Carbonaceous material for electronic materials

Abstract

The present invention relates to a carbonaceous material derived from a plant starting material, which is useful for electronic materials for conductive materials, capacitor electrodes, storage battery electrodes, nonaqueous electrolyte secondary battery electrodes and the like. The present invention relates to a carbonaceous material for electronic materials, which is obtained by burning a carbon precursor derived from palm husk, and which is configured such that: the potassium content in the carbonaceous material is 100 ppm or less; the calcium content in the carbonaceous material is 100 ppm or less; and the elemental oxygen content in the carbonaceous material is 0.25% by weight or less.

Dependencies are inferred from the claim text.