Using electrical conductivity to determine particle sedimentation status of carbon-based slurry electrodes in electrochemical energy storage systems
This paper presents an experimental work conducted to understand how the dispersion stability and sedimentation state of a carbon-based slurry affect its electronic conductivity when particularly used in electrochemical energy storage applications. This work supports the possible concept of using el...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
KeAi Communications Co., Ltd.
2023-01-01
|
| Series: | Materials Science for Energy Technologies |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2589299123000071 |
| _version_ | 1797902981262213120 |
|---|---|
| author | Monjur Mourshed Huy Quoc Nguyen Bahman Shabani |
| author_facet | Monjur Mourshed Huy Quoc Nguyen Bahman Shabani |
| author_sort | Monjur Mourshed |
| collection | DOAJ |
| description | This paper presents an experimental work conducted to understand how the dispersion stability and sedimentation state of a carbon-based slurry affect its electronic conductivity when particularly used in electrochemical energy storage applications. This work supports the possible concept of using electronic conductivity as an indicator to quantify the sedimentation status of a slurry. Carbon slurries with the concentration of 5 wt%, 10 wt%, and 15 wt% are used to conduct this experimental study. Acid-washed and steam-activated Norit particles from peat with an average size of ∼15–35 μm are mixed with distilled water to make slurry samples. In situ measurements of slurry conductivity and sedimentation are performed at both static and flowing conditions. Maximum of ∼10 % and ∼3 % increases in conductivity are found for static and flowing slurry, respectively, after over 30 min of settlement period as the results of particle sedimentation. Surface area exposure of current collectors to slurry particles is also varied to observe the relative contribution of charge transfer by supernatant and sediment layer. It is found that slurry stability diminishes with sediment formation, and static slurry is more susceptible to forming sediment. |
| first_indexed | 2024-04-10T09:25:46Z |
| format | Article |
| id | doaj.art-b0b51edd0b544737b13fff0d1a9f4a9c |
| institution | Directory Open Access Journal |
| issn | 2589-2991 |
| language | English |
| last_indexed | 2024-04-10T09:25:46Z |
| publishDate | 2023-01-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Materials Science for Energy Technologies |
| spelling | doaj.art-b0b51edd0b544737b13fff0d1a9f4a9c2023-02-20T04:09:20ZengKeAi Communications Co., Ltd.Materials Science for Energy Technologies2589-29912023-01-016290300Using electrical conductivity to determine particle sedimentation status of carbon-based slurry electrodes in electrochemical energy storage systemsMonjur Mourshed0Huy Quoc Nguyen1Bahman Shabani2Mechanical and Automotive Engineering, School of Engineering, RMIT University, Bundoora 3083, Australia; Department of Mechanical Engineering, Rajshahi University of Engineering and Technology (RUET), Rajshahi 6204, BangladeshFaculty of Heat and Refrigeration Engineering, The University of Danang—University of Science and Technology, Danang 550000, VietnamMechanical and Automotive Engineering, School of Engineering, RMIT University, Bundoora 3083, Australia; Corresponding author.This paper presents an experimental work conducted to understand how the dispersion stability and sedimentation state of a carbon-based slurry affect its electronic conductivity when particularly used in electrochemical energy storage applications. This work supports the possible concept of using electronic conductivity as an indicator to quantify the sedimentation status of a slurry. Carbon slurries with the concentration of 5 wt%, 10 wt%, and 15 wt% are used to conduct this experimental study. Acid-washed and steam-activated Norit particles from peat with an average size of ∼15–35 μm are mixed with distilled water to make slurry samples. In situ measurements of slurry conductivity and sedimentation are performed at both static and flowing conditions. Maximum of ∼10 % and ∼3 % increases in conductivity are found for static and flowing slurry, respectively, after over 30 min of settlement period as the results of particle sedimentation. Surface area exposure of current collectors to slurry particles is also varied to observe the relative contribution of charge transfer by supernatant and sediment layer. It is found that slurry stability diminishes with sediment formation, and static slurry is more susceptible to forming sediment.http://www.sciencedirect.com/science/article/pii/S2589299123000071Slurry electrodeElectronic conductivitySedimentation |
| spellingShingle | Monjur Mourshed Huy Quoc Nguyen Bahman Shabani Using electrical conductivity to determine particle sedimentation status of carbon-based slurry electrodes in electrochemical energy storage systems Materials Science for Energy Technologies Slurry electrode Electronic conductivity Sedimentation |
| title | Using electrical conductivity to determine particle sedimentation status of carbon-based slurry electrodes in electrochemical energy storage systems |
| title_full | Using electrical conductivity to determine particle sedimentation status of carbon-based slurry electrodes in electrochemical energy storage systems |
| title_fullStr | Using electrical conductivity to determine particle sedimentation status of carbon-based slurry electrodes in electrochemical energy storage systems |
| title_full_unstemmed | Using electrical conductivity to determine particle sedimentation status of carbon-based slurry electrodes in electrochemical energy storage systems |
| title_short | Using electrical conductivity to determine particle sedimentation status of carbon-based slurry electrodes in electrochemical energy storage systems |
| title_sort | using electrical conductivity to determine particle sedimentation status of carbon based slurry electrodes in electrochemical energy storage systems |
| topic | Slurry electrode Electronic conductivity Sedimentation |
| url | http://www.sciencedirect.com/science/article/pii/S2589299123000071 |
| work_keys_str_mv | AT monjurmourshed usingelectricalconductivitytodetermineparticlesedimentationstatusofcarbonbasedslurryelectrodesinelectrochemicalenergystoragesystems AT huyquocnguyen usingelectricalconductivitytodetermineparticlesedimentationstatusofcarbonbasedslurryelectrodesinelectrochemicalenergystoragesystems AT bahmanshabani usingelectricalconductivitytodetermineparticlesedimentationstatusofcarbonbasedslurryelectrodesinelectrochemicalenergystoragesystems |