Rapid and spatially resolved XRD measurements of fast charging cracked and patterned lithium-ion battery electrodes via multi-channel collim

Patterned electrodes in lithium-ion batteries show potential to combine fast charging and high energy density. Two methods for patterning electrodes are via laser machining, which can damage the electrode and adds a costly step to manufacturing, or by inducing crack formation during electrode drying. In this experiment we will use a multi-channel collimator (MCC) to do spatially resolved, operando XRD measurements to study the (de)lithiation rate and degradation in thick LiNi0.6Mn0.2Co0.2O2 (NMC622) lithium-ion battery cathodes with fast charging features patterned into the surface This will directly show for the first time how effective patterned features are at facilitating (de)lithiation of nearby material, which is vital for designing optimally patterned fast charging, energy dense lithium-ion batteries.