- AutorIn
- Gang Wang Center for Advancing Electronics Dresden (cfaed), Technische Universität Dresden#Department of Chemistry and Food Chemistry, Technische Universität Dresden
- Faxing WangCenter for Advancing Electronics Dresden (cfaed), Technische Universität Dresden#Department of Chemistry and Food Chemistry, Technische Universität Dresden
- Panpan ZhangCenter for Advancing Electronics Dresden (cfaed), Technische Universität Dresden#Department of Chemistry and Food Chemistry, Technische Universität Dresden
- Jian Zhang
- Tao Zhang
- Klaus Müllen
- Prof. Xinliang Feng
- Titel
- Polarity‐Switchable Symmetric Graphite Batteries with High Energy and High Power Densities
- Zitierfähige Url:
- https://nbn-resolving.org/urn:nbn:de:bsz:14-qucosa2-345643
- Quellenangabe
- Advanced Materials
Erscheinungsjahr: 2018
Jahrgang: 30
Heft: 39
ISSN: 1521-4095 - Erstveröffentlichung
- 2018
- Abstract (EN)
- Multifunctional batteries with enhanced safety performance have received considerable attention for their applications at extreme conditions. However, few batteries can endure a mix‐up of battery polarity during charging, a common wrong operation of rechargeable batteries. Herein, a polarity‐switchable battery based on the switchable intercalation feature of graphite is demonstrated. The unique redox‐amphoteric intercalation behavior of graphite allows a reversible switching of graphite between anode and cathode, thus enabling polarity‐switchable symmetric graphite batteries. The large potential gap between anion and cation intercalation delivers a high midpoint device voltage (≈average voltage) of ≈4.5 V. Further, both the graphite anode and cathode are kinetically activated during the polarity switching. Consequently, polarity‐switchable symmetric graphite batteries exhibit a remarkable cycling stability (96% capacity retention after 500 cycles), a high power density of 8.66 kW kg−1, and a high energy density of 227 Wh kg−1 (calculated based on the total weight of active materials in both anode and cathode), which are superior to other symmetric batteries and recently reported dual‐graphite or dual‐carbon batteries. This work will inspire the development of new multifunctional energy‐storage devices based on novel materials and electrolyte systems.
- Andere Ausgabe
- Link zum Artikel, der zuerst in der Zeitschrift 'Advanced Materials' in der Wiley Online Library erschienen ist.
DOI: 10.1002/adma.201802949 - Freie Schlagwörter (DE)
- Dual-Graphit-Batterien, Dual-Ionen-Batterien, Multifunktionsbatterien, Polaritätsumschaltbarkeit
- Freie Schlagwörter (EN)
- dual‐graphite batteries, dual‐ion batteries, multifunctional batteries, polarity switchability
- Klassifikation (DDC)
- 540
- 660
- Klassifikation (RVK)
- VA 1120
- Verlag
- WILEY‐VCH, Weinheim
- Förder- / Projektangaben
- European Commission (EC)
H2020 | ERC | ERC-POC
Scalable and efficient production of functionalized, high-performance solution-processable graphene-materials (Hiper-G)
ID: 768930 - European Commission (EC)
Horizon2020
Graphene-Based Revolutions in ICT And Beyond (GRAPHENE)
ID:  604391 - Version / Begutachtungsstatus
- angenommene Version / Postprint / Autorenversion
- URN Qucosa
- urn:nbn:de:bsz:14-qucosa2-345643
- Veröffentlichungsdatum Qucosa
- 17.07.2019
- Dokumenttyp
- Artikel
- Sprache des Dokumentes
- Englisch
- Lizenz / Rechtehinweis