• DETERMINATION OF OPTIMAL SYNTHESIS CONDITIONS OF THE CU@PET COMPOSITES USING TAGUCHI ROBUST EXPERIMENT DESIGN 

  Mashentseva, Anastassiya; Zdorovets, Maxim (National Laboratory Astana, 2022-08)

  In this task the Taguchi robust design was applied to optimize experimental parameters as well as to determine the optimal conditions for the electroless copper plating. Taguchi robust planning is widely used in the ...
• LIMITATIONS AND CAPABILITIES OF MICRO-RAMAN SPECTROSCOPY. ELECTRODE MATERIALS FOR LITHIUM BATTERY 

  Ryabin, Alexander; Nikiforov, Alexei; Pelegov, Dmitry (National Laboratory Astana, 2022-08)

  Raman spectroscopy is an inexpensive and convenient tool for prompt structural characterization. Most research groups have access to confocal Raman microscopes with claimed submicron spatial and subsecond temporal resolutions. ...
• SOLUTION-PROCESSED SNO2 QUANTUM DOTS ELECTRON TRANSPORT LAYER FOR FLEXIBLE PRINTED PEROVSKITE SOLAR CELLS 

  Kakimov, Alibek G.; Kiani, Muhammad Salman; Sadirkhanov, Zhandos T.; Ng, Annie; Jumabekov, Askhat N. (National Laboratory Astana, 2022-08)

  Flexible perovskite solar cells (PSCs) fabricated on lightweight plastic substrates have many excellent potential applications in emerging new technologies including wearable and portable electronics, the internet of things, ...
• BIOMASS-BASED BIOCHAR OBTAINED BY LOW-TEMPERATURE PYROLYSIS IN THE PRESENCE OF METAL OXIDES: PREPARATION, CHARACTERIZATION AND FUTURE APPLICATIONS 

  Aitbayeva, Aigerim; Uali, Aitolkyn; Shlyapov, Rustam; Vishnyakov, Alexey; Amerkhanova, Shamshiya (National Laboratory Astana, 2022-08)

  Biochar, which is material obtained from biomass by thermochemical decomposition, is an environmentally friendly replacement for carbon materials. Its applications range from heat and energy production, agriculture and ...
• THE SOH AND THE SOC ASSESSMENT OF NCR18650 PANASONIC CYLINDRICAL BATTERY THROUGH THE ENTROPYMETRY 

  Serik, Yerkin; Adair, Desmond; Bakenov, Zhumabay; Uzakbaiuly, Berik (National Laboratory Astana, 2022-08)

  As the demand for the li-ion batteries increases in various areas, the precise and reliable assessment of the state of health (SOH) and the state of charge (SOC) of the battery become more important in the battery management ...
• EFFECT OF ACID ETCHING OF STAINLESS-STEEL FOILS IN RECHARGEABLE LITHIUM-ION BATTERIES 

  Maratova, Kamila; Konarov, Aishuak; Umirov, Nurzhan; Bakenov, Zhumabay (National Laboratory Astana, 2022-08)

  Research into rechargeable aqueous batteries is driven by the need for low-cost, high-safety batteries for large-scale energy storage applications. The effect of current collectors on battery performance is frequently ...
• INVESTIGATION OF SURFACE CARBIDE LAYERS OF TUNGSTEN UNDER THE INFLUENCE OF HELIUM PLASMA 

  Miniyazov, Arman; Skakov, Mazhyn; Tulenbergenov, Timur; Sokolov, Igor; Stepanova, Olga (National Laboratory Astana, 2022-08)

  The relevance of the research is caused by development of a fusion energy, where issues of surface modification of plasma-facing materials of the first wall and divertor of a fusion reactor are of great importance. Therefore, ...
• SOL-GEL SYNTHESIS OF LIFEPO4 FOR LIB BASED ON LITHIUM CARBONATE FROM KAZAKHSTANI SPODUMENE FEEDSTOCKS 

  Zhanabayeva, Assem; Nalibayeva, Arailym; Zhumabayeva, Dinara; Abdykhalykov, Erlan (National Laboratory Astana, 2022-08)

  LiFePO4 (LFP) cathode material with an olivine structure, in comparison with other cathode materials, has a number of positive properties, such as: high theoretical capacity and stability, low cost and environmental ...
• FACTORS AFFECTING THE DESIGN OF HYDROGEN SEPARATORS BASED ON DENSEMETALLIC MEMBRANES 

  Pişkin, Fatih; Akyıldız, Hasan; Öztürk, Tayfur (National Laboratory Astana, 2022-08)

  Pure hydrogen is needed for a number of applications; annealing furnaces, semiconductor processing, LED, photovoltaic manufacturing etc. Perhaps the most important in this respect is power generation via PEM fuel cells..
• EFFECT OF DOPING WITH CATIONS AND ANIONIC GROUPS ON THE IONIC CONDUCTIVITY PROPERTIES OF LATP SOLID ELECTROLYTES FOR LI-ION BATTERIES 

  Baltash, Yelnury; Mashekova, A.; Yegamkulov, M.; Trussov, I.; Mukanova, A. (National Laboratory Astana, 2022-08)

  The good energy capacity of lithium-ion batteries (LIBs) makes them promising electrochemical energy storage devices. Existing commercial batteries use flammable liquid electrolytes, which are unsafe, toxic and environmentally ...
• 3D PRINTING OF HIGH-PERFORMANCE ELECTRODES FOR ALL-SOLID-STATE RECHARGEABLE LITHIUM-ION BATTERIES 

  Nnwaogu, Emmanuel Chisom; Nurpeissova, Arailym; Kalimuldina, Gulnur; Bakenov, Zhumabay (National Laboratory Astana, 2022-08)

  Three-Dimensional (3D) electrode architecture of lithium-ion batteries (LIBs) is a new generation energy storage system with high energy and high-power capacity to satisfy high consumer demands, especially for its application ...
• BIOMASS GRAPHENE DERIVED FROM DATE SEEDS AS AN ANODE MATERIAL FOR LITHIUM-ION BATTERY 

  Tassybay, Kazna; Issatayev, Nurbolat; Kalimuldina, Gulnur; Nurpeissova, Arailym; Bakenov, Zhumabay (National Laboratory Astana, 2022-08)

  Lithium-ion batteries (LIBs) are in great demand as energy storage systems applied in wide range of electronic devices. However, currently used commercial anodes have a limited capacity of 372 mAh g -1. Therefore, development ...
• MICROWAVE-ASSISTED SYNTHESIS OF LISICON STRUCTURED LI3V2(PO4)3/ GRAPHENE COMPOSITE 

  Mukushev, Ilyas; Nurpeissova, Arailym; Kalimuldina, Gulnur; Bakenov, Zhumabay (National Laboratory Astana, 2022-08)

  One of the main challenges in cathodes at low temperatures (LT) is associated with low electronic and ionic conductivity. Graphene can be used to increase electronic conductivity, but most of the experimental methods for ...
• ENHANCING THE LOW-TEMPERATURE CHARACTERISTICS OF A LI/GRAPHITE HALF-CELL BY THE COMPREHENSIVE MODIFICATION OF ELECTROLYTE 

  Rakhatkyzy, Makpal; Nurpeissova, Arailym; Kalimuldina, Gulnur; Belgibayeva, Ayaulym; Bakenov, Zhumabay (National Laboratory Astana, 2022-08)

  In this work, a complex modification of the lithium salt and solvents was applied simultaneously to develop an optimal electrolyte system with improved low-temperature characteristics for the Li/graphite half-cell.
• LOW-TEMPERATURE PERFORMANCE OF SNXP/C COMPOSITE NANOFIBERS AS FREE-STANDING ANODE MATERIALS FOR LITHIUM-ION BATTERIES 

  Belgibayeva, Ayaulym; Rakhatkyzy, Makpal; Rakhmetova, Aiym; Kalimuldina, Gulnur; Nurpeissova, Arailym; Bakenov, Zhumabay (National Laboratory Astana, 2022-08)

  Graphite anode is admitted as one of the critical limiting factors for applying lithium-ion batteries (LIBs) in low-temperature (LT) environments. As an alternative, tin compounds, such as SnO2, exhibit much better LT ...
• SNSE@POROUS CARBON NANOFIBERS AS A FREE-STANDING ANODE FOR LOW-TEMPERATURE LITHIUM-ION BATTERIES 

  Rakhmetova, Aiym; Nurpeissova, Arailym; Kalimuldina, Gulnur; Bakenov, Zhumabay (National Laboratory Astana, 2022-08)

  Tin selenide-based materials are considered to be promising high-capacity anode materials for Li-ion batteries (LIBs) owing to their non-toxicity, earth-abundance, and chemical stability. However, SnSe suffers from a large ...
• GRAPHENE-LIKE POROUS CARBONS AS A SULFUR HOST FOR LITHIUM-SULFUR BATTERIES 

  Sultanov, Fayil; Mentbayeva, Almagul; Kalybekkyzy, Sandugash; Danebayev, Askhat; Zhaisanova, Azhar; Bakenov, Zhumabay (National Laboratory Astana, 2022-08)

  Lithium-sulfur batteries (LSBs) are recognized as the next generation energy storage systems due to their high theoretical capacity of 1675 mAh g-1 and energy density of 2600 Wh kg-1. However, such disadvantages as low ...
• IMPACT OF SUBSTRATE SURFACE PREPARATION METHOD ON SEI FORMATION REGULARITIES DURING ELECTROCHEMICAL DEPOSITION OF LITHIUM 

  Ryabicheva, Margarita; Kurbatov, Andrey (National Laboratory Astana, 2022-08)

  The use of lithium metal as an anode for batteries has undeniable advantages because this metal has the most negative reduction potential and the highest theoretical specific capacity. The reduction of lithium metal initially ...
• ON ELECTROCHEMICAL ACTIVITY OF ZN2(EDTA)(H2O) IN AQUEOUS SODIUM-ION BASED ELECTROLYTES 

  Starodubtseva, Alena; Trussov, Ivan; Galeyev, Alina; Kurbatov, Andrey (National Laboratory Astana, 2022-08)

  Metal-organic frameworks (MOFs) are a class of compounds consisting of metal ions or clusters coordinated to organic ligands to form one-, two-, or three-dimensional structures. Due to their high porosity and excellent ...
• SIMULATION OF INTERCALATION PROCESSES IN POORLY CONDUCTIVE MATERIALS 

  Kurbatov, Andrey; Zhigalenok, Yaroslav; Kokhmetova, Saule; Malchik, Fyodor; Galeyeva, Alina (National Laboratory Astana, 2022-08)

  Currently, the search for new electrode materials for metal-ion batteries, based on the identification of crystal structures with ionic mobility and the ability for reversible intercalation process, often leads to materials ...

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