| 摘要 |
PURPOSE:To manufacture the positive pole of a nonaqueous solvent battery excellent in its discharge characteristic and preservability, by subjecting carbon black to neutralizing treatment by lithium hydroxide after heating it under reduced pressure in inactive environment, meanwhile employing thyionyl chloride as a positive pole active substance. CONSTITUTION:Carbon black is placed in a tubular furnace and subjected to heat treatment at a preset temperature while being exposed to flow of Ar gas. On the other hand, this carbon black is diffused in alkaline liquid in which lithium hydroxide is dissolved at a certain concentration, heated, agitated and subjected to neutralizing treatment. Thereafter, the carbon black is filtrated, heated under reduced pressure, dried and formed in a positive pole. Accordingly, any reaction between SOCl2 representing a positive pole active substance and oxygen including functional group staying in porous carboneous material can be well restricted so that the discharge characteristic of the battery may be improved. Furthermore, the preservability of a battery is enhanced if the neutralizing treatment by lithium hydroxide is performed after the heat treatment. |
