A Carbon–Air Battery for High Power Generation1. Issue 12 (23rd January 2015)

• Record Type: Journal Article
• Authors: Yang, Binbin; Ran, Ran; Zhong, Yijun; Su, Chao; Tadé, Moses O.; Shao, Zongping
• Is Part Of: Angewandte Chemie international edition. Volume 54:Issue 12(2015)
• Page Start: 3722
• Page End: 3725
• Publication Date: 2015-01-23
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201411039
• Languages: English
• ISSNs: 1433-7851

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>We report a carbon–air battery for power generation based on a solid‐oxide fuel cell (SOFC) integrated with a ceramic CO₂‐permeable membrane. An anode‐supported tubular SOFC functioned as a carbon fuel container as well as an electrochemical device for power generation, while a high‐temperature CO₂‐permeable membrane composed of a CO₃²⁻ mixture and an O²⁻ conducting phase (Sm_0.2Ce_0.8O_1.9) was integrated for in situ separation of CO₂ (electrochemical product) from the anode chamber, delivering high fuel‐utilization efficiency. After modifying the carbon fuel with a reverse Boudouard reaction catalyst to promote the in situ gasification of carbon to CO, an attractive peak power density of 279.3 mW cm⁻² was achieved for the battery at 850 °C, and a small stack composed of two batteries can be operated continuously for 200 min. This work provides a novel type of electrochemical energy device that has a wide range of application potentials.</p> </abstract>