Figure 13.

Tailoring test and demonstration of solid-state yarn ZIBs. (a) Optical image of the as-prepared 1.1 m long yarn ZIB. (b) Long yarn ZIB under bending condition. (c) Long yarn battery was cut into four parts, and each part can power the digital watch. (d) SEM images of the CNT@Zn yarn (top) and SEM images of the CNT@ MnO₂ yarn (bottom). (e) SEM image of the freestanding PAM. (f) Eight segmented yarn batteries were connected in series to power a 100 cm² electroluminescent panel (size 10.0 × 10.0 cm) under different bending conditions and a 1 m long electroluminescent panel (size 1.0 × 100 cm). Reproduced with permission from [162]. Copyright 2018 the American Chemical Society.