抄録
It was previously shown that the most suitable blacks for dry cells must simultaneously satisfy three conditions. In this paper, studies of graphitic nature of the primary particle, size of the secondary aggregated particle and degree of the chainlike structure have been made by the Xvay diffraction patterns and the electron micrographs.
The obtained results seem to show that as the crystal structure of acetylene black approaches to a more graphitic forme, size of the aggregated particle decreases and length of the chainlike structure increases in some conditions applied in the production process.
However it is not so much important to makes develope the graphitic structure rather than the secondary and chainlike structure.