| 摘要 |
The present invention relates to the preparation of titanium disulfide and more particularly to the production of stoichiometric titanium sulfide having a high degree of crystalline perfection and a controlled particle size by directly reacting metallic titanium and elemental sulfur. Particulate titanium is heated to a reaction temperature of between about 475.degree.C and about 600.degree.C, and the heated titanium is contacted with an atmosphere having a sulfur partial pressure substantially equal to the equilibrium sulfur partial pressure over titanium disulfide at the reaction temperature to form titanium disulfide, the titanium and sulfur being in substantially stoichiometric amounts. The heated titanium is held at the reaction temperature to homogenize the titanium disulfide. The stoichiometric titanium disulfide so produced is particularly useful as a cathode material in electrochemical cells, since crystal imperfections which would reduce the effectiveness of the titanium sulfide as a cathode material are minimized. |
