exploring the degradation of Li ion batteries under various operating procedures

商用锂离子电池的电阻随着充电状态的变化而变化，这暗示了阴极的潜在材料特性会随着电池在循环过程中的状态而变化。在此基础上，将开发新的充电协议，旨在减少材料在循环过程中所经历的压力，并在电池退化有限的情况下开启快速充电的可能性。通过各种x射线成像和光谱学技术，将比较各种充电制度对材料降解的影响。

The resistance of a commercial Li ion cell varies with state of charge, hinting at the underlying material properties of the cathode that change based on the state of the battery during its cycling. Based on this, new charging protocols will be developed aiming at reducing the stress the materials experience in their cycling and opening up the possibility of fast charging with limited degradation of the batteries. Through a variety of x-ray imaging and spectroscopy techniques, the effect on the material degradation will be compared across the various charging regimes.