Journal article
Lithium-ion capacitors with 2D Nb2CTx (MXene) – carbon nanotube electrodes
Journal of power sources, v 326, pp 686-694
15 Sep 2016
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
There is a growing interest to hybrid energy storage devices, such as lithium-ion capacitors, in which battery-type electrodes are combined with capacitor-type ones. It is anticipated that the energy density (either gravimetric or volumetric) of lithium-ion capacitors is improved if pseudocapacitive or fast insertion materials are used instead of conventional activated carbon (AC) in the capacitor-type electrode. MXenes, a new family of two-dimensional transition metal carbides, demonstrate metallic conductivity and fast charge-discharge behavior that make them suitable for this application. In this study, we move beyond single electrodes, half-cell studies and demonstrate three types of hybrid cells using Nb2CTx–carbon nanotube (CNT) films. It is shown that lithiated graphite/Nb2CTx-CNT, Nb2CTx-CNT/LiFePO4 and lithiated Nb2CTx-CNT/Nb2CTx-CNT cells are all able to operate within 3 V voltage windows and deliver capacities of 43, 24 and 36 mAh/g (per total weight of two electrodes), respectively. Moreover, the polarity of the electrodes can be reversed in the symmetric Nb2CTx-CNT cells from providing a positive potential between 0 and 3 V to a negative one from −3 to 0 V. It is shown that the volumetric energy density (50–70 Wh/L) of our first-generation devices with MXene electrodes exceeds that of a lithium titanate/AC capacitor.
[Display omitted]
•3 types of lithium-ion capacitors using Nb2CTx-CNT as one electrode were tested.•The highest volumetric energy density of 50–70 Wh/L was achieved.•Energy density of symmetric cell exceeds that of lithium titanate/activated carbon.•The lithiated graphite/Nb2CTx-CNT shows the highest gravimetric performance.
Metrics
Details
- Title
- Lithium-ion capacitors with 2D Nb2CTx (MXene) – carbon nanotube electrodes
- Creators
- Ayeong Byeon - A. J. Drexel Nanomaterials Institute and Department of Materials Science and Engineering, Drexel University, Philadelphia, PA, 19104, United StatesAlexey M Glushenkov - Institute for Frontier Materials, Deakin University, 75 Pigdons Road, Waurn Ponds, Geelong, Victoria, 3216, AustraliaBabak Anasori - A. J. Drexel Nanomaterials Institute and Department of Materials Science and Engineering, Drexel University, Philadelphia, PA, 19104, United StatesPatrick Urbankowski - A. J. Drexel Nanomaterials Institute and Department of Materials Science and Engineering, Drexel University, Philadelphia, PA, 19104, United StatesJingwen Li - A. J. Drexel Nanomaterials Institute and Department of Materials Science and Engineering, Drexel University, Philadelphia, PA, 19104, United StatesBryan W Byles - Department of Materials Science and Engineering, Drexel University, Philadelphia, PA, 19104, United StatesBrian Blake - Department of Chemical Engineering, Drexel University, Philadelphia, PA, 19104, United StatesKatherine L Van Aken - A. J. Drexel Nanomaterials Institute and Department of Materials Science and Engineering, Drexel University, Philadelphia, PA, 19104, United StatesSankalp Kota - Department of Materials Science and Engineering, Drexel University, Philadelphia, PA, 19104, United StatesEkaterina Pomerantseva - Department of Materials Science and Engineering, Drexel University, Philadelphia, PA, 19104, United StatesJae W Lee - Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 305-701, Republic of KoreaYing Chen - Institute for Frontier Materials, Deakin University, 75 Pigdons Road, Waurn Ponds, Geelong, Victoria, 3216, AustraliaYury Gogotsi - A. J. Drexel Nanomaterials Institute and Department of Materials Science and Engineering, Drexel University, Philadelphia, PA, 19104, United States
- Publication Details
- Journal of power sources, v 326, pp 686-694
- Publisher
- Elsevier
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000382338800082
- Scopus ID
- 2-s2.0-84964374869
- Other Identifier
- 991014969868404721
UN Sustainable Development Goals (SDGs)
This publication has contributed to the advancement of the following goals:
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Chemistry, Physical
- Electrochemistry
- Energy & Fuels
- Materials Science, Multidisciplinary