Electrochemical properties and interfacial stability of (PEO)10LiCF3SO3–TinO2n−1 composite polymer electrolytes for lithium/sulfur battery

Shin, Joon‐Ho; Kim, K.W.; Ahn, Hyo‐Jun; Ahn, Jou–Hyeon

doi:10.1016/s0921-5107(02)00226-x

Cited by 119 publications

(45 citation statements)

References 16 publications

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“…The cell delivered higher discharge capacity than the subsequent cycles and a flat discharge has been observed at 2.0 V. The capacity fading has been attributed to low utilization of sulfur, which arises to the aggregation of sulfur (polysulfide) upon cycling (Jeon et al, 2002). The electrochemical and interfacial properties TiO 2 -laden PEO-LiCF 3 SO 3 complexes have been reported by Shin et al (2002). The addition of TiO 2 into PEOLiCF 3 SO 3 complexes has substantially promoted not only the ionic conductivity but also interfacial resistance between composite polymer electrolyte and lithium metal anode.…”

Section: Polymer Electrolytesmentioning

confidence: 83%

Efficient Electrolytes for Lithiumâ€“Sulfur Batteries

Angulakshmi

Stephan

2015

Front. Energy Res.

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This review article mainly encompasses on the state-of-the-art electrolytes for lithiumsulfur batteries. Different strategies have been employed to address the issues of lithiumsulfur batteries across the world. One among them is identification of electrolytes and optimization of their properties for the applications in lithium-sulfur batteries. The electrolytes for lithium-sulfur batteries are broadly classified as (i) non-aqueous liquid electrolytes, (ii) ionic liquids, (iii) solid polymer, and (iv) glass-ceramic electrolytes. This article presents the properties, advantages, and limitations of each type of electrolytes. Also, the importance of electrolyte additives on the electrochemical performance of Li-S cells is discussed.

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Section: Polymer Electrolytesmentioning

confidence: 83%

Efficient Electrolytes for Lithiumâ€“Sulfur Batteries

Angulakshmi

Stephan

2015

Front. Energy Res.

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“…Since the first study on poly(ethylene oxide) (PEO) -based electrolyte for Li-S cells in the late of 1980s by DeGott, 37 several types of solid electrolytes have been investigated as Li-ion conducting materials for ASSLSBs, including those based on pure polymeric components, [38][39][40][41][42][43][44][45][46][47][48][49] ceramic electrolytes, [50][51][52][53][54][55][56][57][58][59][60][61][62][63][64][65][66][67] and composite electrolytes (mix of ceramic and other electrolytes). [68][69][70] Generally, PEs can be classified into two categories: solid polymer electrolytes (SPEs) and gel polymer electrolytes (GPEs).…”

Section: Current Statusmentioning

confidence: 99%

“…In the former electrolyte system, lithium salts are dissolved in high-molecular-weight polymers containing high concentration of Lewis base groups such as ether (-O-), carbonyl (-C=O), and cyano (-C≡N), which serve as ligands for coordinating Li + of the dissolved salt thus offering the necessary solvation energy for the polymer-lithium complex formation. In GPEs, low molecular weight components like small organic solvent (e.g., tetra(ethylene glycol) dimethyl ether, 39,71 DOL, 72 carbonates [73][74][75][76][77][78] ), and ionic liquids 79,80 are added as plasticizers for improving the ionic conductivity of a polymer electrolyte. The chemical structures of the extensively studied lithium salt, polymer matrices, and low molecular weight plasticizers are summarized in Fig.…”

Section: Current Statusmentioning

confidence: 99%

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Review—Solid Electrolytes for Safe and High Energy Density Lithium-Sulfur Batteries: Promises and Challenges

Judez

Zhang

et al. 2017

J. Electrochem. Soc.

157

128

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All-solid-state lithium-sulfur batteries (ASSLSBs) offer a means to enhance the energy density and safety of the state-of-art lithiumion batteries (LIBs), due to their high gravimetric energy density, low cost and environmental benignancy. In this work, the status of the research advances and perspectives on several types of solid electrolytes (SEs) developed for ASSLSBs are reviewed. The promises and challenges of utilizing SEs are discussed taking into account both theoretical calculation and experimental results, in hope of shedding some lights on future design of high energy density, cost competitive, and safe Li-S batteries. Lithium-sulfur (Li-S) batteries have been extensively investigated for lightweight applications (e.g., aircraft, artificial satellite, and unmanned aerial vehicles), and large-scale stationary energy storage, owing to their high gravimetric energy density, low cost, and environmental friendliness.1-3 The deployment of Li-S batteries into commercial market is hampered by several seemingly intrinsic problems resulting from the complex cell chemistry. Firstly, the electronically insulating nature of elemental sulfur (S 8 ) and end-product lithium sulfide (Li 2 S) leads to unstable electrochemical contact within S cathode. [4][5][6][7] Secondly, the soluble intermediates of polysulfide (PS) can diffuse between the cathode and anode (i.e., shuttle effect of PS), generating an active material loss in S cathode and degrading metallic Li anode. [4][5][6][7][8][9] Thirdly, the formation of 'dead' Li and Li dendrites upon cycling could not only decrease the Coulombic efficiency but also raise safety issues. [10][11][12] In recent years, various strategies have been attempted to overcome the above-mentioned problems. Most of the efforts have been devoted to enhance the electrochemical performance of Li-S batteries using well-designed cathode materials. 13 The diffusion of polysulfide species generated during discharge into electrolytes can be significantly suppressed by infusing sulfur into carbon materials in the cathode with an adequately controlled and engineered porosity and pore size, thus increasing the practical capacity and cyclability of Li-S batteries. These rational and creative strategies of cathode design have been covered by a number of recent reviews. 7,14,15 Besides, new binders (e.g., poly(ethylene oxide) (PEO) 16 and carboxymethycellulose (CMC) 17,18 ) have been employed for guarantying the integrity of the morphology and structure of S cathode, and enhancing the adhesion to current collector. The modification of separators (e.g., multiwall carbon nanotubes coated polypropylene 19 and lithiated Nafion 20 ) have been also developed for reducing the migration of polysulfides, thus mitigating the shuttle effect of PS. 21Apart from the strategies mentioned above, another approach, focusing on electrolyte formulation and modification, has been proved to be effective. The performances of Li-S batteries are largely affected by the electrolyte recipes, such as the type and identity of so...

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“…However, the low ionic conductivity of PEO-LiX electrolyte at room temperature (10 −7 -10 −6 S cm −1 ) is inadequate for the application in Li-S cells. Regarding to this problem, recently a promising strategy is to use inorganic ceramic filler such as SiO 2 , TiO 2 , ZrO 2 , Al 2 O 3 , and LiAlO 2 in the host polymer matrix to enhance the ionic conductivity of SPEs (Appetecchi et al, 2000;Chung et al, 2001;Croce et al, 2001;Shin et al, 2002b;Ahn et al, 2003;Dissanayake et al, 2003;Lin et al, 2005;Zhu et al, 2005;Jeong et al, 2007). The nano-filler is beneficial to reduce the crystallinity of polymer solvent so as to the increase of ion conductivity due to the amorphous phase.…”

Section: Solid Polymer Electrolytesmentioning

confidence: 99%

Developments of Electrolyte Systems for Lithiumâ€“Sulfur Batteries: A Review

Zhang³

et al. 2015

Front. Energy Res.

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With a theoretical specific energy five times higher than that of lithium-ion batteries (2,600 vs.~500Wh kg −1 ), lithium-sulfur (Li-S) batteries have been considered as one of the most promising energy storage systems for the electrification of vehicles. However, both the polysulfide shuttle effects of the sulfur cathode and dendrite formation of the lithium anode are still key limitations to practical use of traditional Li-S batteries. In this review, we focus on the recent developments in electrolyte systems. First, we start with a brief discussion on fundamentals of Li-S batteries and key challenges associated with traditional liquid cells. We then introduce the most recent progresses in liquid systems, including ether-based, carbonate-based, and ionic liquid-based electrolytes. And then we move on to the advances in solid systems, including polymer and non-polymer electrolytes. Finally, the opportunities and perspectives for future research in both the liquid and solid Li-S batteries are presented.

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Electrochemical properties and interfacial stability of (PEO)10LiCF3SO3–TinO2n−1 composite polymer electrolytes for lithium/sulfur battery

Cited by 119 publications

References 16 publications

Efficient Electrolytes for Lithiumâ€“Sulfur Batteries

Efficient Electrolytes for Lithiumâ€“Sulfur Batteries

Review—Solid Electrolytes for Safe and High Energy Density Lithium-Sulfur Batteries: Promises and Challenges

Developments of Electrolyte Systems for Lithiumâ€“Sulfur Batteries: A Review

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