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Combination of solid polymer electrolytes and lithiophilic zinc for improved plating/stripping efficiency in anode-free lithium metal solid-state batteries
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- Bertoli, Luca (author)
- Uppsala universitet,Institutionen för kemi - Ångström,Politecn Milan, Dipartimento Chim Mat & Ingn Chim Giulio Natta, Via Luigi Mancinelli 7, I-20131 Milan, Italy.
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- Bloch, Sophia (author)
- Uppsala universitet,Institutionen för kemi - Ångström
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- Andersson, Edvin (author)
- Uppsala universitet,Institutionen för kemi - Ångström
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- Elsevier BV, 2023
- 2023
- English.
- In: Electrochimica Acta. - : Elsevier BV. - 0013-4686 .- 1873-3859. ; 464
- Journal article (peer-reviewed)
Abstract
Subject headings
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- Anode-free lithium metal batteries and solid-state batteries represent some of the most promising alternatives to the current Li-ion technology. The possibility to reach high energy density, due to the exploitation of Li-metal plating/stripping and the elimination of excess anode material, motivate the interest at both academic and in-dustrial levels. Despite these favourable properties, the use of Li-metal has always been extremely challenging and inefficient. This becomes particularly relevant in anode-free systems where no excess of lithium is introduced in the cell. The efficiency and quality of the deposition process is therefore of utmost importance. To optimize the Li-metal plating process, a combination of solid polymer electrolytes and a lithiophilic metal is applied herein, using in situ deposition of a zinc interlayer from a PEO-based SPE to modify the Cu current collector. Im-provements in specific capacity, coulombic efficiency and cyclability with the addition of zinc as lithiophilic metal is verified in full anode-free solid-state Li-batteries, while plating/stripping in half-cell configuration provides additional insights into the relevant mechanisms. The exploitation of the in situ deposited lithiophilic layer reveals an innovative and practical optimization strategy for the future of anode-free solid-state batteries.
Subject headings
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
Keyword
- Anode-free batteries
- Solid polymer electrolytes
- Li-metal batteries
- Lithiophilic metals
- Zinc triflate
Publication and Content Type
- ref (subject category)
- art (subject category)
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- Bloch, Sophia
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