Figure 1
From: Lithium-ion Battery Thermal Safety by Early Internal Detection, Prediction and Prevention

(a) Schematic of customized RTD embedded LIB coin cell; (b) RTD embedded PLA spacer and CR2032 cell with internal RTD. Dimension of the RTD embedded spacer was comparable to ordinary CR2032 coin cell spacer, allowing for reliable sensor-electrode contact and cell sealing after assembly.