Publications on the project |
102 Forming a Stable Amorphous Phase in the Carbon-Coated Silicon upon Deep Electrochemical Lithiation (in Russian) |
Authors: | S.P. Kuksenko, I.O. Kovalenko, Yu.A. Tarasenko, M.T. Kartel' | |
Summary: | Investigation of electrochemical behaviour of the micro- and nanosilicon powders, coated with carbon by physical (mechanical milling) and chemical (pyrolysis) methods, as anodes for Li-ion batteries have been carried out. Unique role of carbon in forming a stable (noncrystalized) amorphous phase in silicon outer region upon deep lithiation has been revealed. The amorphous phase facilitates to enhancing the capacity retention and decreasing the accumulated irreversible capacity of the silicon electrodes. Carbon-coated nanosilicon composite has the reversible capacity 2029 mAh/g, first cycle efficiency 81.3% and capacity retention 90.8% after 100 cycles in the mode: cc/cv (C/2, 5 mV, C/200), cc(C/2, 1.0 V). | |
Keywords: | lithium-ion batteries, anode materials, nanosilicon, composites, lithiation-delithiation | |
Edition: | Chemistry, Physics & Technology of Surface | | | 2010,
57-71,Russian |
102 Cycling Parameters of Silicon Anode Materials for Lithium-Ion Batteries |
Authors: | S.P. Kuksenko | |
Summary: | A new parameter, "accumulated irreversible capacity", is suggested for assessing the suitability of a material as an active component for the anode of lithium-ion batteries. A comprehensive analysis of cycling parameters of silicon nanomaterials is made and ways for their improvement are considered. | |
Keywords: | lithium-ion batteries, nanosilicon, fluoroethylene carbonate, carboxymethylcellulose, reversible capacity, accumulated irreversible capacity | |
Edition: | Russian Journal of Applied Chemistry | | | 2010,
589-595, |
102 Cycling Parameters of MAG Graphite as Anode Material for Lithium-Ion Batteries |
Authors: | S.P. Kuksenko | |
Summary: | Integrated analysis of the cycling parameters (reversible capacity, Coulombic efficiency, irreversible loss of cycle capacity, accumulated irreversible capacity, and retention of reversible capacity) of synthetic graphite of MAG brand as an active material for the negative electrode of lithium-ion batteries was made. | |
Keywords: | lithium-ion batteries, anode, synthetic graphite, carboxymethylcellulose, reversible capacity, accumulated irreversible capacity | |
Edition: | Russian Journal of Applied Chemistry | | | 2010,
596-600, |
102 Silicon Electrodes for Lithium-Ion Batteries: Ways of Cycling Parameters Improving (in Russian) |
Authors: | S.P. Kuksenko | |
Summary: | Experimentally proved the possibility of a significant increase in the parameters of the cycling of silicon nanopowders coated with carbon and studied the nature of some of the processes occurring in the bulk and on the surface of the silicon anode materials. | |
Keywords: | lithium-ion batteries, silicon nanopowders, carbon coating, fluoroethylene carbonate, vinylene carbonate, ethylene sulfite, carboxymethylcellulose, reversible capacity, accumulated irreversible capacity | |
Edition: | Fundamental Problems of Energy Conversion in Lithium Electrochemical Systems, M.S. Pleschakov, Ed., Novocherkassk, 2010, 363 p. | | | 2010,
147-151,Russian |
102 Synthesis of a Silicon-Graphite Composite for the Hybrid Electrode of Lithium-Ion Batteries |
Authors: | S.P. Kuksenko, I.O. Kovalenko | |
Summary: | Comprehensive analysis was made of the cycling parameters (reversible capacity, Coulombic efficiency of cycles, accumulated irreversible capacity, and capacity retention) of a hybrid electrode based on a mixture of MAG synthetic graphite and silicon-graphite composite produced by mechanical grinding. | |
Keywords: | lithium-ion batteries, anode materials, silicon-graphite composite, fluoroethylene carbonate, vinylene carbonate, ethylene sulfite, carboxymethylcellulose, reversible capacity, accumulated irreversible capacity | |
Edition: | Russian Journal of Applied Chemistry | | | 2010,
1672-1676, |
102 Silicon Nanopowder as Active Material for Hybrid Electrodes of Lithium-Ion Batteries |
Authors: | S.P. Kuksenko, I.O. Kovalenko | |
Summary: | Cycling parameters (reversible capacity, first-cycle Coulombic efficiency, accumulated irreversible capacity, and capacity retention) of hybrid electrodes based on mechanical mixtures of a silicon nanopowder with KS6 and MAG synthetic graphites and binders of varied nature were subjected to an integrated analysis in comparison with graphite electrodes. | |
Keywords: | lithium-ion batteries, hybrid electrodes, silicon nanopowder, synthetic graphites, binders, reversible capacity, accumulated irreversible capacity, capacity retention | |
Edition: | Russian Journal of Applied Chemistry | | | 2011,
1107-1115, |
102 Silicon-Carbon Nanocomposite Hybrid Electrodes for Li-Ion Batteries (in Russian) |
Authors: | S.P. Kuksenko, I.O. Kovalenko, Yu.A. Tarasenko, М.T. Kartel' | |
Summary: | The reversible capacity of 434 Ah/kg, 95.6% capacity retention, high Coulombic efficiency (99.86% to 25 cycles), and as a consequence, a relatively low accumulated irreversible capacity 80.6 Ah/kg achieved for a hybrid electrode based on mechanical mixture (95: 5 wt.%) MAG graphite and silicon-carbon nanocomposite after 102 deep charge - discharge cycles at a current of C/2 in 1M solution of LiPF6/FEC+EMC (30:70 vol.%) added with VC and ES. | |
Keywords: | lithium-ion batteries, hybrid electrodes, silicon-carbon nanocomposite, fluoroethylene carbonate, vinylene carbonate, ethylene sulfite, carboxymethylcellulose, reversible capacity, accumulated irreversible capacity | |
Edition: | The Chemistry and Chemical engineering | | | 2011,
299-303,Russian |
102 Molten salts synthesis and electrochemical properties of LiFePO4 nanopowder (in Ukrainian) |
Authors: | S.M. Malovanyy, E.V. Panov | |
Summary: | Pure, nano-sized LiFePO4 and carbon-coated LiFePO4 (LiFePO4/C) positive electrode material are synthesized by new method - molten salts interaction. The process of electrochemical intercalation / deintercalation of lithium cation into the material is studied. It is proved that cathode made of LiFePO4 nanopowder hfs high capacity and high kinetics properties. | |
Keywords: | Li-ion battery, lithium iron phosphate, molten salt | |
Edition: | The Chemistry and Chemical engineering | | | 2011,
47-50,Ukrainian |
102 Electrochemical properties of conducting structures of iron subgroup phosphates (in Russian) |
Authors: | E.V. Panov, S.M. Malyovanyi, Yu. A. Tarasenko, N.T. Kartel | |
Summary: | The data, obtained in resent decade, on cathode materials based on lithiated iron subgroup phosphates are analyzed. Procedures for the synthesis of conducting phosphates with olivine structure and methods of increasing charge and the stability of the charge-discharge characteristics of cathodic material are discussed. | |
Keywords: | iron subgroup phosphates, synthesis, properties, cathodic material | |
Edition: | The Chemistry and Chemical engineering | | | 2011,
111-114,Russian |
102 Electrochemical Investigations and Quantum Chemical Calculations of the System SinLim (in Russian) |
Authors: | S.P. Kuksenko, V.S. Kuts, Yu.A. Tarasenko, M.T. Kartel | |
Summary: | Effective (but impracticable in the industrial lithium-ion batteries) ways to improve the cycling parameters of Si-electrodes are high end charge potentials or high charge rates, i.e. reducing the time spent at low electrodepotentials vs. Li+/Li0. These methods are widely used in academic researches, without regard to the practical
applicability of the results. We have shown experimentally that by suppressing the crystallization of a-SiLix in Si4Li15 and by stimulating formation of amorphous or nanostructured states of lithium – silicon alloys one can significantly improve the electrochemical parameters of silicon electrodes of lithium-ion batteries in cycling mode usually applied to real batteries. Peculiarities of the behavior of electrochemical system Si/Li have been substantiated by the results of quantum-chemical calculations of cluster models for SinLim alloy as dependent on the Si : Li ratio. Thus, the spatial and electronic structure of nanoclusters Sin (n = 2–16) and SinLim (n = 4, 8, 12, 16; m = 2–54) have been
examined theoretically. | |
Keywords: | | |
Edition: | Chemistry, Physics & Technology of Surface | | | 2011,
221-228,Russian |
102 Synthesis and properties of cathode material, lithiated iron phosphate, for lithium-ion batteries (in Russian) |
Authors: | E.V. Panov, S.M. Malyovanyi, Yu.A. Tarasenko, N.T. Kartel | |
Summary: | Possibilities of changing the electrochemical properties of a cathode material (LiFePO4) by changing methods and conditions for its synthesis are shown. The optimal methods for the preparation of the nanocomposite LiFePO4 with conducting carbon (mechanical mixture of ingredients or coating on LiFePO4 grains) and ways of
improving the reversibility of the electrode process (peaks on cyclic voltammograms 3,3/3,5 V) and cathode cycling stability, achieving good charge characteristics (up to 150 mAh/g) by doping LiFePO4/C composite with transition metal (Mn, Cr, Ni, Zn) cations and Cl– anions are discussed. | |
Keywords: | LiFePO4/C nanocomposite, synthesis and doping with transition metal cations and Cl– anions, properties and cathode characteristics | |
Edition: | Kharkov University Bulletin. Chemical Series | | | 2012,
274-281,Russian |
102 Aluminum Foil as Anode Material for Lithium–Ion Batteries: Effect of Electrolyte Compositions on Cycling Parameters |
Authors: | S.P. Kuksenko | |
Summary: | Aluminum is used as an example to demonstrate the possibility of spatial stabilization of alloy–forming electrodes of lithium–ion batteries using target formation on their surface of a thin compact inorganic layer and elastic organopolymer coating of products of electroreduction of electrolyte components for improvement of capacity retention and suppression of processes corresponding to irreversible capacity. It is suggested to use aluminum foil as a convenient material and the general approach can be employed as a methodological technique for accelerated composition of an acceptable electrolyte formula for electrodes containing other elements forming alloys with lithium (in particular, silicon and tin). | |
Keywords: | lithium–ion battery, anode, aluminum, electrolyte, fluoroethylene carbonate, ethylmethyl carbonate, vinylene carbonate, ethylene sulfite | |
Edition: | Russian Journal of Electrochemistry | | | 2013,
73-82, |
102 Silicon-Containing Anodes with Low Accumulated Irreversible Capacity for Lithium–Ion Batteries |
Authors: | S.P. Kuksenko | |
Summary: | Within the framework of the novel strategy of the arrangement of silicon particles in a rigid matrix framework, hybrid electrodes were fabricated from mixtures of synthetic graphite with small additions of nanosilicon/solid carbon and microsilicon, natural graphite/solid carbon composites. The electrode cycling parameters achieved (high loading capacity and low accumulated irreversible capacity) are due to high density of the electrodes and formation of stable electrode|electrolyte interface. | |
Keywords: | lithium-ion batteries, hybride electrodes, synthetic graphite, hard carbon, nanocomposites, nanosilicon, functional electrolytes, capacity loading, accumulated irreversible capacity | |
Edition: | Russian Journal of Applied Chemistry | | | 2013,
756-765, |
102 Lithiated Phosphates of Iron and Some D-Metals: Synthesis in Molten Media, their Physicochemical and Electrode Properties |
Authors: | S.M. Malyovanyi, E.V. Panov, Yu.A. Tarasenko, N.T. Kartel | |
Summary: | LiFePO4, LiCoPO4, LiMnPO4, LiFe1-xCrxPO4, LiFe1-xMnxPO4 nanocrystals have been synthesized by deposition in a LiNO3 melt (400-450 0C). The phase and chemical composition, microstructure, morphology of the powder samples obtained of phosphates and their nanocomposites with carbon have been studied by X-ray phase analysis, emission spectrum analysis, electron microscopy. According to cyclic voltammetry data and
galvanostatic discharging curves, the electrode process at the samples synthesized in the melt is distinguished by reversibility, low capacity loss and good cycling kinetics. For substituted
phosphate, the peaks on cyclic voltammograms are much larger than for LiFePO4. | |
Keywords: | | |
Edition: | A collection of scientific articles "Surface" | | | 2013,
144-154,Russian |
102 Silicon-Containing Anodes with High Capacity Loading for Lithium-Ion Batteries |
Authors: | S.P. Kuksenko | |
Summary: | Comparative analysis of cycling performance of hybrid electrodes based on the MAG synthetic graphite mechanic mixtures with silicon nanopowder and “nanoSi/SiO2/hard carbon” ceramic frame-
ordered composite in 1 M LiPF6 solution in a monofluoroethylene carbonate–ethyl methyl carbonate mixture (30 : 70, v/v), added with 3 wt % vinylene carbonate and 2 wt % ethylene sulfite, is performed. The high capacity loading (up to 6.8 mA h cm–2 at the electrode layer thickness of 37 μm) and acceptable accumulated
irreversible capacity of the compositecontaining electrodes are achieved, due to the electrodes’ high density and stable siliconcontaining electrode/electrolyte interface formation. | |
Keywords: | hybrid electrodes for lithiumion batteries, “nanoSi/SiO2/hard carbon” ceramic frame-ordered composite, silicon nanopowder, the MAG synthetic graphite, capacity loading, accumulated irreversible
capacity | |
Edition: | Russian Journal of Electrochemistry | | | 2014,
599-610, |
102 Electrochemical Synthesis and Properties of the Composite LiFePO4 / C in an Electrolyte Based on LiBOB (in Russian) |
Authors: | O.V. Potapenko, E.V. Panov, V.A. Diamant, A.V. Potapenko | |
Summary: | Held solid-phase synthesis of the composite electrode material LiFePO4 / C. It is shown that in this method the synthesis of coarsening of the particles to form aggregates with an average size of about 1 micron, and the amount of carbon formed during the synthesis corresponding to 19%. Specific capacity of LiFePO4 varies from 70 to 142 mAh / g at the current density increases from 0.2 to 5C. The coefficient of diffusion of lithium in the cyclic voltammograms according LiFePO4 / C is 1.94 · 10-13 cm2 / s at the cathode and 3.87 · 10-13 cm2 / s at anodic process, respectively. | |
Keywords: | | |
Edition: | Ukrainian Chemistry Journal | | | 2014,
52-56,Russian |
102 Midle-Thermal Synthesis and Electrochemical Properties of the «C/LiFePO4» - Nanocomposites as a Cathode of the LI-Ion Battery (in Ukrainian) |
Authors: | A.V. Potapenko, Yu.O. Tarasenko, M.T. Kartel, E.V. Panov, A.V. Potapenko, V.A. Halahuz | |
Summary: | Procedures for the synthesis of «C/LiFePO4» nanocrystals, cathodic material for lithium ion battery, in LiNO3 and NaCl-KCl melts are proposed. It has been shown that powders with a mean particle size of 18 nm with olivine structure and carbon fragments on
the surface are formed. An electrochemical testing of samples showed the following characteristics: electrode and charge-transfer resistance: 75 and 100 Ω, diffusion coefficient: 410-13 cm2/s, charging capacity: 140 mAh/g, at a current of 30 mА/g and 3.1V and 3.7 V peaks. | |
Keywords: | | |
Edition: | A collection of scientific articles "Surface" | | | 2014,
184-192,Ukrainian |
102 102 Nonporous 3D-silicon – electrode nanomaterial of high efficiency for new generation lithium-ion batteries |
Authors: | S.P. Kuksenko | |
Summary: | | |
Keywords: | | |
Edition: | NANOTECHNOLOGY AND NANOMATERIALS, Technology Developments Book, Edited by Dr. Olena Fesenko. – Lviv: Eurosvit, 2014, 264 p. | | | 2014,
218-219, |
102 102 Nonporous nanostructured 3D-silicon for anodes of lithium-ion batteries |
Authors: | S.P. Kuksenko | |
Summary: | | |
Keywords: | | |
Edition: | Int. Technol. Meet. “Nanotechnologies and Nanomaterials for Business and Technology Areas”, Booklet of nanotechnologies of the participants of the International Technology Meeting, November 22, 2013, Kyiv: Institute of Physics NAS of Ukraine, 2013. | | | 2013,
,English |
102 102 Peapods of silicon with carbon nanotubes (Si @ CNT) as electrode materials for reversible storage of lithium |
Authors: | S.P. Kuksenko, V.S. Kuts', Yu.O. Tarasenko, M.T. Kartel' | |
Summary: | | |
Keywords: | | |
Edition: | | | | 2013,
,Russian |
102 Silicides of sodium and lithium clathrate type: preparation, structure and properties |
Authors: | S.P. Kuksenko, V.S. Kuts', Yu.O. Tarasenko, M.T. Kartel' | |
Summary: | | |
Keywords: | | |
Edition: | | | | 2013,
,Russian |
102 Formation of a polyfunctional insulating layer at the interface silicon electrode / organic electrolyte |
Authors: | S.P. Kuksenko, Yu.O. Tarasenko, M.T. Kartel' | |
Summary: | | |
Keywords: | | |
Edition: | | | | 2013,
,Russian |
102 3D-heterostructure silicon nanomaterials for anodes of lithium-ion batteries |
Authors: | S.P. Kuksenko, Yu.O. Tarasenko, M.T. Kartel' | |
Summary: | | |
Keywords: | | |
Edition: | | | | 2012,
,Russian |
102 Synthesis in molten salt of conductive structures phosphate iron subgroup and their electrode properties |
Authors: | S.M. Malevanyy, B.G. Nagornyy, E.V. Panov | |
Summary: | | |
Keywords: | | |
Edition: | | | | 2011,
,Russian |
102 A nanosilicon/carbonaceous matrix composite as lithium-ion battery anode active material |
Authors: | S.P. Kuksenko, I.O. Kovalenko, V.S. Kuts, Yu.A. Tarasenko,
M.T. Kartel | |
Summary: | | |
Keywords: | | |
Edition: | Int. Symp. devoted to the 80th anniversary of Academician O.O.Chuiko “Modern Problems of Surface Chemistry and Physics”, Incorporated First Meeting “Compositium”, Progr. & Abstr, Book, 18-21 May 2010, Kyiv-Ukraine | | | 2010,
388-389,English |
The events in the framework of the project |
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102 6. Nanochemistry Purpose:Development of fundamental principles for the establishment of novel highly energy and low-cost electrode materials based on nanostructured silicon powders and LiFePO4 for the new generation of lithium-ion batteries. Expected results:Issue of new types of products: methods, theories Stage 1:The study of the influence of surface functionalization and composition of nonaqueous electrolyte on the electrochemical parameters of electrode nanomaterials under lithiation-delithiation. Stage 2:Development of new electrolyte composition with improved parameters to ensure the effective reverse oxidation/reduction of electrode nanomaterials. Optimization of the synthesis of LiFePO4 crystals in salt melts to achieve reproducibility of the composition and properties.
Stage 3:Improvement of synthesis nanosilicon-carbon-containing materials and LiFePO4 nanocrystals with the influence of the reaction medium in size, phase composition and crystallinity of the particles. Optimization of electrochemical parameters of electrodes. Stage 4:The study of physical and chemical characteristics of the processes intercalation-deintercalation of lithium in carbon-containing matrix of composite with nanosilicon and LiFePO4 nanocrystals. Stage 5:Synthesis of pilot lots nanosilicon powders and nano-LiFePO4. The study of nanopowders, making of research electrodes and their testing.
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