Metal-Air Battery

The open electrochemical cells generally comprise a cathode, an electrolyte, and an anode. One example cathode comprises a catalyst, an electronic conductor and a hydrophobic gas permeable binder. The open electrochemical cells may function as metal-air batteries.

• Metal-air batteries are suitable for use in relatively small, portable, electrically-powered functional devices
• Partially alleviate gas accumulation and cathode consumption issues typical of primary alkaline batteries
• Increases mechanical integrity
• Suitable oxygen permeability
• Suitable gas permeability to assist in the alleviation of gas accumulation in the open electrochemical cell

• Cellular phones, voice recording and playing devices, watches, motion and still cameras, liquid crystal displays, electronic calculators, IC cards, temperature sensors, hearing aids, pressure sensitive devices and transmitters of various types.

Patent Application: WO 2009/135030 A1

https://encrypted.google.com/patents/WO2009135030A1?cl=en