Axion Power International, Inc., a development stage company, engages in the research and development of a technology for the production of lead-acid-carbon energy storage devices. Its proprietary lead/carbon (PbC) technology owns six issued patents and nine pending patent applications in the United States. The company is testing its PbC battery design that uses carbon electrode assemblies to replace the lead-based negative electrodes, which are used in conventional lead-acid batteries. It also manufactures specialty batteries for resale. The company was founded in 2003 and is based in New Castle, Pennsylvania.

 

Graphene Energy, Inc is leading the development of next generation nano-technology based ultra-capacitors for energy storage. Existing battery technologies fail to address the marketplace needs for high-power energy storage. With significant emphasis on renewable energy, including a rapid ramp-up of Solar, Wind and Geothermal technologies and government mandated requirements for high efficiency vehicles, there is a critical need for cost-effective, high-power and high-capacity energy storage solutions. Graphene has been one of the most promising materials for ultra-capacitor electrodes with expectation of power densities surpassing any other known form of activated Carbon electrodes due to its large and readily accessible surface area.
 
Unlike batteries, ultra-capacitors can store and deliver energy in very short time, thus making them most suitable for high power density applications. Furthermore, a combination of ultra-capacitors and traditional batteries are identified as the most cost effective and reliable solution for applications where lifecycle and reliability are paramount. Applications of this material and technology include regenerative braking in electric and hybrid vehicles, energy balancing for power grid, storage for Solar and Wind and Geothermal plants, hydraulic and actuator systems requiring high power densities, etc.

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Gravity Power LLC

 

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H2Scan, Corporation

H2Scan, Corporation is the leading provider of high performance hydrogen specific sensor systems that provide accurate monitoring and control functions for a wide range of applications, including control systems, safety monitoring and alarm systems. H2scan also provides portable, handheld configurations for easy leak detection and monitoring. This ability is key in semiconductor plants, nuclear facilities and nuclear reactors.

 

H2scan's hydrogen specific sensing systems based on a patented "Chip on a flex" technology are able to detect and measure hydrogen without false readings or expensive support equipment required. The sensing systems are able to detect hydrogen in air down to 15 ppm concentration over a wide range of temperatures without cross-sensitivities to other gases. The ability to operate with or without the presence of oxygen with no interference from CO, sulfur or chlorine separates H2scan from all other in-line measuring technologies.

 

The company’s solid-state technology was developed at Sandia National Laboratory and the U.S. Department of Energy and is only available commercially through H2scan.