The lithium ion capacitor negative electrode carbon material and manufacturing method thereof
2013
Object of the present invention is to provide: the carbon derived from plants as a raw material, potassium and iron are sufficiently deashing, negative small average particle size lithium ion capacitor A method of manufacturing a carbon negative electrode carbonaceous material, and a lithium ion capacitor materials. The object may be 3-30μm average particle diameter of the negative electrode by lithium ion capacitor solved by a method for producing a carbonaceous material, the manufacturing method comprising the following steps: (1) the average particle diameter 100-10000μm derived from a plant in the carbon-containing halogen compound gas an inert gas atmosphere in the heat treatment is performed at 500 ℃ -1250 ℃ deashing step; (2) the deashing carbonaceous precursor pulverizing by gas; and (3) the pulverized carbonaceous precursor under a non-oxidizing gas atmosphere in the firing step below at 1100 ℃.
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