Extended Data Fig. 8: Electrode fracture in cylindrical batteries.
From: Wireless transmission of internal hazard signals in Li-ion batteries

a, Picture of electrode fracture in a positive electrode. b, X-ray tomography image of the battery with electrode fracture. c,d, Evolution of internal strain in pristine battery (c) and battery with pre-set fracture (d). e, Circumferential strain contours of the battery with pre-set fracture. f, BP neural network training and testing loss in electrode fracture localization.