Stability of a Water-Stable Lithium Metal Anode for a Lithium–Air Battery with Acetic Acid–Water Solutions

The stability of water-stable lithium metal in aqueous acetic acid solution was examined as an anode in a lithium-air rechargeable battery. The water-stable lithium anode consisted of a water-stable glass-ceramic Li 1+x+y Ti 2-x Al x Si y P 3-y O 12 (LTAP), a poly(ethylene oxide) (PEO)-based electrolyte with Li(CF 3 SO 2 ) 2 N (LiTFSI), and lithium metal. The LTAP immersed in CH 3 COOH (HAc)-H 2 O-saturated CH 3 COOLi (LiAc) solutions at 50°C for several weeks showed no change in the X-ray diffraction pattern and showed a slight decrease in the electrical conductivity. The water-stable lithium anode, Li/PEO 18 LiTFSI/LTAP, showed a total resistance of 164 Ω cm 2 at 60°C after being immersed in HAc (90 vol %)-H 2 O (10 vol %)-saturated LiAc for 1 week. The Li/PEO 18 LiTFSI/LTAP/HAc-H 2 O-LiAc/Pt black air cell had a low polarization for lithium dissolution and deposition at a current density of 1 mA cm -2 . A prototype lithium-air cell using a carbon air electrode with a platinum catalyst showed a good charge and discharge cycle performance, and about 30% of acetic acid in the cell was consumed and recovered in the charge and discharge process.

[1]  John B. Goodenough,et al.  LixCoO2 (0, 1981 .

[2]  K. Abraham,et al.  The Electrochemical Intercalation of Li into Graphite in Li/Polymer Electrolyte/Graphite Cells , 1995 .

[3]  Jie Fu.  Superionic conductivity of glass-ceramics in the system Li 2O- Al 2O 3-TiO 2-P 2O 5 , 1997 .

[4]  J. Fu.  Fast Li+ ion conduction in Li2O–(Al2O3 Ga22O3)–TiO2–P2O5 glass–ceramics , 1998 .

[5]  Jeffrey Read,et al.  Characterization of the Lithium/Oxygen Organic Electrolyte Battery , 2002 .

[6]  Matthew H. Ervin,et al.  Oxygen Transport Properties of Organic Electrolytes and Performance of Lithium/Oxygen Battery , 2003 .

[7]  Takashi Kuboki,et al.  Lithium-air batteries using hydrophobic room temperature ionic liquid electrolyte , 2005 .

[8]  N. Imanishi,et al.  Novel Composite Anodes Consisting of Lithium Transition-Metal Nitrides and Transition Metal Oxides for Rechargeable Li-Ion Batteries , 2006 .

[9]  P. Bruce,et al.  Rechargeable LI2O2 electrode for lithium batteries. , 2006, Journal of the American Chemical Society.

[10]  M. Salomon,et al.  Li-air batteries: A classic example of limitations owing to solubilities , 2007 .

[11]  Tao Zhang,et al.  Lithium anode for lithium-air secondary batteries , 2008 .

[12]  M. Armand,et al.  Building better batteries , 2008, Nature.

[13]  Peter G Bruce,et al.  Alpha-MnO2 nanowires: a catalyst for the O2 electrode in rechargeable lithium batteries. , 2008, Angewandte Chemie.

[14]  Tao Zhang,et al.  Li∕Polymer Electrolyte∕Water Stable Lithium-Conducting Glass Ceramics Composite for Lithium–Air Secondary Batteries with an Aqueous Electrolyte , 2008 .

[15]  N. Sammes,et al.  Water-Stable Lithium Anode with the Three-Layer Construction for Aqueous Lithium–Air Secondary Batteries , 2009 .

[16]  Tao Zhang,et al.  Study on lithium/air secondary batteries—Stability of NASICON-type lithium ion conducting glass–ceramics with water , 2009 .