ISAM Nanoparticles/Polymer Thin Film for RF Transparent Appique

An inexpensive, rechargeable and reliable electrical power system for marine buoys is proposed. This unique, safe system decomposes seawater to make pure hydrogen to supply a fuel cell, which converts the hydrogen directly to electricity at 50%+efficiency. The system is passive and insensitive to corrosion or shock. Hydrogen is produced by water reaction near ambient temperature with activated magnesium alloy. The only byproduct is Mg(OH)2 , milk of magnesia. The new Mg alloy has reactionproperties with seawater that are ideal for a power source with varying electrical demand and on/off requirements. The fuel cell is a commercially available proton exchange membrane, hydrogen-air unit. The system needs no electronics or moving parts. Itwill produce about 1.3 kWh per kg of total system weight. Consumable reagents should cost less than $4/kWh. Periods between magnesium alloy recharging can be much longer than six months. During Phase 1 an integrated prototype system will be prepared towork continuously without maintenance. This effort will include optimizing the composition and geometry of the rechargeable magnesium alloy elements; designing an integrated system for buoy requirements (e.g., 35 W for 6 months) and conditions; andtesting/optimizing of the selected prototype.It is anticipated that the NAVY will gain from this R&D effort an electrical power source which will have 1.4kWh energy capacity per kg of total weight . This unit can easily be adapted as a power source formarine buoy and produce 35W of electrical energy for 6 months without any maintenance service .This system is ideal for different low power marine applications.