The group of WU Zhongshuai from DICP has used a thixotropic ink based on manganese dioxide, zinc powder and graphene as active materials, to produce the positive, negative electrodes and the current collector of Zn//MnO₂ batteries, respectively. In a multi-step screen printing process, a simple and low-cost preparation of planar Zn//MnO₂ micro-batteries was achieved. The Zn//MnO₂ batteries showed exceptional durability, with a capacity of 83.9% for 1300 cycles at current density of 5 C, good mechanical flexibility and uniform performance.

CAS news release, July 17, 2019