Sacrificial Poly(propylene carbonate) Membrane for Dispersing Nanoparticles and Preparing Artificial Solid Electrolyte Interphase on Li Metal Anode
Autor: | Qi Liu, Baohua Li, Guiyin Xu, Qipeng Yu, Yuanming Liu, Ju Li, Weicong Mai, Weijiang Xue, Kun Zeng, Feiyu Kang |
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Rok vydání: | 2020 |
Předmět: |
0303 health sciences
Materials science Fabrication Silicon Nanoparticle chemistry.chemical_element 02 engineering and technology Electrolyte 021001 nanoscience & nanotechnology Anode 03 medical and health sciences chemistry.chemical_compound Membrane Chemical engineering chemistry Propylene carbonate General Materials Science Interphase 0210 nano-technology 030304 developmental biology |
Zdroj: | ACS Applied Materials & Interfaces. 12:27087-27094 |
ISSN: | 1944-8252 1944-8244 |
Popis: | Lithium-metal batteries have been regarded as next-generation high-energy-density candidates beyond lithium-ion batteries. However, the lithium-morphology instabilities accompanied by continuous side reactions with electrolytes inevitably leads to dissatisfactory performances and even safety issues, where the unstable interface between lithium-metal anode and electrolytes has been regarded as the root cause. Artificial solid electrolyte interphase engineering has attracted a lot of attention to stabilize lithium-metal anodes. Here, a novel method with universality is reported to produce the organic-inorganic artificial solid electrolyte interphase. Using poly(propylene carbonate) as a sacrificial matrix, nanoparticles are dispersed on lithium-metal anodes surface uniformly to prepare artificial solid electrolyte interphase, where poly(propylene carbonate) turns into liquid propylene carbonate upon contact with lithium-metal anode. Silicon, Li1.5Al0.5Ge1.5(PO4)3, or Li1.4Al0.4Ti1.6(PO4)3 nanoparticles are coated to suppress lithium-morphology instabilities and demonstrated ∼4 times longer cycle life. Preparing various organic/inorganic artificial solid electrolyte interphase is feasible by introducing various components in the fabrication process of poly(propylene carbonate) membrane, endowing this approach with huge potential in the research of artificial solid electrolyte interphase. |
Databáze: | OpenAIRE |
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