Use of carbon filaments in place of carbon black as the current collector of a lithium cell with a thionyl chloride bromine chloride catholyte

1996 ◽  
Vol 58 (1) ◽  
pp. 55-66 ◽  
Author(s):  
Christine A. Frysz ◽  
Xiaoping Shui ◽  
D.D.L. Chung
1995 ◽  
Vol 393 ◽  
Author(s):  
Christine A. Frysz ◽  
Xiaoping Shui ◽  
D. D. L. Chung

ABSTRACTSubmicron carbon filaments used in place of carbon black as porous reduction electrodes in carbon limited lithium batteries in plate and jellyroll configurations with the BCX (bromine chloride in thionyl chloride) catholyte gave a specific capacity (at 2 V cut-off) of up to 8700 mAh/g carbon, compared to a value of up to 2900 mAh/g carbon for carbon black. The high specific capacity per g carbon (demonstrating superior carbon efficiency) for the filament electrode is partly due to the filaments' processability into sheets as thin as 0.2 mm with good porosity and without a binder, and partly due to the high catholyte absorptivity and high rate of catholyte absorption of the filament electrode.


1989 ◽  
Vol 28 (3) ◽  
pp. 269-277 ◽  
Author(s):  
Stephen A. Kubow ◽  
Kenneth J. Takeuchi ◽  
Ester S. Takeuchi

1994 ◽  
Vol 47 (5) ◽  
pp. 963 ◽  
Author(s):  
RW Gable ◽  
KJ Parker ◽  
J Tsanaktsidis

Exposure of (1) to bromine in thionyl chloride/ dimethylformamide produced (5), the result of regio- and stereo-selective addition of bromine chloride across the carbonyl-conjugated double bond. The structure of (5) was determined by X-ray crystallography, and its mode of formation is discussed in terms of the carbonyl attack mechanism.


Author(s):  
Akira Tanaka ◽  
David F. Harling

In the previous paper, the author reported on a technique for preparing vapor-deposited single crystal films as high resolution standards for electron microscopy. The present paper is intended to describe the preparation of several high resolution standards for dark field microscopy and also to mention some results obtained from these studies. Three preparations were used initially: 1.) Graphitized carbon black, 2.) Epitaxially grown particles of different metals prepared by vapor deposition, and 3.) Particles grown epitaxially on the edge of micro-holes formed in a gold single crystal film.The authors successfully obtained dark field micrographs demonstrating the 3.4Å lattice spacing of graphitized carbon black and the Au single crystal (111) lattice of 2.35Å. The latter spacing is especially suitable for dark field imaging because of its preparation, as in 3.), above. After the deposited film of Au (001) orientation is prepared at 400°C the substrate temperature is raised, resulting in the formation of many square micro-holes caused by partial evaporation of the Au film.


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