155 research outputs found
Factors Affecting Nickel-oxide Electrode Capacity in Nickel-hydrogen Cells
The nickel-oxide electrode common to the nickel hydrogen and nickel cadmium cell is by design the limiting or capacity determining electrode on both charge and discharge. The useable discharge capacity from this electrode, and since it is the limiting electrode, the useable discharge capacity of the cell as well, can and is optimized by rate of charge, charge temperature and additives to electrode and electrolyte. Recent tests with nickel hydrogen cells and tests performed almost 25 years ago with nickel cadmium cells indicate an improvement of capacity as a result of using increased electrolyte concentration
Additional Reversal Characteristics of Sealed Nickel Cadmium Cells
The reversal characteristics of nickel cadmium cells are discussed. The evolution of hydrogen from the positive electrode is described when the nickel cadmium cell is completely discharged. Results indicate that one ampere hour of overdischarge in reversal can generate enough hydrogen to increase the cell pressure of an average size cell, 20- to 50-ampere hour cell, by 120 psi
The importance of community development for health and well-being
Public health - Economic aspects
Investigation of battery active nickel oxides First quarterly report
X-ray diffraction patterns of nickel-cadmium battery electrodes and stabilization of nickel oxides and hydroxide
To Err is Human: Can American Medicine Learn from Past Mistakes?
The history of medicine includes many errors. Some persisted for decades and caused great harm. Several are highlighted in this article, including the mythical thymic diseases: thymic asthma and status thymicolymphaticus. Some medical mistakes, such as the diet-heart hypothesis of Ancel Keys, continue to cause harm. To avoid future errors and their associated harm, I suggest a cultural shift encouraging professional humility and greater questioning of medical dogma. Medical education focused on teaching students this history may help with this cultural shift
Investigation of battery active nickel oxides third quarterly report, 13 dec. 1964 - 13 mar. 1965
X-ray diffraction, differential thermal analysis, and chemical analysis of sintered nickel electrode at graphitic level and high temperature
Investigation of battery active nickel oxides Final report
Identification and characterization of battery active compound structures formed on nickel oxide electrode during charging and dischargin
Investigation of battery active nickel oxides first quarterly report, 11 jun. - 11 sep. 1964
Forming, sintering, and X-ray diffraction patterns of nickel oxide electrode for batterie
Deep Discharge Reconditioning and Shorted Storage of Batteries
The identification and measurement of hydrogen recombination in sealed nickel-cadium cells makes deep reconditioning on a battery basis safe and feasible. Deep reconditioning improves performance and increases life of nickel-cadium batteries in geosynchronous orbit applications. The hydrogen mechanism and supporting data are presented. Parameter cell design experiments are described which led to the definition of nickel-cadium cells capable of high rate overdischarge without detriment to specific energy. Nickel-cadium calls of identical optimum design were successfully cycled for 7 seasons in simulation of geosynchronous orbit at 75 percent depth-of-discharge with extensive midseason and end-of-season overdischarge at rates varying from C/20 to C/4. Destructive physical analysis and cyclin data indicated no deterioration or the development of dangerous pressures as a result of the cycling with overdischarge
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