Activities per year
Project Details
Description
Hybrid supercapacitors employ a positive battery electrode and a negative electric double-layer (EDL) charging electrode in a single cell. In order to provide a maximum charge storage, nanoporous carbons with high specific surface area of up to 2000 m2/g are used as electrode materials. The ECOCAPS project deals with the development of hybrid supercapacitors in aqueous iodide-based electrolytes and their long term testing. The iodide salt is the main component of the aqueous electrolyte, which results in reversible iodine electrodeposition in the pores of the positive carbon electrode causing a battery-like charging behaviour. The use of an aqueous electrolyte makes these energy storage devices environmentally friendly and safe to fabricate and operate. In addition, all the components including current collectors, separator, binder and electrodes are prepared from low cost materials. Assembling of a hybrid supercapacitor with an aqueous iodide electrolyte is far less tedious compared to organic electrolyte based supercapacitors. Thanks to the hybridization of battery and EDL electrodes, the device displays high energy and power densities and long cycle stability similar to organic electrolyte based supercapacitors. ECOCAPs proposes to use inexpensive water-in-salt electrolytes and aluminium current collectors to enhance the energy and power density as well as the cyclability and to reduce self-discharge. The envisioned eco-friendly supercapacitor prototype will lead to a design of energy storage devices at affordable cost that opens the door for commercial development.
Status | Active |
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Effective start/end date | 1/10/21 → 30/09/24 |
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Activities
- 3 Talk at conference or symposium
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Properties of novel water-in-salt electrolytes
Md Tauhidul Islam (Speaker), Qamar Abbas (Contributor) & Bernhard Gollas (Contributor)
12 Apr 2023 → 13 Apr 2023Activity: Talk or presentation › Talk at conference or symposium › Science to science
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Ion dynamics in porous carbon electrode of supercapacitor via simultaneous EIS of anode and cathode
Md Tauhidul Islam (Speaker), Bernhard Gollas (Contributor) & Qamar Abbas (Contributor)
28 Sept 2023 → 29 Sept 2023Activity: Talk or presentation › Talk at conference or symposium › Science to science
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Physicochemical and electrochemical characteristics of novel aqueous electrolytes for hybrid capacitors
Md Tauhidul Islam (Speaker), Qamar Abbas (Contributor) & Bernhard Gollas (Contributor)
11 Jul 2022 → 15 Jul 2022Activity: Talk or presentation › Talk at conference or symposium › Science to science