High Power Energy Storage Materials and Devices

Lead Research Organisation: University College London
Department Name: Chemistry

Abstract

The aim of this project is to investigate the use of sustainable, inexpensive and stable elements to develop nanomaterials for aqueous and non-aqueous hybrid supercapacitors (modified energy storage devices capable of rapidly charging and discharging). The project will also investigate the use of highly conductive electrode additives for increased power density and pseudocapacitive (storing charge via fast surface chemical processes) materials for enhanced energy density.
The novel science and methodology
A high throughput materials discovery approach to nanomaterials synthesis will be used to produce libraries of materials to be tested as hybrid supercapacitors. The materials will be mixed with a suitable conductive carbons and a binder to form electrodes, which are then investigated electrochemically to identify lead materials. These are then formed into balanced energy storage devices with activated carbon as the cathode to the nanomaterial anode. These devices are then subjected to power, energy and stability tests to identify the best performing materials. High performance materials will then be scaled up and fully characterised chemically, physically and structurally to determine composition/activity relationships and produce design rules for future materials. Applications for hybrid supercapacitor devices include powering mobile phones, regenerative breaking, hybrid and electric vehicles and unmanned drones, amongst others.

Publications

10 25 50

Studentship Projects

Project Reference Relationship Related To Start End Student Name
EP/R512400/1 01/10/2017 31/03/2022
1954993 Studentship EP/R512400/1 25/09/2017 30/09/2021 Yiana Scott Shakespeare
 
Description Discovery of high capacity materials for use as high power anodes in lithium ion batteries and hybrid ion capacitors.
Several elements of the research are due to be submitted for publication in the near future.
Exploitation Route Further development of key materials to improve the performance, such as the addition of conductive additives in the synthesis process to form composites, or the doping of other transition metal elements to alter the electronic properties of the materials.
The application of the best performing materials to more industrially applicable test cells such as pouch cells to develop the commercial use of the results.
Sectors Aerospace, Defence and Marine,Electronics,Energy