The influence of anode passivation on the quality and structure of cathode copper

1977 ◽  
Vol 22 (11) ◽  
pp. 1249-1253 ◽  
Author(s):  
Lech Pajdowski
Keyword(s):  
Cathode Copper ◽  
Anode Passivation

Influence of VC and FEC Additives on Interphase Properties of Carbon in Li-Ion Cells Investigated by Combined EIS & EQCM-D

2020 ◽  
Author(s):  
Paul Kitz ◽  
Matthew Lacey ◽  
Petr Novák ◽  
Erik Berg
Keyword(s):  
Electrochemical Impedance ◽  
Solid Electrolyte Interphase ◽  
Electrochemical Quartz Crystal Microbalance ◽  
Gas Analysis ◽  
Side Reactions ◽  
Ion Diffusion ◽  
Battery Cell ◽  
Anode Passivation ◽  
Order Of Magnitude ◽  
Li Ion

<div>The electrolyte additives vinylene carbonate (VC) and fluoroethylene carbonate (FEC) are well known for increasing the lifetime of a Li-ion battery cell by supporting the formation of an effective solid electrolyte interphase (SEI) at the anode. In this study combined simultaneous electrochemical impedance spectroscopy (EIS) and <i>operando</i> electrochemical quartz crystal microbalance with dissipation monitoring (EQCM-D) are employed together with <i>in situ</i> gas analysis (OEMS) to study the influence of VC and FEC on the passivation process and the interphase properties at carbon-based anodes. In small quantities both additives reduce the initial interphase mass loading by 30 to 50 %, but only VC also effectively prevents continuous side reactions and improves anode passivation significantly. VC and FEC are both reduced at potentials above 1 V vs. Li<sup>+</sup>/Li in the first cycle and change the SEI composition which causes an increase of the SEI shear storage modulus by over one order of magnitude in both cases. As a consequence, the ion diffusion coefficient and conductivity in the interphase is also significantly affected. While small quantities of VC in the initial electrolyte increase the SEI conductivity, FEC decomposition products hinder charge transport through the SEI and thus increase overall anode impedance significantly. </div>

MUELLER COPPER 1100

Alloy Digest ◽  
1983 ◽  
Vol 32 (8) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Physical Properties ◽  
Tensile Properties ◽  
Oxygen Content ◽  
Heat Treating ◽  
Important Type ◽  
Cathode Copper ◽  
Electrical Industry ◽  
Electrical Conductors

Abstract MUELLER Copper 1100 is cathode copper remelted and cast with a controlled oxygen content. This copper is the most important type of copper available commercially. It is furnished in wrought form and is used widely by the electrical industry for electrical conductors. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Cu-461. Producer or source: Mueller Brass Company.

ChemInform Abstract: Effect of Alloying on Anode Passivation in the Ca/SOCl2 Battery.

ChemInform ◽  
2010 ◽  
Vol 24 (3) ◽  
pp. no-no
Author(s):  
S. B. DOWNEY ◽  
O. F. DEVEREUX
Keyword(s):  
Anode Passivation ◽  
Effect Of Alloying

The Effect of Grain Size and Cl-Concentration on the Passive Behavior of Cu in Borate Buffer Solution

2013 ◽  
Vol 785-786 ◽  
pp. 928-932 ◽  
Author(s):  
Qi Jun Zhong ◽  
Li Bin Yu ◽  
Yi Xiao ◽  
Yi Wang ◽  
Qiong Yu Zhou ◽  
...  
Keyword(s):  
Grain Size ◽  
Electrochemical Analysis ◽  
Borate Buffer ◽  
Borate Buffer Solution ◽  
Buffer Solution ◽  
Solution Ph ◽  
Passivation Film ◽  
Passive Behavior ◽  
Anode Passivation ◽  
Passivation Potential

Effect of grain size and Cl-concentration on corrosion behavior of Cu was investigated by using a series of electrochemical analysis in borate buffer solution (pH=8.40).The results indicated that in all cases, the Mott-Schottky plots of the passive films on the surface of Cu were linear with negative slop, and showed behavior of the p-type semiconductor.With the decrease of the grain size and the increase of anode passivation potential, the acceptor density (NA) of the passivation film on the surface of Cu was reducing. As the concentration of Cl-in the medium solution was heightening, the acceptor density (NA) of the passivation film on the surface of Cu was increasing.

Anode Passivation and Electrolyte Solvent Disproportionation: Mechanism of Ester Exchange Reaction in Lithium‐Ion Batteries

1997 ◽  
Vol 144 (6) ◽  
pp. 1944-1948 ◽  
Author(s):  
Esther S. Takeuchi ◽  
Hong Gan ◽  
Marcus Palazzo ◽  
Randolph A. Leising ◽  
Steven M. Davis
Keyword(s):  
Lithium Ion Batteries ◽  
Exchange Reaction ◽  
Lithium Ion ◽  
Ester Exchange ◽  
Anode Passivation ◽  
Ester Exchange Reaction

High-voltage helical hollow cathode copper ion laser

1984 ◽  
Vol 51 (6) ◽  
pp. 417-419 ◽  
Author(s):  
M. Grozeva ◽  
N. Sabotinov
Keyword(s):  
High Voltage ◽  
Hollow Cathode ◽  
Copper Ion ◽  
Cathode Copper ◽  
Ion Laser

Influence of VC and FEC Additives on Interphase Properties of Carbon in Li-Ion Cells Investigated by Combined EIS & EQCM-D

2020 ◽  
Author(s):  
Paul Kitz ◽  
Matthew Lacey ◽  
Petr Novák ◽  
Erik Berg
Keyword(s):  
Electrochemical Impedance ◽  
Solid Electrolyte Interphase ◽  
Electrochemical Quartz Crystal Microbalance ◽  
Gas Analysis ◽  
Side Reactions ◽  
Ion Diffusion ◽  
Battery Cell ◽  
Anode Passivation ◽  
Order Of Magnitude ◽  
Li Ion

<div>The electrolyte additives vinylene carbonate (VC) and fluoroethylene carbonate (FEC) are well known for increasing the lifetime of a Li-ion battery cell by supporting the formation of an effective solid electrolyte interphase (SEI) at the anode. In this study combined simultaneous electrochemical impedance spectroscopy (EIS) and <i>operando</i> electrochemical quartz crystal microbalance with dissipation monitoring (EQCM-D) are employed together with <i>in situ</i> gas analysis (OEMS) to study the influence of VC and FEC on the passivation process and the interphase properties at carbon-based anodes. In small quantities both additives reduce the initial interphase mass loading by 30 to 50 %, but only VC also effectively prevents continuous side reactions and improves anode passivation significantly. VC and FEC are both reduced at potentials above 1 V vs. Li<sup>+</sup>/Li in the first cycle and change the SEI composition which causes an increase of the SEI shear storage modulus by over one order of magnitude in both cases. As a consequence, the ion diffusion coefficient and conductivity in the interphase is also significantly affected. While small quantities of VC in the initial electrolyte increase the SEI conductivity, FEC decomposition products hinder charge transport through the SEI and thus increase overall anode impedance significantly. </div>

Assessing Water Footprint of Copper Production by Pyrometallurgy

2021 ◽  
Vol 1035 ◽  
pp. 1071-1077
Author(s):  
Zhen Lu Lei ◽  
Xian Zheng Gong ◽  
Yu Liu ◽  
Xiao Qing Li ◽  
Shui Long Chen
Keyword(s):  
Environmental Impact ◽  
Production Process ◽  
Water Resource ◽  
Water Footprint ◽  
Assessment Method ◽  
Copper Production ◽  
Blue Water ◽  
Cathode Copper ◽  
Water Resource Utilization ◽  
Production Characteristics

As an important tool for water resource environmental impact assessment, the application of water footprint assessment method in copper production process is conducive to more accurate assessment of water resource environmental impact in copper production process. The water footprint assessment method released by the Water Footprint Network was used to study the water footprint of the production process of cathode copper products produced by pyrometallurgy. It was found that the water footprint of 1 ton of copper produced by pyrometallurgy was 242m3, of which the blue water footprint accounted for 60%, the grey water footprint accounted for 40%. The direct water footprint accounted for 67% and the indirect water footprint accounted for 33%. The characteristics of water footprint contribution at each process were compared, which provided data support and reference for enterprises to better understand the water resource environmental impact of copper by pyrometallurgy and to choose the water resource utilization mode with their own production characteristics.

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