Estimation of energy density of Li-S batteries with liquid and solid electrolytes

Li, Chunmei; Zhang, Heng; Otaegui, Laida; Singh, Gurcharan; Armand, Michel; Rodrı́guez-Martı́nez, Lide M.

doi:10.1016/j.jpowsour.2016.06.109

Cited by 87 publications

(50 citation statements)

References 21 publications

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“…This cathode achieved a high current density of 4.8 mAh cm −2 and capacity retention of 91% for 100 cycles (Figure S14, Supporting Information). Under such high S utilization and areal capacity, it can be predicted that the cathode could achieve an energy density over 350 Wh kg −1 based on current liquid or solid battery technology . Therefore, we conclude that the excellent electrochemical performances of N‐PC@uCo/S cathode can be attributed to the special compositions and structures.…”

Section: Resultsmentioning

confidence: 99%

Highly Dispersed Cobalt Clusters in Nitrogen‐Doped Porous Carbon Enable Multiple Effects for High‐Performance Li–S Battery

Wang

Yang

Chen

et al. 2020

Advanced Energy Materials

220

146

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The lithium–sulfur (Li–S) battery is considered a promising candidate for the next generation of energy storage system due to its high specific energy density and low cost of raw materials. However, the practical application of Li–S batteries is severely limited by several weaknesses such as the shuttle effect of polysulfides and the insulation of the electrochemical products of sulfur and Li2S/Li2S2. Here, by doping nitrogen and integrating highly dispersed cobalt catalysts, a porous carbon nanocage derived from glucose adsorbed metal–organic framework is developed as the host for a sulfur cathode. This host structure combines the reported positive effects, including high conductivity, high sulfur loading, effective stress release, fast lithium‐ion kinetics, fast interface charge transport, fast redox of Li2Sn, and strong physical/chemical absorption, achieving a long cycle life (86% of capacity retention at 1C within 500 cycles) and high rate performance (600 mAh g−1 at 5C) for a Li–S battery. By combining experiments and density functional theoretical calculations, it is demonstrated that the well‐dispersed cobalt clusters play an important role in greatly improving the diffusion dynamics of lithium, and enhance the absorption and conversion capability of polysulfides in the host structure.

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Section: Resultsmentioning

confidence: 99%

Highly Dispersed Cobalt Clusters in Nitrogen‐Doped Porous Carbon Enable Multiple Effects for High‐Performance Li–S Battery

Wang

Yang

Chen

et al. 2020

Advanced Energy Materials

220

146

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“…CV and electrochemical impedance spectroscopy (EIS) measurements were carried out on an electrochemical workstation (Biologic VSP). The energy density of the cell was calculated based on an average cell voltage of 2.1 V and total weight mass of sulfur cathode, solid‐state electrolyte, and lithium anode 10c,20…”

Section: Methodsmentioning

confidence: 99%

Solid/Solid Interfacial Architecturing of Solid Polymer Electrolyte–Based All‐Solid‐State Lithium–Sulfur Batteries by Atomic Layer Deposition

Fan

Ding

Zhang

et al. 2019

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Solid polymer electrolytes (SPEs)-based all-solid-state lithium-sulfur batteries (ASSLSBs) have attracted extensive research attention due to their high energy density and safe operation, which provide potential solutions to the increasing need for harnessing higher energy densities. There is little progress made, however, in the development of ASSLSBs to improve simultaneously energy density and long-term cycling life, mostly due to the "shuttle effect" of lithium polysulfide intermediates in the SPEs and the low interfacial compatibility between the metal lithium anode and the SPE. In this work, the issues of solid/solid interfacial architecturing through atomic layer deposition of Al 2 O 3 on poly(ethylene oxide)-lithium bis(trifluoromethanesulfonyl)imide SPE surface are effectively addressed. The Al 2 O 3 coating promotes the suppression of lithium dendrite formation for over 500 h. ASSLSBs fabricated with two layers of Al 2 O 3 -coated SPE deliver high gravimetric/areal capacity and Coulombic efficiency, as well as excellent cycling stability and extremely low self-discharge rate. This work provides not only a simple and effective approach to boost the electrochemical performances of SPE-based ASSLSBs, but also enriches the fundamental understanding regarding the underlying mechanism responsible for their performance.

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“…It is worth noting that in ASSBs, battery module structures can be simplified by stacking bipolar electrodes and solid electrolyte in alternating layers in a single battery case, which reduces number of battery cases as what is needed in liquid batteries . Based on a cell‐level calculation of lithium–sulfur chemistry, at the same areal capacity, cells employing SSE could double the gravimetric energy density of cells with conventional liquid electrolyte . As shown in the Ragone plots in Figure a, the LIBs with liquid cells cannot achieve high energy and high power simultaneously.…”

Section: Introductionmentioning

confidence: 99%

Sulfide‐Based Solid‐State Electrolytes: Synthesis, Stability, and Potential for All‐Solid‐State Batteries

et al. 2019

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Due to their high ionic conductivity and adeciduate mechanical features for lamination, sulfide composites have received increasing attention as solid electrolyte in all-solid-state batteries. Their smaller electronegativity and binding energy to Li ions and bigger atomic radius provide high ionic conductivity and make them attractive for practical applications. In recent years, noticeable efforts have been made to develop high-performance sulfide solid-state electrolytes. However, sulfide solid-state electrolytes still face numerous challenges including: 1) the need for a higher stability voltage window, 2) a better electrode-electrolyte interface and air stability, and 3) a cost-effective approach for large-scale manufacturing. Herein, a comprehensive update on the properties (structural and chemical), synthesis of sulfide solid-state electrolytes, and the development of sulfide-based all-solid-state batteries is provided, including electrochemical and chemical stability, interface stabilization, and their applications in high performance and safe energy storage.

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Estimation of energy density of Li-S batteries with liquid and solid electrolytes

Cited by 87 publications

References 21 publications

Highly Dispersed Cobalt Clusters in Nitrogen‐Doped Porous Carbon Enable Multiple Effects for High‐Performance Li–S Battery

Highly Dispersed Cobalt Clusters in Nitrogen‐Doped Porous Carbon Enable Multiple Effects for High‐Performance Li–S Battery

Solid/Solid Interfacial Architecturing of Solid Polymer Electrolyte–Based All‐Solid‐State Lithium–Sulfur Batteries by Atomic Layer Deposition

Sulfide‐Based Solid‐State Electrolytes: Synthesis, Stability, and Potential for All‐Solid‐State Batteries

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