Application of lithiated Nafion ionomer film as functional separator for lithium sulfur cells

Jin, Zhaoqing; Xie, Kai; Hong, Xiaobin; Hu, Zongqian; Liu, Xiang

doi:10.1016/j.jpowsour.2012.06.100

Cited by 244 publications

(174 citation statements)

References 20 publications

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“…24. 25,58,95,[228][229][230][231][232][233][234][235][236][237][238][239][240][241][242][243] Polymeric solid electrolytes combine the advantages of solid-state electrochemistry with the ease of processing inherent to plastic materials. However, it's necessary to overcome their relatively poor mechanical integrity and temperature endurance, which in turn might be enhanced by using polymers with supramolecular architectures, 244 and by using thermally stable polymer matrix and lithium salts.…”

Section: Polymeric Electrolytesmentioning

confidence: 99%

A chemistry and material perspective on lithium redox flow batteries towards high-density electrical energy storage

et al. 2015

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Electrical energy storage system such as secondary batteries is the principle power source for portable electronics, electric vehicles and stationary energy storage. As an emerging battery technology, Li-redox flow batteries inherit the advantageous features of modular design of conventional redox flow batteries and high voltage and energy efficiency of Li-ion batteries, showing great promise as efficient electrical energy storage system in transportation, commercial, and residential applications. The chemistry of lithium redox flow batteries with aqueous or non-aqueous electrolyte enables widened electrochemical potential window thus may provide much greater energy density and efficiency than conventional redox flow batteries based on proton chemistry. This Review summarizes the design rationale, fundamentals and characterization of Li-redox flow batteries from a chemistry and material perspective, with particular emphasis on the new chemistries and materials. The latest advances and associated challenges/ opportunities are comprehensively discussed.

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Section: Polymeric Electrolytesmentioning

confidence: 99%

A chemistry and material perspective on lithium redox flow batteries towards high-density electrical energy storage

et al. 2015

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“…Nafion is known for its excellent stability and high cationic conductivity and widely used in the proton exchange membrane fuel cells [173e175]. More importantly, Nafion is a commercial product utilized as cation selective material with the ability to inhibit the polysulfide anions from transporting through [176]. Based on these capabilities, lithiated Nafion ionomer [176] and Nafion-coated polypropylene [177] have been investigated as separators and functional barriers for LieS cells to improve the cycle performance.…”

Section: Membrane As the Separatormentioning

confidence: 99%

Recent advances in lithium–sulfur batteries

Chen

Shaw

2014

Journal of Power Sources

400

262

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“…After ion exchange in LiOH solution, Nafion becomes Li + conductive, which therefore has been considered as a candidate material for separator or electrolyte in lithium batteries. 4,[19][20][21] Inspired by previous findings, we, in this work, investigated the electrochemical performance of silicon nanoparticles mixed with either Nafion or PVDF as a binder. Ion-exchanged Nafion was also studied as a binder to compare with pure Nafion binder by replacing protons with Li + .…”

mentioning

confidence: 96%

High Capacity Silicon Electrodes with Nafion as Binders for Lithium-Ion Batteries

Zhang

Cheng

2015

J. Electrochem. Soc.

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Silicon is capable of delivering a high theoretical specific capacity of 3579 mAh g −1 which is about 10 times higher than that of the state-of-the-art graphite based negative electrodes for lithium-ion batteries. However, the poor cycle life of silicon electrodes, caused by the large volumetric strain during cycling, limits the commercialization of silicon electrodes. As one of the essential components, the polymeric binder is critical to the performance and durability of lithium-ion batteries as it keeps the integrity of electrodes, maintains conductive path and must be stable in the electrolyte. In this work, we demonstrate that electrodes consisting of silicon nanoparticles mixed with commercially available Nafion and ion-exchanged Nafion can maintain a high specific capacity over 2000 mAh g −1 cycled between 1.0 V and 0.01 V. For comparison, the capacity of electrodes made of the same silicon nanoparticles mixed with a traditional binder, polyvinylidene fluoride (PVDF), fades rapidly. In addition, stable cycling at 1C rate for more than 500 cycles is achieved by limiting the lithiation capacity to 1200 mAh g There is an intense effort worldwide to develop new electrode materials for lithium-ion batteries (LIBs) to satisfy future high power and energy density applications. Silicon can provide theoretical capacity up to 3579 mAh g −1 (based on Li 15 Si 4 ), which is about ten times higher than that of graphite electrode. 1 Resulting from large volume changes as lithium goes into and out of silicon, cracking and pulverization of Si electrodes can cause the loss of electrical contact and new solid electrolyte interphase (SEI) formation on exposed surface, leading to rapid capacity fade. Novel binders and nanostructured silicon are two general approaches to improve the durability and performance of silicon electrodes.For commercial LIBs, electrodes are composed of three essential components, which are active material, conductive additive and binder. The fundamental role of binder is to keep the electrode mechanically intact and adhered well to the current collector. Other ideal characteristics of binders include electrochemical stability over wide potential range, high melting point, low swelling rate in nonaqueous electrolyte, high lithium ionic conductivity, high electrical conductivity, capability to sustain volume change of active material particles, and good manufacturability.2-4 Today, polyvinylidene fluoride (PVDF, monomer -CH 2 -CF 2 -) and styrene butadiene rubber (SBR) are commonly used as binders for graphite anodes, and PVDF and polytetrafluoroethylene (PTFE, monomer -CF 2 -CF 2 -) can be used as binders for cathodes. 2PVDF is known to perform poorly for high energy density electrode materials, such as silicon, because it fails to accommodate the large volume change during lithiation and delithiation. 5,6 Presently, there is much interest in developing effective binders for siliconbased electrodes. Crosslinked elastomeric polymer (PVDF + tetrafluoroethylene + propylene) was shown to maintain good cap...

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Application of lithiated Nafion ionomer film as functional separator for lithium sulfur cells

Cited by 244 publications

References 20 publications

A chemistry and material perspective on lithium redox flow batteries towards high-density electrical energy storage

A chemistry and material perspective on lithium redox flow batteries towards high-density electrical energy storage

Recent advances in lithium–sulfur batteries

High Capacity Silicon Electrodes with Nafion as Binders for Lithium-Ion Batteries

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