SBIR Phase II: Advanced Carbon Electrodes to Reduce Ultracapacitor Size and Cost

这个小型企业创新研究(SBIR)第二阶段项目将开发用于超级电容器的先进碳电极材料。目前，超级电容器的电压限制在2.3-2.7V/cell。新的碳基电极材料有望将电池的电势极限提高到3.6V，鉴于能量密度与电池电势的二次关系，这些材料将使超级电容器的储能能力提高100%。增加的电池电势将通过减少达到给定额定电压所需的电池数量来减小器件尺寸和成本。第二阶段将证明这些材料可以承受长时间的高电压充放电循环。将开发一种可扩展的工艺来生产新的碳电极材料。该项目的商业潜力是用于便携式电子设备、电源调节(UPS)和机电执行器中的超级电容器。其他应用包括为间歇性高功率负载(例如再生制动、发动机启动、机电阀门和电动助力转向)提供服务的混合电动汽车和传统汽车。

This Small Business Innovation Research (SBIR) Phase II project will develop advanced carbon electrode materials for ultracapacitors. Presently, ultracapacitor voltages are limited to 2.3 - 2.7 V/cell. New carbonaceous electrode materials are expected to increase cell potential limits to 3.6 V. Given the quadratic dependence of energy density on cell potential, these materials will increase ultracapacitor energy storage by 100%. The increased cell potential will reduce device size and cost by reducing the number of cells required to attain a given voltage rating. Phase II will demonstrate that these materials can withstand extended charge/discharge cycling to high voltage. A scalable process will be developed to produce the new carbon electrode materials. Prototype ultracapacitors will be produced to support customer demonstrations.The commercial potential of this project is for ultracapacitors that are used in portable electronic devices, power conditioning (UPS), and electromechanical actuators. Additional applications include hybrid electric and conventional vehicles to service intermittent high power loads (e.g. regenerative braking, engine start, electromechanical valves, and electric power steering).