Future satellite systems and interplanetary missions are projected to require power electronics and energy storage systems that are less massive and smaller than the current state of the art. Modern…

This is a Small Business Innovation Research (SBIR) Phase I contract awarded by NASA to Nanoramic, Inc. (doing business as Fastcap Systems Corp) to develop an ultracapacitor-based hybrid power supply for CubeSats. The contract, valued at $118,906, aims to address the power and energy storage needs of future satellite systems and interplanetary missions. The proposed solution will incorporate Fastcap's patented technology for ruggedized ultracapacitors to reduce the size and weight of conventional high-power energy storage while increasing power handling capability. This contract is set aside for small businesses and represents Fastcap's initial research and development efforts under the NASA SBIR program to advance ultracapacitor-based power supply technology for CubeSat applications.

Future satellite systems and interplanetary missions are projected to require power electronics and energy storage systems that are less massive and smaller than the current state of the art. Modern cubesats rely heavily on solar panels to provide the necessary energy for operation. Additionally, radioisotope thermoelectric generators (RTGS) are the primary source of energy responsible for supporting long duration missions where other sources of energy are not available or are logistically prohibitive to utilize. In both cases, to satisfy the electrical requirements of higher powered loads LI-ION battery solutions must increase in both weight and size. Fastcap systems is proposing an ultracapacitor based hybrid power supply (HPS) to dramatically reduce the size and weight of conventional high power energy storage solutions while increasing power handling capability. The proposed system will incorporate fastcaps patented technology for harsh environment and ruggedized ultracapacitors already proven in the oil and gas industry and currently being developed across multiple grants for space exploration. The targeted application that this proposal will focus on is a high power (>100W) HPS for integration into cubesats. Ultracapacitors have a relatively high power density that is roughly 10 to 100 times greater than LI-ION batteries and can be integrated into an energy storage system to both increase power handling capability and reduce the weight and size of a system designed for LI-ION batteries alone. The HPS will be responsible for charging and managing its ultracapacitor banks as well as performing system diagnostics that can be reported through the units communication port. The system will embrace modular design techniques similar to those already employed by fastcaps energy exploration systems and consist of two modules.