CARBON FIBRIL AGGREGATES

摘要

In one aspect, a fibril aggregate that includes a multi- plicity of carbon fibrils whose longitudinal axis have sub- stantially the same relative orientation, each of the fibrils characterized as having graphitic layers that are substantial- ly parallel to its longitudinal axis and being free of a contin- uous thermal carbon overcoat and a method for preparing such-aggregates. In another aspect, an improved battery (10) having an anode (12), a cathode (14) that includes a chemi- salty reducible material into which is incorporated an amount of electrically conductive carbon microfibers suffi- cient to enhance the electrical conductivity of the chemically reducible material and an electrolyte. In another aspect; an improved electrochemical cell having a catalytic electrode on which an electrochemical reaction occurs which has in- corporated therein carbon microfibers having diameters less than 0:1 micron in an amount sufficient to enhance the elec- trical conductivity of the electrode.