Highly dispersed sulfur in ordered mesoporous carbon sphere as a composite cathode for rechargeable polymer Li/S battery

Liang, Xiao; Zhang, Wen; Liu, Yu; Zhang, Hao; Huang, Linjuan; Jin, Jun

doi:10.1016/j.jpowsour.2010.12.052

Cited by 243 publications

(146 citation statements)

References 12 publications

Supporting

Mentioning

142

Contrasting

Order By: Relevance

“…[ 189 ] Mesoporous carbon spheres were also studied as the conductive host, and a reversible capacity of about 800 mAh/g after 25 cycles was achieved with a gel electrolyte. [ 190 ] The addition of mesoporous silica into mesoporous C/S composites can stabilize the cycling performance because extra mesopores act as a reservoir for polysulfi des and prevent loss of active species during cycling. [ 191 ] The observed high coulombic effi ciency suggested that the polysulfi de shuttle effect was almost completely eliminated.…”

Section: Composites Of Nanoporous Carbon With Sulfurmentioning

confidence: 99%

Porous Electrode Materials for Lithium‐Ion Batteries – How to Prepare Them and What Makes Them Special

Qian

Stein

2012

Advanced Energy Materials

644

458

View full text Add to dashboard Cite

Numerous benefits of porous electrode materials for lithium ion batteries (LIBs) have been demonstrated, including examples of higher rate capabilities, better cycle lives, and sometimes greater gravimetric capacities at a given rate compared to nonporous bulk materials. These properties promise advantages of porous electrode materials for LIBs in electric and hybrid electric vehicles, portable electronic devices, and stationary electrical energy storage. This review highlights methods of synthesizing porous electrode materials by templating and template‐free methods and discusses how the structural features of porous electrodes influence their electrochemical properties. A section on electrochemical properties of porous electrodes provides examples that illustrate the influence of pore and wall architecture and interconnectivity, surface area, particle morphology, and nanocomposite formation on the utilization of the electrode materials, specific capacities, rate capabilities, and structural stability during lithiation and delithiation processes. Recent applications of porous solids as components for three‐dimensionally interpenetrating battery architectures are also described.

show abstract

Section: Composites Of Nanoporous Carbon With Sulfurmentioning

confidence: 99%

Porous Electrode Materials for Lithium‐Ion Batteries – How to Prepare Them and What Makes Them Special

Qian

Stein

2012

Advanced Energy Materials

644

458

View full text Add to dashboard Cite

show abstract

“…In the recent review paper on Li metal anode for rechargeable batteries, we have summarized previous achievements in using polymer electrolytes and inorganic solid-state Li-ion conductors to block the penetration of Li dendrites. [ 47 ] So far there are several papers reporting the use of such solid-state polymer electrolytes [133][134][135][136][137] and inorganic electrolytes [ 82,83,[138][139][140][141][142] in Li-S related batteries. However, there are no direct reports about using solid-state polymer electrolytes and inorganic electrolytes to suppress Li dendrite in Li-S batteries.…”

Section: Dendrite Prevention Via Solid Electrolytesmentioning

confidence: 99%

Anodes for Rechargeable Lithium‐Sulfur Batteries

Cao

et al. 2015

Advanced Energy Materials

464

311

View full text Add to dashboard Cite

this makes it one of the most promising candidates to meet the energy needs for powering future EVs. [ 6,[19][20][21][22][23][24][25][26] Research on Li-S batteries began in the early 1960s. [ 24,27 ] In the following fi ve decades, only limited progress was made based on sporadic research efforts in this fi eld. Recently, in the light of nanoporous carbon materials, the cell performance was greatly improved and the research passion on Li-S batteries has been revived. [ 20,28,29 ] Unlike Li-ion batteries that use Li + -ion insertion chemistry in intercalation inorganic compounds for both cathode and anode, Li-S batteries are based on a conversion reaction of S forming Li 2 S via polysulfi des as intermediate species (Li 2 S n , n = 4-8), which could deliver a high specifi c capacity of 1672 mAh g −1 . [ 20,24 ] However, to realize commercial Li-S batteries, there are still many technical challenges to be solved from cathode to anode, as well as electrolyte. [ 22,30,31 ] The performances of different components in Li-S batteries are often related to each other. For example, the improvements in S based cathode could benefi t from reduced degradation in metallic Li anode by minimizing polysulfi de migration and shuttle effect. In general, Li-S batteries suffer from low S utilization and short cycle life, which originate from poor conductivity of sulfur and its discharged product Li 2 S, self-discharge, large volume expansion (≈80%) upon the formation of Li 2 S, and the dissolution of polysulfi des in liquid electrolytes. [ 24,32,33 ] The insulating nature of S and the large volume expansion of S cathode upon discharge can be largely overcome via forming nanocomposite with highly porous carbon materials, which could greatly improve the S utilization and rate performance. [ 21,25,32,34 ] In addition, the porous cathode structure could hold the formed polysulfi des in the pores so as to reduce the degree of dissolution of polysulfi des into the electrolyte. Recently, it was also found that the synthesis of metastable small S molecules of S 2-4 confi ned in a conductive microporous carbon matrix could avoid the unfavorable formation of long chain polysulfi des, thus avoiding the S dissolution problem. [35][36][37] Although signifi cant improvements have been made in the cyclability of S/C composite cathodes, [ 21,24,28,38 ] there are still many problems involved in Li-S batteries before this technology can be adopted for practical applications. In contrast to the enormous research efforts on S cathode side, the Li metal anode in Li-S batteries, which is directly involved in the shuttle mechanism and the capacity failure, has attracted much less attention. [ 24,39 ] Recently, with the signifi cant improvements in the development of high capacity S cathodes using stable C/S composites, the research spotlight is falling on the anode side With the signifi cant progress that has been made toward the development of cathode materials and electrolytes in lithium-sulfur (Li-S) batteries in recent years, the stability of the anod...

show abstract

“…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%

“…[38][39][40][41][42][43]45,46,48,49 In comparison, the dependence of conductivity on temperature for ceramic electrolytes generally follows a continuous Arrhenius trend. For example, the lithium superionic conductor, Li 10 GeP 2 S 12 , holds an extremely high bulk conductivity of > 10 −2 S cm −1 at 25…”

Section: Future Needs and Prospectsmentioning

confidence: 99%

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

View full text Add to dashboard Cite

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...

show abstract

Highly dispersed sulfur in ordered mesoporous carbon sphere as a composite cathode for rechargeable polymer Li/S battery

Cited by 243 publications

References 12 publications

Porous Electrode Materials for Lithium‐Ion Batteries – How to Prepare Them and What Makes Them Special

Porous Electrode Materials for Lithium‐Ion Batteries – How to Prepare Them and What Makes Them Special

Anodes for Rechargeable Lithium‐Sulfur Batteries

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

Contact Info

Product

Resources

About