Design of Quasi-MOF Nanospheres as a Dynamic Electrocatalyst toward Accelerated Sulfur Reduction Reaction for High-Performance Lithium-Sulfur Batteries

Article Nanoscience & Nanotechnology

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

Chen Zhao et al.

Summary: A novel cathode design for Li-S batteries utilizing single-atom Co catalyst and ZnS nanoparticles has successfully suppressed the shuttling effect, resulting in stable cycling and high energy performances.

NATURE NANOTECHNOLOGY (2021)

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Article Multidisciplinary Sciences

Constructing multifunctional solid electrolyte interface via in-situ polymerization for dendrite-free and low N/P ratio lithium metal batteries

Dan Luo et al.

Summary: A stable multifunctional solid electrolyte interface (SEI) can be constructed by employing electrolyte additives containing catechol and acrylic groups via in-situ anionic polymerization, leading to uniform Li deposition and dendrite-free anode in lithium metal batteries. This strategy offers remarkable cycling performance with high current density, ultra-long cycle life, high cumulative capacity, and stable cycling under high temperature conditions.

NATURE COMMUNICATIONS (2021)

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Article Chemistry, Physical

Atomically dispersed Fe in a C2N Based Catalyst as a Sulfur Host for Efficient Lithium-Sulfur Batteries

Zhifu Liang et al.

Summary: This study reports on the use of 2D layered organic material, C2N, loaded with atomically dispersed iron as an effective sulfur host in lithium-sulfur batteries (LSBs), which shows significantly improved rate performance and long-term cycling stability. The Fe/C2N-based cathodes exhibit high initial capacities and maintain remarkable specific capacity retention even after multiple cycles at high rates.

ADVANCED ENERGY MATERIALS (2021)

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Article Chemistry, Physical

Unsaturated coordination polymer frameworks as multifunctional sulfur reservoir for fast and durable lithium-sulfur batteries

Yanfei Zhu et al.

Summary: This research explores the coordinative unsaturation in ferric hexacyanoferrate for improved lithium-sulfur batteries, demonstrating fast, stable, and efficient sulfur electrochemistry with good rate capability and excellent cyclic stability. The coordinatively unsaturated Fe sites offer higher adsorbability and conversion catalytic activity to polysulfides, enabling enhanced performance in Li-S batteries.

NANO ENERGY (2021)

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Article Nanoscience & Nanotechnology

Bimetallic Hollow Tubular NiCoOx as a Bifunctional Electrocatalyst for Enhanced Oxygen Reduction and Evolution Reaction

Yafei Xue et al.

Summary: The study developed a facile strategy to synthesize hollow tubular bimetallic Ni-Co oxide, enhancing its bifunctionality and redox reaction kinetics, showing admirable electrocatalytic activities. The optimized sample with a specific mass ratio of Ni and Co displayed comparable oxygen reduction reaction (ORR) performance to commercial catalysts and superior oxygen evolution reaction (OER) performance.

ACS APPLIED MATERIALS & INTERFACES (2021)

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Article Chemistry, Multidisciplinary

An Organodiselenide Comediator to Facilitate Sulfur Redox Kinetics in Lithium-Sulfur Batteries

Meng Zhao et al.

Summary: This study introduces diphenyl diselenide (DPDSe) as a redox co-mediator to accelerate the sulfur redox kinetics in lithium-sulfur batteries, improving rate performance and cycle stability. The use of DPDSe leads to faster sulfur redox kinetics, increased lithium sulfide deposition, and enhanced overall battery performance, demonstrating potential for high-energy density battery applications.

ADVANCED MATERIALS (2021)

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Article Chemistry, Multidisciplinary

Strong Chemical Interaction between Lithium Polysulfides and Flame-Retardant Polyphosphazene for Lithium-Sulfur Batteries with Enhanced Safety and Electrochemical Performance

Peng Chen et al.

Summary: The study introduces a flame-retardant polyphosphazene-modified holey graphene/carbonized cellulose paper as a multifunctional interlayer in Li-S batteries, which effectively traps LiPS, increases the diffusion coefficient for lithium ions, inhibits shuttling effect of LiPS, reduces flammability of the sulfur cathode and electrolyte, and enhances safety of Li-S batteries.

ADVANCED MATERIALS (2021)

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Article Chemistry, Multidisciplinary

In Situ Localized Polysulfide Injector for the Activation of Bulk Lithium Sulfide

Matthew Li et al.

Summary: Activation of commercial Li2S is a key challenge in commercializing sulfur-based Li-ion battery systems. This study uses commercial Na2S as a polysulfide injector to activate commercial Li2S, allowing for activation at lower voltages and with lower electrolyte content. Compared to pre-solvated redox mediators, this technique offers a simpler and more efficient way to activate commercial Li2S.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2021)

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Article Chemistry, Physical

Deciphering interpenetrated interface of transition metal oxides/phosphates from atomic level for reliable Li/S electrocatalytic behavior

Daorui Wang et al.

Summary: An electronic modulation strategy was developed to regulate the catalytic behavior of transition metal oxides/transition metal phosphates interface towards Li/S surface chemistry, improving the redox reaction kinetics in lithium/sulfur batteries.

NANO ENERGY (2021)

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Article Chemistry, Multidisciplinary

Cobalt-Doping of Molybdenum Disulfide for Enhanced Catalytic Polysulfide Conversion in Lithium-Sulfur Batteries

Wen Liu et al.

Summary: This study proposed Co-doped MoS2 as a metal sulfide catalyst for lithium-sulfur batteries, successfully accelerating the catalytic conversion of sulfur compounds and improving battery performance, indicating that doping is an effective way to optimize metal sulfide catalysts.

ACS NANO (2021)

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Article Chemistry, Multidisciplinary

Two Ships in a Bottle Design for Zn-Ag-O Catalyst Enabling Selective and Long-Lasting CO2 Electroreduction

Zhen Zhang et al.

Summary: This study presents a two ships in a bottle design for ternary Zn-Ag-O catalysts, with bimetallic electron configurations modulated by constructing a Zn-Ag-O interface. This design enhances CO selectivity, suppresses HCOOH generation, and achieves high energy efficiency, high CO Faradaic efficiency, and remarkable stability.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2021)

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Article Chemistry, Physical

Improving poisoning resistance of electrocatalysts via alloying strategy for high-performance lithium-sulfur batteries

Xueqin Song et al.

Summary: An alloying strategy is proposed to enhance the adsorption of sulfur on transition metal catalysts, addressing the issue of sulfur poisoning. The Co-Te alloy catalyst shows excellent catalytic performance, improving the rate capability of sulfur redox reactions and suppressing the shuttle effect.

ENERGY STORAGE MATERIALS (2021)

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Article Chemistry, Physical

Tubular CoFeP@CN as a Mott-Schottky Catalyst with Multiple Adsorption Sites for Robust Lithium-Sulfur Batteries

Chaoqi Zhang et al.

Summary: A Mott-Schottky catalyst based on bimetallic phosphide CoFeP nanocrystals supported on carbon nitride tubular nanostructures is proposed to enhance the performance of lithium-sulfur batteries. The CoFeP@CN composites demonstrated superior rate performance and cycling stability, effectively addressing the issues often overlooked in LSBs.

ADVANCED ENERGY MATERIALS (2021)

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Article Chemistry, Multidisciplinary

Selective Catalysis Remedies Polysulfide Shuttling in Lithium-Sulfur Batteries

Wuxing Hua et al.

Summary: Selective catalysis is proposed as a fundamental remedy for the shuttle effect of soluble lithium polysulfides in Li-S batteries, benefiting from its ability to decelerate the accumulation of polysulfides and enhance battery performance, as experimentally and theoretically demonstrated in this study.

ADVANCED MATERIALS (2021)

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Article Multidisciplinary Sciences

Artificial dual solid-electrolyte interfaces based on in situ organothiol transformation in lithium sulfur battery

Wei Guo et al.

Summary: The research introduces a bifunctional electrolyte additive, 1,3,5-benzenetrithiol, to address the interfacial instability and lithium polysulfide shuttling issues in lithium-sulfur batteries. By forming solid-electrolyte interfaces on both electrodes, this approach improves reversible lithium deposition/stripping while reducing the dissolution and shuttling of lithium polysulfides. This innovative interface reaction based on bond chemistry demonstrates enhanced performance and cycling stability in Li-S batteries.

NATURE COMMUNICATIONS (2021)

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Article Chemistry, Physical

Unraveling the Catalytic Activity of Fe-Based Compounds toward Li2Sx in Li-S Chemical System from d-p Bands

Jiadong Shen et al.

Summary: This study synthesized a series of Fe-based materials as modified layers for battery separators, and found that the d-p band center model can reasonably combine reaction potential and performance differences, providing theoretical guidance for the design of superior Li-S batteries.

ADVANCED ENERGY MATERIALS (2021)

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Article Chemistry, Multidisciplinary

Demystifying the catalysis in lithium-sulfur batteries: Characterization methods and techniques

Chuannan Geng et al.

Summary: This review provides a comprehensive overview of characterization techniques on the catalyst in lithium-sulfur batteries, emphasizing their significance and calling for more efforts in developing precise and fast techniques. Future developments are envisioned for a better understanding of catalysis towards practical lithium-sulfur batteries.

SUSMAT (2021)

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Article Chemistry, Multidisciplinary