Nucleophilic substitution between polysulfides and binders unexpectedly stabilizing lithium sulfur battery

Ling, Min; Zhang, Liang; Zheng, Tianyue; Feng, Jun; Guo, Jinghua; Mai, Liqiang; Liu, Gao

doi:10.1016/j.nanoen.2017.05.020

Cited by 121 publications

(108 citation statements)

References 62 publications

Supporting

Mentioning

100

Contrasting

Unclassified

Order By: Relevance

“…Starch is also a natural biopolymer also with good mechanical properties. Duan et al [141] subjected starch to a [140]. Copyright 2017 Elsevier gelatinization process before using the product to fabricate a host-free framework using only Super-P and commercial sulfur powder.…”

Section: Starchmentioning

confidence: 99%

Housing Sulfur in Polymer Composite Frameworks for Li–S Batteries

et al. 2019

View full text Add to dashboard Cite

HIGHLIGHTS• The roles of binders in both sulfur host-based and sulfur host-free systems are considered for polymer composite frameworks in lithium-sulfur batteries.• The applications of the existing and potential multifunctional polymer composite frameworks are summarized for manufacturing lithium-sulfur batteries.ABSTRACT Extensive efforts have been devoted to the design of micro-, nano-, and/or molecular structures of sulfur hosts to address the challenges of lithium-sulfur (Li-S) batteries, yet comparatively little research has been carried out on the binders in Li-S batteries. Herein, we systematically review the polymer composite frameworks that confine the sulfur within the sulfur electrode, taking the roles of sulfur hosts and functions of binders into consideration. In particular, we investigate the binding mechanism between the binder and sulfur host (such as mechanical interlocking and interfacial interactions), the chemical interactions between the polymer binder and sulfur (such as covalent bonding, electrostatic bonding, etc.), as well as the beneficial functions that polymer binders can impart on Li-S cathodes, such as conductive binders, electrolyte intake, adhesion strength etc. This work could provide a more comprehensive strategy in designing sulfur electrodes for long-life, large-capacity and high-rate Li-S battery.

show abstract

Section: Starchmentioning

confidence: 99%

Housing Sulfur in Polymer Composite Frameworks for Li–S Batteries

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Similar to alginates, carrageenans are charged polysaccharides extracted from seaweeds. Instead of the carboxylate group, they carry ester sulfate groups on the repeating units of a linear polysaccharide backbone and may stabilize sulfur cathodes in lithium–sulfur batteries through possible reaction with polysulfides . Further naturally charged polysaccharides, such as karaya gum or gum arabic have been used, as well as carboxymethylated polysaccharides, such as carboxymethyl gellan gum or carboxymethyl fenugreek gum, and processed polysaccharides, such as xanthan gum, all of which feature carboxylic acid groups and thus provide binder properties mainly for anode active materials, as discussed above.…”

Section: Electrodesmentioning

confidence: 99%

Sustainable Battery Materials from Biomass

Liedel

2020

ChemSusChem

114

View full text Add to dashboard Cite

Sustainable sources of energy have been identified as a possible way out of today's oil dependency and are being rapidly developed. In contrast, storage of energy to a large extent still relies on heavy metals in batteries. Especially when built from biomass‐derived organics, organic batteries are promising alternatives and pave the way towards truly sustainable energy storage. First described in 2008, research on biomass‐derived electrodes has been taken up by a multitude of researchers worldwide. Nowadays, in principle, electrodes in batteries could be composed of all kinds of carbonized and noncarbonized biomass: On one hand, all kinds of (waste) biomass may be carbonized and used in anodes of lithium‐ or sodium‐ion batteries, cathodes in metal–sulfur or metal–oxygen batteries, or as conductive additives. On the other hand, a plethora of biomolecules, such as quinones, flavins, or carboxylates, contain redox‐active groups that can be used as redox‐active components in electrodes with very little chemical modification. Biomass‐based binders can replace toxic halogenated commercial binders to enable a truly sustainable future of energy storage devices. Besides the electrodes, electrolytes and separators may also be synthesized from biomass. In this Review, recent research progress in this rapidly emerging field is summarized with a focus on potentially fully biowaste‐derived batteries.

show abstract

“…This process usually causes irreversible loss of active materials and low Coulombic efficiency, which are associated with fast capacity fading, low energy efficiency, severe self‐discharge, and poor cycling stability . To address these problems, considerable efforts have been devoted to the development of cathodes, current collectors, electrolytes, anodes, and separators in Li–S batteries …”

Section: Introductionmentioning

confidence: 99%

Porous Organic Polymers for Polysulfide Trapping in Lithium–Sulfur Batteries

Cheng

Pan

Zhong

et al. 2018

Adv Funct Materials

159

112

View full text Add to dashboard Cite

Lithium-sulfur (Li-S) batteries have attracted considerable attentions in electronic energy storage and conversion because of their high theoretical energy density and cost effectiveness. The rapid capacity degradation, mainly caused by the notorious shuttle effect of polysulfides (PSs), remains a great challenge preventing practical application. Porous organic polymers (POPs) are one type of promising carbon materials to confine PSs within the cathode region. Here, the research progress on POPs and POPs-derived carbon materials in Li-S batteries is summarized, and the importance of pore surface chemistry in uniform distribution of sulfur and effective trapping of PSs is highlighted. POPs serve as promising sulfur host materials, interlayers, and separators in Li-S batteries. Their significance and innovation, especially new synthetic methods for promoting sulfur content, reversible capacity, Coulombic efficiency and cycling stability, have been demonstrated. The perspectives and critical challenges that need to be addressed for POPsbased Li-S batteries are also discussed. Some attractive electrode materials and concepts based on POPs have been proposed to improve energy density and electrochemical performance, which are anticipated to shed some light on future development of POPs in advanced Li-S batteries. a theoretical capacity of 3840 mA h g −1 , the conventional Li-S batteries could provide an average battery voltage of 2.2 V and a high theoretical energy density of 2570 W h kg −1 , which is 2-3 times higher than practical energy density of the commercial lithium ion batteries (LIBs). [4][5][6] Moreover, low cost, natural abundance, and environmental friendliness of sulfur endow Li-S batteries with great development potential and space compared with LIBs. Despite the overwhelming advantages, the practical application of Li-S batteries suffers from several technological obstacles, such as (i) poor electrical conductivities of sulfur and solid-state discharging products (Li 2 S 2 and Li 2 S); (ii) the dissolution of soluble lithium polysulfides (PSs) intermediates in the electrolytes and their free migration between cathode and anode, which results in notorious shuttle effect of PSs; (iii) huge volume fluctuation (≈80%) of the active materials during discharge and charge owing to large density difference between element sulfur and solid-state products. The major disadvantage is the shuttle effect of PSs among the above problems. During discharge and charge cycle, the dissolved high-order PSs generated in the cathode move toward the anode and react with lithium metal to form low-order PSs or a passive layer on the anode surface, low-order PSs diffuse back to the cathode and produce high-order PSs again. This process usually causes irreversible loss of active materials and low Coulombic efficiency, which are associated with fast capacity fading, low energy efficiency, severe self-discharge, and poor cycling stability. [1,[7][8][9][10] To address these problems, considerable efforts have been devoted to the devel...

show abstract

Nucleophilic substitution between polysulfides and binders unexpectedly stabilizing lithium sulfur battery

Cited by 121 publications

References 62 publications

Housing Sulfur in Polymer Composite Frameworks for Li–S Batteries

Housing Sulfur in Polymer Composite Frameworks for Li–S Batteries

Sustainable Battery Materials from Biomass

Porous Organic Polymers for Polysulfide Trapping in Lithium–Sulfur Batteries

Contact Info

Product

Resources

About