2009 Chem -E-Car Competition

1. Alkaline Battery Arizona State University Dr. Bryan Vogt Jacob Lenzi, Nick Linneen, Mario Mendez, Luis Moya, Helena Mousa, Tara Smith Vehicle propulsion source is # of Alkaline Batteries controled via ….stopping mechanism Vehicle Mechanics Design Unique Features Safety • Stopping Mechanism • Materials: • Methodology • Design • Unique Features • Safety • Alkaline Battery Development • Materials: • Anode • Zinc (Solid) Reactant, electronic conductor • Poly(ethylene-alt-maletic anhydride) Binding agent, Electrolyte distribution • Potassium Hydroxide Solution 47% Ionic Conductor • Cathode • Electrolytic Manganese Dioxide (MnO2) Reactant • Carbon (Graphite Powder)- 99.99+% metal basis Electronic Conductor • Poly(ethylene-alt-maletic anhydride) Cathode Integrity • Potassium Hydroxide Solution 47% Ionic Conductor • Methodology • The Alkaline-Manganese Dioxide battery is a very simple, powerful cell. Like most batteries it runs on a oxidation-reduction reaction between the cathod and anode. The cathode consistes of electrolytic Manganese Dioxide (EMD), while the anode consists of powdered Zinc. The cell has a higher energy density, better service performance, longer shelf life, and lower internal resistance than traditional Carbon-Zinc batteries. The primary re-dox reactions for this battery are described below. •  2MnO2 + H2O +2e  2MnOOH + 2OH- • Zn + 2OH-  Zn(OH)4 + 2e • 2MnO2 + Zn + 2H2O  2MnOOH + Zn(OH)2 • Design • Casing: • Large: • Hallol Steal rectangle with dimensions of • Unique Features • Safety Special Thanks to our Contributors: 2009 Chem-E-Car Competition