Accelerated testing of lithium-ion batteries

了解锂离子电池如何随着时间的推移和在不同应用中的使用而退化，对于设计更好的储能系统和加速向净零的过渡至关重要。通常，在商业化之前，新的电池设计会在实验室环境中进行测试，以研究其性能如何下降。然而，随着新设计电池寿命的提高，这些测试需要更长的时间，这意味着商业化需要推迟，或者在没有测试的情况下发布。该项目旨在开发基于现实世界条件的锂离子电池物理加速测试方案。数值模型将与实验退化测试相结合，以优化电池测试协议，并在实际应用中提供加速测试寿命与预测寿命之间的统计联系。该项目将以电动汽车为目标应用，但预计这项技术将适用于所有使用锂离子电池进行储能的应用。

Understanding how lithium-ion batteries degrade over time and with use in different applications is crucial for designing better energy storage systems and accelerating the transition to net-zero. Typically, new battery designs are tested in a laboratory environment to study how their performance degrades prior to commercialisation. However, as battery lifetimes improves with new designs, these tests take longer, meaning commercialisation needs to either be delayed or released without testing to end of life. This project seeks to develop physically informed accelerated test protocols for lithium-ion batteries based on real world conditions. Numerical models will be combined with experimental degradation testing to optimise battery test protocols and provide a statistical link between accelerated testing lifetime and predicted lifetime in real world applications. The project will use electric vehicles as a target application, but it is anticipated this technique will be applicable to all applications where lithium-ion batteries are used for energy storage.