| 摘要 |
The layered substance modifying method according to the present invention comprises: a step for applying a high pressure to a suspension obtained through suspending a layered substance in a dispersion medium, and supplying the suspension from a material introduction part 2; a step for passing the suspension supplied from the material introduction part 2 through an interlayer distance expansion module 3, and expanding the interlayer distance of the layered substance; a step for recovering, by a recovery part 4, the suspension that has passed through the interlayer distance expansion module 3; and a step for refining the obtained suspension by a refining part 5, wherein the material introduction part 2 and the interlayer distance expansion module 3 to be used have a liquid passage having an inner diameter of at least 0.15 mm through which the suspension flows and do not generate a jet stream. As a result, provided are: a layered substance modifying method that enables expansion of the interlayer distance of a layered substance by a simple and mild condition and obtainment of a modified layered substance at high concentration and high purity, and that is suitable for industrial mass-production; and a device for the method. In addition, by using graphite as the layered substance, a modified graphite and a secondary battery electrode material using the same are provided. |
