A hydrophilic separator for high performance lithium sulfur batteries

Li, Guo-Chun; Jing, Hangkun; Su, Zhong; Lai, Chao; Chen, Long; Yuan, Chaochun; Li, Huanhuan; Liu, Liang

doi:10.1039/c5ta01970b

Cited by 71 publications

(28 citation statements)

References 43 publications

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“…Unmodified Polydopamine Coating : Unmodified polydopamine coatings have been extensively used to change the surface properties of membranes for use in desalination, microbial fuel cells, biodevices, wastewater treatment, oil/seawater separation, electrodialysis, membrane bioreactors, and as battery separators . These coatings have been shown to increase hydrophilicity and underwater oleophobicity of many hydrophobic membrane surfaces, which can result in improved membrane performance though increased flux, and decreased microbial adhesion .…”

Section: Applications Of Catecholamine Polymersmentioning

confidence: 99%

Versatile Surface Modification Using Polydopamine and Related Polycatecholamines: Chemistry, Structure, and Applications

Barclay

Hegab

Clarke

et al. 2017

Adv Materials Inter

301

223

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Almost ten years ago, Lee et al. [13] formulated a universal adhesive coating based on observation of the strong attachment by mussels through their byssal threads to virtually all types of inorganic and organic surfaces. The amino acid compositions of the mussel foot proteins that generate the attachment are rich in catechol and amine groups. [13][14][15] These groups associate under marine conditions, forming strong covalent and noncovalent interactions with substrates. [13] This led to the idea that both catechol and amine groups were crucial in forming robust, wide spectrum adhesive nanolayers [16,17] and consequently dopamine was conceived as a powerful building block for spontaneous deposition of thin polymer films. The dopamine monomer is deposited onto unadulterated surfaces through self-assembly and oxidative cross-linking from mild pH aqueous solution in a rapid reaction. This results in a durable, nanoscale, conformal, and hydrophilic coating that can be readily modified to introduce specific surface chemistries for a particular application. [18][19][20][21][22] These bioinspired, polydopamine materials are chemically and structurally indistinguishable from eumelanins found in the human body, [23,24] providing excellent biocompatibility. Additionally, polydopamine has broad electromagnetic absorption and excellent photothermal energy conversion [25] as well as having ionic-electronic hybrid conductivity. [26] Along with the excellent coating performance, these properties provide a vast array of potential applications for polydopamine materials.In this article, we explain what is known about polydopamine and related catecholamine coatings; their formation, the adhesion mechanism, and their physicochemical properties and we also review the applications of these materials (Figure 1). Since 2011, there have been a number of reviews on this subject matter, including general reviews on the physicochemical properties of polydopamine coatings [11,20,[27][28][29] and their applications. [20,27,30] There are also a number of more specific reviews on the chemical synthesis and modulation of polycatecholamine coatings, [31] the biomedical applications of these coatings, [8,[32][33][34] their electronic properties, [26,35] the use of polydopamine to make films at fluid interfaces, [36] in hierarchically constructed particles, [33] and capsules, [30] exploitation of polycatecholamine coatings in membrane filtration, [37] polydopamine-derived carbon materials, [38] and the use of coordination chemistry in catechol-based materials. [39] Nonetheless, this area of research is growing so rapidly [25,27] that many recent Polydopamine and related polycatecholamines can be easily deposited onto almost any surface from mild, aqueous solution. This results in durable, nanoscale coatings that exhibit high biocompatibility and have useful chemical and electronic properties. Additionally, these materials can be readily chemically and physically modified, and consequently, they are used extensively for surface modification. This ...

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Section: Applications Of Catecholamine Polymersmentioning

confidence: 99%

Versatile Surface Modification Using Polydopamine and Related Polycatecholamines: Chemistry, Structure, and Applications

Barclay

Hegab

Clarke

et al. 2017

Adv Materials Inter

301

223

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“…11 It was firstly applied as the additive in the sulfur cathode to improve the electrochemical performances of Li-S batteries. 100,101 Later Al 2 O 3 was applied as the coating layer on both sulfur cathodes [102][103][104] and separators, 12,73,105 which has proved to be effective in enhancing the cycle stability of Li-S batteries. For instance, Shi's group coated an ultrathin Al 2 O 3 film via ALD on the graphene-sulphur (G-S) composite.…”

Section: E Al 2 Omentioning

confidence: 99%

“…3,6 Therefore multiple and combined strategies, such as developing new electrolyte and binder, 9,10 protecting the anode, 11 modifying the separator 12 and the sulfur cathode 13,14 are used to solve the above problems. Among which, using the nanostructured materials to modify the sulfur cathode are most popular.…”

Section: Introductionmentioning

confidence: 99%

Recent development of metal compound applications in lithium–sulphur batteries

Lai

2017

J. Mater. Res.

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Lithium-sulphur (Li-S) batteries are one of the most promising candidates for the next generation of energy storage systems to alleviate the energy crisis. However, Li-S batteries' commercialization faces the challenges of low active materials utilization, poor cycling life, and low energy density. Recently, tremendous progress has been achieved in improving the electrode performances and tap density by using the nanostructured metal compounds in Li-S batteries. In this review, we not only present the latest various nanostructured metal compounds applications in Li-S batteries, including metal oxides, metal sulphides, metal carbides, metal nitrides, and metal organic frameworks, but also we focus on the interaction mechanisms between these polar metal compounds with polysulphides. The issues and bottlenecks of these metal compounds are concluded and the corresponding available solutions to address these issues are proposed. This systematic discussion and proposed strategies can offer avenues to the practical application of Li-S batteries in the near future.

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“…However, combining commercially available separators with functional coatings gives the separator the potential to inhibit the shuttle effect. And the potential coating materials mainly include carbon (such as CNTs and OMNC), polymer (such as PMMA and PDA) and inorganic materials (such as LTO‐CNF) . Thus, inserting a functional interlayer between cathode and commercial separator to inhibit the shuttle effect has received extensive research as a simple and effective strategy.…”

Section: Introductionmentioning

confidence: 99%

A Composited Interlayer with Dual‐Effect Trap and Repulsion for Inhibition of Polysulfides in Lithium‐Sulfur Batteries

Luo

Huang

et al. 2020

ChemElectroChem

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The shuttle effect of polysulfides in lithium-sulfur batteries (LSBs) is the biggest obstacle for their practical application. Inserting a composite interlayer between the cathode and separator to solve the problem is a simple and effective strategy. Polyethylene oxide (PEO) is a suitable choice for trapping polysulfides, owing to its strong dipole-dipole interaction with polysulfides. In addition, in order to enhances the inhibitory effect of the composite interlayer on the polysulfide shuttling, the addition of negatively charged sodium lignosulfonate (SL) into the composite interlayer can effectively repel the polysulfide, thus achieving a dual-effect inhibition on the shuttle effect together with PEO, and obtaining better cell performances. Furthermore, owing to the addition of PEO and SL, the physical and electrochemical performances have been significantly improved, including, but not limited to, the liquid electrolyte uptake (251.5 wt %), ionic conductivity (5.9 × 10 À 4 S cm À 1 ), and lithium transferences number (0.61). Therefore, this is a simple and effective strategy to prepare composite interlayer with PEO and SL to achieve dual-effect suppression of the shuttle effect in LSBs.

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A hydrophilic separator for high performance lithium sulfur batteries

Cited by 71 publications

References 43 publications

Versatile Surface Modification Using Polydopamine and Related Polycatecholamines: Chemistry, Structure, and Applications

Versatile Surface Modification Using Polydopamine and Related Polycatecholamines: Chemistry, Structure, and Applications

Recent development of metal compound applications in lithium–sulphur batteries

A Composited Interlayer with Dual‐Effect Trap and Repulsion for Inhibition of Polysulfides in Lithium‐Sulfur Batteries

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