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Paper Abstract and Keywords
Presentation 2012-10-11 14:00
Feasibility Study on Supercapacitors as Alternative to Secondary Batteries in Spacecraft Power Systems
Masatoshi Uno, Akio Kukita (JAXA) SANE2012-88
Abstract (in Japanese) (See Japanese page) 
(in English) The feasibility of supercapacitors (SCs), including electric double-layer capacitors (EDLCs) and lithium-ion capacitors (LICs), as alternative energy sources to secondary batteries is discussed on the basis of a comparison with lithium-ion batteries (LIBs). Charge-discharge cycle testing emulating typical load profiles of low-Earth orbit (LEO) spacecrafts was performed to investigate life performance of SCs, and outstanding life performance of SCs even at deep depth of discharge (DoD) was experimentally verified. A constant power (CP) charging scheme is introduced to save the mass of photovoltaic (PV) arrays for SC-based power systems. The mass of LIB-, EDLC-, and LIC-based power systems were compared for a 1 kW LEO spacecraft. The comparative analysis indicated that LICs can be alternative energy storage sources to LIBs that are operated at shallow DoD to achieve long cycle life, even from the power system mass view point.
Keyword (in Japanese) (See Japanese page) 
(in English) Constant power charging / Electric double-layer capacitor / Lithium-ion battery / Lithium-ion capacitor / / / /  
Reference Info. IEICE Tech. Rep., vol. 112, no. 229, SANE2012-88, pp. 181-186, Oct. 2012.
Paper # SANE2012-88 
Date of Issue 2012-10-03 (SANE) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee SANE  
Conference Date 2012-10-10 - 2012-10-12 
Place (in Japanese) (See Japanese page) 
Place (in English) The SONGDO CONVENSIA, Incheon Korea 
Topics (in Japanese) (See Japanese page) 
Topics (in English) ICSANE 2012 (International Conference on Space, Aeronautical and Navigational Electronics) 
Paper Information
Registration To SANE 
Conference Code 2012-10-SANE 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Feasibility Study on Supercapacitors as Alternative to Secondary Batteries in Spacecraft Power Systems 
Sub Title (in English)  
Keyword(1) Constant power charging  
Keyword(2) Electric double-layer capacitor  
Keyword(3) Lithium-ion battery  
Keyword(4) Lithium-ion capacitor  
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1st Author's Name Masatoshi Uno  
1st Author's Affiliation Japan Aerospace Exploration Agency (JAXA)
2nd Author's Name Akio Kukita  
2nd Author's Affiliation Japan Aerospace Exploration Agency (JAXA)
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Speaker Author-1 
Date Time 2012-10-11 14:00:00 
Presentation Time 20 minutes 
Registration for SANE 
Paper # SANE2012-88 
Volume (vol) vol.112 
Number (no) no.229 
Page pp.181-186 
#Pages
Date of Issue 2012-10-03 (SANE) 


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