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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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High energy anode and cathode development, electrolyte encapsulation, tape activation, and parasitic operation techniques for dry tape battery concept
Polymer separator materials for heat sterilizable battery
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Numerical simulation of compressible multiphase flows based on the four-equation (homogeneous relaxation) model is known to suffer from two fundamental difficulties with (a) wave propagation and (b) pressure equilibrium preservation. First, the mixture sound speed exhibits non-monotonic dependency with respect to the volume fraction, which leads to robustness issues in the resolution of shocks and acoustic wave propagation across two-phase regions. This difficulty can be mitigated by solving Allaire’s five-equation model augmented with infinitely fast phasic temperature equilibrium, from which solutions of the four-equation model can be recovered. However, when temperature is non-uniform, this augmented five-equation formulation still fails to preserve pressure equilibrium across material interfaces. In this work, we propose a fully conservative numerical scheme that exactly preserves pressure equilibrium at the discrete level for the augmented five-equation model, for arbitrary initial distributions of temperature and volume fraction. Combined with the monotonic sound speed property of the five-equation formulation, the proposed pressure-equilibrium preserving scheme significantly improves robustness in the presence of strong multiphase interactions, including shock–interface interactions and advection of material interfaces.
Cell discharge measurements for dry tape battery couple - anode and cathode development in aqueous and nonaqueous electrolytes
Low temperature batteries for deep space probes and extending battery usefulness by heating
Aqueous and nonqueous electrolytic actions, and energy density measurements for dry tape battery
Inorganic separator for high temperature silver-zinc battery
Filler and matrix composite materials for use in silver-zinc battery separators
Thin film and semiconductor microelectronics, radar scattering, radome thermal stress, boundary layer phenomena, guided missile parts, turbulent mixing, antenna systems, and plasma dynamics
Inorganic fillers and pressure effects on films for separators for heat sterilizable silver zinc battery
Primary zinc-silver oxide battery - separator material, construction, and prototype cell evaluation
Test of electrochemical cell and local action mechanisms of wet cell battery for space probe applications
Dry tape battery concept - cathode and anode research, energy densities, tape cell preparation, and supporting research
Silver-cadmium secondary battery energy storage system using vented cells for manned orbital spacecraft
High energy density primary battery development - anode-electrolyte, cupric fluoride cathode, and chemical stability tests
Development of battery with lithium-magnesium alloy anode, molten cuprous chloride cathode, and zeolite separator cells and cupric oxide cathode and porous glass separator cells
Highly conductive nonaqueous electrolytes for high energy battery