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首页> 外文期刊>IEEE Aerospace and Electronic Systems Magazine >Validation test of 125 Ah advanced design IPV nickel-hydrogen flight cells
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Validation test of 125 Ah advanced design IPV nickel-hydrogen flight cells

机译：125 Ah高级设计IPV镍氢飞行电池的验证测试

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摘要

An update of validation test results confirming the advanced design nickel-hydrogen cell is presented. An advanced 125 Ah individual pressure vessel (IPV) nickel-hydrogen cell was designed for storing and delivering energy for long-term, low-earth-orbit (LEO) spacecraft missions. The new features of this design are: the use of 26% rather than 31% potassium hydroxide (KOH) electrolyte; a patented catalyzed wall wick; serrated-edge separators to facilitate gaseous oxygen and hydrogen flow within the cell, while maintaining physical contact with the wall wick for electrolyte management; and a floating rather than a fixed stack to accommodate nickel electrode expansion. The resulting improvements include extended cycle life and enhanced thermal, electrolyte, and oxygen management; and accommodation of nickel electrode expansion. Six 125-Ah flight cells based on this design are in the process of being evaluated in a LEO cycle life test.
机译：验证测试结果的更新，证实了先进设计的镍氢电池。先进的125 Ah个人压力容器（IPV）镍氢电池设计用于存储和传递能量，以进行长期的低地球轨道（LEO）航天器飞行任务。该设计的新功能是：使用26％而不是31％的氢氧化钾（KOH）电解质；专利催化墙芯；锯齿状边缘分离器有助于气态氧气和氢气在电池内流动，同时保持与壁芯的物理接触以进行电解质管理；浮动的而不是固定的堆叠以适应镍电极的膨胀。由此带来的改进包括延长循环寿命以及增强热，电解质和氧气管理；和容纳镍电极的膨胀。正在进行基于LEO循环寿命测试的六个基于该设计的125 Ah飞行单元。

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