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j.phpro.2015.07.087.pdf4.72 MBAdobe PDF見る/開く
タイトル: First Imaging Experiment of a Lithium Ion Battery by a Pulsed Neutron Beam at J-PARC/MLF/BL09
著者: Kino, Koichi
Yonemura, Masao
Kiyanagi, Yoshiaki
Ishikawa, Yoshihisa
Parker, Joseph. Don.
Tanimori, Toru
Kamiyama, Takashi
著者名の別形: 谷森, 達
キーワード: Imaging
Pulsed neutron beam
Li-ion battery
J-PARC
BL09
発行日: 2015
出版者: Elsevier BV
誌名: Physics Procedia
巻: 69
開始ページ: 612
終了ページ: 618
抄録: We obtain the transmission image of a commercial lithium ion (Li-ion) battery using a pulsed neutron beam at the beamline 09 of the Materials and Life Science Experimental Facility at the Japan Proton Accelerator Research Complex. The purpose of this study is to improve the performance of the Li-ion battery by nondestructive observation of its charging and discharging. The transmission images for three charge states (3.2 V, 3.7 V, and 4.2 V) reveal differences between these three states, which we attribute to electrolyte migration. The transmission spectra show Bragg edges originating from the electrodes, current collectors, and battery vessel. Although the battery as a whole has the expected relation between the charge accumulation and the quantity of lithium amounts in the positive and negative electrodes, a portion of the battery deviates from this relation, which may imply a position dependent charging in the battery.
著作権等: © 2015 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license(http://creativecommons.org/license/by-nc-nd/4.0/)
URI: http://hdl.handle.net/2433/226434
DOI(出版社版): 10.1016/j.phpro.2015.07.087
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