| 摘要 |
A negative electrode material for a lithium ion secondary battery, said negative electrode material containing: carbon particles (A); and an aggregate in which particles (B), which include an element that is capable of absorbing and desorbing lithium ions, and carbon nanotubes (C), 95% (based on number) or more of which have a fibre diameter of 5-40 nm inclusive, are uniformly formed into a composite. The negative electrode material is obtained by a method that involves: obtaining a paste, or a slurry by pressure-feeding a mixed liquid into a grinding nozzle of a high pressure dispersion device, said mixed liquid containing the particles (B), which include an element that is capable of absorbing and desorbing lithium ions, the carbon nanotubes (C), 95% (based on number) or more of which have a fibre diameter of 5-40 nm inclusive, and water; drying, and making the paste, or slurry into a powder; and mixing the powder, and the carbon particles (A). |
