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首页> 外文期刊>IEEE Aerospace and Electronic Systems Magazine >Performance characteristics of lithium-ion cells for NASA's Mars2001 Lander application
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Performance characteristics of lithium-ion cells for NASA's Mars2001 Lander application

机译：NASA的Mars2001 Lander应用锂离子电池的性能特征

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NASA requires lightweight rechargeable batteries for future missions to Mars and the outer planets that are capable of operating over a wide range of temperatures, with high specific energy and energy densities. Due to the attractive performance characteristics, lithium-ion batteries have been identified as the battery chemistry of choice for a number of future applications, including Mars rovers and landers. The Mars 2001 Lander (Mars Surveyor Program MSP 01) will be one of the first missions which will utilize lithium-ion technology. This application will require two lithium-ion batteries, each being 28 V (eight cells), 25 Ah and 8 kg. In addition to the requirement of being able to supply at least 200 cycles and 90 days of operation on the surface of Mars, the battery must be capable of operation (both charge and discharge) at temperatures as low as -20°C. To assess the viability of lithium-ion cells for these applications, a number of performance characterization tests have been performed, including: assessing the room temperature cycle life, low temperature cycle life (-20°C), rate capability as a function of temperature, pulse capability, self-discharge and storage characteristics, as well as mission profile capability. This paper describes the Mars 2001 Lander mission battery requirements and contains results of the cell testing conducted to-date in support of the mission,
机译：NASA需要轻巧的可充电电池来执行未来的火星及外行星飞行任务，这些电池能够在高温度范围内以高比能量和能量密度运行。由于具有吸引人的性能特征，锂离子电池已被确定为包括火星漫游者和着陆器在内的许多未来应用的首选电池化学成分。 2001年火星登陆器（火星测量师计划MSP 01）将是首批利用锂离子技术的任务之一。此应用将需要两个锂离子电池，每个锂离子电池为28 V（八个电池），25 Ah和8 kg。除了要求能够在火星表面上提供至少200个循环和90天的工作能力外，电池还必须能够在-20°C的低温下工作（充电和放电）。为了评估锂离子电池在这些应用中的生存能力，已进行了许多性能表征测试，包括：评估室温循环寿命，低温循环寿命（-20°C），速率能力随温度的变化，脉冲功能，自放电和存储特性以及任务配置文件功能。本文介绍了“火星” 2001年着陆器飞行任务电池的要求，并包含了迄今为止为支持飞行任务而进行的电池测试的结果，

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