Thermodynamics of Lithium Intercalates in Carbonized Fabric

The method of quasi-equilibrium galvanostatic curves was applied to study the thermodynamics of lithium deintercalation from the system Li _x C₆ (solid phase)/Li⁺ (solution) in the interval 293-323 K and the thermodynamic characteristics (G, S, H) of lithium intercalation compounds in a carbonized fabric in relation to the degree of intercalation x.     

Kinetics of Anodic Dissolution of Lithium out of Li x C6 Electrodes in Nonaqueous Lithium Perchlorate Solutions

Kinetics of processes occurring during anodic dissolution of Li _x C₆ electrodes formed in structures of carbonized fiber and cloth (CC) in solutions of lithium perchlorate in a mixture of propylene carbonate and dimethoxyethane is studied. It is shown that the Li _x C₆ (CC) electrodes have an approximately three times greater intercalation capacity, which is caused by specific features of the structure of CC. Values of the initial concentration of lithium defects in the structure of a surface layer of the CC matrix and the diffusion coefficients for lithium in the temperature range 293–323 K are calculated.     

Synthesis and some transformations of pyrroles with aliphatic acyl substituents

A number of higher aliphatic pyrryl ketones were synthesized. It is shown that a carbethoxy group in the 5 position of the pyrrole ring relatively weakly deactivates the 3 position of the ring to electrophilic attack during Friedel—Crafts acylation but hinders this reaction considerably when it is in the adjacent 4 position. The oxidation of the -methyl group in a series of pyrryl ketones and the corresponding alcohols was studied.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 1, pp. 27–30, January, 1973.     

Discharge Characteristics of an LaAl/C8CrO3 Lithium Battery with Organic Electrolyte

Applicability of Paykert's equation, which relates the battery capacity to the discharge current, to prototypes of LiAl/C₈CrO₃ lithium batteries with an organic electrolyte (1 M LiClO₄ in a 1 : 1 mixture of propylene carbonate and dimethoxyethane) was examined. Pressed and rolled samples with and without modification of the C₈CrO₃ electrode with manganese dioxide were tested in the 0-50°C range.     

Electrochemical Intercalation of Lithium into Graphite in Acetonitrile Solutions: The Effect of the Anion Nature

Effect of the anion nature on the cathodic intercalation of lithium into graphite is studied. The duration of a discharge process and the capacity of Li _x C₆ electrodes increase in the row Cl^– HSO₄ ^– < ClO₄ ^– < SCN^–. The highest negative potential of an Li _x C₆ electrode is reached when lithiating in an LiSCN non-aqueous solution. X-ray diffraction and microstructure analyses confirm the presence in the electrode's upper layers of predominantly layered compounds Li _x C₆A _y , where A is anion. In deep layers, the principal intercalation product is Li _x C₆.