4.7 Article

Regulating the Solvation Structure of Potassium Ions Using a Multidentate Ether in Potassium Metal Batteries

Related references

Note: Only part of the references are listed.
Article Chemistry, Multidisciplinary

Polyacrylonitrile-Reinforced Composite Gel Polymer Electrolytes for Stable Potassium Metal Anodes

Yue Zhang et al.

Summary: This study develops a robust composite gel polymer electrolyte (CGPE) to address the challenges of potassium-ion batteries, such as potassium dendrite growth and short circuiting. The CGPE improves the mechanical properties and widens the electrochemical stability window, enabling stable potassium metal anode. The study provides a potential and convenient strategy for safer and more durable potassium metal batteries.

SMALL (2022)

Article Chemistry, Multidisciplinary

Single-Atom Catalyst Aggregates: Size-Matching is Critical to Electrocatalytic Performance in Sulfur Cathodes

Xiaodong Meng et al.

Summary: The study demonstrates that aggregated cobalt single-atom catalysts (SACs) attached to graphene via porphyrins can overcome challenges associated with catalyst/reactant size mismatch, enabling efficient electrocatalysis for improved performance of sulfur cathodes. This approach achieves a high atomic utilization efficiency, enhances the electrocatalytic effect, and results in outstanding capacity retention and rate capability in Li-S cells.

ADVANCED SCIENCE (2022)

Article Engineering, Environmental

Covalently grafting conjugated porous polymers to MXene offers a two-dimensional sandwich-structured electrocatalytic sulfur host for lithium-sulfur batteries

Yawen Cao et al.

Summary: A two-dimensional sandwich structure electrocatalytic sulfur host is synthesized by grafting a conjugated microporous polymer to MXene nanosheets, which offers chemisorption sites to capture various polysulfides and accelerates their conversion. Lithium-sulfur (Li-S) batteries using this sulfur host exhibit high specific capacity, outstanding rate capability, and low capacity decay. This methodology provides a universal approach for constructing electrocatalytic 2D composites that can be used not only in Li-S batteries but also in other contemporary energy technologies.

CHEMICAL ENGINEERING JOURNAL (2022)

Article Engineering, Environmental

Coaxially grafting conjugated microporous polymers containing single-atom cobalt catalysts to carbon nanotubes enhances sulfur cathode reaction kinetics

Yuncan Jia et al.

Summary: Conjugated microporous polymers (CMPs) containing Co single-atom catalysts (Co SACs) and being grafted to multi-walled carbon nanotubes (MWNTs) have been synthesized and investigated for their potential use in lithium-sulfur (Li-S) batteries. The composite material, labeled as Co-CMP-MWNTs, shows excellent performance in terms of specific capacity, rate capability, and cycling stability. The results demonstrate the potential of Co SACs to enhance the cathode reaction kinetics in Li-S batteries, and the methodology described may have applications in other energy conversion technologies.

CHEMICAL ENGINEERING JOURNAL (2022)

Article Chemistry, Multidisciplinary

Non-Solvating and Low-Dielectricity Cosolvent for Anion-Derived Solid Electrolyte Interphases in Lithium Metal Batteries

Jun-Fan Ding et al.

Summary: The cosolvents play a critical role in the solvation structure of Li+ and the formation of SEI on working Li metal anodes, with NL cosolvents enhancing the interaction between anion and Li+ to induce an anion-derived inorganic-rich SEI. A solvent with proper relative binding energy toward Li+ and dielectric constant is suitable as NL cosolvent.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

Article Chemistry, Physical

Highly stable potassium metal batteries enabled by regulating surface chemistry in ether electrolyte

Huwei Wang et al.

Summary: This study reports for the first time a potassium nitrate-containing ether electrolyte for use in 4 V-class PMBs at a moderate potassium bis(fluorosulfonyl)amide (KFSI) concentration, forming a stable N/F-rich solid electrolyte interphase (SEI) that enables dense and uniform potassium deposition, leading to a significantly improved cycle life of the PMBs.

ENERGY STORAGE MATERIALS (2021)

Article Chemistry, Multidisciplinary

Towards Dendrite-Free Potassium-Metal Batteries: Rational Design of a Multifunctional 3D Polyvinyl Alcohol-Borax Layer

Shuo Wang et al.

Summary: By designing a 3D polyvinyl-alcohol (PVA)-borax layer, dendrite-free potassium-metal batteries can be achieved with stable electrochemical performance. Experimental results show that the use of PVA-borax@Cu enables stable cycling at different depths of discharge.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

Article Biochemical Research Methods

Triple-pulse excitation: An efficient way for suppressing background signals and eliminating radio-frequency acoustic ringing in direct polarization NMR experiments

Fenfen Wang et al.

Summary: A triple-pulse excitation scheme is proposed in this work to suppress background signals and eliminate RF acoustic ringing in NMR experiments, improving the accuracy and stability of data acquisition. This new method effectively suppresses background signals and eliminates acoustic ringing effects, demonstrating its effectiveness in various samples containing H-1 and quadrupolar nuclei.

JOURNAL OF MAGNETIC RESONANCE (2021)

Article Chemistry, Multidisciplinary

MXene-Based Dendrite-Free Potassium Metal Batteries

Xiao Tang et al.

ADVANCED MATERIALS (2020)

Article Chemistry, Multidisciplinary

An Intrinsically Non-flammable Electrolyte for High-Performance Potassium Batteries

Sailin Liu et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2020)

Article Multidisciplinary Sciences

A high-performance potassium metal battery using safe ionic liquid electrolyte

Hao Sun et al.

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2020)

Article Chemistry, Physical

Initial investigation and evaluation of potassium metal as an anode for rechargeable potassium batteries

Jimin Park et al.

JOURNAL OF MATERIALS CHEMISTRY A (2020)

Article Chemistry, Multidisciplinary

An Intrinsic Flame-Retardant Organic Electrolyte for Safe Lithium-Sulfur Batteries

Huijun Yang et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2019)

Article Multidisciplinary Sciences

Designable ultra-smooth ultra-thin solid-electrolyte interphases of three alkali metal anodes

Yu Gu et al.

NATURE COMMUNICATIONS (2018)

Article Chemistry, Physical

Solvation and Dynamics of Sodium and Potassium in Ethylene Carbonate from ab Initio Molecular Dynamics Simulations

Tuan Anh Pham et al.

JOURNAL OF PHYSICAL CHEMISTRY C (2017)

Article Chemistry, Multidisciplinary

Reversible Dendrite-Free Potassium Plating and Stripping Electrochemistry for Potassium Secondary Batteries

Neng Xiao et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2017)

Article Chemistry, Multidisciplinary

Liquid K-Na Alloy Anode Enables Dendrite-Free Potassium Batteries

Leigang Xue et al.

ADVANCED MATERIALS (2016)

Article Electrochemistry

On the Comparative Stability of Li and Na Metal Anode Interfaces in Conventional Alkyl Carbonate Electrolytes

D. I. Iermakova et al.

JOURNAL OF THE ELECTROCHEMICAL SOCIETY (2015)

Article Chemistry, Physical

Li+ solvation in glyme-Li salt solvate ionic liquids

Kazuhide Ueno et al.

PHYSICAL CHEMISTRY CHEMICAL PHYSICS (2015)

Article Chemistry, Physical

Understanding Li+-Solvent Interaction in Nonaqueous Carbonate Electrolytes with 17O NMR

Xavier Bogle et al.

JOURNAL OF PHYSICAL CHEMISTRY LETTERS (2013)

Article Chemistry, Multidisciplinary

Semiempirical GGA-type density functional constructed with a long-range dispersion correction

Stefan Grimme

JOURNAL OF COMPUTATIONAL CHEMISTRY (2006)