Extended Data Fig. 2: Integration process of implantable sensing systems.
From: Wireless transmission of internal hazard signals in Li-ion batteries

a, The size of the strain sensor. b, Schematic illustration of the integrated sensor processes. c,d, Pictures of the integrated temperature sensor (c) and strain sensor (d) processes. e,f, Pictures of chip–sensor–battery integrated design in prismatic (e) and cylindrical (f) batteries. The sizes of the thin-film temperature and strain sensors are 60 × 8 × 0.05 mm3 and 70 × 5 × 0.05 mm3, respectively (50 μm: thickness of the dried slurry from active materials, binders and conductive agents on the current collectors).