negative electrode alloys

Liquid Metal Alloys as Self-Healing Negative Electrodes ...

Liquid Metal Alloys as Self-Healing Negative Electrodes for Lithium Ion Batteries Article (PDF Available) in Journal of The Electrochemical Society 158(8):A845-A849 · August 2011 with 595 Reads

US Patent for Negative electrode composition Patent ...

A secondary electrochemical cell and a negative electrode composition for use therewith comprising a positive electrode containing an active material of a chalcogen or a transiton metal chalcogenide, a negative electrode containing a lithium-aluminum alloy and an amount of a ternary alloy sufficient to provide at least about 5 percent overcharge capacity relative to a negative electrode solely ...

US5498495A - Alloy for negative electrode of lithium ...

In addition, a sheet-shaped negative electrode alloy may be bonded to a collector sheet by a suitable method such as brazing, soldering, ultrasonic welding and spot welding, whereby a laminate of a negative electrode alloy sheet and a collector sheet is formed.

Low Alloy Steel | Electrodes & Alloys | Selectrode Industries

The low alloy steel E9018-B3 is an outstanding welding electrode for welding higher strength piping, castings and forgings. The low alloy steel E9018-B3 is an outstanding welding electrode for welding higher strength piping, castings and forgings. HOME; ... Electrode positive, work negative (DCEP) ...

Si-Fe-based Alloy Negative Electrode Materials with ...

Si-Fe-based Alloy Negative Electrode Materials with Extraordinary High Thermal Stability Yijia Liua, Michael A. Charltona, M.N. Obrovacb a Department of Chemistry, Dalhousie University, b Department of Physics and Atmospheric Science, Dalhousie University, Halifax, NS, B3H 4R2 E-mail: [email protected] Nanostructured Si-Fe-based alloys for high energy density Li-ion negative electrodes were

Nickel–metal hydride battery - Wikipedia

A nickel metal hydride battery, abbreviated NiMH or Ni–MH, is a type of rechargeable battery.The chemical reaction at the positive electrode is similar to that of the nickel–cadmium cell (NiCd), with both using nickel oxide hydroxide (NiOOH). However, the negative electrodes use a hydrogen-absorbing alloy instead of cadmium.A NiMH battery can have two to three times the capacity of an ...

(PDF) Elastic softening of alloy negative electrodes for ...

Here, the elastic constants of single crystal structures. However, the y ¼ 0 and y ¼ 1 represents the pure polycrystalline M phase and Na realistic microstructure of negative electrode alloys as observed in phase, respectively.

US Patent for Negative electrode and aluminum air cell ...

Feb 18, 2011· There is provided a negative electrode comprising an aluminum alloy, wherein the alloy has a magnesium content of 0.0001% by weight or higher and 8% by weight or lower, the alloy satisfies at least one condition selected from the group consisting of the following (A) and (B): (A) an iron content is 0.0001% by weight or higher and 0.03% by weight or lower, and (B) a silicon content is 0.0001% ...

Alloy Negative Electrodes for Li-Ion Batteries - Chemical ...

Alloy Negative Electrodes for Li-Ion Batteries M. N. Obrovac * † and V. L. Chevrier ‡ † Department of Chemistry, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada

Si-alloy negative electrodes for Li-ion batteries ...

The use of Si-alloys as negative electrode materials in Li-ion cells can increase their energy density by as much as 20%, compared to conventional graphite electrodes. However, several technical challenges related with the massive volume expansion associated with Si-alloy …

Stationary Lead-Acid Batteries With Selenium Alloys

contamination of the negative electrode. In this way a self-accelerating process originates causing the strong effect of antimony content shown in Fig.8. The corrosion test at constant cell voltage therefore does not compare pure corrosion rates, but rather is a mixture of corrosion and potential shift by antimony contamination of the negative ...

Low energy milling method, low crystallinity alloy, and ...

A secondary electrochemical cell and a negative electrode composition for use therewith comprising a positive electrode containing an active material of a chalcogen or a transiton metal chalcogenide, a negative electrode containing a lithium-aluminum alloy and an amount of a ternary alloy sufficient to provide at least about 5 percent overcharge capacity relative to a negative electrode solely ...

Li-Rich Li-Si Alloy As A Lithium-Containing Negative ...

Jan 28, 2015· We then examine the feasibility of the Li-rich Li-Si alloy as a Li-containing negative electrode by combining it with a Li-free positive electrode.

Negative Electrodes Based on the Fe Zn Alloy essentially ...

Negative Electrodes Based on the Fe xZn 1-x Alloy System L.A. MacEachern a, R.A. Dunlap a,b and M.N. Obrovac a,b,c a - Dept. of Physics and Atmospheric Science, Dalhousie University, Halifax, N.S. B3H 4R2 Canada

Hydrogen Storage Alloys: With Rare Earth-Mg-Ni Based ...

Hydrogen Storage Alloys: With Rare Earth-Mg-Ni Based Negative Electrodes Shumin, Yuan Li, Baozhong Liu The book presents current research progress on hydrogen storage alloys, with a special focus on their applications in batteries.

Negative Electrode for Lithium Battery in Room …

with a metallic alloy that prevents the intercalation of other organic ions that causes the exfoliation problem. The second approach is the use of metallic alloys instead of graphite as the material for negative electrode material. From the CV studies of the graphite electrodes in acidic RTMS (a mole composition of 66.7% AlCl3 and

Liquid metal alloy electrode boosts potential of sodium ...

Sodium is a solid at standard temperature and pressure, but it has a very low melting point of only around 98° C (208° F). In NBBs, sodium is used in its liquid state as the negative electrode.

Group IVA Element (Si, Ge, Sn)‐Based Alloying/Dealloying ...

Oct 10, 2017· Group IVA Element (Si, Ge, Sn)‐Based Alloying/Dealloying Anodes as Negative Electrodes for Full‐Cell Lithium‐Ion Batteries. Dequan Liu. School of Physical Science and Technology and Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou, 730000 China ..., Journal of Alloys and ...

Hydrogen Storage Alloys with RE–Mg–Ni Based Negative ...

Hydrogen Storage Alloys with RE–Mg–Ni Based Negative Electrodes. Edited by Shumin Han, Yuan Li and Baozhong Liu. De Gruyter, 2017. Hardcover, Pp.

Negative electrode composition (Patent) | DOepatents

Jan 01, 1982· A secondary electrochemical cell and a negative electrode composition for use therewith comprising a positive electrode containing an active material of a chalcogen or a transiton metal chalcogenide, a negative electrode containing a lithium-aluminum alloy and an amount of a ternary alloy sufficient to provide at least about 5 percent overcharge capacity relative to a negative electrode …

Hydrogen-absorbing alloy electrode, alkaline storage ...

Conductivity of a negative electrode is improved in an alkaline storage battery that uses as its negative electrode a hydrogen-absorbing alloy electrode employing a hydrogen-absorbing alloy containing at least a rare-earth element, nickel, magnesium, and aluminum, to sufficiently enhance the cycle life of the alkaline storage battery. The negative electrode of the alkaline storage battery uses ...

Welding of Aluminum Alloys - Total Materia

In general, the non-heat-treatable aluminum alloys can be welded with a filler alloy of the same basic composition as the base alloy. The heat-treatable aluminum alloys are somewhat more metallurgically complex and more sensitive to "hot short" cracking, which results from heat - affected zone (HAZ) liquidation during the welding operation.

Kinetic and thermodynamic studies of ... - SpringerLink

Nov 19, 2013· This paper reviews the present performances of intermetallic compound families as materials for negative electrodes of rechargeable Ni/MH batteries. The performance of the metal-hydride electrode is determined by both the kinetics of the processes occurring at the metal/solution interface and the rate of hydrogen diffusion within the bulk of ...

Lithium alloy negative electrodes | Request PDF

However, the high packing density of metallic lithium and lithium alloys makes it attractive to re-consider the use of lithium alloy negative electrodes for thin film batteries, where the volume ...

Negative electrode materials - Jeff Dahn Research Group ...

As such Si alloy materials are of interest for their high volumetric capacity (≈3 times that of the widely used graphite material). Li-ion cells that contain Si-based materials typically show rapid capacity fade (amount of Li exchanged from the positive electrode to the negative electrode …

Gas tungsten arc welding - Wikipedia

Gas tungsten arc welding (GTAW), also known as tungsten inert gas (TIG) welding, is an arc welding process that uses a non-consumable tungsten electrode to produce the weld.The weld area and electrode is protected from oxidation or other atmospheric contamination by an inert shielding gas (argon or helium), and a filler metal is normally used, though some welds, known as autogenous welds, do ...

First-principles calculations and experimental studies of ...

Mar 26, 2011· Abstract. The physical characters and electrochemical properties of various phases in a Sn-Zn electrode, such as formation energy, plateau potential, specific capacity, as well as volume expansion, were calculated by the first-principles plane-wave pseudo-potential method based on the density functional theory.

EP2506348A1 - Si ALLOY NEGATIVE ELECTRODE ACTIVE MATERIAL ...

[Problem] Provided is a negative electrode active material for an electric device which exhibits a well-balanced property of maintaining a high cycle property and attaining a high initial capacity. [Technical solution] The negative electrode active material for an electric device comprising an alloy having a composition formula Si x Zn y Al z (where each of x, y, and z represents amass percent ...

PNNL: News - 'Wetting' a battery's appetite for renewable ...

New electrode offers different take. Lu and his PNNL colleagues took an entirely different approach to the wettability problem: modifying the negative electrode. Instead of using pure sodium, they experimented with sodium alloys, or sodium blended with other metals.

Welding of Aluminum Alloys - cdn.intechopen.com

Welding of Aluminum Alloys 67 It is possible to use Direct Current (DC) or Alternating Current (AC) to weld by GTAW. In the case of DC, we can use direct polarity (electrode negative, DCEN) or reverse polarity (positive electrode, DCEP), Figure 6, sh ows the polarity effect on the weld. Direct polarity is the most commonly employed in GTAW.

Li-Rich Li-Si Alloy As A Lithium-Containing Negative ...

Though the lithium-free materials need to be combined with lithium-containing negative electrode materials, the latter has not been well developed yet. In this work, the feasibility of Li-rich Li-Si alloy is examined as a lithium-containing negative electrode material.

Challenges for Na-ion Negative Electrodes

negative electrodes. All that is needed is the volume occupied by Na atoms and the average voltages of Na negative electrodes. Few ex-perimental studies of Na alloy negative electrodes exist in the litera-ture and significant effort would be required to test several different Na alloys as negative electrodes. However, the ability to calculate