A high-energy and long-cycling lithium–sulfur pouch cell via a macroporous catalytic cathode with double-end binding sites

Zhao, Chen; Xu, Gui‐Liang; Zhou, Yu; Zhang, Leicheng; Hwang, Inhui; Mo, Yu‐Xue; Ren, Yuxun; Cheng, Lei; Sun, Chengjun; Ren, Yang; Zuo, Xiaobing; Li, Juntao; Sun, Shi‐Gang; Amine, Khalil; Zhao, Tianshou

doi:10.1038/s41565-020-00797-w

Cited by 481 publications

(361 citation statements)

References 50 publications

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“…However, the weak interaction between nonpolar carbonaceous materials and polar LiPSs lowers their ability to suppress the shuttle effect, especially in the case of a high sulfur loading and high rate performance batteries. [ 6,16 ] Recently, catalysis has been proposed as an effective strategy to expedite the conversion of soluble LiPSs to insoluble discharge/charge products (Li 2 S/S 8 ) and fundamentally suppress the shuttle effect, [ 6,17,18 ] and significant effort has been made to increase the catalytic ability of carbonaceous materials by doping them with heteroatoms [ 17 ] and combining them with single transition metal atoms [ 18,19 ] and transition metal compounds. [ 20–25 ] Most recently, Peng et al.…”

Section: Introductionmentioning

confidence: 99%

Boosting Catalytic Activity by Seeding Nanocatalysts onto Interlayers to Inhibit Polysulfide Shuttling in Li–S Batteries

Xia

Hua

Wang

et al. 2021

Adv Funct Materials

141

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The shuttling of soluble lithium polysulfides (LiPSs) is one of the main bottlenecks to the practical use of Li–S batteries. It is reported that in situ synthesized ultrasmall vanadium nitride nanoparticles dispersed on porous nitrogen‐doped graphene (denoted VN@NG) as a catalytic interlayer solves this problem. The ultrasmall size of VN particles provide ample triple‐phase interfaces (the reactive interfaces among VN nanocatalyst, NG conductive substrate, and electrolyte) for accelerating LiPS conversion and Li2S deposition, which greatly reduces the accumulation of LiPSs in the electrolyte and therefore inhibits the shuttle effect. Their high catalytic activity is confirmed by a reduced activation energy of the Li2S4 conversion step based on temperature‐dependent cyclic voltammetric (CV) measurements and the reduced shuttle effect is detected by in situ Raman spectra. With the VN nanocatalyst, Li–S batteries have an outstanding cycling performance with a low capacity decay rate of 0.075% per cycle over 500 cycles at 2 C. A high capacity retention of 84.5% over 200 cycles at 0.2 C is achieved with a high sulfur loading of 7.3 mg cm−2.

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Section: Introductionmentioning

confidence: 99%

Boosting Catalytic Activity by Seeding Nanocatalysts onto Interlayers to Inhibit Polysulfide Shuttling in Li–S Batteries

Xia

Hua

Wang

et al. 2021

Adv Funct Materials

141

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show abstract

“…[ 1–3 ] However, sulfur cathodes still face several scientific issues, especially they discharge‐charge based on “dissolution‐precipitation” redox reaction mechanism with lithium polysulfide (LiPS) intermediates dissolved in the ether‐based electrolytes. [ 4–6 ]…”

Section: Introductionmentioning

confidence: 99%

Rationally Design a Sulfur Cathode with Solid‐Phase Conversion Mechanism for High Cycle‐Stable Li–S Batteries

Rao

Cheng

et al. 2021

Advanced Energy Materials

104

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Solid–solid reactions are very effective for solving the main challenges of lithium–sulfur (Li–S) batteries, such as the shuttle effect of polysulfides and the high dependence of electrolyte consumption. However, the low sulfur content and sluggish redox kinetics of such cathodes dramatically limit the practical energy density of Li–S batteries. Here a rationally designed hierarchical cathode to simultaneously solve above‐mentioned challenges is reported. With nanoscale sulfur as the core, selenium‐doped sulfurized polyacrylonitrile (PAN/S7Se) as the shell and micron‐scale secondary particle morphology, the proposed cathode realizes excellent solid–solid reaction kinetics in a commercial carbonate electrolyte under high active species loading and a relatively low electrolyte/sulfur ratio. Such an approach provides a promising solution toward practical lithium sulfur batteries.

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“…Recently, a strategy by embedding polar ZnS nanoparticles and Co–N–C SAC double‐end binding sites have been designed to enable a high‐energy and long‐cycling LSB. [ 279 ] The synergetic design of catalytic centers can simultaneously promote the fast charge transfer and tune the chemical affinity/catalytic conversion property of polysulfides, thereby accelerating reaction kinetics in MSBs. Notably, the remarkable electron configurations of SACs with the elaborated design of atom centers, distributed energy levels, and concentrated open metal sites will become one of the mainstreams in exploring future high‐performance MSBs with promoted dynamics on polysulfides’ catalytic conversion.…”

Section: Summaries and Future Perspectivesmentioning

confidence: 99%

Metal–Organic‐Framework‐Derived Nanostructures as Multifaceted Electrodes in Metal–Sulfur Batteries

Yan

Cheng

et al. 2021

Advanced Materials

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Metal‐sulfur batteries (MSBs) are considered up‐and‐coming future‐generation energy storage systems because of their prominent theoretical energy density. However, the practical applications of MSBs are still hampered by several critical challenges, i.e., the shuttle effects, sluggish redox kinetics, and low conductivity of sulfur species. Recently, benefiting from the high surface area, regulated networks, molecular/atomic‐level reactive sites, the metal‐organic frameworks (MOFs)‐derived nanostructures have emerged as efficient and durable multifaceted electrodes in MSBs. Herein, a timely review is presented on recent advancements in designing MOF‐derived electrodes, including fabricating strategies, composition management, topography control, and electrochemical performance assessment. Particularly, the inherent charge transfer, intrinsic polysulfide immobilization, and catalytic conversion on designing and engineering of MOF nanostructures for efficient MSBs are systematically discussed. In the end, the essence of how MOFs’ nanostructures influence their electrochemical properties in MSBs and conclude the future tendencies regarding the construction of MOF‐derived electrodes in MSBs is exposed. It is believed that this progress review will provide significant experimental/theoretical guidance in designing and understanding the MOF‐derived nanostructures as multifaceted electrodes, thus offering promising orientations for the future development of fast‐kinetic and robust MSBs in broad energy fields.

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A high-energy and long-cycling lithium–sulfur pouch cell via a macroporous catalytic cathode with double-end binding sites

Cited by 481 publications

References 50 publications

Boosting Catalytic Activity by Seeding Nanocatalysts onto Interlayers to Inhibit Polysulfide Shuttling in Li–S Batteries

Boosting Catalytic Activity by Seeding Nanocatalysts onto Interlayers to Inhibit Polysulfide Shuttling in Li–S Batteries

Rationally Design a Sulfur Cathode with Solid‐Phase Conversion Mechanism for High Cycle‐Stable Li–S Batteries

Metal–Organic‐Framework‐Derived Nanostructures as Multifaceted Electrodes in Metal–Sulfur Batteries

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