2020
DOI: 10.1039/d0ee01074j
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Lithium degradation in lithium–sulfur batteries: insights into inventory depletion and interphasial evolution with cycling

Abstract:

Anode-free full cells enable a quantitative estimate of lithium inventory loss rates, which is correlated with the growth of an electrolyte decomposition layer, even as metallic lithium stays intact with cycling.

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Cited by 110 publications
(59 citation statements)
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“…The most promising among these are lithium‐sulfur (LiS) and lithium metal paired with a traditional layered‐oxide cathode (lithium‐metal battery or LMB). [ 3–7 ] Both systems take advantage of a lithium‐metal anode (LMA), whose high specific energy of 3860 mAh g −1 is roughly ten times that of graphite. This can be utilized for a more than 30% improvement in cell‐level energy density when directly substituted into a typical lithium‐ion system.…”
Section: Introductionmentioning
confidence: 99%
“…The most promising among these are lithium‐sulfur (LiS) and lithium metal paired with a traditional layered‐oxide cathode (lithium‐metal battery or LMB). [ 3–7 ] Both systems take advantage of a lithium‐metal anode (LMA), whose high specific energy of 3860 mAh g −1 is roughly ten times that of graphite. This can be utilized for a more than 30% improvement in cell‐level energy density when directly substituted into a typical lithium‐ion system.…”
Section: Introductionmentioning
confidence: 99%
“…Extensive efforts have been devoted to solving these challenges to improve the performance of Li–S battery. [ 19–23 ] However, the mass loading of electrode materials are often ignored when only the specific capacity and cycling performance are pursued. In nanoscale materials and thin film electrodes (<1 mg cm −2 ), the batteries tend to show remarkable scaled ions storage capacity.…”
Section: Introductionmentioning
confidence: 99%
“…However, before the Li metal anode can become a viable choice in Li-S batteries, some challenges need to be overcome. [258][259][260] With regard to the infinite shape change, material design, and structure optimization for 3D hosts to accommodate the metallic Li and mitigate the thickness fluctuation during cycling have been taken as promising approaches to the practical use of Li metal anodes, although further improvements are still desired. Until now, various 3D host materials, such as carbons (graphene aerogels, carbon nanofibers, CNT sponges, carbon felts, carbon clothes, and carbonized wood), [261][262][263][264][265][266] polymers (polyimide nanofibers, PAN nanofibers, and polyethylenimine sponge), [267][268][269] and conductive metals and metal compounds (Ni foams, Cu foams, and MXene aerogels), [270][271][272] have been reported to regulate the stripping/plating behavior of Li metal anodes.…”
Section: Design Of the LI Anodementioning
confidence: 99%