low temperature environment, storage stability, lithium ion cell, open circuit voltage, charge/discharge cycle test, current density, aerospace environment, freezing, electrolyte
その他のタイトル（英）
Investigation of low temperature storage of Li ion cells for space applications
Furukawa Battery Co. Ltd.
Furukawa Battery Co. Ltd.
Furukawa Battery Co. Ltd.
Japan Aerospace Exploration Agency Institute of Space and Astronautical Science
Japan Aerospace Exploration Agency Institute of Space and Astronautical Science
Japan Aerospace Exploration Agency Institute of Space and Astronautical Science
出版者
宇宙航空研究開発機構宇宙科学研究本部
出版者（英）
Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA/ISAS)
雑誌名
第24回宇宙エネルギーシンポジウム 平成16年度
雑誌名(英)
The Twenty-fourth Space Energy Symposium March 7, 2005
ページ
6 - 10
発行年
2005-06
抄録（英）
Li ion cells for space applications possess a high specific energy and a high discharge voltage, and have recently begun to be adopted as space batteries in terms of their lightweight and reliability requirements. A variety of researches have been advanced for various applications. Until now, we have been researching the storage and the management methods of the Li ion cells as the batteries of spacecraft for planetary explorations. Because deterioration of Li ion cells occurs even under their unoperated condition, the research of the storage method is very important for their application to the power supply for the satellites. In general, degradations of charge/discharge characteristics of the Li ion cells are caused when they are stored under open circuit conditions during a long duration. The degradations become severe as their temperature and state of charge (SOC) increase. Then, we investigated charge/discharge characteristics and charge/discharge cycle characteristics of Li ion cells after they had been kept under various temperatures and SOC's for 12 months. As a result, it was confirmed that the deterioration effect of the battery characteristics during the low-temperature storage was extremely small.
宇宙用リチウムイオン電池の冷凍保管についての検討
