Semi in-situ measurement of zincate ion concentration near zinc anode using background-oriented Schlieren technique
In metal-anode batteries such as zinc, the concentration of metal ions in the electrolyte usually plays a significant role in the metal electrodeposition upon charging. This study aims to clarify the concentration of zincate ions near the zinc anode. After preliminary experiments in a minichannel we...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2019-12-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.1.033162 |
| _version_ | 1797211584398884864 |
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| author | Yasumasa Ito Xiao Liang Kohei Ishikawa Toru Ujihara Yasuhiko Sakai Koji Iwano |
| author_facet | Yasumasa Ito Xiao Liang Kohei Ishikawa Toru Ujihara Yasuhiko Sakai Koji Iwano |
| author_sort | Yasumasa Ito |
| collection | DOAJ |
| description | In metal-anode batteries such as zinc, the concentration of metal ions in the electrolyte usually plays a significant role in the metal electrodeposition upon charging. This study aims to clarify the concentration of zincate ions near the zinc anode. After preliminary experiments in a minichannel were conducted to identify the system parameters, galvanostatic charging experiments in a zinc battery cell were conducted at current densities of 20 and 40mAcm^{−2}. The bulk concentrations of zincate ions were set to 0.49 and 0.98molL^{−1}. Images near the zinc anode were captured using an optical microscope to calculate the zincate ion concentration distribution through the background-oriented Schlieren (BOS) technique. They were taken at an equal time intervals to investigate the transition of the concentration diffusion layer. It was confirmed that the BOS technique enables us to quantitatively measure the zincate ion concentration in zinc anode batteries. The results are consistent with the theoretical expectation. The applied current density basically determines the concentration gradient near the anode surface, although it takes time to reach a steady state. The spatial variance in the zincate ion concentration at the anode surface increases with the distance from equilibrium. |
| first_indexed | 2024-04-24T10:28:49Z |
| format | Article |
| id | doaj.art-1fcaefef68c846339584b53f6f68a29e |
| institution | Directory Open Access Journal |
| issn | 2643-1564 |
| language | English |
| last_indexed | 2024-04-24T10:28:49Z |
| publishDate | 2019-12-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj.art-1fcaefef68c846339584b53f6f68a29e2024-04-12T16:47:33ZengAmerican Physical SocietyPhysical Review Research2643-15642019-12-011303316210.1103/PhysRevResearch.1.033162Semi in-situ measurement of zincate ion concentration near zinc anode using background-oriented Schlieren techniqueYasumasa ItoXiao LiangKohei IshikawaToru UjiharaYasuhiko SakaiKoji IwanoIn metal-anode batteries such as zinc, the concentration of metal ions in the electrolyte usually plays a significant role in the metal electrodeposition upon charging. This study aims to clarify the concentration of zincate ions near the zinc anode. After preliminary experiments in a minichannel were conducted to identify the system parameters, galvanostatic charging experiments in a zinc battery cell were conducted at current densities of 20 and 40mAcm^{−2}. The bulk concentrations of zincate ions were set to 0.49 and 0.98molL^{−1}. Images near the zinc anode were captured using an optical microscope to calculate the zincate ion concentration distribution through the background-oriented Schlieren (BOS) technique. They were taken at an equal time intervals to investigate the transition of the concentration diffusion layer. It was confirmed that the BOS technique enables us to quantitatively measure the zincate ion concentration in zinc anode batteries. The results are consistent with the theoretical expectation. The applied current density basically determines the concentration gradient near the anode surface, although it takes time to reach a steady state. The spatial variance in the zincate ion concentration at the anode surface increases with the distance from equilibrium.http://doi.org/10.1103/PhysRevResearch.1.033162 |
| spellingShingle | Yasumasa Ito Xiao Liang Kohei Ishikawa Toru Ujihara Yasuhiko Sakai Koji Iwano Semi in-situ measurement of zincate ion concentration near zinc anode using background-oriented Schlieren technique Physical Review Research |
| title | Semi in-situ measurement of zincate ion concentration near zinc anode using background-oriented Schlieren technique |
| title_full | Semi in-situ measurement of zincate ion concentration near zinc anode using background-oriented Schlieren technique |
| title_fullStr | Semi in-situ measurement of zincate ion concentration near zinc anode using background-oriented Schlieren technique |
| title_full_unstemmed | Semi in-situ measurement of zincate ion concentration near zinc anode using background-oriented Schlieren technique |
| title_short | Semi in-situ measurement of zincate ion concentration near zinc anode using background-oriented Schlieren technique |
| title_sort | semi in situ measurement of zincate ion concentration near zinc anode using background oriented schlieren technique |
| url | http://doi.org/10.1103/PhysRevResearch.1.033162 |
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