In-situ measurement of the lithium distribution in Li-ion batteries using micro-IBA techniques

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS

卷:371

Article; Proceedings Paper

Yamazaki, A.¹  Orikasa, Y.²  Chen, K.²  Uchimoto, Y.²  Kamiya, T.³  Koka, M.³  Satoh, T.³  Mima, K.⁴  Kato, Y.⁴  Fujita, K.⁴ 

[1] Univ Tsukuba, Fac Pure & Appl Sci, 1-1-1 Tennodai, Tsukuba, Ibaraki 3058577, Japan

[2] Kyoto Univ, Grad Sch Human & Environm Studies, Sakyo Ku, Yoshida Nihonmatsucho, Kyoto 6068501, Japan

[3] Japan Atom Energy Agcy, Takasaki Adv Radiat Res Inst, 1233 Watanuki Machi, Takasaki, Gunma 3701292, Japan

[4] Grad Sch Creat New Photon Ind, Nishi Ku, 1955-1 Kurematsu, Hamamatsu, Shizuoka 4311202, Japan

关键词: PIGE;    Microbeam scanning;    Lithium-ion battery;    Lithium distribution;    In-situ measurement;   

DOI  :  10.1016/j.nimb.2015.10.042

来源: Elsevier

【 摘 要 】

Direct observation of lithium concentration distribution in lithium-ion battery composite electrodes has been performed for the first time. Lithium-ion battery model cells for particle induced X-ray emission (PIXE) and particle induced gamma ray emission (PIGE) measurements were designed and fabricated. Two dimensional images of lithium concentration in LiFePO4 composite electrodes were obtained with PIXE and PIGE by scanning the proton microbeam for various charged states of the electrodes. Lithium concentration in LiFePO4 composite electrodes was decreased from the contact interface between LiFePO4 electrode and liquid electrolyte during the charge reaction. (C) 2015 Elsevier B.V. All rights reserved.

【 授权许可】

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