Journal article
High mass loading, binder-free MXene anodes for high areal capacity Li-ion batteries
Electrochimica acta, v 163(C), pp 246-251
01 May 2015
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Though anodes with high Li gravimetric capacities, beyond commercial graphite, have been intensively studied, gravimetric capacity does not precisely reflect the performance of a packed cell. Li anodes with high mass loadings, which can achieve high areal capacities, are required for many commercial applications. Herein, anodes with high mass loadings were fabricated using two-dimensional transition metal carbides (MXenes). Powders of the latter were cold pressed, without binders, at a pressure of 1GPa, to create ∼300μm thick, free-standing discs. When Ti3C2 was used as the anode for lithium, the initial reversible areal capacity was ∼15mAh/cm2, which decreased to 5.9mAh/cm2 after 50 cycles, but the decrease after the first ∼20 cycles was very gradual. The latter is one of the highest values ever reported to date. When Nb2C was used as the anode instead, the initial reversible capacity was ∼16mAh/cm2; this value decreased to 6.7mAh/cm2 after 50 cycles, which is about a 14% increase compared to Ti3C2. As the research on MXenes for lithium ion batteries has just begun, there is certainly room for further improving their electrochemical performance.
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Details
- Title
- High mass loading, binder-free MXene anodes for high areal capacity Li-ion batteries
- Creators
- Seon Joon Kim - A. J. Drexel Nanomaterials Institute and Department of Materials Science and Engineering, Drexel University, Philadelphia, PA 19104, USAMichael Naguib - A. J. Drexel Nanomaterials Institute and Department of Materials Science and Engineering, Drexel University, Philadelphia, PA 19104, USAMengqiang Zhao - A. J. Drexel Nanomaterials Institute and Department of Materials Science and Engineering, Drexel University, Philadelphia, PA 19104, USAChuanfang Zhang - A. J. Drexel Nanomaterials Institute and Department of Materials Science and Engineering, Drexel University, Philadelphia, PA 19104, USAHee-Tae Jung - Department of Chemical and Biomolecular Engineering (BK-21 Plus), Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of KoreaMichel W Barsoum - A. J. Drexel Nanomaterials Institute and Department of Materials Science and Engineering, Drexel University, Philadelphia, PA 19104, USAYury Gogotsi - A. J. Drexel Nanomaterials Institute and Department of Materials Science and Engineering, Drexel University, Philadelphia, PA 19104, USA
- Publication Details
- Electrochimica acta, v 163(C), pp 246-251
- Publisher
- Elsevier
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000352496700032
- Scopus ID
- 2-s2.0-84923675546
- Other Identifier
- 991014969769104721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Electrochemistry