0000000001175544

AUTHOR

Bruce E. Logan

0000-0001-7478-8070

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Electrical power production from low-grade waste heat using a thermally regenerative ethylenediamine battery

2017

Abstract Thermally regenerative ammonia-based batteries (TRABs) have been developed to harvest low-grade waste heat as electricity. To improve the power production and anodic coulombic efficiency, the use of ethylenediamine as an alternative ligand to ammonia was explored here. The power density of the ethylenediamine-based battery (TRENB) was 85 ± 3 W m−2-electrode area with 2 M ethylenediamine, and 119 ± 4 W m−2 with 3 M ethylenediamine. This power density was 68% higher than that of TRAB. The energy density was 478 Wh m−3-anolyte, which was ∼50% higher than that produced by TRAB. The anodic coulombic efficiency of the TRENB was 77 ± 2%, which was more than twice that obtained using ammon…

Battery (electricity)Materials scienceEnergy Engineering and Power TechnologyEthylenediamine02 engineering and technology010402 general chemistry7. Clean energy01 natural scienceschemistry.chemical_compoundWaste heatElectrical and Electronic EngineeringPhysical and Theoretical ChemistryPower densityEnergy recoveryWaste managementRenewable Energy Sustainability and the Environment021001 nanoscience & nanotechnology0104 chemical sciencesSeparation processAnodeChemical engineeringchemistryLow-grade waste heat Thermally regenerative battery Ethylenediamine High power production Thermoelectrochemical systems0210 nano-technologyFaraday efficiencyJournal of Power Sources
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