Rendering Redox Reactions of Cathodes in Li-Ion Capacitors Enabled by Lanthanides.

ABSTRACT: Capacitors allow extremely fast charge and discharge operations, which is a challenge faced by recent metal-ion batteries despite having highly improved energy densities. Thus, combined type electric energy storage devices that can integrate high energy density and high power density with high potentials, can overcome the shortcomings of the current metal-ion batteries and capacitors. However, the limited capacities of cathode materials owing to the barren redox reactions are regarded as an obstacle for the development of future high-performance hybrid metal-ion capacitors. In this study, we demonstrate the redox-reaction-rendering effect of the much overlooked lanthanide elements when used as the cathode of lithium-ion capacitors using the mesoporous carbon (MC) as a matrix material. Cons

SUBMITTER: Zhang K 

PROVIDER: S-EPMC6990622 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature