Journal article
Multilayered Solid Polymer Electrolytes with Sacrificial Coating for Suppressing Lithium Dendrite Growth
ACS applied materials & interfaces, v 14(1), pp 484-491
12 Jan 2022
PMID: 34962380
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
The practical application of lithium-metal batteries (LMBs) is hindered by the lithium dendrite formation during cycling. In this work, we report a multilayered solid polymer electrolyte (SPE) formed by sandwiching a comb-chain cross-linker-based network SPE (ConSPE) film with a linear poly(ethylene oxide) (PEO) SPE coating. Benefiting from the drastically different lithium dendrite resisting properties of the ConSPE and linear PEO SPE, the lithium dendrite growth in the multilayered SPEs could be tuned, with the linear PEO SPE effectively serving as a sacrificial layer to accommodate the lithium dendrite growth. Symmetrical lithium cells with the multilayered SPE exhibited an extended short-circuit time ∼4.1 times that for the single-layer ConSPE at a high current density of 1.5 mA cm–2. Li/LiFePO4 batteries with multilayered SPEs delivered superior cycling performance at extremely high C-rates of 2C and 10C. Our multilayered SPE architecture, therefore, opens up a new gateway for advancing SPE design for future LMBs.
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Details
- Title
- Multilayered Solid Polymer Electrolytes with Sacrificial Coating for Suppressing Lithium Dendrite Growth
- Creators
- Xiaowei Li - Jiangsu UniversityYongwei Zheng - Drexel UniversityWilliam R Fullerton - Drexel UniversityChristopher Y Li - Drexel University
- Publication Details
- ACS applied materials & interfaces, v 14(1), pp 484-491
- Publisher
- American Chemical Society; Washington, DC
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000737932600001
- Scopus ID
- 2-s2.0-85122585118
- Other Identifier
- 991019167655104721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Materials Science, Multidisciplinary
- Nanoscience & Nanotechnology