C60/Na4FeO3/Li3V2(PO4)3/soft carbon quaternary hybrid superstructure for high-performance battery-supercapacitor hybrid devices

Abstract

To develop battery-supercapacitor hybrid devices with high energy and power densities, we propose a rational design of a quaternary hybrid superstructure by using a high-energy biotemplate. This new superstructure is composed of stable fullerene C 60 nanocages, electroactive Na 4 FeO 3 , high-energy Li 3 V 2 (PO 4) 3 and soft carbon as well as tubular ordered mesoporous channels. This design takes advantage of the unique properties of each component, resulting in nanocomposites with synergistic effects to improve the charge transfer and energy storage. We found that this quaternary hybrid electrode has both high energy and power densities as well as a long cycling life in a Li/Na mixedion electrolyte, outperforming a multitude of other battery-supercapacitor hybrid devices reported thus far. The charge storage mechanisms of this hybrid superstructure are proposed for optimizing the electrode design.

Metal Ti quantum chain-inlaid 2D NaSn2(PO4)3/H-doped hard carbon hybrid electrodes with ultrahigh energy storage density

“…The T 0.01 -QDs/2D-NSP/H-HC sample demonstrates a type-IV isotherm, indicating the existence of mesopores [49]. Its pore size distribution is 2−37 nm (Fig.…”

Fullerenes for rechargeable battery applications: Recent developments and future perspectives

“…6b). Their group also reported [84] a novel C 60 /Na 4 FeO 3 /high-energy Li 3 V 2 (PO 4 ) 3 /soft carbon (C 60 /NFO/HE-LVP/SC) hybrid electrode as a battery-supercapacitor hybrid devices (BSHs). The introduction of C 60 not only brought high conductivity and provided some degree of crystallinity, but also delivered an extra pseudocapacitance (Fig.…”

High-Performance Lithium-Ion Hybrid Supercapacitors Based on Lithium Salt/Imidazolium Ionic Liquid Electrolytes and Ni-Doped LiMn2O4 Cathode Materials

“…Battery-supercapacitor hybrid (BSH) devices have been receiving considerable attention as a solution for the growing demand for grid-scale energy storage and electric vehicles. In the BSH device, the combination of a faradic (battery) and capacitive (supercapacitor) energy storage mechanism allows the system to deliver a higher energy density than traditional electric-double-layered capacitors (EDLCs) and overcome the power density of the batteries . Among all possible design hybridizations, Li-ion hybrid supercapacitors (Li-HSCs) are the most widely studied due to the well-known properties and commercial success of lithium-ion batteries (LIBs).…”