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Paper Abstract and Keywords
Presentation 2011-02-10 14:00
Electrochemical properties of ramsdellite-type lithium titanium oxides as negative electrode material for lithium secondary batteries
Elly Setiawati, Masahiko Hayashi, Masaya Takahashi, Takahisa Shodai, Keiichi Saito (NTT Corp.) EE2010-45 CPM2010-139
Abstract (in Japanese) (See Japanese page) 
(in English) The development of lithium secondary battery for backup power application is being focused mainly on the safety and capacity issue. In terms of safety, intense research is under way on developing negative electrode made of oxide materials, which have a positive potential towards Li metal. A spinel-type lithium titanium oxides (LTO) has recently been commercialized because of its structural stability upon Li ion insertion/extraction, which provides a long cycle life. However, its capacity value of 175 mAh/g is much lower than that of the conventionally used graphite of 372 mAh/g. This study introduces the high capacity of lithium titanium oxides with ramsdellite structure, and describes its synthesis and its electrochemical characteristics as a negative electrode material for lithium secondary batteries. By applying a post annealing treatment, we improved the discharge capacity to 260 mAh/g.
Keyword (in Japanese) (See Japanese page) 
(in English) Lithium secondary battery / negative electrode material / lithium titanium oxide / ramsdellite structure / / / /  
Reference Info. IEICE Tech. Rep., vol. 110, no. 412, CPM2010-139, pp. 19-23, Feb. 2011.
Paper # CPM2010-139 
Date of Issue 2011-02-03 (EE, CPM) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
and
reproduction		 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)
Download PDF EE2010-45 CPM2010-139

Conference Information
Committee EE CPM  
Conference Date 2011-02-10 - 2011-02-10 
Place (in Japanese) (See Japanese page) 
Place (in English) Kikai-Shinko-Kaikan Bldg. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To CPM 
Conference Code 2011-02-EE-CPM 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Electrochemical properties of ramsdellite-type lithium titanium oxides as negative electrode material for lithium secondary batteries 
Sub Title (in English)  
Keyword(1) Lithium secondary battery  
Keyword(2) negative electrode material  
Keyword(3) lithium titanium oxide  
Keyword(4) ramsdellite structure  
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1st Author's Name Elly Setiawati  
1st Author's Affiliation NTT Enerty and Environment System Laboratories, Nippon Telegraph and Telephone Corporation (NTT Corp.)
2nd Author's Name Masahiko Hayashi  
2nd Author's Affiliation NTT Enerty and Environment System Laboratories, Nippon Telegraph and Telephone Corporation (NTT Corp.)
3rd Author's Name Masaya Takahashi  
3rd Author's Affiliation NTT Enerty and Environment System Laboratories, Nippon Telegraph and Telephone Corporation (NTT Corp.)
4th Author's Name Takahisa Shodai  
4th Author's Affiliation NTT Enerty and Environment System Laboratories, Nippon Telegraph and Telephone Corporation (NTT Corp.)
5th Author's Name Keiichi Saito  
5th Author's Affiliation NTT Enerty and Environment System Laboratories, Nippon Telegraph and Telephone Corporation (NTT Corp.)
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Speaker Author-1 
Date Time 2011-02-10 14:00:00 
Presentation Time 25 minutes 
Registration for CPM 
Paper # EE2010-45, CPM2010-139 
Volume (vol) vol.110 
Number (no) no.411(EE), no.412(CPM) 
Page pp.19-23 
#Pages 5 
Date of Issue 2011-02-03 (EE, CPM) 

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