Electrochemical Solvent Cointercalation into Graphite in Propylene Carbonate-Based Electrolytes: A Chronopotentiometric Characterization
Interfacial reactions strongly influence the performance of lithium-ion batteries, with the main interfacial reaction between graphite and propylene carbonate- (PC-) based electrolytes corresponding to solvent cointercalation. Herein, the redox reactions of solvated lithium ions occurring at the gra...
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | Journal of Analytical Methods in Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2018/9231857 |
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| author | Hee-Youb Song Soon-Ki Jeong |
| author_facet | Hee-Youb Song Soon-Ki Jeong |
| author_sort | Hee-Youb Song |
| collection | DOAJ |
| description | Interfacial reactions strongly influence the performance of lithium-ion batteries, with the main interfacial reaction between graphite and propylene carbonate- (PC-) based electrolytes corresponding to solvent cointercalation. Herein, the redox reactions of solvated lithium ions occurring at the graphite interface in 1 M·LiClO4/PC were probed by chronopotentiometry, in situ atomic force microscopy (AFM), and in situ Raman spectroscopy. The obtained results revealed that high coulombic efficiency (97.5%) can be achieved at high current density, additionally showing the strong influence of charge capacity on the above redox reactions. Moreover, AFM imaging indicated the occurrence of solvent cointercalation during the first reduction, as reflected by the presence of hills and blisters on the basal plane of highly oriented pyrolytic graphite subjected to the above process. |
| format | Article |
| id | doaj-art-8bbc19a7851b4b1199abf012bcfdb6ea |
| institution | Kabale University |
| issn | 2090-8865 2090-8873 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Analytical Methods in Chemistry |
| spelling | doaj-art-8bbc19a7851b4b1199abf012bcfdb6ea2025-02-03T01:23:57ZengWileyJournal of Analytical Methods in Chemistry2090-88652090-88732018-01-01201810.1155/2018/92318579231857Electrochemical Solvent Cointercalation into Graphite in Propylene Carbonate-Based Electrolytes: A Chronopotentiometric CharacterizationHee-Youb Song0Soon-Ki Jeong1Department of Chemical Engineering, Soonchunhyang University, Asan, Chungnam 336-745, Republic of KoreaDepartment of Chemical Engineering, Soonchunhyang University, Asan, Chungnam 336-745, Republic of KoreaInterfacial reactions strongly influence the performance of lithium-ion batteries, with the main interfacial reaction between graphite and propylene carbonate- (PC-) based electrolytes corresponding to solvent cointercalation. Herein, the redox reactions of solvated lithium ions occurring at the graphite interface in 1 M·LiClO4/PC were probed by chronopotentiometry, in situ atomic force microscopy (AFM), and in situ Raman spectroscopy. The obtained results revealed that high coulombic efficiency (97.5%) can be achieved at high current density, additionally showing the strong influence of charge capacity on the above redox reactions. Moreover, AFM imaging indicated the occurrence of solvent cointercalation during the first reduction, as reflected by the presence of hills and blisters on the basal plane of highly oriented pyrolytic graphite subjected to the above process.http://dx.doi.org/10.1155/2018/9231857 |
| spellingShingle | Hee-Youb Song Soon-Ki Jeong Electrochemical Solvent Cointercalation into Graphite in Propylene Carbonate-Based Electrolytes: A Chronopotentiometric Characterization Journal of Analytical Methods in Chemistry |
| title | Electrochemical Solvent Cointercalation into Graphite in Propylene Carbonate-Based Electrolytes: A Chronopotentiometric Characterization |
| title_full | Electrochemical Solvent Cointercalation into Graphite in Propylene Carbonate-Based Electrolytes: A Chronopotentiometric Characterization |
| title_fullStr | Electrochemical Solvent Cointercalation into Graphite in Propylene Carbonate-Based Electrolytes: A Chronopotentiometric Characterization |
| title_full_unstemmed | Electrochemical Solvent Cointercalation into Graphite in Propylene Carbonate-Based Electrolytes: A Chronopotentiometric Characterization |
| title_short | Electrochemical Solvent Cointercalation into Graphite in Propylene Carbonate-Based Electrolytes: A Chronopotentiometric Characterization |
| title_sort | electrochemical solvent cointercalation into graphite in propylene carbonate based electrolytes a chronopotentiometric characterization |
| url | http://dx.doi.org/10.1155/2018/9231857 |
| work_keys_str_mv | AT heeyoubsong electrochemicalsolventcointercalationintographiteinpropylenecarbonatebasedelectrolytesachronopotentiometriccharacterization AT soonkijeong electrochemicalsolventcointercalationintographiteinpropylenecarbonatebasedelectrolytesachronopotentiometriccharacterization |