Effect of Sulfate Electrolyte Additives on LiNi1/3Mn1/3Co1/3O2/Graphite Pouch Cell Lifetime: Correlation between XPS Surface Studies and Electrochemical Test Results

2014 ◽  
Vol 118 (51) ◽  
pp. 29608-29622 ◽  
Author(s):  
Lénaïc Madec ◽  
Jian Xia ◽  
Rémi Petibon ◽  
Kathlyne J. Nelson ◽  
Jon-Paul Sun ◽  
...  
Keyword(s):  
Sulfate Electrolyte ◽  
Test Results ◽  
Electrochemical Test ◽  
Surface Studies ◽  
Electrolyte Additives

MoS2/SnS2 nanocomposite as stable sodium-ion battery anode

2019 ◽  
Vol 13 (01) ◽  
pp. 1950095 ◽  
Author(s):  
Jingkai Yan ◽  
Qinyi Li ◽  
Yu Hao ◽  
Chen Dai ◽  
Yu Chen
Keyword(s):  
Composite Material ◽  
Reversible Capacity ◽  
Sodium Ion ◽  
Sodium Ion Battery ◽  
Sodium Ion Batteries ◽  
Synergic Effect ◽  
Test Results ◽  
Electrochemical Test ◽  
Capacity Reservation ◽  
Battery Anode

MoS2/SnS2 composite material with satisfactory electrochemical performance has been prepared through a facile two-step hydrothermal method followed by high temperature sintering. The as-synthesized nanocomposite exhibits both excellent reversible capacity and improved cycling durability as the anode material of sodium ion batteries. Based on electrochemical test results, MoS2/SnS2 shows an incipient capacity of 750[Formula: see text]mAh/g and a capacity reservation of 600[Formula: see text]mAh/g after 100 cycles at the current of 0.1[Formula: see text]A/g. Such a combination of MoS2 nanosheets and SnS2 nanoparticles alleviates the agglomeration problem and attributes strong synergic effect, making MoS2/SnS2 composite a potential sodium ion battery anode.

scholarly journals Effect of NaNO2and C6H15NO3Synergistic Admixtures on Steel-Rebar Corrosion in Concrete Immersed in Aggressive Environments

2015 ◽  
Vol 2015 ◽  
pp. 1-11 ◽  
Author(s):  
Joshua Olusegun Okeniyi ◽  
Abimbola Patricia Idowu Popoola ◽  
Cleophas Akintoye Loto ◽  
Olugbenga Adeshola Omotosho ◽  
Stanley Okechukwu Okpala ◽  
...  
Keyword(s):  
Sodium Nitrite ◽  
Environmental Effects ◽  
Test Results ◽  
Electrochemical Test ◽  
Corrosive Media ◽  
Synergistic Interactions ◽  
Steel Rebar ◽  
Cooperative Adsorption ◽  
Rebar Corrosion ◽  
Synergistic Combinations

This paper studies effect of different combinations of NaNO2(sodium nitrite) and C6H15NO3(triethanolamine (TEA)), as synergistic admixtures in concrete immersed in NaCl and in H2SO4test environments, on the corrosion of the concrete reinforcing steel (rebar). Although statistically analysed electrochemical test results confirmed NaNO2effectiveness, synergistic combinations of 4 g NaNO2+ 4 g C6H15NO3in NaCl medium and of 2 g NaNO2+ 6 g C6H15NO3in H2SO4medium were also highly effective at inhibiting rebar corrosion. Synergistic parameter analyses showed that the effective synergistic admixtures that inhibited concrete steel-rebar corrosion in their respective medium were the NaNO2and C6H15NO3combinations that exhibited synergistic interactions of cooperative adsorption on steel-rebar. These support the suitability of requisite concentration of triethanolamine as additive admixture with sodium nitrite for steel-rebar corrosion mitigation, which is potent with reduced environmental effects, in concrete immersed in NaCl and in H2SO4corrosive media.

Novel Design and Fabrication of Thermal Battery Cathodes Using Thermal Spray

1998 ◽  
Vol 548 ◽  
Author(s):  
Hui Ye ◽  
Chris Strock ◽  
T. Danny Xiao ◽  
Peter R. Strutt ◽  
David E. Reisner ◽  
...  
Keyword(s):  
Thermal Spray ◽  
Arc Plasma ◽  
Test Results ◽  
X Ray Diffraction ◽  
Electrochemical Test ◽  
Thermal Battery ◽  
Thermal Batteries ◽  
Dc Arc ◽  
Oxygen Fuel ◽  
Novel Design

ABSTRACTLi-Alloy/FeS2 thermal batteries are the predominant thermal battery chemistry today. Conventional electrodes are fabricated by cold pressing of powders. A better means of providing thin electrodes would dramatically increase volumetric and gravimetric energy densities and cost efficiency of thermal batteries. In this study, experiments were conducted on fabricating the cathode via high-velocity oxygen-fuel (HVOF) and dc-arc plasma thermal spray technique. The deposited films were characterized by cross-section examination using Scanning Electron Microscopy (SEM) and X-ray Diffraction. The thermal decomposition of pyrite was suppressed by a proprietary additive. The electrochemical test results showed that pyrite cathodes prepared by dc-arc plasma spraying with additives demonstrated better performance compared traditional pressed-powder electrodes.

Photo Electrochemical Responses of Titanium Oxide Nanotube Arrays on Pure Titanium Substrate

2012 ◽  
Vol 588-589 ◽  
pp. 43-46
Author(s):  
Feng Qin Yu ◽  
Min Dong ◽  
Ya Li Yi
Keyword(s):  
Visible Light ◽  
Titanium Oxide ◽  
Pure Titanium ◽  
Titanium Substrate ◽  
Open Circuit ◽  
Test Results ◽  
Electrochemical Test ◽  
Titanium Dioxide Nanotubes ◽  
Metallic Oxides ◽  
Titanium Oxide Nanotubes

This paper deals with photo electrochemical responses of titanium dioxide nanotubes on pure titanium. Photosensitive electrodes (anodes) with the major composition of doped oxides were made using the titanium oxide nanotubes. The responses of the oxide nanotubes with different additives to both ultraviolet (Uv) and visible (Vis) light were illustrated. Research results of the enhance absorption of visible light by adding transition metals or metallic oxides including Co, Ni, Cu, Zn, CoO, CuO, NiO, ZnO into the nanotubes will be shown. Finally, test results of the photo electrochemical fuel cells using diluted glycerol as the fuel under the irradiation of natural light will be presented and the open circuit voltage values will be given. The photo electrochemical test results show that the doped titanium oxide nanotubes show the n-type behavior. The photo anodes can absorb both ultraviolet and visible light. But the response to the ultraviolet light is five to ten times stronger.

Corrosion Inhibition of Concrete Steel-Reinforcement in Saline/Marine Simulating-Environment by Rhizophora mangle L.

2015 ◽  
Vol 227 ◽  
pp. 185-189 ◽  
Author(s):  
Joshua Olusegun Okeniyi ◽  
Cleophas Akintoye Loto ◽  
Abimbola Patricia Idowu Popoola
Keyword(s):  
Corrosion Inhibition ◽  
Leaf Extract ◽  
Inhibition Efficiency ◽  
Rhizophora Mangle ◽  
Steel Reinforcement ◽  
Concrete Slabs ◽  
Test Results ◽  
Electrochemical Test ◽  
Steel Reinforced Concrete ◽  
Reinforced Concrete Slabs

Corrosion inhibition of concrete steel-reinforcement in 3.5% NaCl, simulating saline/marine environment, by the leaf extract ofRhizophora mangleL. was studied in this paper. For this, duplicated specimens of steel-reinforced concrete slabs, admixed with different concentrations of the leaf extract, were immersed in the corrosive test-medium. Analyses, as per ASTM G16-95 R04, of the electrochemical test-results identified 0.0833%Rhizophora mangleL., per weight of cement, with optimal inhibition efficiencyη= 95.73±0.15%. The study established a decrease in inhibition effectiveness as concentration ofRhizophora mangleL. increases.

A Comparative Study of a Family of Sulfate Electrolyte Additives

2013 ◽  
Vol 161 (3) ◽  
pp. A264-A274 ◽  
Author(s):  
Jian Xia ◽  
N. N. Sinha ◽  
L. P. Chen ◽  
J. R. Dahn
Keyword(s):  
Comparative Study ◽  
Sulfate Electrolyte ◽  
Electrolyte Additives

A New Chromate-Free Insulating Coating on Silicon Steel

2014 ◽  
Vol 1004-1005 ◽  
pp. 757-762 ◽  
Author(s):  
Shuang Hong Wang ◽  
Yong Feng Long ◽  
Shi Lu Zhao ◽  
Cheng Qiang An ◽  
Ke Ding
Keyword(s):  
High Temperature ◽  
Salt Spray ◽  
Silicon Steel ◽  
Salt Spray Test ◽  
Neutral Salt ◽  
Test Results ◽  
High Temperature Annealing ◽  
Electrochemical Test ◽  
Comprehensive Performance ◽  
Resistance Value

The water-based paint had been examined to prepare a new chromate-free insulating coating on silicon steels. The structure of the insulating coating was characterized by scanning electron microscopy, energy dispersive spectroscopy and infrared spectroscopy. Adhesion, high temperature annealing, and surface insulating resistance were measured. Corrosion resistance was investigated by neutral salt spray test and electrochemical test. Results exhibited that the insulating coating had excellent comprehensive performance. The adhesive level was 5B degree; the high temperature annealing test showed no coating degradation after heat treatment of 2 h at 450 °C in air or at 750 °C in nitrogen; the salt spray test showed the corrosion area was less than 2 % after the 12 h salt spray; when the coating thickness was 1.0-1.2 μm, the surface insulating resistance value was 380-420 Ω/mm2.

Influence of Triethylamine Inhibitor Addition on the Sealing Process of 6063 Al Alloy

2012 ◽  
Vol 538-541 ◽  
pp. 230-234
Author(s):  
Hui Cheng Yu ◽  
Xiao Xiao Huang ◽  
Yan Yan Han ◽  
Dong Ping Wei
Keyword(s):  
Corrosion Resistance ◽  
Corrosion Potential ◽  
Electrochemical Impedance ◽  
Corrosion Current ◽  
Al Alloy ◽  
Test Results ◽  
Electrochemical Test ◽  
Tafel Polarization ◽  
Electrochemical Parameters ◽  
6063 Al Alloy

To improve the corrosion resistance of Al alloy, triethylamine (TEN) was added into the sealing solutions. Tafel polarization and electrochemical impedance spectroscopy(EIS) techniques were used to investigate the electrochemical behavior of sealing coatings formed in different concentrations of triethylamine(TEN). Compared with the coatings with D. I. water and the bare aluminum alloy, the polarization curves show that the sealing coatings formed in 5.0 – 7 .0 g.L-1 triethylamine (TEN) solutions have more positive corrosion potential (Ecorr) and pitting corrosion potential (Epit), and lower corrosion current density (icorr). Electrochemical parameters of EIS indicate that the sealing coatings have higher corrosion resistance. The electrochemical test results show the prepared sealing coatings have better corrosion resistance.

One Sulfonate and Three Sulfate Electrolyte Additives Studied in Graphite/LiCoO2Pouch Cells

2015 ◽  
Vol 162 (12) ◽  
pp. A2227-A2235 ◽  
Author(s):  
Jian Xia ◽  
R. Petibon ◽  
N. N. Sinha ◽  
J. R. Dahn
Keyword(s):  
Sulfate Electrolyte ◽  
Electrolyte Additives
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