| abstract |
Provided is a flake-like carbon material that is suitable for use as an electrode material for an aqueous-electrolyte secondary battery. When the end surface of a particle of the carbon material is measured using a micro-Raman spectrometer, the peak area (I D ) of the peak measured in the 1300-1400 cm -1 range of the Raman spectrum, and the peak area (I G ) of the peak measured in the 1580-1620 cm -1 range of the Raman spectrum have a I G /I D intensity ratio (G value) that is 5.2–100 inclusive. The average plane spacing (d002) of the (002) planes, as measured by X-ray diffractometry, is equal to or less than 0.337nm. The material has an optical structure of a specific shape. Also provided are a method for manufacturing the carbon material, a carbonaceous material for a battery electrode that includes the carbon material, a paste for an electrode, and a secondary battery that exhibits superior charge/discharge cycle properties and heavy-current carrying properties. |