Carbon fibers, catalyst for production of carbon fibers, and method for evaluation of carbon fibers

摘要

Provided are carbon fibers with low metal ion elution amount without subjecting to high-temperature heat treatment, in which the metal ion may be sometimes precipitated on an electrode of electrochemical devices such as batteries and capacitors to cause short-circuit. The carbon fibers comprises Fe, at least one catalyst metal selected from the group consisting of Mo and V, and a carrier; wherein the carbon fibers have an R value (ID/IG) as measured by Raman spectrometry of 0.5 to 2.0 and have an electrochemical metal elution amount of not more than 0.01% by mass.

主权项

1. A catalyst for production of carbon fibers, the catalyst comprising catalyst metals and a carrier; wherein
the catalyst metals consist of Fe and Mo or consist of Fe, Mo and V, and Mo accounts for not less than 0.1% by mol and less than 5% by mol based on Fe.