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Journal article
2D MXene-containing polymer electrolytes for all-solid-state lithium metal batteries
Nanoscale advances, v 1(1), pp 395-402
01 Jan 2019
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Nanocomposite polymer electrolytes (CPEs) are promising materials for all-solid-state lithium metal batteries (LMBs) due to their enhanced ionic conductivities and stability to the lithium anode. MXenes are a new two-dimensional, 2D, family of early transition metal carbides and nitrides, which have a high aspect ratio and a hydrophilic surface. Herein, using a green, facile aqueous solution blending method, we uniformly dispersed small amounts of Ti3C2Tx into a poly(ethylene oxide)/LiTFSI complex (PEO20-LiTFSI) to fabricate MXene-based CPEs (MCPE5). The addition of the 2D flakes to PEO simultaneously retards PEO crystallization and enhances its segmental motion. Compared to the 0D and 1D nanofillers, MXenes show higher efficiency in ionic conductivity enhancement and improvement in the performance of LMBs. The CPE with 3.6 wt% MXene shows the highest ionic conductivity at room temperature (2.2 x 10(-5) S m(-1) at 28 degrees C). An LMB using MCPE with only 1.5 wt% MXene shows rate capability and stability comparable with that of the state-of-the-art CPELMBs. We attribute the excellent performance to the 2D geometry of the filler, the good dispersion of the flakes in the polymer matrix, and the functional group-rich surface.
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Details
- Title
- 2D MXene-containing polymer electrolytes for all-solid-state lithium metal batteries
- Creators
- Qiwei Pan - South China University of TechnologyYongwei Zheng - Drexel UniversitySankalp Kota - Drexel UniversityWeichun Huang - Soochow UniversityShijun Wang - Drexel UniversityHao Qi - Drexel UniversitySeyong Kim - Drexel UniversityYingfeng Tu - Soochow UniversityMichel W. Barsoum - Drexel UniversityChristopher Y. Li - Drexel University
- Publication Details
- Nanoscale advances, v 1(1), pp 395-402
- Publisher
- Royal Soc Chemistry
- Number of pages
- 8
- Grant note
- 54945-ND7 / ACS-PRF; American Chemical Society CBET-1510092; CBET-1603520; DMR-1740795 / National Science Foundation; National Science Foundation (NSF)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000479164600044
- Scopus ID
- 2-s2.0-85060503747
- Other Identifier
- 991019167779504721
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InCites Highlights
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Chemistry, Multidisciplinary
- Materials Science, Multidisciplinary
- Nanoscience & Nanotechnology