DNV GL Offers Testing-Based Verification Of Li-ion Battery Lifetimes


DNV GL has introduced Battery XT, which the global energy advisory and certification company says is a testing-based lifetime verification tool for lithium-ion batteries.

According to DNV GL, the independent verification tool compiles battery life cycle data and predicts battery degradation under different conditions and duty cycles, providing renewables stakeholders with an objective way to compare the value and reliability of types and brands of energy storage technology. The service incorporates the experience of 10 years of research and development in energy storage and has been developed in cooperation with industry stakeholders, DNV GL adds.

“As energy storage deployment reaches the gigawatt scale, the market is still challenged to overcome the self-certification approaches of the past,” says Davion M. Hill, DNV GL’s energy storage leader in the Americas. “No two markets have the same duty cycle, and no two batteries have the same performance. This bottlenecks project development because every project requires a unique verification of lifetime. To solve this, we calibrated legacy automotive life prediction models with a minimum dataset. Once tested, batteries can be sized to any duty cycle and developers can scale without waiting on data from suppliers.”

DNV GL says Battery XT offers independent third-party testing and verification of product warranties and performance guarantees before making a purchasing decision. Battery XT, which can also provide consulting on battery size and chemistry selection, aims to reduce risk and inform purchases and planning for energy storage asset management.

DNV GL notes it offers an interactive online demo to illustrate the way Battery XT works. Viewers can try three scenarios – fast charge electric ferry, hybrid genset and solar+frequency – by entering sample information such as system size, temperature and initial state of change, and then running a simulator to show how the factors apply.

“As the storage market continues to expand, the ability to manage risk at the point of purchase is becoming increasingly important,” says Rich Barnes, executive vice president and regional manager for DNV GL Energy in North America. “Battery XT will empower stakeholders to make better purchasing decisions based on objective, third-party testing.”

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