Mechanically Milled Fe-Si-Zn Alloys as Negative Electrodes …
Abstract. Fe-Si-Zn alloys prepared by ball milling were investigated as negative electrodes for Li-ion batteries. X-ray diffraction and room temperature 57Fe Möss measurements were used to ...
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Phase structures and electrochemical properties of …
During the exploitation of Ni/MH batteries, novel negative electrode materials have always been the focus. In general, the development of the negative electrode materials for Ni/MH batteries has experienced three generations. The representative for the first generation is rare-earth-based AB 5-type alloys. This alloy …
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Liquid metal alloys as self-healing negative electrodes for …
Liquid metal alloys as self-healing negative electrodes for lithium ion batteries. Journal of the Electrochemical Society . 2011 Aug;158(8):A845-A849. doi: 10.1149/1.3591094 Powered by Pure, Scopus & Elsevier Fingerprint Engine™
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NixCu6−xSn5 alloys as negative electrode materials for …
The electrodes were cut into sheets 1 cm 2 in area, vacuum-dried at 100 °C for 24 h, and weighed. The typical weight load of active material is about 5 mg cm −2. The battery performance of alloy was characterized in CR2032-type coin cell. Metallic lithium was used as the negative electrode.
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Elastic softening of alloy negative electrodes for Na-ion …
However, the realistic microstructure of negative electrode alloys as observed in experiments is polycrystalline with numerous single crystal grains oriented randomly with respect to each other [29]. It is therefore important to relate the single crystal elastic constants obtained from our DFT calculations ( Table 2 ) to the aggregate elastic ...
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Kinetic and thermodynamic studies of hydrogen …
The charging process at the negative electrode is represente d by the follow ing equati ons in more deta il: H 2 O þ e − ⇄ H ad ; s þ OH − charge tran sfer ðÞ
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MIT Open Access Articles Challenges for Na-ion …
Na alloys as negative electrode materials have yet to be extensively studied. If the evolution of Li-ion and Na-ion batteries follow a sim-ilar path, Na alloys are likely to become a field of growing interest for Na-ion batteries. This paper will seek to answer the question of whether hard car-
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Negative Electrodes in Lithium Systems | SpringerLink
Negative electrodes currently employed on the negative side of lithium cells involving a solid solution of lithium in one of the forms of carbon. Lithium cells that operate at …
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Negative Electrodes in Lithium Systems | SpringerLink
The first use of lithium alloys as negative electrodes in commercial batteries to operate at ambient temperatures was the employment of Wood's metal alloys in lithium-conducting button type cells by Matsushita in Japan. Development work on the use of these alloys started in 1983 ...
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Rare earth–Mg–Ni-based hydrogen storage alloys as negative electrode
The Ni/MH battery was discovered in the 1970s [8], [9] and introduced into market in the 1990s [10]. It is a new type of green rechargeable battery with a nickel hydroxide electrode as its positive electrode, a hydrogen storage alloy electrode as its negative electrode and a potassium hydroxide (KOH) solution as its electrolyte [6].
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High entropy alloys as electrode material for
Despite using various combinations of positive and negative electrode materials in the supercapacitor devices, the resulting conductivity, ... If the enthalpy of mixing results to a strong, large negative value, thus, the alloys form intermetallic compounds rather than solid solutions [94, 95]. If the enthalpy of mixing is weakly …
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Isotropic Volume Expansion of Particles of Amorphous Metallic Alloys …
Metals and metal alloys, often composed of carbon group elements like silicon and tin, are attractive candidates to replace or augment graphite as the negative-electrode active material in lithium-ion cells because they offer an up to ∼ 10-fold increase in lithium storage per unit mass of host material or an up to -fold increase in lithium …
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Thermodynamic Studies of Li‐Ge Alloys: Application to Negative …
The use of germanium as an alloying agent for lithium negative electrodes in molten salt cells was studied in a cell of the type. ... The Gibbs free energies of formation for these alloys were determined by integrating the coulometric titration curve to the appropriate lithium composition. EMF temperature dependencies of the four most …
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Si(CO) y Negative Electrodes for Li-Ion Batteries
Abstract. Si (CO) y (0 ≤ y ≤ 0.43) alloys were synthesized by reactive gas milling silicon in CO 2 at room temperature. Silicon reacts with CO 2 rapidly during milling, incorporating C and O in a 1:1 ratio to form alloys …
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Aluminum foil negative electrodes with multiphase
Alloy-negative electrodes such as silicon have been investigated for decades for use in Li-ion batteries 6, 7, 8, 9, and silicon is currently being incorporated in small fractions to boost...
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Flake Cu-Sn Alloys as Negative Electrode Materials for …
The battery performance of Cu-Sn composite alloys, and spinel was first evaluated using a half-cell and characterized in CR2032-type hardware. Metallic lithium was used as a negative electrode. The electrolyte solution was 1 M -ethylene carbonate (EC)/dimethyl carbonate (DMC) (1:2 in volume). Lithium insertion into an alloy electrode …
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Lithium alloy negative electrodes
With only a few exceptions, elemental lithium is now generally replaced in the negative electrode of rechargeable consumer batteries by materials with a lower lithium …
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SiC-Free Carbon–Silicon Alloys Prepared by Delithiation as …
Carbon–silicon alloys in different stoichiometric ratios are synthesized by delithiation of carbon–lithium–silicon ternary alloys with ethanol, followed by washing with HCl and distilled water. The as-prepared carbon–silicon materials are air- and water-stable. In contrast to mechanically milled or sputtered C–Si alloys studied in the past, the …
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Metal hydrides as negative electrode materials for Ni–MH …
Ternary La–Mg–Ni hydrogen storage alloys with composition La 1−x Mg x Ni y ( x = 0.2–0.4, y = 3–4) have attracted increasing interest as negative electrode materials in Ni–metal hydride (MH) batteries. The electrochemical discharge capacity for such alloys reaches more than 400 mAh g −1, i.e., 25 % greater than that of the ...
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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 lithiation have impeded their implementation. A …
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(PDF) Liquid Metal Alloys as Self-Healing …
A lithium-ion cell based on a flaked Cu-Sn microcomposite alloy negative electrode and a 5 V LiNixMn2-xO4 positive electrode was assembled. The cell showed an average working voltage at 4.0 V and ...
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Alloy Negative Electrodes for Li-Ion Batteries
Alloy Negative Electrodes for Li-Ion Batteries | Chemical Reviews. Cite This:Chem. Rev. 2014, 114, 23, 11444-11502. Review. …
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Behavior of some binary lithium alloys as negative electrodes …
@article{osti_5690842, title = {Behavior of some binary lithium alloys as negative electrodes in organic solvent-based electrolytes}, author = {Wang, J and Raistrick, I D and Huggins, R A}, abstractNote = {In an attempt to overcome problems associated with the reversible lithium electrode in organic solvent-based electrolytes, the electrochemical …
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Electrochemical Behavior of Magnesium Alloys in Alkali
Even though Mg 2 Sn alloy shows considerably superior character to the other alloys examined in the present study, its electrode potential is still high as the negative electrodes and comparable to the redox potential of the Chevrel compounds. 7 Thus, in the future, to realize the magnesium battery with the use of the TFSA-based …
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Liquid Metal Alloys as Self-Healing Negative …
In this paper, we demonstrate a strategy of achieving high capacity and durability using low-melting point, lithium active, liquid metals (LMs) as LIB negative …
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Alloy negative electrodes for lithium batteries …
Alloy Negative Electrodes For Lithium Batteries Formed In-Situ From Oxides. R.A. Huggins. Technical Faculty, Christian-Albrechts-University. D-24143 Kiel, Germany. …
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Progress of hydrogen storage alloys for Ni-MH
A Ni-MH cell is composed of a Ni(OH) 2 positive electrode, and a hydrogen storage (M) alloy negative electrode in aqueous solution of KOH electrolyte [35]. The hydrogen storage alloys are ...
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NixSi1-x Alloys Prepared by Mechanical Milling as …
1-x Alloys Prepared by Mechanical Milling as Negative Electrode Materials for Lithium Ion Batteries Zhijia Du,a,∗ S. N. Ellis,b R. A. Dunlap,a,c,d and M. N. Obrovaca,b,c,∗∗,z aDepartment of Physics and Atmospheric Science, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada
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Electrochemical performance of Mg-Sn alloy anodes for …
(a) Cyclic voltammetry curves of Mg and Mg-Sn alloys in the 3-electrode cell (0.4 mV/s, 0.6 V to -0.4 V vs Mg reference electrode). (b) Galvanostatic stripping, (c) Cathodic current during the first negative scan in CV test, and (d) plating of Mg and Mg-Sn alloys at a current density of 0.05 mA/cm 2, vs Mg in electrolyte.
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Lithium alloy negative electrodes formed from convertible …
The first use of lithium alloys as negative electrodes in commercial batteries to operate at ambient temperatures was the employment of Wood's metal alloys in lithium-conducting button type cells by Matsushita in Japan. Development work on the use of these alloys started in 1983 [9], and they became commercially available somewhat later.
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