Structure and properties of cathode
Effects of Lithium Content on Structure and Electrochemical Properties of Li-rich Cathode Material Li1.2+xMn0.54Ni0.13Co0.13O2
... electrochemical properties of Li-rich cathode ...crystalline structure and electrochemical properties are thoroughly investigated by Rietveld refinement, characterization and electrochemical ...
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Influence of Complexing Agents on the Structure and Electrochemical Properties of LiNi0.80Co0.15Al0.05O2 Cathode Synthesized by Sol-Gel Method: a Comparative Study
... electrochemical properties of different Li-ion battery LiNi ...2 cathode materials (denoted as NCA; being prepared by the sol-gel method using EDTA, glycine and citric acid as complexing agents) have been ...
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Structure, Morphology and Electrochemical Properties of Li[Li0.2Co0.4Mn0.4]O2 Cathode Material Synthesized by a Simple Hydrothermal Method
... Received: 31 December 2012 / Accepted: 18 December 2012 / Published: 1 February 2013 The nano-sized material Li[Li 0.2 Co 0.4 Mn 0.4 ]O 2 was synthesized by a simple hydrothermal method. X- ray diffraction results showed ...
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A Method for Improving the Electrochemical Properties of a Li1.2Ni0.15Co0.1Mn0.55O2 Cathode Material
... to the R-3m space group. It can be observed from Figure 2 that the two samples have distinct splitting of the (018)/(110) peaks, indicating that the synthesized materials have a good layered structure [17]. The ...
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The Influence of Solvents and Salts on the Properties of High-Voltage Cathode Materials
... materials with face-centered spinel structure therefore known as disordered. The prepared material was then mixed into a mixture consisting of NMP (N-Methyl-2-pyrrolidon) (solvent), PVDF (Polyvinylidenfluorid) ...
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The Electrochemical Properties of Li2NixMn1-xSiO4 Cathode Material for Lithium Batteries
... The structure of prepared samples of Li 2 Ni x Mn 1-x SiO 4 is characterized by ...crystal structure of the samples is orthorhombic having space group Pmn2 1 ...
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Effect of Drying Time on Electrochemical Properties of Li1.2Mn0.54Ni0.13Co0.13O2 Cathode Material
... Figure 9. AC impedance of samples synthesized with different drying times. 4. CONCLUSIONS In this work, a material was prepared by a sol-gel method by controlling different drying times. XRD showed that the drying time ...
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Study on the Properties of LiMn2O4/ Li1.5Al0.5Ge1.5(PO4)3 Composite Cathode Materials
... crystal structure caused by Jahn-Teller effect during charge-discharge, the LiPF 6 electrolyte is decomposed into corroded LMO material and manganese ions are easily dissolved in electrolyte, which leads to ...
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Effects of Citric Acid Treatment on the Electrochemical Properties of Li1.2Mn0.54Ni0.13Co0.13O2 Cathode Material
... electrochemical properties of cathode materials used in lithium batteries is ...spinel-like structure on the cathode surface, as citric acid removes some of the Li 2 O in the Li 2 MnO 3 ...the ...
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CaFe2O4-type Structure NaRu2O4: a Novel Cathode Material for Li-ion Batteries
... Lithium ion insertion/extraction properties of the NaRu 2 O 4 samples were investigated by cyclic voltammetry (CV) and galvanostatic charge/discharge cycling. Fig. 3 shows typical CV curves of the NaRu 2 O 4 ...
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Accelerating Cathode Material Discovery through Ab Initio Random Structure Searching
... various properties of cathode materials 10 , such as the voltages 11,12 , Li-diffusion barriers 13 , disordering 7 , and anionic redox 14 ...crystal structure of the material of the interest must be ...
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Effective Enhancement of the Electrochemical Properties for LiFePO4/C Cathode Materials by Lanthanum Doping
... material’s cathode structure and electrochemical properties were investigated using an X-ray diffraction (XRD), Fourier transform infrared spectroscopy(FTIR), scanning electron microscopy (SEM), ...
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Electrochemical Properties of Nanosized Li2MnO3·Li(Ni0.8Co0.15Al0.05)O2 Composite Cathode Powders
... Received: 9 January 2013 / Accepted: 6 February 2013 / Published: 1 March 2013 Nanometer-sized LiNi 0.8 Co 0.15 Al 0.05 O 2 and 0.6Li 2 MnO 3 ·0.4LiNi 0.8 Co 0.15 Al 0.05 O 2 powders are prepared by high-temperature ...
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Mn and V co-doped Li2FeSiO4 Cathode Materials with Enhanced Electrochemical Properties
... Doping is an effective way to improve the electrochemical properties of Li 2 FeSiO 4 . Numerous studies have reported that the introduction of foreign atoms into unit cells should produce lattice defects, further ...
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Effect of Ag Addition on the Properties of Ba0.5Sr0.5Co0.8Fe0.2O3-δ–Sm0.2Ce0.8O1.9 Composite Cathode Powder
... based. This step was carried out to ensure the sample is in the conductive phase and ready to be run with electron radiation and capture the image. Morphology of the sample structure can be observed by using ...
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The Preparation and Properties Research of Lithium-rich Li[Li0.2Mn0.54Ni0.13Co0.13]O2 Battery Cathode Materials
... The precursor mixtures are sintered at 700℃, 750℃, 800℃, 850℃ and 900℃ respectively, and the sintering temperature is optimized. Figure 1 shows the XRD spectra of samples with different sintering temperatures. It can be ...
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Effects of Zn Doping Amount on the Electrochemical Properties of LiNi0.5Mn1.5O4 Lithium-Ion Cathode Materials
... Meanwhile, all samples show lower band intensity at 581cm -1 than that at 621cm -1 , suggesting that the products have disorder space group Fd-3m[21]. Therefore, the conclusion can be drawn that all the samples contain ...
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Electrochemical and Physical Properties of Layered-Spinel Composite Cathode Powders Prepared by Spray Pyrolysis
... capacity below 4.5 V due to the Mn 3+/4+ redox reaction of the Li 2 MnO 3 component was shown in Fig. 4 (a). The Li 2 MnO 3 component prepared by spray pyrolysis also had a layered-spinel composite structure. The ...
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A lithium–sulfur full cell with ultralong cycle life: influence of cathode structure and polysulfide additive
... Advantageous properties of the Li–S system are the abundance, low cost and eco-friendliness of sulfur as well as an intrinsic overcharge protection. These are immense economic and ecological benets over ...
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Effect of Fe Substitution on the Structural, Electrical and Dielectric Properties of La0 70Ca0 30MnO3 Cathode for SOFCs
... IV. CONCLUSIONS (La 0.70 Ca 0.30 )(Fe x Mn 1-x )O 3 where x = 0.10 - 0.40 sample show a orthorhombic perovskite structure with Pnma space group. Solid state reaction method was used to prepare the samples. SEM ...
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