Integrated solid/nanoporous copper/oxide hybrid bulk electrodes for high-performance lithium-ion batteries.

ABSTRACT: Nanoarchitectured electroactive materials can boost rates of Li insertion/extraction, showing genuine potential to increase power output of Li-ion batteries. However, electrodes assembled with low-dimensional nanostructured transition metal oxides by conventional approach suffer from dramatic reductions in energy capacities owing to sluggish ion and electron transport kinetics. Here we report that flexible bulk electrodes, made of three-dimensional bicontinuous nanoporous Cu/MnO2 hybrid and seamlessly integrated with Cu solid current collector, substantially optimizes Li storage behavior of the constituent MnO2. As a result of the unique integration of solid/nanoporous hybrid architecture that simultaneously enhances the electron transport of MnO2, facilitates fast ion diffusion and accomm

SUBMITTER: Hou C 

PROVIDER: S-EPMC3791456 | biostudies-literature | 2013 Oct

REPOSITORIES: biostudies-literature