HybridFlex | Flexible Hybrid Sodium Ion Capacitors from Renewable Electrospun Lignin: Device Manufacture, Performance Testing and Solid Electrolyte Layer Investigations

Summary
This project aims to develop a sustainable, environmentally friendly, flexible, Hybrid Sodium Ion Capacitor to support the rapid development of flexible/wearable electronics and sodium ion energy storage technology. This will be achieved by integrating a flexible hard carbon battery-style anode (higher energy density) and a flexible porous carbon supercapacitor style cathode (higher power density), electrospun from renewable lignin, into one energy storage device. As a result, this device will deliver higher energy density than flexible supercapacitors, while maintaining high cyclability and power density.These electrodes will be produced under the guidence of Prof. Titirici, a world-renowned expert in sustainable carbon materials/energy storage.

The choice of sodium in this project over lithium is for the following reasons: (i) Na is more abundant and more evenly globally distributed on land (salt, sodium carbonate, and sodium hydroxide) and in salt water, (ii) Al current collectors can be used, instead of Cu in Li, representing a considerable cost saving, and (iii) metal plating of the carbon electrodes occurs less in Na, suggesting that cyclability will be greater with Na than Li.

Finally, the fundamentals (solid interface layer, cathodic interlayer) in using Na ions for hybrid capacitors will be examined extensively using laboratory based techniques (XPS and SEM) and synchrotron methods (NEXAFS/XANES). Understanding the formation of this layer is vital to producing flexible hybrid ion capacitors, as it's formation is one of the leading causes of reduced Coulombic efficiency in batteries resulting in premature failure and poor capacity retention.
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More information & hyperlinks
Web resources: https://cordis.europa.eu/project/id/888124
Start date: 01-10-2021
End date: 22-11-2023
Total budget - Public funding: 224 933,76 Euro - 224 933,00 Euro
Cordis data

Original description

This project aims to develop a sustainable, environmentally friendly, flexible, Hybrid Sodium Ion Capacitor to support the rapid development of flexible/wearable electronics and sodium ion energy storage technology. This will be achieved by integrating a flexible hard carbon battery-style anode (higher energy density) and a flexible porous carbon supercapacitor style cathode (higher power density), electrospun from renewable lignin, into one energy storage device. As a result, this device will deliver higher energy density than flexible supercapacitors, while maintaining high cyclability and power density.These electrodes will be produced under the guidence of Prof. Titirici, a world-renowned expert in sustainable carbon materials/energy storage.

The choice of sodium in this project over lithium is for the following reasons: (i) Na is more abundant and more evenly globally distributed on land (salt, sodium carbonate, and sodium hydroxide) and in salt water, (ii) Al current collectors can be used, instead of Cu in Li, representing a considerable cost saving, and (iii) metal plating of the carbon electrodes occurs less in Na, suggesting that cyclability will be greater with Na than Li.

Finally, the fundamentals (solid interface layer, cathodic interlayer) in using Na ions for hybrid capacitors will be examined extensively using laboratory based techniques (XPS and SEM) and synchrotron methods (NEXAFS/XANES). Understanding the formation of this layer is vital to producing flexible hybrid ion capacitors, as it's formation is one of the leading causes of reduced Coulombic efficiency in batteries resulting in premature failure and poor capacity retention.

Status

SIGNED

Call topic

MSCA-IF-2019

Update Date

28-04-2024
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Horizon 2020
H2020-EU.1. EXCELLENT SCIENCE
H2020-EU.1.3. EXCELLENT SCIENCE - Marie Skłodowska-Curie Actions (MSCA)
H2020-EU.1.3.2. Nurturing excellence by means of cross-border and cross-sector mobility
H2020-MSCA-IF-2019
MSCA-IF-2019