Justicia social : Órgano de la Federación Socialista Menorquina y de la Federación Obrera de Menorca: Epoca III Año VIII Número 493 - 1938 Marzo 02

The nature of protective surface layers formed on lithium in propylene carbonate solutions of LiClO{sub 4} and LiAsF{sub 6} at open circuit has been investigated by electrochemical pulse measurements. The results are consistent with the fastformation of a compact thin layer resulting from the reaction with residual water. This layer acts as a solid ionicconductor. Slow corrosion or decomposition processes produce a thicker porous overlayer

Impecence of the electrode in Li/LixMnO2 accumolators at the conditions of OCV.

The impedance of the Li electrode in Li/LixMnO2 accumulators is studied at open-circuit voltage. An unexpected low-frequency inductive behavior was observed in the impedance spectra. The influence of the state-of-charge, storage time, and cycling conditions of Li/LixMnO2 accumulators on this inductive behavior is characterized. A simplified model of a corrosion process at the Li/electrolyte interface including multistep cathodic coupled reactions is presented which accounts qualitatively for the inductive behavior observed

Behaviour of the Lithium electrode during cycling in nonaqueous solution.

The behaviour, in different electrolyte, of Li during cycling in anode limited close packed cells has been studied. The highest efficiency (E) at a current density of 4 mA cm-2 and a charge density of 2 mA h cm-2 is obtained in LiAsF6 containing a mixture of THF/2-MeTHF with 2 vol.% 2MeF. The effect on E of current density and depth of discharge in ether solutions has also been examined. The charge of polarization resistance, ohmic drop in the solution and geometric capacitance with cycling, has been investigated by the galvanostatic pulse method. An assumption for the Li passivation observed during cycling in ether electrolytes is discussed