By A. Zimmerman
ISBN-10: 1615832602
ISBN-13: 9781615832606
ISBN-10: 1884989209
ISBN-13: 9781884989209
Nickel-hydrogen battery cells supply one of many longest-lived and most efficient rechargeable battery platforms ever built. The Aerospace company used to be instrumental within the learn, improvement, and checking out of such batteries. essentially built to be used in satellite tv for pc and area energy platforms, their really lengthy lifestyles was once worth the excessive price linked to the know-how, they usually quickly changed lots of the nickel-cadmium batteries utilized in prior satellites. This e-book offers the reader with an in-depth view of nickel-hydrogen mobilephone know-how: the way it was once built, How and why it really works, the right way to enforce and discover its final power, and What can get it wrong whether it is no longer thoroughly managed.
- info and data showing during this publication are for informational reasons in simple terms. AIAA and the writer aren't answerable for any harm or harm because of use or reliance, nor do AIAA and the writer warrant that use or reliance may be unfastened from privately owned rights.
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Extra info for Nickel-Hydrogen Batteries - Principles and Practice
Sample text
Each of the other cell manufacturers developed their own versions of the ManTech cell design that used many of the key changes developed in the Yardney ManTech Program, but included other major improvements specific to each manufacturer. The following section describes many of these second-generation cell designs. 5 Second-Generation Cell Designs In the five years following the ManTech program, a number of changes occurred both in the nickel-hydrogen cell manufacturing industry and in the cell designs that were being produced.
These changes result in significant decreases in recharge voltage and increases in discharge voltage, as well as improved capacity and reduced degradation rates. Cells of this design are being tested at The Aerospace Corporation to evaluate their capability for long-term cycling at 60% depth of discharge. If the cells can reliably operate for 60,000 cycles or more at 60% depth of discharge, their improved capability, as compared to that of standard cells, would more than compensate for the slightly higher weight.
During the next several years a number of single pressure vessel nickel-hydrogen battery variations were produced, each providing somewhat better performance than the last. The technical issues in making a single pressure vessel battery operate reliably over a long cycle life were daunting. These issues included removing heat, maintaining all electrolyte within each cell while allowing hydrogen to flow into and out of each cell, recombining all oxygen within the cell in which it was generated, handling popping in the cells, and minimizing the impacts of a leak in the single pressure vessel.
Nickel-Hydrogen Batteries - Principles and Practice by A. Zimmerman
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