Enhanced Cyclability of Li–O2 Batteries Based on TiO2 Supported Cathodes with No Carbon or Binder

The decomposition of carbon materials and organic binders in Li–air batteries has been reported repeatedly in recent literature. The decomposition of carbon can harm the batteries’ cyclability further by catalyzing electrolyte degrading. Therefore, there is a critical need to exploit a new catalyst support substituting carbon and develop a binder free cathode preparation strategy for Li–air batteries. Herein, TiO2 nanotube arrays growing on Ti foam are used as the catalyst support to construct carbon and binder free oxygen diffusion electrodes. After being coated with Pt nanoparticles by a cool sputtering approach, the TiO2 nanotube arrays are used as cathodes of Li–O2 batteries. Benefiting from the stability of TiO2 in the discharge/charge processes, the Li–O2 batteries realize enhanced cyclability at high current densities (for instance, more than 140 cycles at 1 or 5 A g–1), within wide discharge/charge voltage windows (for instance, 1.5–4.5 V). X-ray photoelectron spectra and a scanning electron micro...

[1]  Jeffrey Read,et al.  Discharge characteristic of a non-aqueous electrolyte Li/O2 battery , 2010 .

[2]  Hubert A. Gasteiger,et al.  Catalytic activity trends of oxygen reduction reaction for nonaqueous Li-air batteries. , 2011, Journal of the American Chemical Society.

[3]  Haoshen Zhou,et al.  Carbon supported TiN nanoparticles: an efficient bifunctional catalyst for non-aqueous Li-O2 batteries. , 2013, Chemical communications.

[4]  Linda F. Nazar,et al.  Screening for superoxide reactivity in Li-O2 batteries: effect on Li2O2/LiOH crystallization. , 2012, Journal of the American Chemical Society.

[5]  Dan Xu,et al.  Novel DMSO-based electrolyte for high performance rechargeable Li-O2 batteries. , 2012, Chemical communications.

[6]  Hee-Dae Lim,et al.  Enhanced Power and Rechargeability of a Li−O2 Battery Based on a Hierarchical‐Fibril CNT Electrode , 2013, Advanced materials.

[7]  Aicheng Chen,et al.  Unique Electrochemical Catalytic Behavior of Pt Nanoparticles Deposited on TiO2 Nanotubes , 2012 .

[8]  Ji‐Guang Zhang,et al.  Investigation on the charging process of Li2O2-based air electrodes in Li–O2 batteries with organic carbonate electrolytes , 2011 .

[9]  Gengchao Wang,et al.  Surface properties of polyaniline/nano-TiO2 composites , 2004 .

[10]  K. M. Abraham,et al.  A Polymer Electrolyte‐Based Rechargeable Lithium/Oxygen Battery , 1996 .

[11]  S. Jiang,et al.  Synthesis of Pd/TiO2 nanotubes/Ti for oxygen reduction reaction in acidic solution , 2009 .

[12]  Wei-min Liu,et al.  Titanium dioxide doped polyaniline , 2005 .

[13]  Guangyu Zhao,et al.  Hierarchical porous Co3O4 films as cathode catalysts of rechargeable Li-O2 batteries , 2013 .

[14]  Dean J. Miller,et al.  In situ fabrication of porous-carbon-supported α-MnO2 nanorods at room temperature: application for rechargeable Li–O2 batteries , 2013 .

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

[16]  Kristina Edström,et al.  Li–O2 Battery Degradation by Lithium Peroxide (Li2O2): A Model Study , 2013 .

[17]  Qian Sun,et al.  A CoOx/carbon double-layer thin film air electrode for nonaqueous Li-air batteries , 2013 .

[18]  Z. Wen,et al.  A tubular polypyrrole based air electrode with improved O2 diffusivity for Li–O2 batteries , 2012 .

[19]  Yuhui Chen,et al.  The lithium-oxygen battery with ether-based electrolytes. , 2011, Angewandte Chemie.

[20]  Myounggu Park,et al.  Lithium‐Air Batteries: Survey on the Current Status and Perspectives Towards Automotive Applications from a Battery Industry Standpoint , 2012 .

[21]  Peter G. Bruce,et al.  Energy storage beyond the horizon: Rechargeable lithium batteries , 2008 .

[22]  Genxi Li,et al.  Electrochemical investigation on the catalytic ability of tyrosinase with the effect of nano titanium dioxide , 2006 .

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

[24]  P. Bruce,et al.  A Reversible and Higher-Rate Li-O2 Battery , 2012, Science.

[25]  Ji‐Guang Zhang,et al.  The stability of organic solvents and carbon electrode in nonaqueous Li-O2 batteries , 2012 .

[26]  C. M. Li,et al.  Nanostructured polyaniline/titanium dioxide composite anode for microbial fuel cells. , 2008, ACS nano.

[27]  Hun‐Gi Jung,et al.  An improved high-performance lithium-air battery. , 2012, Nature chemistry.

[28]  P. Bruce,et al.  Reactions in the rechargeable lithium-O2 battery with alkyl carbonate electrolytes. , 2011, Journal of the American Chemical Society.

[29]  Kristina Edström,et al.  Ether Based Electrolyte, LiB(CN)4 Salt and Binder Degradation in the Li-O2 Battery Studied by Hard X-ray Photoelectron Spectroscopy (HAXPES) , 2012 .

[30]  J. Pfleger,et al.  Nanocomposites based on titanium dioxide and polythiophene: Structure and properties , 2005 .

[31]  Stefan A Freunberger,et al.  The carbon electrode in nonaqueous Li-O2 cells. , 2013, Journal of the American Chemical Society.

[32]  A. De,et al.  Characterization and dielectric properties of polyaniline?TiO2 nanocomposites , 2004 .

[33]  Yuyan Shao,et al.  Making Li‐Air Batteries Rechargeable: Material Challenges , 2013 .