Zobrazeno 1 - 10
of 56
pro vyhledávání: '"A. Nassalevska"'
Publikováno v:
Journal of Power Sources. 57:99-103
LiMn 2 O 4 spinel samples, synthesized by the reaction of Li 2 CO 3 and MnCO 3 in air in several steps, have been evaluated as the electrode materials in 4 V lithium-ion cells. It was shown that the synthesis in the temperature range 500–750 °C le
Publikováno v:
Journal of Power Sources. 54:323-328
The scaling-up problems connected with the LiMn2O4 synthesis were studied. A strong effect of the mass of the starting materials and of the air flow rate through the furnace during the synthesis on the specific capacity was observed. The increase of
Publikováno v:
Journal of Power Sources. 44:551-559
The electrochemical properties of the lithium spinel Li1−xMn2O4 (0 < x < 1) synthesized by three different methods are discussed. The synthesis of spinel LiMn2O4 for secondary lithium cells should be performed at temperatures lower than 750 °C, si
Publikováno v:
Journal of Power Sources. 41:305-314
The effect of the starting products and the synthesis temperature on electrochemical parameters of Li 1− x Mn 2 O 4 (0 x 2 O 4 spinel for lithium cells operating at low and medium discharge rates is not essentially affected by the nature of the sta
Publikováno v:
Journal of Power Sources. 34:119-127
The composition and structure of layered compounds described by the general formula LixCr1 − yVyS2 (0 < y < 0.5), synthesized in potassium polysulphide melts, have been investigated. The electrochemical performance of these compounds with regard to
Publikováno v:
Collection of Czechoslovak Chemical Communications. 56:223-229
To overcome the incompatibility between microporous polypropylene separator and electrolyte solutions based on cyclic esters, three methods of preliminary impregnation of the separator with electrolyte solution, without using surface active agents, a
Publikováno v:
Journal of Applied Electrochemistry. 20:763-767
The behaviour of the Li/Li1+xV3O8 system in a secondary button cell has been investigated. It is shown that when using electrolytes based on LiAsF6 (without stabilizing additives) the best results are achieved with cyclic esters. It is established th
A method for the improvement of the electrochemical properties of Li1+xV3O8 is presented based on the partial modification of its crystal structure by the introduction of small amounts of inorganic compounds, such as H2O, CO2 and NH3. The modificatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8d0efbf117799b5ff1afe037fa61e9e2
http://hdl.handle.net/11573/428942
http://hdl.handle.net/11573/428942
The electrochemical performance of the phases K3V5O14, KV3O8, K2V8O21 and KV5O13, in view of their use as positive electrodes for secondary lithium cells, has been investigated. While the two potassium richer compounds showed very low recharge effici
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6d71f650addb2af2431e57a0a312ea55
http://hdl.handle.net/11573/428943
http://hdl.handle.net/11573/428943