METHOD OF MANUFACTURING COMPOSITE BODY FOR SECONDARY BATTERY ELECTRODE, COMPOSITE BODY FOR SECONDARY BATTERY ELECTRODE, ELECTRODE FOR SECONDARY BATTERY, AND SECONDARY BATTERY

摘要

PROBLEM TO BE SOLVED: To provide a method of manufacturing a composite body for a secondary battery electrode capable of manufacturing, in a simple manufacturing step, a sheet-like composite body which is excellent in mechanical characteristic such as bending resistance, and capable of making a secondary battery exhibit excellent output characteristic and cycle characteristic.SOLUTION: A method of manufacturing a composite body for a secondary battery electrode includes a step in which a carbon nano-tube, an electrode active material, and a solvent are mixed to prepare a dispersion liquid, and a step in which the solvent is removed from the dispersion liquid to form a sheet-like composite body. Relating to the carbon nano-tube, average diameter (Av) and standard deviation in diameter (σ) satisfy a relation 0.20<(3σ/Av)<0.60.SELECTED DRAWING: None