TY - JOUR
T1 - Catalysis studies and electrode design considerations for Lithium-air batteries
AU - Lu, Yi Chun
AU - Harding, Jonathon R.
AU - Tsukada, Yasuhiro
AU - Gasteiger, Hubert A.
AU - Shao-Horn, Yang
PY - 2010
Y1 - 2010
N2 - Rechargeable lithium-air batteries promise up to three-fold higher specific energies compared to conventional lithium-ion batteries. However, very little is known about the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) in lithium-air battery cathodes, where oxygen is reduced to lithium (per)oxide in the presence of lithium ions in organic electrolyte. Therefore, we recently developed a rotating disk electrode (RDE) method to study the ORR (discharge reaction) under well-controlled mass-transport conditions, and we will discuss the ORR activity of metal and carbon model-electrodes and compare these findings with discharge data on single-cell Li-air batteries using catalyzed and non-catalyzed high-surface-area carbon electrodes. Electrode design considerations will be discussed. We will also present data on the catalysis of the OER (charging reaction) for several catalysts, using single-cell Li-air batteries as well as electrodes pre-loaded with Li2O2. The catalytic trends for different electrodes will be compared to their catalytic activity in aqueous electrolytes.
AB - Rechargeable lithium-air batteries promise up to three-fold higher specific energies compared to conventional lithium-ion batteries. However, very little is known about the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) in lithium-air battery cathodes, where oxygen is reduced to lithium (per)oxide in the presence of lithium ions in organic electrolyte. Therefore, we recently developed a rotating disk electrode (RDE) method to study the ORR (discharge reaction) under well-controlled mass-transport conditions, and we will discuss the ORR activity of metal and carbon model-electrodes and compare these findings with discharge data on single-cell Li-air batteries using catalyzed and non-catalyzed high-surface-area carbon electrodes. Electrode design considerations will be discussed. We will also present data on the catalysis of the OER (charging reaction) for several catalysts, using single-cell Li-air batteries as well as electrodes pre-loaded with Li2O2. The catalytic trends for different electrodes will be compared to their catalytic activity in aqueous electrolytes.
UR - http://www.scopus.com/inward/record.url?scp=79951498134&partnerID=8YFLogxK
M3 - Conference article
AN - SCOPUS:79951498134
SN - 0065-7727
JO - ACS National Meeting Book of Abstracts
JF - ACS National Meeting Book of Abstracts
T2 - 240th ACS National Meeting and Exposition
Y2 - 22 August 2010 through 26 August 2010
ER -