喷气推进实验室的锂微电池开发

Sixteenth Annual Battery Conference on Applications and Advances. Proceedings of the Conference (Cat. No.01TH8533) Pub Date : 2001-01-09 DOI:10.1109/BCAA.2001.905131

W. West, J. Whitacre, E. Brandon, B. Ratnakumar

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引用次数: 15

摘要

近年来，利用MEMS技术、集成无源元件和低功耗电子器件实现航天器组件小型化的努力取得了成功，这推动了对微/纳米航天器应用中非常低功耗、低轮廓、低质量微电源的需求。喷气推进实验室最近的工作重点是开发与温度敏感基板兼容的薄膜/微型电池。提出了一种采用射频溅射和中等退火温度(<700/spl℃)制备LiCoO/sub /薄膜的工艺。用该工艺制备的阴极膜薄膜电池的比容量接近LiCoO/sub /的实际极限，具有可接受的倍率能力和放电电压曲线。固态微型电池也已被制造出来，其特征尺寸约为50微米。

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Lithium micro-battery development at the Jet Propulsion Laboratory

Recent successes in the effort to miniaturize spacecraft components using MEMS technology, integrated passive components, and low power electronics have driven the need for very low power, low profile, low mass micro-power sources for micro/nanospacecraft applications. Recent work at JPL has focused upon developing thin film/micro-batteries compatible with temperature sensitive substrates. A process to prepare crystalline LiCoO/sub 2/ films with RF sputtering and moderate (<700/spl deg/C) annealing temperature has been developed. Thin film batteries with cathode films prepared with this process have specific capacities approaching the practical limit for LiCoO/sub 2/, with acceptable rate capabilities and discharge voltage profiles. Solid state micro-scale batteries have also been fabricated, with feature sizes on the order of 50 microns.

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Sixteenth Annual Battery Conference on Applications and Advances. Proceedings of the Conference (Cat. No.01TH8533)

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