Dual-Cation Electrolytes for High-Power and High-Energy LTO//AC Hybrid Capacitors
Dual-cation electrolyte systems, which contain two cations [Li+ and spiro-1,1′-bipyrrolidinium (SBP+), are proposed to enhance the power capability of hybrid capacitors composed of thick Li4Ti5O12 (LTO) negative (200 μm) and activated carbon (AC) positive electrodes (400 μm), which thus reduces the...
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| Veröffentlicht in: | Journal of physical chemistry. C 2020-06, Vol.124 (23), p.12230-12238 |
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| container_title | Journal of physical chemistry. C |
| container_volume | 124 |
| creator | Chikaoka, Yu Iwama, Etsuro Ueda, Tsukasa Miyashita, Natsuki Seto, Shinichi Sakurai, Masato Naoi, Wako Reid, McMahon Thomas Homer Simon, Patrice Naoi, Katsuhiko |
| description | Dual-cation electrolyte systems, which contain two cations [Li+ and spiro-1,1′-bipyrrolidinium (SBP+), are proposed to enhance the power capability of hybrid capacitors composed of thick Li4Ti5O12 (LTO) negative (200 μm) and activated carbon (AC) positive electrodes (400 μm), which thus reduces the resistive overvoltage in the system. Detailed studies of the mass transport properties based on the combination of spectroscopy and electrochemical analysis have shown that the presence of SBP+, despite slower Li+ transport in the electrolyte bulk, further reduces overvoltage associated with migration limitation in the thick LTO electrode macropores. This study on the dual-cation electrolyte quantifies the influence of the addition of a supporting electrolyte and shows interest in SBPBF4 addition for increasing the output power density of hybrid capacitors with a thick electrode configuration. |
| doi_str_mv | 10.1021/acs.jpcc.0c01916 |
| format | Article |
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Detailed studies of the mass transport properties based on the combination of spectroscopy and electrochemical analysis have shown that the presence of SBP+, despite slower Li+ transport in the electrolyte bulk, further reduces overvoltage associated with migration limitation in the thick LTO electrode macropores. This study on the dual-cation electrolyte quantifies the influence of the addition of a supporting electrolyte and shows interest in SBPBF4 addition for increasing the output power density of hybrid capacitors with a thick electrode configuration.</description><identifier>ISSN: 1932-7447</identifier><identifier>EISSN: 1932-7455</identifier><identifier>DOI: 10.1021/acs.jpcc.0c01916</identifier><language>eng</language><publisher>American Chemical Society</publisher><subject>C: Energy Conversion and Storage; Energy and Charge Transport ; Chemical Sciences ; Material chemistry</subject><ispartof>Journal of physical chemistry. 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This study on the dual-cation electrolyte quantifies the influence of the addition of a supporting electrolyte and shows interest in SBPBF4 addition for increasing the output power density of hybrid capacitors with a thick electrode configuration.</description><subject>C: Energy Conversion and Storage; Energy and Charge Transport</subject><subject>Chemical Sciences</subject><subject>Material chemistry</subject><issn>1932-7447</issn><issn>1932-7455</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNp1kN9LwzAQx4MoOKfvPvZVsFsuaZL1cdRphcIU5nO4ZenWUZuRVKX_vZ0dexMO7tf3e3AfQu6BToAymKIJk_3BmAk1FFKQF2QEKWexSoS4PNeJuiY3IewpFZwCH5H3py-s4wzbyjXRoram9a7uWhui0vkor7a7-M39WB9hsxnaRWP9touK1XI6nWdR3q19tYkyPKCpWufDLbkqsQ727pTH5ON5scryuFi-vGbzIsaEsTaWXPVhGS_lmnNpLSuVUBLQoEQhJZR8lqbARcqNTIwyuLYoTKIQKGezhI_Jw3B3h7U--OoTfacdVjqfF_o4o5wKpiD9hl5LB63xLgRvy7MBqD7i0z0-fcSnT_h6y-Ng-du4L9_0z_wv_wWSQXEB</recordid><startdate>20200611</startdate><enddate>20200611</enddate><creator>Chikaoka, Yu</creator><creator>Iwama, Etsuro</creator><creator>Ueda, Tsukasa</creator><creator>Miyashita, Natsuki</creator><creator>Seto, Shinichi</creator><creator>Sakurai, Masato</creator><creator>Naoi, Wako</creator><creator>Reid, McMahon Thomas Homer</creator><creator>Simon, Patrice</creator><creator>Naoi, Katsuhiko</creator><general>American Chemical Society</general><scope>AAYXX</scope><scope>CITATION</scope><scope>1XC</scope><scope>VOOES</scope><orcidid>https://orcid.org/0000-0002-0461-8268</orcidid><orcidid>https://orcid.org/0000-0002-0265-2235</orcidid><orcidid>https://orcid.org/0000-0001-6496-4050</orcidid></search><sort><creationdate>20200611</creationdate><title>Dual-Cation Electrolytes for High-Power and High-Energy LTO//AC Hybrid Capacitors</title><author>Chikaoka, Yu ; Iwama, Etsuro ; Ueda, Tsukasa ; Miyashita, Natsuki ; Seto, Shinichi ; Sakurai, Masato ; Naoi, Wako ; Reid, McMahon Thomas Homer ; Simon, Patrice ; Naoi, Katsuhiko</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a422t-637637e23f6b336ee2f75761aca6a5661f389913593c64c7cabea5c47a1032843</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>C: Energy Conversion and Storage; Energy and Charge Transport</topic><topic>Chemical Sciences</topic><topic>Material chemistry</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Chikaoka, Yu</creatorcontrib><creatorcontrib>Iwama, Etsuro</creatorcontrib><creatorcontrib>Ueda, Tsukasa</creatorcontrib><creatorcontrib>Miyashita, Natsuki</creatorcontrib><creatorcontrib>Seto, Shinichi</creatorcontrib><creatorcontrib>Sakurai, Masato</creatorcontrib><creatorcontrib>Naoi, Wako</creatorcontrib><creatorcontrib>Reid, McMahon Thomas Homer</creatorcontrib><creatorcontrib>Simon, Patrice</creatorcontrib><creatorcontrib>Naoi, Katsuhiko</creatorcontrib><collection>CrossRef</collection><collection>Hyper Article en Ligne (HAL)</collection><collection>Hyper Article en Ligne (HAL) (Open Access)</collection><jtitle>Journal of physical chemistry. 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| subjects | C: Energy Conversion and Storage Energy and Charge Transport Chemical Sciences Material chemistry |
| title | Dual-Cation Electrolytes for High-Power and High-Energy LTO//AC Hybrid Capacitors |
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