A Novel High Temperature Metal - Air Battery

Based on the planar SOFC and SOE technology, a high temperature metal - air battery was operated at temperatures between 700°C and 800°C. It reached charging and discharging capacities of about 2 hours at power densities of more than 250mW/cm². A Siemens stack concept was developed and validated in...

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Bibliographic Details
Published in:ECS transactions 2013-04, Vol.50 (45), p.125-135
Main Authors: Drenckhahn, Wolfgang W, Greiner, Horst, Kühne, Michael, Landes, Harald, Leonide, Andre, Litzinger, Kevin, Lu, C., Schuh, Carsten, Shull, Jim, Soller, Thomas
Format: Article
Language:English
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Summary:Based on the planar SOFC and SOE technology, a high temperature metal - air battery was operated at temperatures between 700°C and 800°C. It reached charging and discharging capacities of about 2 hours at power densities of more than 250mW/cm². A Siemens stack concept was developed and validated in numerous lab experiments as well as in several stack demonstrators of more than 1kW power output. The storage material is a proprietary development consisting of a iron/iron oxide combination which can be produced economically. It showed very low degradation rates of 1 - 2% in 1,000 charging / discharging cycles. More than 10,000 cycles were reached in 10x10 cm² short stacks. System efficiencies for the upper MW range of > 60% and a cycle life of about 10,000 cycles will be achieved.
ISSN:1938-5862
1938-6737
DOI:10.1149/05045.0125ecst