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Title: Ionic conduction in lithium ion battery composite electrode governs cross-sectional reaction distribution
Authors: Orikasa, Yuki
Gogyo, Yuma
Yamashige, Hisao
Katayama, Misaki
Chen, Kezheng
Mori, Takuya
Yamamoto, Kentaro  kyouindb  KAKEN_id  orcid (unconfirmed)
Masese, Titus
Inada, Yasuhiro
Ohta, Toshiaki
Siroma, Zyun
Kato, Shiro
Kinoshita, Hajime
Arai, Hajime
Ogumi, Zempachi
Uchimoto, Yoshiharu  kyouindb  KAKEN_id  orcid (unconfirmed)
Author's alias: 折笠, 有基
荒井, 創
小久見, 善八
内本, 喜晴
Issue Date: 19-May-2016
Publisher: Nature Publishing Group
Journal title: Scientific Reports
Volume: 6
Thesis number: 26382
Abstract: Composite electrodes containing active materials, carbon and binder are widely used in lithium-ion batteries. Since the electrode reaction occurs preferentially in regions with lower resistance, reaction distribution can be happened within composite electrodes. We investigate the relationship between the reaction distribution with depth direction and electronic/ionic conductivity in composite electrodes with changing electrode porosities. Two dimensional X-ray absorption spectroscopy shows that the reaction distribution is happened in lower porosity electrodes. Our developed 6-probe method can measure electronic/ionic conductivity in composite electrodes. The ionic conductivity is decreased for lower porosity electrodes, which governs the reaction distribution of composite electrodes and their performances.
Rights: This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit
DOI(Published Version): 10.1038/srep26382
PubMed ID: 27193448
Appears in Collections:Journal Articles

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