Title:
層状物質を改質する方法およびそのための装置、ならびに改質されたグラファイトおよびそれを用いた二次電池用電極材料
Document Type and Number:
Japanese Patent JP6805440
Kind Code:
B2
Abstract:
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.
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Inventors:
Kara
Zhang
Hayashi
Matsudaira Yorishige
Noriaki Hata
Zhang
Hayashi
Matsudaira Yorishige
Noriaki Hata
Application Number:
JP2017526304A
Publication Date:
December 23, 2020
Filing Date:
June 22, 2016
Export Citation:
Assignee:
National Institute for Materials Science
Harima Chemicals Co., Ltd.
Harima Chemicals Co., Ltd.
International Classes:
C01B32/21; H01M4/587
Domestic Patent References:
| JP2007269545A | ||||
| JP2014009151A | ||||
| JP2014105123A | ||||
| JP9237638A | ||||
| JP9245794A |
Foreign References:
| WO2014053510A1 |
Attorney, Agent or Firm:
Shigerou
Toshio Nishizawa
Toshio Nishizawa