CONDUCTIVE AGENT OF NONAQUEOUS SECONDARY BATTERY ELECTRODE, ELECTRODE AND NONAQUEOUS SECONDARY BATTERY

摘要

PROBLEM TO BE SOLVED: To enhance the charge-discharge capacity of a battery and to extend the service life thereof by using boron-dissolving carbon black as a conductive agent. SOLUTION: Boron-dissolving carbon black used as a conductive agent can be manufactured by providing a boron source during a thermal decomposition reaction and/or combustion reaction of hydrocarbon. Acetylene is particularly preferable for the hydrocarbon, and an organic boron compound is preferable for the boron source. The resistivity of the boron-dissolving carbon black is preferably 0.10 Ωcm or less, and the dissolving quantity of boron at that time is preferably 0.6 wt.% or more. In order to manufacture this electrode, slurry is prepared by dispersing a mixture of the boron-dissolving carbon black with a negative electrode active material or positive electrode active material in a liquid containing a binder, and a collector formed of metal foil is covered with it by applying and drying it.