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    Scientists Develop Biodegradable Printed Paper Batteries

    December 16, 2021, Categories  Chemistry/Nanotechnology

    Fabrication and characterizations of hydrogel cellulose paper (HCP). a) Schematic of original CP and HCP. b) Optical image of HCP (top) and original CP (bottom) with printed circuit patterns. c) One piece of HCP under mechanical deformation. SEM images of d) CP and e) HCP. f) Stress–strain curves of HCP and CP. g) The biodegradability tests of CP (left) and HCP (right) under moist soil. Yellow dash circles show outline of the samples. h) Photograph of a dry HCP (left) and a swollen HCP (right) with printed patterns. Blue dash squares with the same size of 30 mm × 30 mm show the boundaries of HCP. i) Galvanostatic plating/stripping curves of zinc symmetrical cells at a current density of 5 mA cm−2 and a cut-off capacity of 1 mAh cm−2. Credit: DOI: 10.1002/advs.202103894

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