Scalable fabrication of printed Zn//MnO₂ planar micro-batteries with high volumetric energy density and exceptional safety.

ABSTRACT: The rapid development of printed and microscale electronics imminently requires compatible micro-batteries (MBs) with high performance, applicable scalability, and exceptional safety, but faces great challenges from the ever-reported stacked geometry. Herein the first printed planar prototype of aqueous-based, high-safety Zn//MnO₂ MBs, with outstanding performance, aesthetic diversity, flexibility and modularization, is demonstrated, based on interdigital patterns of Zn ink as anode and MnO₂ ink as cathode, with high-conducting graphene ink as a metal-free current collector, fabricated by an industrially scalable screen-printing technique. The planar separator-free Zn//MnO₂ MBs, tested in neutral aqueous electrolyte, deliver a high volumetric capacity of 19

SUBMITTER: Wang X 

PROVIDER: S-EPMC8288951 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature