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Article
Chemistry, Multidisciplinary
Yan Zhang et al.
Summary: Single-atom catalysts are important for improving the performance of lithium-sulfur batteries. In this study, novel single-atom Nb catalysts were designed to enhance sulfur immobilization and catalysis. The Nb-N4 active moiety possessed unfilled antibonding orbitals, promoting hybridization and anchoring of lithium polysulfides. The Nb-SAs@NC cell exhibited high capacity retention, superior rate performance, and competitive areal capacity, providing new possibilities for high-energy-density Li-S batteries.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Review
Chemistry, Physical
Ben Hu et al.
Summary: In this article, the application of covalent organic frameworks (COFs) in addressing the issues of sulfur hosts, modified separators, artificial solid electrolyte interphase layers, and solid-state electrolytes in lithium-sulfur batteries is summarized. The focus is on the design and chemistry of COFs for upgrading Li-S batteries. The existing difficulties, prospective remedies, and future research directions for COFs in Li-S batteries are also discussed, laying the foundation for the advancement of this fascinating class of materials.
ADVANCED ENERGY MATERIALS
(2023)
Article
Energy & Fuels
Zhuangnan Li et al.
Summary: This study presents the use of pre-lithiated metallic 1T phase two-dimensional molybdenum disulfide (LixMoS2) as a sulfur host material for high-performance lithium-sulfur batteries. The lithiation of conductive MoS2 nanosheets leads to improved adsorption of lithium polysulfides, enhanced Li+ transport, accelerated electrochemical reaction kinetics, and superior electrocatalytic activity. The pouch cell batteries based on this design deliver a high energy density of 441 Wh kg(-1) and 735 Wh l(-1), with a capacity retention of 85.2% after 200 cycles.
Article
Chemistry, Multidisciplinary
Le Chen et al.
Summary: Multiscale spherical V2C MXene is designed as a high-efficiency bifunctional promotor for the evolution of sulfur and lithium species in Li-S batteries. The activity of VC can be maximized by tuning the scale, showing efficient LiPS scavenging, improved Li2S nucleation and decomposition kinetics, and effective regulation of Li-ion dynamic behavior for stabilized lithium plating/stripping.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Tae Woog Kang et al.
Summary: A zwitterionic covalent organic framework (Zwitt-COF) with well-defined chemical and pore structures is prepared as a solid electrolyte, which can accelerate the dissociation and transport of Li ions. The Zwitt-COF solid electrolyte exhibits high ionic conductivity and electrochemical stability, leading to superior long-term cycle performance in all-solid-state Li-metal batteries.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Tuoya Naren et al.
Summary: A new polymer containing carboxylic acid and cyclic ether moieties has been developed to form an artificial solid electrolyte interface (SEI) with lithium metal. This SEI effectively inhibits the formation of lithium dendrites and allows for stable cycling with high capacity retention in carbonate electrolytes.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Wenbo Liu et al.
Summary: Covalent-organic frameworks (COFs) show great potential as sulfur hosts for lithium-sulfur batteries (LSBs) to solve the shuttle effect of intermediate lithium polysulfides (LiPSs). In this study, a pentiptycene-based D2h symmetrical octatopic polyaldehyde was synthesized as a building block for preparing a 3D-flu-COF with a high loading capacity of sulfur, strong LiPS adsorption capability, and facile ion diffusion. When used as a sulfur host for LSBs, 3D-flu-COF exhibits high capacity, outstanding rate capability, and excellent stability, making it one of the best COF-based sulfur host materials for LSBs.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Physical
Mingchao Wang et al.
Summary: This study overcomes the low charge carrier mobility issue of two-dimensional conjugated polymers (2DCPs) by synthesizing two semiconducting 2DCPs (2DCP-MPc, with M = Cu or Ni) with high mobility. The 2DCP-MPcs exhibit highly dispersive energy bands and small electron-hole effective masses, and demonstrate exceptionally high electron and hole mobilities at room temperature, surpassing those of linear conjugated polymers and 2DCPs. This work highlights the critical role of effective conjugation in enhancing the charge transport properties of 2DCPs and the great potential of high-mobility 2DCPs for future (opto)electronics.
Article
Chemistry, Physical
Jinqiu Zhou et al.
Summary: In order to optimize the degradation issues in high-voltage lithium metal batteries, it is necessary to have robust solid-electrolyte interfaces (SEI) on both the anode and cathode surfaces. The introduction of a nonafluorobutane-1-sulfonic acid (NFSA) additive assists in the formation of a stable and robust SEI to protect both electrodes. By using NFSA, high concentrations of NFSALi and NFSA(-) can be achieved on the surface of the anode and cathode respectively, resulting in the formation of conformal and dense SEI passivation films, ensuring stable operation of the battery.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Xin Dai et al.
Summary: The key means to improve the performance of lithium-sulfur batteries (LSBs) is to reduce the internal resistance and accelerate the conversion kinetics of lithium polysulfides (LiPSs). In this study, a flexible hierarchical CNF-CNT membrane decorated with Co-doped NiS2 nanoparticles (Co-NiS2@CNF-CNT) is designed as an interlayer for LSBs, inspired by a grass root system. The Co-NiS2@CNF-CNT interlayer shows enhanced chemical adsorption and catalytic activities toward LiPSs, resulting in high rate performance, reversible capacity, prolonged cycle life, and increased areal capacity of the LSBs.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Hongfei Gu et al.
Summary: In this study, metal single-atom catalysts immobilized on nitrogen-doped Ti3C2Tx were successfully prepared and applied as polypropylene separator coatings to enhance the performance of Li-S batteries. Among them, Cu SA/N-Ti3C2Tx/PP exhibited remarkable properties, including excellent rate performance, superb cycling stability, and high sulfur utilization even at large sulfur loadings. This work provides insights into improving the electrochemical performance of advanced batteries for energy storage and conversion.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Xiaoqun Qi et al.
Summary: The use of non-solvating electrolytes is considered a promising solution for practical applications of Li-S batteries. However, long-life Li-S batteries with non-solvating electrolytes are rarely reported. The capacity decay in these batteries is mainly due to the accumulation of dead Li2S at the cathode side. A proposed electrochemical strategy can reactivate the accumulated Li2S and revive the batteries, leading to improved cycling stability and accelerated dynamics.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Materials Science, Ceramics
Jing Luo et al.
Summary: NASICON solid electrolyte Na3Zr2Si2PO12 can be used as cladding materials for cathodes to improve battery cycle stability. The electronic conductivity of NZSP is improved by doping with Co, while the ionic conductivity remains stable.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Dong Guo et al.
Summary: This study presents a solid-state electrolyte based on covalent organic framework (COF) that exhibits high Li+ conductivity and enhanced mechanical toughness. By solidifying a tailored liquid electrolyte in situ, the charge-carrier concentration in the COF channels is increased, resulting in a 100-fold increase in Li+ conductivity. The COF membrane also demonstrates foldable solid-state pouch cell capabilities.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Bin Yang et al.
Summary: We have successfully constructed a new type of intercalation membrane material by covalently grafting organic tris(hydroxypropyl)phosphine (THPP) molecules onto hydroxylated multi-walled carbon nanotubes (CNT-OH) as a functional interlayer for the advanced lithium-sulfur batteries. The as-assembled interlayer has been demonstrated to be responsible for fast conversion kinetics of polysulfides, inhibition of polysulfide shuttle effect, as well as the formation of stable solid electrolyte interphase (SEI) layer.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Energy & Fuels
Guangmin Zhou et al.
Summary: The authors analyze key Li-S cell parameters, propose an energy density calculation, and discuss the design targets for practical high-performance Li-S batteries.
Article
Chemistry, Multidisciplinary
Tao Chen et al.
Summary: Researchers have designed and developed a thermal stable electrolyte for lithium-metal batteries, allowing them to operate stably in high temperature conditions. The stable solvation structure of the electrolyte defines the behavior of lithium deposition and the evolution of the solid electrolyte interface, resulting in high Coulombic efficiency and the prevention of dendritic growth.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Lianbo Ma et al.
Summary: A highly efficient electrocatalyst Fe/Co-N-HPC is constructed to capture and catalyze the conversion of polysulfides, thereby improving the performance of Li-S batteries, including outstanding rate capability and long-term cyclic stability.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Jie Xu et al.
Summary: A sulfonate-rich COF (SCOF-2) was designed, synthesized, and used to modify the separator of Li-S batteries, leading to enhanced Li+ migration, reduced Li-dendrite formation, and improved battery performance. The modified batteries showed low attenuation rate and excellent anti-self-discharge performance, even with high-sulfur-loading cathodes and lean electrolytes, indicating great potential for practical application.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Linfeng Zhong et al.
Summary: The use of anthraquinone and benzene as linkers in the preparation of AQ-CMP resulted in a polymer with favorable electronic structure and high density of active sites, leading to excellent charge-discharge performance with stable high capacity and long cycle life.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Zhanshuang Jin et al.
Summary: The conversion of Li2S2 to Li2S is a crucial step in lithium-sulfur (Li-S) batteries, and the catalysts in these batteries are often ineffective due to poor contact with solid Li2S2. By designing pomegranate-like sulfur nanoclusters@nitrogen-doped carbon@nitrogen-doped carbon nanospheres (S@N-C@N-C NSs), the rapid conversion of ultrafine Li2S2 to Li2S can be achieved. The cathodes with this nanostructure exhibit excellent sulfur utilization, high rate performance, and low capacity decay rate, showing potential for energy storage applications.
Article
Chemistry, Physical
Yuxiang Wang et al.
Summary: By covalently grafting branched PEG chains of different lengths onto the pore surface of COFs to construct crowded nanochannels, anion movement can be effectively inhibited and the lithium ion conduction performance can be improved. Under high temperature conditions, using COF with longer PEG chains can achieve higher ionic conductivity and higher transference number, ultimately leading to high-performance full cell assemblies.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Chunshao Mo et al.
Summary: Alkoxylation chemistry is introduced as a solution for exploring a new family of highly-fluorescent octupolar 2D-conjugated organic polymers/frameworks, combining far-red emission, high fluorescence quantum yield, and strong two-photon absorption. The alkoxy-substituted polymers display significantly redshifted emission, high quantum yields, and large two-photon absorption cross sections, making them suitable for applications in warm white light-emitting diodes and bio-imaging.
Article
Chemistry, Multidisciplinary
Zhaohuai Li et al.
ADVANCED MATERIALS
(2020)
Article
Chemistry, Multidisciplinary
Chunshao Mo et al.
Article
Chemistry, Multidisciplinary
Meijia Yang et al.
ADVANCED FUNCTIONAL MATERIALS
(2020)
Article
Chemistry, Physical
Yu Cao et al.
ENERGY STORAGE MATERIALS
(2020)
Article
Chemistry, Multidisciplinary
Junsong Xu et al.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2020)
Article
Chemistry, Multidisciplinary
Peng Shi et al.
ADVANCED MATERIALS
(2019)
Article
Chemistry, Multidisciplinary
Gen Zhang et al.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2019)
Article
Chemistry, Multidisciplinary
Subhadip Goswami et al.
Article
Chemistry, Multidisciplinary
Pengpeng Shao et al.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2018)
Article
Multidisciplinary Sciences
Enquan Jin et al.
Article
Chemistry, Physical
Zahid Ali Ghazi et al.
ADVANCED ENERGY MATERIALS
(2016)
Article
Chemistry, Multidisciplinary
Frank Y. Fan et al.
ADVANCED MATERIALS
(2015)
Article
Chemistry, Physical
Francesca Terenziani et al.