2017
DOI: 10.1002/admi.201700166
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Lithium‐Metal Foil Surface Modification: An Effective Method to Improve the Cycling Performance of Lithium‐Metal Batteries

Abstract: Although the lithium-metal anode has the advantages of both high gravimetric and volumetric capacities (3862 Ah kg −1 and 2085 Ah L −1 ) [13] and is already successfully used in primary batteries, it is still plagued by a series of issues that limit its successful operation in rechargeable applications, when organic solvent based electrolytes are used. [14] One of them is the nature of the lithium-metal dissolution and redeposition in the discharge and charge process together with the composition of the solid … Show more

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Cited by 167 publications
(175 citation statements)
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References 45 publications
(52 reference statements)
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“…From the evolution of the Li deposit with increasing capacity, the preferential Li deposition site can be identified for the electrodes. For the control Li electrode, as shown in Figure a–c, the initial Li deposition was irregularly localized, which would be attributed to the preferential Li deposition on less resistive surfaces . As the capacity increased, the Li deposited area was expanded covering the whole electrode surface.…”
Section: Resultsmentioning
confidence: 94%
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“…From the evolution of the Li deposit with increasing capacity, the preferential Li deposition site can be identified for the electrodes. For the control Li electrode, as shown in Figure a–c, the initial Li deposition was irregularly localized, which would be attributed to the preferential Li deposition on less resistive surfaces . As the capacity increased, the Li deposited area was expanded covering the whole electrode surface.…”
Section: Resultsmentioning
confidence: 94%
“…Furthermore, the surface roughness and defects were remarkably reduced through the lamination process indicating the occurrence of surface deformation. As suggested in a previous publication, the original native passivation film consisting of various lithium compounds such as Li 2 O, Li 2 CO 3 and LiOH can be deformed by the pressing. In this aspect, the native passivation film on the wall and bottom sides of the square hole would be different from that of the pristine surface and top surface of the MP‐Li electrodes.…”
Section: Resultsmentioning
confidence: 94%
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“…The higher storing temperature of M3FSI was required since M3FSI is solid at room temperature. Prior the storage, the Li‐metal anodes were roll‐pressed according to the method described by Becking et al . This method reduces in one pass both the surface roughness of pristine Li‐metal anodes as well as the thickness of the native surface film.…”
Section: Examples Of Ils and Pilsmentioning
confidence: 99%
“…This includes implementing IL based electrolytes to reduce polysulfide solubility, coating of the Li‐metal anode with PILs to offer surface protection, and using PIL as a cathode binder to improve cycling stability. Much of this work is the result of a collaboration between partners within the HELIS (High energy lithium sulphur cells and batteries) consortium, an EU H2020 funded project for the development Li−S batteries for commercial applications …”
Section: Introductionmentioning
confidence: 99%