Storage of a lithium-ion secondary battery under micro-gravity conditions

Yoshitsugu Sone, Hiroki Ooto, Masahiro Yamamoto, Takashi Eguro, Shigeru Sakai, Teiji Yoshida, Keiji Takahashi, Masatoshi Uno, Kazuyuki Hirose, Michio Tajima, Jun'ichiro Kawaguchi

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


'HAYABUSA' is a Japanese inter-planetary spacecraft built 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 a loss of attitude control. The capacity of the battery was measured during flight operations. Along with the operation in orbit, a ground-test battery was discharged, and both results showed a good agreement. This result confirmed that the performance of the lithium-ion secondary battery stored under micro-gravity conditions is predictable using a ground-test battery.

Original languageEnglish
Pages (from-to)149-154
Number of pages6
JournalJournal of Power Sources
Issue number1
Publication statusPublished - 2008 Jun 15
Externally publishedYes


  • Aerospace
  • In-orbit
  • Lithium-ion secondary cell
  • Micro-gravity
  • Satellite
  • Spacecraft

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering


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