FastCAP proposes to develop an ultra-high power density and high frequency ultracapacitor capable of surviving over the wide temperature range of -60C to 130C and exhibiting peak gravimetric and volumetric power density of 120kW/kg and 150kW/L respectively. FastCAP is planning to design and prototype a hybrid system comprised of the proposed ultracapacitor in parallel with a high energy density, rechargeable, lithium ion battery showing at least 50% volume reduction and 100% lifetime increase compared to stand-alone lithium batteries, meeting long duration research balloon requirements. During Phase I, FastCAP will evaluate both novel under-development and off-the-shelf lithium chemistries utilized in aerospace applications. The resulting hybrid battery-ultracapacitor (HBU) system combines the benefits of both technologies and will meet NASA's scientific balloon requirements of energy density, power density, shelf life, temperature, reliability and cycle life. This ultracapacitor can also be coupled to a piezoelectric generator, thanks to a high cut off frequency greater than 500Hz. The proposed HBU system will enable significant improvements in the design of power storage for terrestrial and planetary balloons, reducing their weight, volume, and complexity, while improving performance and relaxing design constraints on scarce candidate battery technologies. Compared to today's high-rate reserve and rechargeable battery technologies, the proposed hybrid system will provide much higher power and higher energy density, show tremendous improvement in cycle lifetime, and show reduced risk of explosion and thermal runaway associated with high-rate discharge, thanks to the power buffering role of the ultracapacitor within the HBU system. In applications where batteries are currently oversized for power handling, dramatic reductions in total energy storage system weight will be achieved by complementing those batteries with ultracapacitors.
Potential NASA Commercial Applications: (Limit 1500 characters, approximately 150 words) The proposed 28 VDC hybrid aerospace graded ultracapacitor/battery module will be designed to power critical components needed for long duration terrestrial and planetary balloons. This innovative design will ensure available energy for more than 12 continuous hours using a lithium ion high energy density rechargeable battery (>200Wh/kg), and guaranteeing power delivery in the range of 100-1000 watts with the ultracapacitor pack. Phase II will focus on collaboration with an aerospace rated battery supplier (i.e. EaglePicher/Yardney) that has designed and produced high energy density batteries for previous space missions. We have received a letter of support from EaglePicher indicating a possible partnership leading to customized design work and testing validations specific to NASA requirements. Inclusion of a high power density ultracapacitor module working in parallel with a high energy battery pack will provide a considerable overall weight and volume reduction for the energy storage system with improved performance. NASA Potential applications include: Terrestrial and Planetary Balloons, specifically:* Long Duration Ballon/Ultra Long Duration Balloon Missions (LDB/ULDB)* Extra-terrestrial Balloon Missions (Venus In-Situ Explorer (VISE) and Titan Exploration)* Gamma-Ray Imager/Polarimeter for Solar flares (GRIPS)* Balloon Observation Platform for Planetary Science (BOPPS)* Super Pressure Balloon (SPB)
Potential NON-NASA Commercial Applications: (Limit 1500 characters, approximately 150 words) FastCAP has been engaged in business discussions over the past two years with several aerospace companies that design and manufacture flight systems, satellites, launch vehicles and spacecraft that use advanced information and communication systems. All of these applications require energy management systems. The Boeing Company and EaglePicher have submitted letters of support in conjunction with FastCAP's proposal, which we have attached in supporting documentation. Other relevant aerospace companies that showed interest to the proposed high power high energy power storage are Aerojet Rocketdyne, Lockheed Martin, and Raytheon. From this list, EaglePicher is the preferred partner during Phase II and III of FastCAP's proposal since they currently offer advance aerospace graded batteries. Other possible commercial applications are related to pulsed power, point of load power buffering, and load conditioning, including: satellites, planetary/asteroids missions, launch vehicles, high altitude UAVs, peak power harvester for solar arrays, electric propulsion systems, landers and rovers, and deep space mission.
Technology Taxonomy Mapping: (NASA's technology taxonomy has been developed by the SBIR-STTR program to disseminate awareness of proposed and awarded R/R&D in the agency. It is a listing of over 100 technologies, sorted into broad categories, of interest to NASA.) Actuators & Motors Characterization Distribution/Management Lifetime Testing Nanomaterials Nondestructive Evaluation (NDE; NDT) Prototyping Quality/Reliability Storage Telemetry/Tracking (Cooperative/Noncooperative; see also Planetary Navigation, Tracking, & Telemetry)
