric vehicles experience various operating conditions during actual operation, such as uniform acceleration, rapid acceleration and deceleration, and hill climbing. The requirement for rapid charging rates necessitates that batteries can quickly replenish energy under fast and ultra-fast charging conditions. Electrical performance testing verifies the battery's throughput capacity under different operating conditions and charging modes.

Life cycle testing can simulate the actual operating conditions of batteries in real-world applications, verifying battery lifespan through rate charging and discharging, fast charging cycles, etc. Calendar life can verify the battery's performance throughout its entire lifespan, including use, idle time, charging and discharging, from the date of production. Mechanical abuse, electrical abuse, and corrosion of batteries can often cause short circuits, overheating, and even accidents such as fires, explosions, and leaks. By simulating mechanical vibrations, collisions, compression, punctures, short circuits, improper charging and discharging, and salt spray corrosion that may occur during electric vehicle operation, the overall safety performance of the battery system can be verified, from battery electrode materials and battery structural design to the monitoring and early warning functions of the battery management system.

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