A Carbon–Air Battery for High Power Generation1. (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. Volume 127:Number 12(2015)
• Page Start: 3793
• Page End: 3796
• Publication Date: 2015-01-23
• Subjects: Brennstoffzellen -- Gasdiffusion -- Homogene Katalyse -- Kohlenstoff‐Luft‐Batterien -- Trennmembranen; Chemistry -- Periodicals; 540
• DOI: 10.1002/ange.201411039
• Languages: English
• ISSNs: 0044-8249

Abstract

Abstract: 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 CO3 2− mixture and an O 2− conducting phase (Sm0.2 Ce0.8 O1.9 ) 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.