Radical Polymer‐based Positive Electrodes for Dual‐Ion Batteries: Enhancing Performance with γ‐Butyrolactone‐based Electrolytes
Fuente:
Wiley Open Access
Enregistré dans:
| Auteurs principaux: | , , , , , , , , |
|---|---|
| Format: | Artículo Open Access |
| Publié: |
Wiley
2024
|
| Sujets: | |
| Accès en ligne: | |
| Tags: |
Ajouter un tag
Pas de tags, Soyez le premier à ajouter un tag!
|
| _version_ | 1867007131726643200 |
|---|---|
| author | Katharina Rudolf Linus Voigt Simon Muench Lars Frankenstein Justin Landsmann Ulrich S. Schubert Martin Winter Tobias Placke Johannes Kasnatscheew |
| author_facet | Katharina Rudolf Linus Voigt Simon Muench Lars Frankenstein Justin Landsmann Ulrich S. Schubert Martin Winter Tobias Placke Johannes Kasnatscheew Katharina Rudolf Linus Voigt Simon Muench Lars Frankenstein Justin Landsmann Ulrich S. Schubert Martin Winter Tobias Placke Johannes Kasnatscheew |
| collection | Wiley Open Access |
| contents | Radical Polymer‐based Positive Electrodes for Dual‐Ion Batteries: Enhancing Performance with γ‐Butyrolactone‐based Electrolytes Katharina Rudolf Linus Voigt Simon Muench Lars Frankenstein Justin Landsmann Ulrich S. Schubert Martin Winter Tobias Placke Johannes Kasnatscheew ChemSusChem AbstractDual‐ion batteries (DIBs) represent a promising alternative for lithium ion batteries (LIBs) for various niche applications. DIBs with polymer‐based active materials, here poly(2,2,6,6‐tetramethylpiperidinyl‐N‐oxyl methacrylate) (PTMA), are of particular interest for high power applications, though they require appropriate electrolyte formulations. As the anion mobility plays a crucial role in transport kinetics, Li salts are varied using the well‐dissociating solvent γ‐butyrolactone (GBL). Lithium difluoro(oxalate)borate (LiDFOB) and lithium bis(oxalate)borate (LiBOB) improve cycle life in PTMA||Li metal cells compared to other Li salts and a LiPF6‐ and carbonate‐based reference electrolyte, even at specific currents of 1.0 A g−1 (≈10C), whereas LiDFOB reveals a superior rate performance, i. e., ≈90 % capacity even at 5.0 A g−1 (≈50C). This is attributed to faster charge‐transfer/mass transport, enhanced pseudo‐capacitive contributions during the de‐/insertion of the anions into the PTMA electrode and to lower overpotentials at the Li metal electrode. 10.1002/cssc.202400626 http://creativecommons.org/licenses/by/4.0/ |
| doi_str_mv | 10.1002/cssc.202400626 |
| format | Artículo Open Access |
| id | wiley_oa_10_1002_cssc_202400626 |
| institution | Wiley Open Access |
| license_str_mv | http://creativecommons.org/licenses/by/4.0/ |
| publishDate | 2024 |
| publisher | Wiley |
| record_format | wiley_oa |
| spellingShingle | Radical Polymer‐based Positive Electrodes for Dual‐Ion Batteries: Enhancing Performance with γ‐Butyrolactone‐based Electrolytes Katharina Rudolf Linus Voigt Simon Muench Lars Frankenstein Justin Landsmann Ulrich S. Schubert Martin Winter Tobias Placke Johannes Kasnatscheew ChemSusChem Radical Polymer‐based Positive Electrodes for Dual‐Ion Batteries: Enhancing Performance with γ‐Butyrolactone‐based Electrolytes Katharina Rudolf Linus Voigt Simon Muench Lars Frankenstein Justin Landsmann Ulrich S. Schubert Martin Winter Tobias Placke Johannes Kasnatscheew ChemSusChem AbstractDual‐ion batteries (DIBs) represent a promising alternative for lithium ion batteries (LIBs) for various niche applications. DIBs with polymer‐based active materials, here poly(2,2,6,6‐tetramethylpiperidinyl‐N‐oxyl methacrylate) (PTMA), are of particular interest for high power applications, though they require appropriate electrolyte formulations. As the anion mobility plays a crucial role in transport kinetics, Li salts are varied using the well‐dissociating solvent γ‐butyrolactone (GBL). Lithium difluoro(oxalate)borate (LiDFOB) and lithium bis(oxalate)borate (LiBOB) improve cycle life in PTMA||Li metal cells compared to other Li salts and a LiPF6‐ and carbonate‐based reference electrolyte, even at specific currents of 1.0 A g−1 (≈10C), whereas LiDFOB reveals a superior rate performance, i. e., ≈90 % capacity even at 5.0 A g−1 (≈50C). This is attributed to faster charge‐transfer/mass transport, enhanced pseudo‐capacitive contributions during the de‐/insertion of the anions into the PTMA electrode and to lower overpotentials at the Li metal electrode. 10.1002/cssc.202400626 http://creativecommons.org/licenses/by/4.0/ |
| title | Radical Polymer‐based Positive Electrodes for Dual‐Ion Batteries: Enhancing Performance with γ‐Butyrolactone‐based Electrolytes |
| topic | ChemSusChem |
| url | https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/cssc.202400626 |