The performance of the lithium-ion secondary cells under micro-gravity conditions - in-orbit operation of the interplanetary spacecraft 'HAYABUSA'

Yoshitsugu Sone, Hiroki Ooto, Masaaki Kubota, Masahiro Yamamoto, Hiroyuki Yoshida, Takashi Eguro, Shigeru Sakai, Teiji Yoshida, Masatoshi Uno, Kazuyuki Hirose, Michio Tajima, Ju N.Ichiro Kawaguchi

研究成果: Article査読

12 被引用数 (Scopus)

抄録

'HAYABUSA' is a Japanese interplanetary spacecraft for the exploration of an asteroid named 'ITOKAWA.' The spacecraft is powered by a 13.2 Ah lithium-ion secondary battery. To realize maximum performance of the battery for long flight operation, the state-of-charge (SOC) of the battery was maintained at ca. 65% during storage in case it is required for contingency operations. To maintain this SOC condition, the battery is charged once a week. We further charge the battery up to 4.1 V/cell using bypass circuits to balance the cells every four months. The capacity of the battery was measured during the flight operation, which revealed the appropriate capacity for the expected mission.

本文言語English
ページ(範囲)518-522
ページ数5
ジャーナルElectrochemistry
75
7
DOI
出版ステータスPublished - 2007 7
外部発表はい

ASJC Scopus subject areas

  • 電気化学

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