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Laboratory of electrochemical power sources

Head of the laboratory:

Yolshina Ludmila Avgustovna

DSc (Chemistry)

Tel.: +7 (343) 362-36-44

E-mail: yolshina@ihte.uran.ru

Established in 1962 by G. K. Stepanov, PhD (Chemistry), the Lab was first called the Fuel Cells Laboratory and was partially formed by the Corrosion Laboratory research workers. In 1980 the name was changed to the Laboratory of Electrochemical Power Sources.

The Laboratory includes 19 employees, among them are 2 DSc (Chemistry),  9 PhD (Chemistry).

Research areas: 

  1. Scientific fundamentals of the development of enhanced service life carbonate fuel cells running on various fuels;
  2. Scientific fundamentals of the development of high energy density solid-state lithium ion rechargeable batteries boasting large numbers of discharge/charge cycles, long shelf life, and safety indicators;
  3. Scientific fundamentals of the development of high-power thermal batteries for standby power supply.

Targets of research:

  1. Alkali metal cation conductive solid-state electrolytes;
  2. Lithium cation conductive solid-state polymer electrolytes;
  3. Lithium and sodium-conducting glasses and glass-ceramic materials;
  4. Lithium and sodium-conducting composition polymer electrolytes;
  5. Cathode and anode materials for lithium chemical power sources;
  6. Cathode materials for carbonate fuel cells.

Methods of research:

  1. Conductometry;
  2. Impedance spectroscopy and other relaxation methods of electrode process kinetic study;
  3. Voltammetry;
  4. Chronopotentiometry and chronoamperometry;
  5. X-ray phase analysis;
  6. Infrared spectroscopy;
  7. Optic and scanning electron microscopy;
  8. Differential thermal analysis;
  9. Synchronous thermal analysis;
  10. Nuclear magnet resonance spectroscopy;
  11. Molecular dynamic and thermodynamic modeling;
  12. 12.Quantum-chemical modeling.

Key achievements:

  1. Research on the kinetics and mechanisms of electrolytic reduction of oxygen in carbonate melts on various oxide semiconductor materials;
  2. Description of the kinetics and mechanisms of electric current generation at the triple phase boundary of the oxygen electrode in the molten carbonate fuel cell;
  3. Detection of kinetics and electroreduction mechanism of molten alkali metals nitrates, chlorates and perchlorates;
  4. Research on polarisation phenomena on the boundary between solid state lithium conducting and molten electrolytes;
  5. Research on the kinetics and mechanism of electrolytic reduction of transition metal halides and oxides and their mixtures in molten alkali metal halides;
  6. The synthesis and detection of structure of new double oxide- and nitride-based solid state electrolytes with high alkali ion conductivity. The study of their transport properties, andsuggestion of the mechanisms of ion transfer;
  7. Detection of characteristics, which effect amorphous phase composite electrolyte transport properties (glass, polymer);
  8. The study of lithium-conductive polymer electrolyte structure, physical-chemical properties and ion transfer mechanisms;
  9. Suggestion of common molecular mechanisms of structure formation in amorphous polymer electrolytes within the homogeneity region;
  10. Scientific fundamentals of production of solid polymer electrolyte with superionic conductivity at ambient temperatures;
  11. Development of unique polymer materials – solid polymer electrolytes with lithium cation unipolar conductivity with enhanced fire and explosion safety.

Applied research:

  1. Reserve chemical power sources for the special-purpose standby power supply. Due to high specific electric characteristics: power – 0.1 – 100 kW, operationtime 1 – 60 minutes, operational at ambient temperatures – 50 to + 50 degrees centigrade, guaranteed 15 years shelf life before use, it is introduced into production;
  2. New alternative electrochemically active cathode materials with enhanced shelf life for carbonate fuel cells;
  3. Laboratory prototype of the sodium reference electrode for applications at electrochemical protection stations of underground and marine pipelines and other structures. Thesodiumreferenceelectrode is used for ionometric detection of sodium salts in ground and marine water;
  4. Production process technology for rechargeable lithium-ion cell polymer electrolytes with conductivity exceeding
    10-3 Cm/cm;
  5. Laboratory prototype of an electrochemical air regeneration unit aimed at oxygen purification from carbon dioxide and capable of the production of high purity oxygen and carbon dioxide.