Journal article
Solid Suspension Flow Batteries Using Earth Abundant Materials
ACS applied materials & interfaces, Vol.8(3), pp.1759-1765
01/27/2016
DOI: 10.1021/acsami.5b09515
PMID: 26727225
Abstract
The technical features of solid-electrode batteries (e.g., high energy density, relatively low capital cost ($/kWh)) and flow batteries (e.g., long cycle life, design flexibility) are highly complementary. It is therefore extremely desirable to integrate their advantages into a single storage device for large-scale energy storage applications where lifetime cost ($/kW-h/cycle) is an extremely important parameter. Here, we demonstrate a non-Li-based-flow battery concept that replaces the aqueous solution of redox-active molecules found in typical redox flow batteries with suspensions of hydrophilic carbon particles ("solid suspension electrodes") coated with earth-abundant redox-active metals. The solid suspension electrodes charge by depositing earth-abundant redox-active metals onto the carbon particle suspension, which are then stripped during discharge operation. The electrical contact to the solid suspension electrodes is fed through fixed redox-inert hydrophobic carbon current collectors through "contact charge transfer" mechanism. The hydrophobicity of the current collectors prevents direct plating of redox-active metals onto their surfaces. The above concept was successfully used to demonstrate several non-Li-based battery chemistries including zinc-copper, zinc-manganese oxide, zinc-bromine, and zinc-sulfur, providing a pathway for potential applications in medium and large-scale electrical energy storage.
Details
- Title: Subtitle
- Solid Suspension Flow Batteries Using Earth Abundant Materials
- Creators
- Syed Mubeen - University of IowaYoung-Si JunJoun LeeEric W McFarland - University of Queensland
- Resource Type
- Journal article
- Publication Details
- ACS applied materials & interfaces, Vol.8(3), pp.1759-1765
- DOI
- 10.1021/acsami.5b09515
- PMID
- 26727225
- ISSN
- 1944-8244
- eISSN
- 1944-8252
- Language
- English
- Date published
- 01/27/2016
- Academic Unit
- Civil and Environmental Engineering; Chemical and Biochemical Engineering
- Record Identifier
- 9984197550802771
Metrics
12 Record Views