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Interfacial Modific...
Interfacial Modification of Lithium Metal Anode by Boron Nitride Nanosheets
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- Wang, Zhiyu (author)
- Deakin University
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- Qin, Si (author)
- Deakin University
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- Chen, Fangfang (author)
- Deakin University
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- Chen, Shasha (author)
- Deakin University
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- Liu, Dan (author)
- Deakin University
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- Jiang, Degang (author)
- Deakin University
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- Zhang, Peng (author)
- Deakin University
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- Mota-Santiago, Pablo (author)
- Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory,Deakin University
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- Hegh, Dylan (author)
- Deakin University
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- Lynch, Peter (author)
- Deakin University
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- Alotabi, Abdulrahman S (author)
- Flinders University
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- Andersson, Gunther G (author)
- Flinders University
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- Howlett, Patrick C (author)
- Deakin University
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- Forsyth, Maria (author)
- Deakin University
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- Lei, Weiwei (author)
- Deakin University
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- Razal, Joselito M (author)
- Deakin University
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(creator_code:org_t)
- English 10 s.
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In: ACS Nano. - 1936-086X. ; 18:4, s. 3531-3541
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Abstract
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- Metallic lithium (Li) is the most attractive anode for Li batteries because it holds the highest theoretical specific capacity (3860 mA h g -1) and the lowest redox potential (-3.040 V vs SHE). However, the poor interface stability of the Li anode, which is caused by the high reactivity and dendrite formation of metallic Li upon cycling, leads to undesired electrochemical performance and safety issues. While two-dimensional boron nitride (BN) nanosheets have been utilized as an interfacial layer, the mechanism on how they stabilize the Li-electrolyte interface remains elusive. Here, we show how BN nanosheet interlayers suppress Li dendrite formation, enhance Li ion transport kinetics, facilitate Li deposition, and reduce electrolyte decomposition. We show through both simulation and experimental data that the desolvation process of a solvated Li ion within the interlayer nanochannels kinetically favors Li deposition. This process enables long cycling stability, reduced voltage polarization, improved interface stability, and negligible volume expansion. Their application as an interfacial layer in symmetric cells and full cells that display significantly improved electrochemical properties is also demonstrated. The knowledge gained in this study provides both critical insights and practical guidelines for designing a Li metal anode with significantly improved performance.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
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- art (subject category)
- ref (subject category)
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ACS Nano
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- By the author/editor
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Wang, Zhiyu
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Qin, Si
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Chen, Fangfang
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Chen, Shasha
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Liu, Dan
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Jiang, Degang
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show more...
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Zhang, Peng
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Mota-Santiago, P ...
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Hegh, Dylan
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Lynch, Peter
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Alotabi, Abdulra ...
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Andersson, Gunth ...
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Howlett, Patrick ...
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Forsyth, Maria
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Lei, Weiwei
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Razal, Joselito ...
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Condensed Matter ...
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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 ...
- Articles in the publication
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ACS Nano
- By the university
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Lund University