Electronic and ionic co-conductive coating on the separator towards high-performance lithium–sulfur batteries

Wang, Qingsong; Zhang, Wen; Yang, Jianhua; Jin, Jun; Huang, Xiao; Wu, Xiaofeng; Han, Jinduo

doi:10.1016/j.jpowsour.2015.11.109

Cited by 72 publications

(30 citation statements)

References 47 publications

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“…Complex inorganic oxides materials (e.g., ceramics, and glass fibers) were tried to modify separators for Li–S cells. Effective ion separators were demonstrated by coating montmorillonite on the surface of separators .…”

Section: Nanostructured Oxides For Li–s Batteriesmentioning

confidence: 99%

Nanostructured Metal Oxides and Sulfides for Lithium–Sulfur Batteries

et al. 2017

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Lithium-sulfur (Li-S) batteries with high energy density and long cycle life are considered to be one of the most promising next-generation energy-storage systems beyond routine lithium-ion batteries. Various approaches have been proposed to break down technical barriers in Li-S battery systems. The use of nanostructured metal oxides and sulfides for high sulfur utilization and long life span of Li-S batteries is reviewed here. The relationships between the intrinsic properties of metal oxide/sulfide hosts and electrochemical performances of Li-S batteries are discussed. Nanostructured metal oxides/sulfides hosts used in solid sulfur cathodes, separators/interlayers, lithium-metal-anode protection, and lithium polysulfides batteries are discussed respectively. Prospects for the future developments of Li-S batteries with nanostructured metal oxides/sulfides are also discussed.

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Section: Nanostructured Oxides For Li–s Batteriesmentioning

confidence: 99%

Nanostructured Metal Oxides and Sulfides for Lithium–Sulfur Batteries

et al. 2017

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“…Based on as imilar principle,am odificationo ft he separatorw as introduced in recent years. [9,10] Thes eparator, as an indispensable part, has ag reat impacto nt he performanceo fL i-S batteries.T he shuttle effect is caused by the diffusion of soluble polysulfides through the separator, leading to short cycle lifes and low discharge capacities.M odification of the separatorb yu sing conductive carbon materials may be ac onvenient and efficient approacht op reventt he polysulfides from shuttling between the cathode and anode. Ketjen black (KB,E C600JD) is au nique electroconductive carbon black and its high surface area and pore volume are beneficial to accommodate the polysulfides and provide more sites for insoluble lithium sulfide.…”

Section: Introductionmentioning

confidence: 99%

Lithium–Sulfur Batteries with High Rate and Cycle Performance by using Multilayered Separators coated with Ketjen Black

et al. 2016

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The commercialization of lithium–sulfur (Li–S) batteries remains challenging due to their poor rate performance and low cycle stability, which can be partly attributed to the insulation of sulfur/lithium sulfide and the migration of polysulfides from the sulfur cathode to the anode. While much effort has been devoted to designing the structure of sulfur cathodes for suppressing the dissolution of polysulfides, relatively little emphasis has been placed on modifying the separator. In this work, we demonstrated an approach to modify the pristine separator by coating a Ketjen Black (KB) layer, and we mainly investigated the impact of different layers of modified‐separator on electrochemical performance of Li–S battery. With the three layers of modified‐separator, the battery possess a high initial discharge capacity of 1430 mAh g−1 at 0.1 C and deliver discharge capacities of 770 mAh g−1 and 522 mAh g−1 after 150 cycles, respectively, at high rate of 2 C and 4 C. Moreover, when the rate is increased to 6 C, the cell can also deliver a discharge capacity of 300 mAh g−1. These encouraging electrochemical results highlight the excellent rate capability and high cycle stability of Li–S battery, which could be attributed to high electron conductivity of the KB layer and the new cell configuration. This facile approach to restrain the shuttle effect of polysulfides makes further progress in obtaining enhanced performance of Li–S battery.

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“…Various combinations of PS‐ and e‐functional materials were tested for optimizing the two components of e‐ and PS‐functional materials. For example, mesoporous MnO 2 nanosheet‐wrapped carbon nanofiber, graphene–Al 2 O 3 composites, Ca(OH) 2 –carbon hollow nanorods, RuO 2 ‐decorated mesoporous carbon, and a composite of lithium aluminum germanium phosphate, carbon black, and CNTs were investigated as the functional separators for Li–S batteries. The best configuration for optimizing the functional separators for Li–S batteries has not been determined.…”

Section: E‐functionsmentioning

confidence: 99%

Rational Design of Nanostructured Functional Interlayer/Separator for Advanced Li–S Batteries

Jeong

Kim

Nam

et al. 2018

Adv Funct Materials

313

197

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The lithium-sulfur (Li-S) battery is considered as a promising future energy storage device owing to its high theoretical energy density, low cost of the raw active material (sulfur), and its environmental friendliness. On the other hand, there are still challenging issues for the practical applications of Li-S batteries, including low sulfur utilization, poor cyclability, and rate capability. Although considerable efforts are made to overcome the current obstacles in Li-S batteries, one is still far from meeting the requirements for the commercialization of Li-S batteries. This review outlines the recent progress in Li-S batteries based on novel configurations, such as incorporating functional interlayers/separators beyond the approach for preparing novel cathodes, and discusses the role of the configuration in Li-S batteries. The functions of the newly introduced functional interlayer/separator are highlighted to address the problems of Li-S batteries. From classification of the functions, the perspectives and outlook are presented to rationally design a novel functional interlayer/separator for high-performance Li-S batteries.

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Electronic and ionic co-conductive coating on the separator towards high-performance lithium–sulfur batteries

Cited by 72 publications

References 47 publications

Nanostructured Metal Oxides and Sulfides for Lithium–Sulfur Batteries

Nanostructured Metal Oxides and Sulfides for Lithium–Sulfur Batteries

Lithium–Sulfur Batteries with High Rate and Cycle Performance by using Multilayered Separators coated with Ketjen Black

Rational Design of Nanostructured Functional Interlayer/Separator for Advanced Li–S Batteries

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