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title科学衛星PLANET-Cリチウムイオン電池の開発: その3
Other TitleDevelopment of Lithium-Ion Battery for the Venus Climate Orbiter "PLANET-C": Third Report
Author(jpn)大登, 裕樹; 大平, 賢治; 山本, 真裕; 江黒, 高志; 豊田, 裕之; 鵜野, 将年; 廣瀬, 和之; 田島, 道夫
Author(eng)Oto, Hiroki; Ohira, Kenji; Yamamoto, Masahiro; Eguro, Takashi; Toyota, Hiroyuki; Uno, Masatoshi; Hirose, Kazuyuki; Tajima, Michio
Author Affiliation(jpn)古河電池; 古河電池; 古河電池; 古河電池; 宇宙航空研究開発機構宇宙科学研究本部; 宇宙航空研究開発機構宇宙科学研究本部; 宇宙航空研究開発機構宇宙科学研究本部; 宇宙航空研究開発機構宇宙科学研究本部
Author Affiliation(eng)Furukawa Battery; Furukawa Battery; Furukawa Battery; Furukawa Battery; Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS); Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS); Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS); Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS)
Issue Date2010-02
PublisherInstitute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)
宇宙航空研究開発機構宇宙科学研究本部
Publication titleSpace Energy Symposium
宇宙エネルギーシンポジウム
Volume29
Publication date2010-02
Languagejpn
eng
AbstractIn recent years, lithium-ion cells having high discharge voltage and high energy density have been studied in many countries including Japan, the United States, and France for use as power supplies for devices in space.A lithium-ion cell having rated capacity of 13.2 Ah-developed for use in a space satellite by The Furukawa Battery Co. Ltd. and the first of its kind in the world-is onboard "Hayabusa", a planet exploration spacecraft developed by the Japan Aerospace Exploration Agency (JAXA) launched in May 2003. It is returning to the earth after acquiring samples from the asteroidItokawa.Based on fundamental technologies used in the cell for "Hayabusa" and for preparation for mounting on the "Planet-C" Venus probe scheduled for launch in spring 2010, we modified various performance parameters and developed a revised 23.5 Ah class lithium-ion cell. A simulated operation test was performed in "PLANET-C" provisional operational conditions using 23.5 Ah class lithium ion battery (EM cells) made for trial preceding evaluation; the validity of adaptability to the mission. A simulated operation test confirmed that the capacity deterioration of the cells in the "PLANET-C" mission would be suppressed to within the requirement limits.Based on development results, we produced a Flight model cell and performed assessment of durability in mechanical environments, and of safety. Evaluation of durability in mechanical environments consists of random vibration testing, sinusoidal wave vibration testing, and pyrotechnic shock testing. Through these asesments, we surveyed whether the developed cel's structure can sufficiently withstand vibrations and impacts occurring during launching of "Planet-C". Furthermore, we performed overcharge testing and external short-circuit testing as safety assessment tests.Results of assessments of durability in mechanical environments have revealed no failure or abnormal heat generation of the cell in any test. No cell abnormality such as a sudden drop of cell voltage has occurred. Safety assessments have confirmed that fracture, ignition, actuation of the pressure relief valve and a sudden temperature rise did not occur in either the overcharge test or the external short-circuit test.
Description形態: カラー図版あり
会議情報: 第29回宇宙エネルギーシンポジウム(2010年2月26日, 宇宙航空研究開発機構宇宙科学研究本部相模原キャンパス)
形態: CD-ROM1枚
Original contains color illustrations
Meeting Information: The twenty-ninth Space Energy Symposium (February 26, 2010, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara)
Note: One CD-ROM
Document TypeConference Paper
JAXA Categoryシンポジウム・研究会
NCIDAN10324356
SHI-NOAA0064737001
URIhttps://repository.exst.jaxa.jp/dspace/handle/a-is/18369


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