Study on electrochemical properties of Pb(BF4)2 electrolyte for improvement of cycle lifetime and efficiency in soluble lead flow batteries
The electrochemical characteristics of a soluble lead flow battery are key factors for the improvement of its cyclic lifetime and efficiency. In this work, we suggested aqueous solution of Pb(BF4)2 and HBF4 as the electrolytes of soluble lead flow battery and observed the kinetic behavior of the ele...
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| Format: | Article |
| Language: | English |
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Springer
2022-05-01
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| Series: | Journal of Saudi Chemical Society |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1319610322000540 |
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| author | You Gyong Ho Mun Gi Kim Gang Hyok Kim Song Chol Jong Jin Sim Kim |
| author_facet | You Gyong Ho Mun Gi Kim Gang Hyok Kim Song Chol Jong Jin Sim Kim |
| author_sort | You Gyong Ho |
| collection | DOAJ |
| description | The electrochemical characteristics of a soluble lead flow battery are key factors for the improvement of its cyclic lifetime and efficiency. In this work, we suggested aqueous solution of Pb(BF4)2 and HBF4 as the electrolytes of soluble lead flow battery and observed the kinetic behavior of the electrode by cyclic voltammetry of the cyclic lifetime, quantum efficiency and voltage efficiency of the SLFB with respect to concentration of the electrolyte. Both the density and viscosity of the electrolyte increase with an increasing [Pb(BF4)2]. The conductivity exhibits a peak at 1.5 mol/L Pb(BF4)2 when [HBF4] is below 1.0 mol/L. According to the cyclic voltammetry, the electrode process is fast with a low overvoltage and no additional reactions for the aqueous solution with 1.5 mol/L Pb(BF4)2 and 0.25 mol/L HBF4. Overall, for the aqueous solution of 1.5 mol/L Pb(BF4)2 and 0.25 mol/L HBF4, the battery showed a best performance with the cyclic lifetime being 48 times, the average quantum efficiency 88%, the voltage efficiency 70% and the battery efficiency 62%. These results are promising for fresh parameters of the electrolyte that could play a major role for the improvement of SLFBs. |
| format | Article |
| id | doaj-art-3cf3a8e223d840469a9414e1e714e7cf |
| institution | Kabale University |
| issn | 1319-6103 |
| language | English |
| publishDate | 2022-05-01 |
| publisher | Springer |
| record_format | Article |
| series | Journal of Saudi Chemical Society |
| spelling | doaj-art-3cf3a8e223d840469a9414e1e714e7cf2025-08-20T03:48:36ZengSpringerJournal of Saudi Chemical Society1319-61032022-05-0126310147210.1016/j.jscs.2022.101472Study on electrochemical properties of Pb(BF4)2 electrolyte for improvement of cycle lifetime and efficiency in soluble lead flow batteriesYou Gyong Ho0Mun Gi Kim1Gang Hyok Kim2Song Chol Jong3Jin Sim Kim4Institute of Nano Science and Physical Engineering, Kim Chaek University of Technology, Pyongyang, Democratic People’s Republic of Korea; Corresponding author.Faculty of Applied Chemical Engineering, Kim Chaek University of Technology, Pyongyang, Democratic People’s Republic of KoreaFaculty of Applied Chemical Engineering, Kim Chaek University of Technology, Pyongyang, Democratic People’s Republic of KoreaFaculty of Applied Chemical Engineering, Kim Chaek University of Technology, Pyongyang, Democratic People’s Republic of KoreaInternational Technology Cooperation Center, Pyongyang, Democratic People’s Republic of KoreaThe electrochemical characteristics of a soluble lead flow battery are key factors for the improvement of its cyclic lifetime and efficiency. In this work, we suggested aqueous solution of Pb(BF4)2 and HBF4 as the electrolytes of soluble lead flow battery and observed the kinetic behavior of the electrode by cyclic voltammetry of the cyclic lifetime, quantum efficiency and voltage efficiency of the SLFB with respect to concentration of the electrolyte. Both the density and viscosity of the electrolyte increase with an increasing [Pb(BF4)2]. The conductivity exhibits a peak at 1.5 mol/L Pb(BF4)2 when [HBF4] is below 1.0 mol/L. According to the cyclic voltammetry, the electrode process is fast with a low overvoltage and no additional reactions for the aqueous solution with 1.5 mol/L Pb(BF4)2 and 0.25 mol/L HBF4. Overall, for the aqueous solution of 1.5 mol/L Pb(BF4)2 and 0.25 mol/L HBF4, the battery showed a best performance with the cyclic lifetime being 48 times, the average quantum efficiency 88%, the voltage efficiency 70% and the battery efficiency 62%. These results are promising for fresh parameters of the electrolyte that could play a major role for the improvement of SLFBs.http://www.sciencedirect.com/science/article/pii/S1319610322000540Soluble lead flow batteriesPb(BF4)2HBF4Lead dioxideBattery efficiencyCycle lifetime |
| spellingShingle | You Gyong Ho Mun Gi Kim Gang Hyok Kim Song Chol Jong Jin Sim Kim Study on electrochemical properties of Pb(BF4)2 electrolyte for improvement of cycle lifetime and efficiency in soluble lead flow batteries Journal of Saudi Chemical Society Soluble lead flow batteries Pb(BF4)2 HBF4 Lead dioxide Battery efficiency Cycle lifetime |
| title | Study on electrochemical properties of Pb(BF4)2 electrolyte for improvement of cycle lifetime and efficiency in soluble lead flow batteries |
| title_full | Study on electrochemical properties of Pb(BF4)2 electrolyte for improvement of cycle lifetime and efficiency in soluble lead flow batteries |
| title_fullStr | Study on electrochemical properties of Pb(BF4)2 electrolyte for improvement of cycle lifetime and efficiency in soluble lead flow batteries |
| title_full_unstemmed | Study on electrochemical properties of Pb(BF4)2 electrolyte for improvement of cycle lifetime and efficiency in soluble lead flow batteries |
| title_short | Study on electrochemical properties of Pb(BF4)2 electrolyte for improvement of cycle lifetime and efficiency in soluble lead flow batteries |
| title_sort | study on electrochemical properties of pb bf4 2 electrolyte for improvement of cycle lifetime and efficiency in soluble lead flow batteries |
| topic | Soluble lead flow batteries Pb(BF4)2 HBF4 Lead dioxide Battery efficiency Cycle lifetime |
| url | http://www.sciencedirect.com/science/article/pii/S1319610322000540 |
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