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Metals
Special Issues
Strength and Fracture of Metal Parts in Batteries
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Strength and Fracture of Metal Parts in Batteries

A special issue of Metals (ISSN 2075-4701). This special issue belongs to the section "Metal Failure Analysis".

Deadline for manuscript submissions: closed (31 May 2022) | Viewed by 4147

Special Issue Editor

Prof. Kazuhisa Sato

E-Mail Website
Guest Editor
Fracture and Reliability Research Institute, Graduate School of Engineering, Tohoku University, Tohoku, Japan
Interests: solid oxide fuel cells; solid-state batteries; reliability; durability; non-destructive evaluation methods; in-situ observation methods

Special Issue Information

Dear Colleagues:

Ensuring the reliability of all-solid-state batteries has become one of the most important considerations for their commercialization. In particular, since metals and metal oxides are the main constituents of all-solid-state batteries, it is very important to know their basic properties. Based on this motivation, this Special Issue aims to provide a forum for academia and industry to disseminate the latest results on the experimental and theoretical mechanical properties of metal and metal oxide materials, which are candidate constituent materials for rechargeable batteries and fuel cells.

Prof. Kazuhisa Sato
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Metals is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Solid-state electrochemical devices
  • Batteries
  • Fuel cells
  • Strength
  • Fracture
  • Creep
  • Fatigue
  • Metal
  • Metal Oxide

Published Papers (2 papers)

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Research

14 pages, 1529 KiB  
Article
In Situ Evaluation of the Influence of Interstitial Oxygen on the Elastic Modulus of La2NiO4
by Yuta Kimura, Takashi Nakamura, Koji Amezawa, Keiji Yashiro and Tatsuya Kawada
Metals 2021, 11(12), 1889; https://doi.org/10.3390/met11121889 - 24 Nov 2021
Viewed by 1362
Abstract
Lattice defects significantly affect the mechanical properties of crystalline metal oxides. The materials for the components of solid oxide fuel cells (SOFCs) are no exception, and hence understanding of the interplay between lattice defects and the mechanical properties of components is important to [...] Read more.
Lattice defects significantly affect the mechanical properties of crystalline metal oxides. The materials for the components of solid oxide fuel cells (SOFCs) are no exception, and hence understanding of the interplay between lattice defects and the mechanical properties of components is important to ensure the mechanical stability of SOFCs. Herein, we performed an in situ evaluation of the temperature and P(O2) dependence of the elastic moduli of La2NiO4 (LN214), a candidate for the cathode material of SOFCs, using the resonance method to understand the influence of interstitial oxygen on its elastic properties. Above 873 K, both the Young’s and shear moduli of LN214 slightly decreased with increasing P(O2), suggesting that these elastic moduli are correlated with interstitial oxygen concentration and decreased with increasing interstitial oxygen. We analyzed the influence of interstitial oxygen on the Young’s modulus of LN214, based on numerically obtained lattice energy. The P(O2) dependence of the Young’s modulus of LN214 was found to be essentially explained by variation in the c-lattice constant, which was triggered by variation in interstitial oxygen concentration. These findings may contribute to a better understanding of the relationship between lattice defects and mechanical properties, and to the improvement of the mechanical stability of SOFCs. Full article
(This article belongs to the Special Issue Strength and Fracture of Metal Parts in Batteries)
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14 pages, 2070 KiB  
Article
High-Temperature Elastic Properties of Yttrium-Doped Barium Zirconate
by Fumitada Iguchi and Keisuke Hinata
Metals 2021, 11(6), 968; https://doi.org/10.3390/met11060968 - 16 Jun 2021
Cited by 8 | Viewed by 2099
Abstract
The elastic properties of 0, 10, 15, and 20 mol% yttrium-doped barium zirconate (BZY0, BZY10, BZY15, and BZY20) at the operating temperatures of protonic ceramic fuel cells were evaluated. The proposed measurement method for low sinterability materials could accurately determine the sonic velocities [...] Read more.
The elastic properties of 0, 10, 15, and 20 mol% yttrium-doped barium zirconate (BZY0, BZY10, BZY15, and BZY20) at the operating temperatures of protonic ceramic fuel cells were evaluated. The proposed measurement method for low sinterability materials could accurately determine the sonic velocities of small-pellet-type samples, and the elastic properties were determined based on these velocities. The Young’s modulus of BZY10, BZY15, and BZY20 was 224, 218, and 209 GPa at 20 °C, respectively, and the values decreased as the yttrium concentration increased. At high temperatures (>20 °C), as the temperature increased, the Young’s and shear moduli decreased, whereas the bulk modulus and Poisson’s ratio increased. The Young’s and shear moduli varied nonlinearly with the temperature: The values decreased rapidly from 100 to 300 °C and gradually at temperatures beyond 400 °C. The Young’s modulus of BZY10, BZY15, and BZY20 was 137, 159, and 122 GPa at 500 °C, respectively, 30–40% smaller than the values at 20 °C. The influence of the temperature was larger than that of the change in the yttrium concentration. Full article
(This article belongs to the Special Issue Strength and Fracture of Metal Parts in Batteries)
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