title: Sodium-oxygen batteries with alkyl-carbonate and ether based electrolytes.
abstract: Recently, metal-air batteries, such as lithium-air and zinc-air systems, have been studied extensively as potential candidates for ultra-high energy density storage devices because of their exceptionally high capacities. Here, we report such an electrochemical system based on sodium, which is abundant and inexpensive. Two types of sodium-oxygen batteries were introduced and studied, i.e. with carbonate and non-carbonate electrolytes. Both types could deliver specific capacities (2800 and 6000 mA h g(-1)) comparable to that of lithium-oxygen batteries but with slightly lower discharge voltages (2.3 V and 2.0 V). The reaction mechanisms of sodium-oxygen batteries in carbonate and non-carbonate electrolytes were investigated and compared with those of lithium-oxygen batteries.
authors: Department of Materials Science and Engineering, Seoul National University, Seoul, Republic of Korea.
authors: Jinsoo
authors: J
authors: Kim
authors: Hee-Dae
authors: HD
authors: Lim
authors: Hyeokjo
authors: H
authors: Gwon
authors: Kisuk
authors: K
authors: Kang