二酸化マンガン-カーボン系材料の複合化操作とその評価 Production and Evaluation of Composite of Manganese Dioxide and Carbon-based Material
For wide-scale use in small electronic devices and other equipment, manganese dioxide lithium batteries are produced by the process of mixing, granulating, shaping, and drying (the wet process). This process, however, uses binder liquid and other substances. High costs, environmental pollution, and imperfect drying of such substances are problems. To eliminate the need for binder liquid in the anode pellet-shaping process, this study attempted to use a high-speed shear mill to produce a composite of manganese dioxide and graphite (carbon black)-based particles. The particle fluidity and size distribution were measured. Composite particles were shaped into anode pellets, whose electric resistance and density were examined. The following was concluded:<BR>The dry coating method can design composite particles for anode pellets without binder liquid. The present results show clarify the optimal operating conditions of a mixer for designing composite particles that have excellent design parameters, such as high fluidity and improved electric resistance. The dry method can shape anode pellets of greater electric resistance than the wet process.
粉体および粉末冶金 45(9), 877-881, 1998-09-15
Japan Society of Powder and Powder Metallurgy