Design and electrochemical characteristics of single-layer cathode for flexible tubular type zinc-air fuel cells

Abstract A cathode of zinc-air fuel cells (ZAFCs) comprises a catalyst layer and a diffusion layer. We propose a new type of cathode, which overcomes the disadvantages of a double-layer cathode used in ZAFCs. To improve the performance of the single-layer cathode, dispersing the particles and reducing their size in the cathode mixture were conducted. The single-layer cathode had the same hydrophobicity as with the diffusion layer of the double-layer cathode and showed better electrochemical properties than the catalyst layer of the double-layer cathode. The single-layer cathode had a dense microstructure and a flat surface. The electrochemical performance and mechanical strength of the single-layer cathode were superior to those of a double-layer cathode. We showed single-layer cathode cell had better electrochemical performance than the double-layer cathode cell through a newly designed flexible-tubular-type ZAFC.

[1]  Donald R. Cahela,et al.  New structures of thin air cathodes for zinc–air batteries , 2003 .

[2]  Chi-Chang Hu,et al.  Development and characterization of bi-functional air electrodes for rechargeable zinc-air batteries: Effects of carbons , 2017 .

[3]  Ravinder Singh,et al.  Comparative study on gas sensing properties of rare earth (Tb, Dy and Er) doped ZnO sensor , 2017 .

[4]  E. Paolucci,et al.  Commercial development of energy—environmentally sound technologies for the auto-industry: the case of fuel cells , 2003 .

[5]  Sun Tai Kim,et al.  Metal-free Ketjenblack incorporated nitrogen-doped carbon sheets derived from gelatin as oxygen reduction catalysts. , 2014, Nano letters.

[6]  Zhongwei Chen,et al.  3D Ordered Mesoporous Bifunctional Oxygen Catalyst for Electrically Rechargeable Zinc-Air Batteries. , 2016, Small.

[7]  D. Zhou,et al.  Electrochemical characterisation of oxygen reduction on teflon-bonded gas diffusion electrodes , 1995 .

[8]  Prabal Sapkota,et al.  Zinc–air fuel cell, a potential candidate for alternative energy , 2009 .

[9]  Y. Boo,et al.  Scutellaria radix Extract as a Natural UV Protectant for Human Skin , 2016, Phytotherapy research : PTR.

[10]  Sun Tai Kim,et al.  Metal–Air Batteries with High Energy Density: Li–Air versus Zn–Air , 2010 .

[11]  Ketack Kim,et al.  Components in Zn Air Secondary Batteries , 2013 .

[12]  Wei Qu,et al.  A review on air cathodes for zinc–air fuel cells , 2010 .

[13]  Zidong Wei,et al.  Carbon-based air electrodes carrying MnO2 in zinc–air batteries , 2000 .

[14]  P. J. Sebastian,et al.  Studies on the oxygen reduction catalyst for zinc–air battery electrode , 2003 .

[15]  Chi-Chang Hu,et al.  Synthesis and characterization of carbon black/manganese oxide air cathodes for zinc-air batteries , 2014 .

[16]  Ian Brown,et al.  New developments in the Electric Fuel Ltd. zinc/air system , 1999 .

[17]  Yang-Kook Sun,et al.  The roles and electrochemical characterizations of activated carbon in zinc air battery cathodes , 2006 .

[18]  Raihan Othman,et al.  Hydroponics gel as a new electrolyte gelling agent for alkaline zinc–air cells , 2001 .

[19]  Seung-wook Eom,et al.  Effects of PTFE Contents on Characteristics of Cathode for Zn Air Batteries , 2003 .

[20]  F. Shieu,et al.  Clay as a dispersant in the catalyst layer for zinc–air fuel cells , 2008 .

[21]  N. Nguyen,et al.  Effects of hydrophobicity of the cathode catalyst layer on the performance of a PEM fuel cell , 2010 .

[22]  Zeyuan Ma,et al.  Degradation characteristics of air cathode in zinc air fuel cells , 2015 .

[23]  Ting Su,et al.  Electrical Study of Trapped Charges in Copper-Doped Zinc Oxide Films by Scanning Probe Microscopy for Nonvolatile Memory Applications , 2017, PloS one.

[24]  C. Martinson,et al.  Characterisation of a PEM electrolyser using the current interrupt method , 2014 .