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ISSN 1680-9505 (Online)


For citation:

Sukhov V. V., Ovsyannikov V. M., Dmitrienko A. O., Bylinkina N. N. Comparative examination of LiyNixCo1-xO2 materials for lithium-ion battery cathodes. Electrochemical Energetics, 2001, vol. 1, iss. 1, pp. 62-65.

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Language: 
Russian
Article type: 
Article
UDC: 
541.136

Comparative examination of LiyNixCo1-xO2 materials for lithium-ion battery cathodes

Autors: 
Sukhov V. V., Saratov State University
Ovsyannikov V. M., Saratov State University
Dmitrienko Aleksandr Olegovich, Saratov State University
Bylinkina N. N., Saratov State University
Abstract: 

A number of LiyNixCo1-xO2 compounds were synthesised by means of solid-state annealing. The synthesis conditions (the raw components, temperature, duration) were optimized so that phases with y > 0.97 were obtained suitable for making positive electrodes for lithium-ionic batteries. The charge-discharge characteristics of such LiyNixCo1-xO2. electrodes were studied. The charging curves of several first cycles are slanted, the corresponding capacity reaches 120-130 mA·h/g. The capacity corresponding to further cycles essentially depends on x and y. The electrodes with x = 1 showed an obvious tendency to decrease their capacity in the course of cycling while the cobalt-containing compounds have more stable electrochemical characteristics. The materials based on mixed oxides of lithium, nickel and cobalt seem promising for making lithium-ionic battery cathodes from every viewpoint.

Reference: 
  1. Nagaura T., Tazawa K. // Prog. Batteries Solar Cells. 1990. V.9. P.20.
  2. Dahn J.R., Von Sacken U., Jukov M.R., Al-Janaby H. // J. Electrochem. Soc. 1991. V.137. P.2207.
  3. Ozawa K. // Solid State lonics. 1994. V.69. P.212.
  4. Yamada А., Miura K., Hinokuma K., Tanaka M. // J. Electrochem. Soc. 1995. V.142. P.2149.
  5. Tarascon J.M., Guyomard D. // J. Electrochem. Soc. 1991. V.138. P.2864.
  6. Ohzuku Т. et al. // Electrochim. Acta. 1993. V.38. P.1159.
  7. Arai H., Okada S., Sakurai Y., Yamaki J.-I. // J. Electrochem. Soc. 1997. V.144. P.3117.
Received: 
22.11.2000
Accepted: 
18.02.2001
Published: 
30.06.2001