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Multifunctional electrospun PVDF-HFP gel polymer electrolyte membrane suppresses dendrite growth in anode-free li metal battery by Yosef Nikodimos; Wei-Nien Su; Kassie Nigus Shitaw; Shi-Kai Jiang; Ljalem Hadush Abrha; Misganaw Adigo Weret; Semaw Kebede Merso; Teklay Mezgebe Hagos; Chen-Jui Huang; Keseven Lakshmanan; Wei-Hsiang Huang; Chia-Yu Chang; Jhih-Min Lin; She-Huang Wu; Chun-Chen Yang; Bing Joe Hwang is a Engineering article available to read on EtoBox.
What is Multifunctional electrospun PVDF-HFP gel polymer electrolyte membrane suppresses dendrite growth in anode-free li metal battery about?
It is widely accepted that high electrolyte consumption due to decomposition leads to rapid capacity fading in anode-free Li metal batteries (AFLMBs). Here, we report an electrospun gel polymer electrolyte (GPE) membrane, unpeeled-off and integrated with its Cu foil collector (Cu@GPE), prepared using a novel method. The Cu@GPE provides bifunctional applications; as electrolytes and an artificial solid-electrolyte interphase (ASEI). Interestingly, the strong electrostatic interaction between the fiber sheet and the Cu foil collector reconstructs the Cu surface structure, confirmed by grazing angle X-ray diffraction, which positively influences the fluidity of deposited Li. X-ray absorption, depth profile of X-ray photoelectron, Raman and infrared spectroscopies analyses showed the formation of pure β-phase PVDF-HFP as ASEI in which the F elements are aligned toward the Cu surface. These lead to a uniform Li-ion flux and regulate the Li nucleation due to the strong binding between Li and electronegative C-F functional groups promoting uniform Li deposition. The Cu@GPE|Li cell achieved outstanding performance even at a high current density of up to 5 mA cm -2 (coulombic efficiency, 97
Who reads Multifunctional electrospun PVDF-HFP gel polymer electrolyte membrane suppresses dendrite growth in anode-free li metal battery?
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- Author
- Yosef Nikodimos; Wei-Nien Su; Kassie Nigus Shitaw; Shi-Kai Jiang; Ljalem Hadush Abrha; Misganaw Adigo Weret; Semaw Kebede Merso; Teklay Mezgebe Hagos; Chen-Jui Huang; Keseven Lakshmanan; Wei-Hsiang Huang; Chia-Yu Chang; Jhih-Min Lin; She-Huang Wu; Chun-Chen Yang; Bing Joe Hwang
- Publisher
- Elsevier BV
- Published
- 2023
- Language
- EN
- Field
- Engineering (Physical Sciences)