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A novel differential electrochemical mass spectrometry method to determine the product distribution from parasitic Methanol oxidation reaction on oxygen reduction reaction catalysts
10.1016/j.jpowsour.2018.04.002 2018-04-07 The oxygen reduction reaction is in research focus since several decades due to its importance for the overall fuel cell performance. In direct methanol fuel cells, the crossover of methanol and its subsequent parasitic oxidation are main issues when it comes... |
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Liquid water breakthrough location distances on a gas diffusion layer of polymer electrolyte membrane fuel cells
10.1016/j.jpowsour.2018.04.004 2018-04-07 The lattice Boltzmann method is adopted to simulate the three dimensional dynamic process of liquid water breaking through the gas diffusion layer (GDL) in the polymer electrolyte membrane fuel cell. 22 micro-structures of Toray GDL are built based on a stoch... |
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A self-supported metal-organic framework derived Co3O4 film prepared by an in-situ electrochemically assistant process as Li ion battery anodes
10.1016/j.jpowsour.2018.04.001 2018-04-06 Derivates of metal-organic frameworks are promising materials of self-supported Li ion battery anodes due to the good dispersion of active materials, conductive scaffold, and mass transport channels in them. However, the discontinuous growth and poor adherenc... |
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Sliding mode observer for proton exchange membrane fuel cell: automotive application
10.1016/j.jpowsour.2018.03.057 2018-04-06 This work proposes a state observer as a tool to manage cost and durability issues for PEMFC (Proton Exchange Membrane Fuel Cell) in automotive applications. Based on a dead-end anode architecture, the observer estimates the nitrogen build-up in the anode sid... |
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Na1.25Ni1.25Fe1.75(PO4)3 nanoparticles as a janus electrode material for Li-ion batteries
10.1016/j.jpowsour.2018.03.069 2018-04-02 A solvothermal method was used to prepare Na1.25Ni1.25Fe1.75(PO4)3 nanoparticles, a new promising electrode material for lithium-ion batteries. The composition and the crystal structure were determined by 57Fe Mössbauer spectroscopy and powder X-ray diffracti... |
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Surface-protected LiCoO2 with ultrathin solid oxide electrolyte film for high-voltage lithium ion batteries and lithium polymer batteries
10.1016/j.jpowsour.2018.03.076 2018-04-02 Surface modification of LiCoO2 with the ultrathin film of solid state electrolyte of Li1.4Al0.4Ti1.6(PO4)3 (LATP) has been realized by a new and facile solution-based method. The coated LiCoO2 reveals enhanced structural and electrochemical stability at high ... |
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High-energy lithium-ion battery using substituted LiCoPO4: From coin type to 1 Ah cell
10.1016/j.jpowsour.2018.03.077 2018-04-01 Cr, Fe and Si were added to improve the performance of olivine LiCoPO4 in cathodes for lithium-ion batteries. A substituted-LiCoPO4 in a half cell delivered a reversible capacity of 125 mAh/g at C/3 rate, with no capacity loss after over 100 cycles at 25 °C. ... |
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Improvement of electrochemical properties and oxidation/reduction behavior of cobalt in positive electrode of Ni–metal hydride battery
10.1016/j.jpowsour.2018.03.062 2018-03-31 The deterioration mechanisms of a Ni–metal hydride (Ni–MH) battery system during operation is investigated. A decrease of the discharge voltage is observed at the early stage of the cycle, which indicates the possible occurrence of an unexpected system shutdo... |
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A numerical model for a thermally-regenerative ammonia-based flow battery using for low grade waste heat recovery
10.1016/j.jpowsour.2018.03.070 2018-03-31 A stationary and a transient two-dimensional models, based on the universal conservation laws and coupled with electrochemical reactions, are firstly applied to describe a single thermally-regenerative ammonia-based flow battery (TR-AFB), and emphasis is plac... |
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High-capacity FeTiO3/C negative electrode for sodium-ion batteries with ultralong cycle life
10.1016/j.jpowsour.2018.03.068 2018-03-30 The development of electrode materials which improve both the energy density and cycle life is one of the most challenging issues facing the practical application of sodium-ion batteries today. In this work, FeTiO3/C nanoparticles are synthesized as negative ... |