Enabling Stable and Nonhysteretic Oxygen Redox Capacity in Li‐Excess Na Layered Oxides (Adv. Energy Mater. 11/2022). Issue 11 (17th March 2022)

• Record Type: Journal Article
• Authors: Yoon, Geon‐Hee; Koo, Sojung; Park, Sung‐Joon; Lee, Jaewoon; Koo, Chanwoo; Song, Seok Hyun; Jeon, Tae‐Yeol; Kim, Hyungsub; Bae, Jong‐Seong; Moon, Won‐Jin; Cho, Sung‐Pyo; Kim, Duho; Yu, Seung‐Ho
• Is Part Of: Advanced energy materials. Volume 12:Issue 11(2022)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2022-03-17
• Subjects: Al substitution -- first‐principles calculations -- layered oxides -- oxygen redox -- sodium‐ion batteries; Energy harvesting -- Materials -- Periodicals; Energy conversion -- Materials -- Periodicals; Energy storage -- Materials -- Periodicals; Photovoltaics -- Periodicals; Fuel cells -- Periodicals; Thermoelectric materials -- Periodicals; 621.31
• DOI: 10.1002/aenm.202270045
• Languages: English
• ISSNs: 1614-6832

Abstract

Abstract : Oxygen Redox In article number 2103384 Duho Kim, Seung‐Ho Yu and co‐workers improve the reversibility of oxygen redox in Li‐excess Na layered oxides by Al 3+ doping. The presence of an additional stable phase during the oxygen redox is a critical factor in extending and stabilizing the discharge capacity. In addition, redox‐inactive Al 3+ causes heterogeneous oxygen redox, which stabilizes the oxide framework under sensitively controlled oxygen participation upon cycling.