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Enhanced ionic cond...
Enhanced ionic conductivity and interface stability of hybrid solid-state polymer electrolyte for rechargeable lithium metal batteries
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- Liu, Qiao (author)
- Xi'an Jiaotong University
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- Liu, Yangyang (author)
- Xi'an Jiaotong University
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- Jiao, Xingxing (author)
- Xi'an Jiaotong University
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- Song, Zhongxiao (author)
- Xi'an Jiaotong University
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- Sadd, Matthew, 1994 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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Xu, Xiaoxiong (author)
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- Matic, Aleksandar, 1968 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Xiong, Shizhao, 1985 (author)
- Xi'an Jiaotong University,Chalmers tekniska högskola,Chalmers University of Technology
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- Song, Jiangxuan (author)
- Xi'an Jiaotong University
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(creator_code:org_t)
- Elsevier BV, 2019
- 2019
- English.
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In: Energy Storage Materials. - : Elsevier BV. - 2405-8297. ; 23, s. 105-111
- Related links:
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https://doi.org/10.1...
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Abstract
Subject headings
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- Compared to conventional organic liquid electrolyte, solid-state polymer electrolytes are extensively considered as an alternative candidate for next generation high-energy batteries because of their high safety, non-leakage and electrochemical stability with the metallic lithium (Li) anode. However, solid-state polymer electrolytes generally show low ionic conductivity and high interfacial impedance to electrodes. Here we report a hybrid solid-state electrolyte, presenting an ultra-high ionic conductivity of 3.27 mS cm −1 at room temperature, a wide electrochemical stability window of 4.9 V, and non-flammability. This electrolyte consists of a polymer blend matrix (polyethylene oxide and poly (vinylidene fluoride-co-hexafluoropropylene)), Li + conductive ceramic filler (Li 1.5 Al 0.5 Ge 1.5 (PO 4 ) 3 ) and a solvate ionic liquid (LiFSI in tetra ethylene glycol dimethyl ether, 1:1 in molar ratio) as plasticizer. The introduction of the solvate ionic liquid to the solid-state electrolyte not only improves its ionic conductivity but also remarkably enhances the stability of the interface with Li anode. When applied in Li metal batteries, a Li|Li symmetric cell can operate stably over 800 h with a minimal polarization of 25 mV and a full Li|LiFePO 4 cell delivers a high specific capacity of 158 mAh g −1 after 100 cycles at room temperature.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Keramteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Ceramics (hsv//eng)
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik -- Annan kemiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering -- Other Chemical Engineering (hsv//eng)
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
Keyword
- LAGP
- Interface
- Lithium metal anode
- Solid polymer electrolyte
- High safety
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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Liu, Qiao
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Liu, Yangyang
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Jiao, Xingxing
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Song, Zhongxiao
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Sadd, Matthew, 1 ...
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Xu, Xiaoxiong
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Matic, Aleksanda ...
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Xiong, Shizhao, ...
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Song, Jiangxuan
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- About the subject
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Materials Engine ...
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and Ceramics
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Materials Chemis ...
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Chemical Enginee ...
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and Other Chemical E ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Other Physics To ...
- Articles in the publication
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Energy Storage M ...
- By the university
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Chalmers University of Technology