In situ formed uniform and elastic SEI for high-performance batteries

Article Multidisciplinary Sciences

Superstable potassium metal batteries with a controllable internal electric field

Hongbo Ding et al.

Summary: By using bionic virus-like-carbon microspheres as the anode host for potassium metal batteries, dendrite formation can be suppressed and volume change can be accommodated, resulting in stable cycle life and performance.

FUNDAMENTAL RESEARCH (2023)

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Article Chemistry, Multidisciplinary

Multifunctional Separator Allows Stable Cycling of Potassium Metal Anodes and of Potassium Metal Batteries (Adv. Mater. 7/2022)

Pengcheng Liu et al.

ADVANCED MATERIALS (2022)

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Article Multidisciplinary Sciences

Self-assembled monolayers direct a LiF-rich interphase toward long-life lithium metal batteries

Yujing Liu et al.

Summary: In this study, self-assembled monolayers (SAMs) were utilized to control electrolyte degradation and solid-electrolyte interphase (SEI) formation in lithium metal batteries (LMBs), resulting in improved cycling performance and lifespan.

SCIENCE (2022)

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Article Multidisciplinary Sciences

Capturing the swelling of solid-electrolyte interphase in lithium metal batteries

Zewen Zhang et al.

Summary: Characterizing liquid-solid interfaces remains challenging due to the limitations of existing tools. This study adopts a thin film vitrification method to preserve and study the structure and chemistry of key interfaces in batteries. The research reveals substantial swelling of the solid-electrolyte interphase (SEI) on lithium metal anodes in different electrolytes, with the swelling behavior correlated to battery performance.

SCIENCE (2022)

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Article Chemistry, Multidisciplinary

Regulating Interfacial Desolvation and Deposition Kinetics Enables Durable Zn Anodes with Ultrahigh Utilization of 80%

Hongrun Jin et al.

Summary: This study introduces an aluminum-doped zinc oxide (AZO) interphase to improve the cycling stability and utilization of zinc anodes in aqueous zinc ion batteries (ZIBs), showing promising durability and stability in the AZO-coated zinc (AZO@Zn) anode. The V2O5/AZO@Zn full cell exhibits high capacity retention at high rates.

SMALL (2022)

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Article Energy & Fuels

Rational solvent molecule tuning for high-performance lithium metal battery electrolytes

Zhiao Yu et al.

Summary: The authors designed and synthesized a family of fluorinated-1,2-diethoxyethanes as electrolyte solvents, addressing the issue of cycling capability in lithium metal batteries and uncovering the relationship between electrolyte structure and performance.

NATURE ENERGY (2022)

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Article Green & Sustainable Science & Technology

Surface-substituted Prussian blue analogue cathode for sustainable potassium-ion batteries

Junmin Ge et al.

Summary: Aqueous potassium-ion batteries have emerged as a more sustainable technology to complement lithium-ion counterparts. Ge et al. engineer the surface of a potassium manganese hexacyanoferrate cathode material, achieving unprecedented electrochemical performance in full K-ion cells.

NATURE SUSTAINABILITY (2022)

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Article Mining & Mineral Processing

AFM characterization of surface mechanical and electrical properties of some common rocks

Xianghui Tian et al.

Summary: This study characterizes the micro-surface morphology, modulus, adhesion, and potential of granite, shale, and limestone using an atomic force microscope. The results show that the micro-surface characteristics of the rocks vary, and these characteristics have important effects on gas adsorption and fracture formation.

INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY (2022)

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Article Chemistry, Multidisciplinary

Highly Potassiophilic Graphdiyne Skeletons Decorated with Cu Quantum Dots Enable Dendrite-Free Potassium-Metal Anodes

Yuyang Yi et al.

Summary: In this study, a nitrogen-doped carbon@graphdiyne (NC@GDY)-modified Al current collector is proposed to improve the performance of potassium anodes. By applying a thin layer of nanosheets and quantum dots on the surface of the Al, dendrite growth is suppressed and the lifespan of the battery is prolonged.

ADVANCED MATERIALS (2022)

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Article Nanoscience & Nanotechnology

A robust all-organic protective layer towards ultrahigh-rate and large-capacity Li metal anodes

Shimei Li et al.

Summary: A robust all-organic interfacial protective layer has been developed to achieve a highly efficient and dendrite-free lithium metal anode. This protective layer enables uniform Li+ diffusion and high Li+ transference number, leading to ultralong-term stable cycling and unprecedented reversible lithium plating/stripping, as well as excellent cell stability.

NATURE NANOTECHNOLOGY (2022)

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Article Energy & Fuels

Interfacial engineering to achieve an energy density of over 200 Wh kg-1 in sodium batteries

Yuqi Li et al.

Summary: This study presents an initial anode-free sodium battery with an energy density exceeding 200 Wh kg(-1), showcasing the potential for sodium batteries to rival lithium-ion battery performance. Through innovative design and interface chemistry, the cycling lifetime of the sodium battery reaches an impressive 260 cycles without applying additional pressure, providing insights for further development of high-performance sodium batteries.

NATURE ENERGY (2022)

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Article Energy & Fuels

Additive engineering for robust interphases to stabilize high-Ni layered structures at ultra-high voltage of 4.8 V

Sha Tan et al.

Summary: Stable cycling at an ultra-high voltage of 4.8 V can be achieved by adding an appropriate amount of lithium difluorophosphate in a common commercial electrolyte. The robust interphase formed on the cathode plays a key role in suppressing transition metal dissolution and facilitating uniform lithium distribution.

NATURE ENERGY (2022)

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Article Multidisciplinary Sciences

Puffing ultrathin oxides with nonlayered structures

Kaisi Liu et al.

Summary: This article introduces a facile strategy for synthesizing ultrathin oxide nanosheets using a self-formed sacrificial template of carbon layers. By taking advantage of the Maillard reaction and violent redox reaction between glucose and ammonium nitrate, 36 large-area ultrathin oxides with various compositions have been successfully fabricated, including perovskite oxides which exhibit excellent electrocatalytic activity for oxygen evolution reaction.

SCIENCE ADVANCES (2022)

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Article Chemistry, Multidisciplinary

Integrating SEI into Layered Conductive Polymer Coatings for Ultrastable Silicon Anodes

Siyuan Pan et al.

Summary: A layered conductive polyaniline coating is applied to silicon nanoparticles to achieve high areal capacity and long lifespan. The coating stores electrolyte and forms a hybrid SEI skin with uniform distribution, enhancing flexibility and maintaining homogeneous ion transport. The silicon anode shows remarkable cycling stability and good rate performance.

ADVANCED MATERIALS (2022)

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Article Energy & Fuels

Low-solvation electrolytes for high-voltage sodium-ion batteries

Yan Jin et al.

Summary: The authors develop an electrolyte that effectively suppresses the dissolution of the solid-electrolyte interphase in sodium-ion batteries, enabling long-cycle and high-voltage performance. This study provides a guiding principle in electrolyte design for sodium-ion batteries.

NATURE ENERGY (2022)

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Article Multidisciplinary Sciences

Step-by-step desolvation enables high-rate and ultra-stable sodium storage in hard carbon anodes

Ziyang Lu et al.

Summary: The desolvation process plays a crucial role in the diffusion kinetics of sodium ions and the formation of a solid electrolyte interface (SEI). Researchers have found that a 3A zeolite molecular sieve film on the hard carbon anode can effectively reduce the activation energy of the direct desolvation process, leading to improved performance.

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2022)

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Article Multidisciplinary Sciences

Extending the low-temperature operation of sodium metal batteries combining linear and cyclic ether-based electrolyte solutions

Chuanlong Wang et al.

Summary: This study proposes a specific electrolyte formulation for low-temperature operation of non-aqueous sodium-based batteries, which exhibits thermal stability and enables a stable electrode|electrolyte interface at extremely low temperatures. Through a series of experiments and calculations, the mechanisms behind the efficient electrochemical performance at low temperatures are revealed.

NATURE COMMUNICATIONS (2022)

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Article Chemistry, Physical

Enabling two-electron redox chemistry of P-type organic cathode for high-capacity aluminium-ion batteries

Yueqi Kong et al.

Summary: This study demonstrates a strategy of compromised electron-donating substitution to achieve two-electron transfer in 1-aminopyrene, resulting in high specific capacity and excellent performances in aluminium-ion batteries.

NANO ENERGY (2022)

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Article Chemistry, Multidisciplinary

Design Principles of Sodium/Potassium Protection Layer for High-Power High-Energy Sodium/Potassium-Metal Batteries in Carbonate Electrolytes: a Case Study of Na2Te/K2Te

Hai Yang et al.

Summary: The study demonstrates that Na2Te/K2Te can improve Na+/K+ transport and suppress dendrite formation, offering a promising way to stabilize sodium (potassium)-metal anodes.

ADVANCED MATERIALS (2021)

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Article Chemistry, Multidisciplinary

Manipulating the Solvation Structure of Nonflammable Electrolyte and Interface to Enable Unprecedented Stability of Graphite Anodes beyond 2 Years for Safe Potassium-Ion Batteries

Sailin Liu et al.

Summary: This study presents a nonflammable, moderate-concentration electrolyte highly compatible with graphite anodes that exhibits exceptional cycling stability. The stability of the electrolyte is attributed to the nearly 100% solvation of TMP molecules with K+ cations and the formation of a F-rich solid electrolyte interphase. The findings highlight the importance of electrolyte-interface compatibility and offer new opportunities for designing safe and practical PIBs.

ADVANCED MATERIALS (2021)

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Article Chemistry, Multidisciplinary

Electrolytes and Interphases in Potassium Ion Batteries

Mengfan Zhou et al.

Summary: Potassium ion batteries are considered a promising candidate for future energy storage devices due to their cost-effectiveness, high-voltage, and high-power operation. In addition to electrode materials, electrolytes also play a crucial role in determining cell performance. This Progress Report summarizes the research progress of electrolytes in PIBs and provides comprehensive guidance on the design of electrolyte systems for high performance PIBs.

ADVANCED MATERIALS (2021)

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Article Chemistry, Physical

Red Phosphorous-Derived Protective Layers with High Ionic Conductivity and Mechanical Strength on Dendrite-Free Sodium and Potassium Metal Anodes

Pengcheng Shi et al.

Summary: Introduction of an artificial Na3P layer on the surface of sodium metal anodes can achieve high-performance Na anodes by preventing dendrite growth and improving electrochemical performance. This method can also be applied to potassium metal anodes and extended to solid-state alkali metal batteries with high power density and energy density.

ADVANCED ENERGY MATERIALS (2021)

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Article Chemistry, Multidisciplinary

Thermal Reductive Perforation of Graphene Cathode for High-Performance Aluminum-Ion Batteries

Yueqi Kong et al.

Summary: The article introduces a thermal reductive perforation (TRP) strategy to convert three-layer graphene nanosheets into surface-perforated graphene materials, which exhibit good reversible capacity and high energy density in aluminum-ion batteries.

ADVANCED FUNCTIONAL MATERIALS (2021)

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Article Multidisciplinary Sciences

Tribo-electrochemistry induced artificial solid electrolyte interface by self-catalysis

Chichu Qin et al.

Summary: Potassium metal is a promising alkali metal anode but dendrite formation limits its application. The construction of a continuous and compact protective layer on potassium metal anode through a self-catalysis tribo-electrochemistry reaction in seconds significantly improves K+ diffusion kinetics and suppresses K dendrite formation. This results in potassium symmetric cells exhibiting stable cycles lasting over 1000 hours, nearly 500 times longer than pristine K.

NATURE COMMUNICATIONS (2021)

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Article Nanoscience & Nanotechnology

Highly Potassiophilic Carbon Nanofiber Paper Derived from Bacterial Cellulose Enables Ultra-Stable Dendrite-Free Potassium Metal Anodes

Mengfan Zhou et al.

Summary: A highly potassiophilic carbon nanofiber paper was successfully fabricated through a facile, scalable, and environmentally-friendly biosynthesis method, serving as an excellent host for K metal anodes. The uniform K nucleation and stable plating/stripping performance of this carbon nanofiber paper led to a stable cycling of 1400 h and a low overpotential of 45 mV, outperforming other carbon hosts without complicated structure engineering. This research provides a promising approach for realizing dendrite-free K metal anodes and high-performance potassium-ion batteries.

ACS APPLIED MATERIALS & INTERFACES (2021)

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Article Chemistry, Multidisciplinary

Regulating Solvent Molecule Coordination with KPF6 for Superstable Graphite Potassium Anodes

Mingyuan Gu et al.

Summary: The cycling stability of graphite anodes can be significantly improved by regulating the coordination of solvent molecules with KPF6 via a high-temperature precycling step. Additionally, the formation of a stable and uniform organic-rich passivation layer on graphite anodes after high-temperature precycling contributes to the enhanced performance of potassium ion batteries. Molecular dynamics simulations were conducted to study the solvation chemistry of the electrolytes, providing insights into the mechanism behind the improved performance.

ACS NANO (2021)

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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)

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Review Chemistry, Physical

Prospects of Electrode Materials and Electrolytes for Practical Potassium-Based Batteries

Ling Fan et al.

Summary: This review focuses on high-performance electrode materials and electrolytes for potassium-ion batteries (PIBs), evaluating their potential and challenges for market penetration. Discussions include the current status of PIBs in terms of safety, energy density, power density, cyclability, and sustainability, as well as future research directions for electrode materials, electrolytes, and electrode-electrolyte interfaces in order to commercialize potassium-based full batteries in the near future.

SMALL METHODS (2021)

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Article Chemistry, Physical

Metal-Organic Framework@Polyacrylonitrile-Derived Potassiophilic Nanoporous Carbon Nanofiber Paper Enables Stable Potassium Metal Anodes

Liang Wang et al.

Summary: A Co nanoparticle-embedded nitrogen-doped nanoporous carbon nanofiber paper is prepared as a host material for potassium metal anodes, demonstrating excellent electrochemical performance with high Coulombic efficiency and long lifespan. Furthermore, when paired with organic cathodes, enhanced electrochemical performance with good cycling stability and rate capability is achieved.

ACS APPLIED ENERGY MATERIALS (2021)

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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)

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Article Chemistry, Physical

Ni-rich LiNi0.8Co0.1Mn0.1O2 oxide functionalized by allyl phenyl sulfone as high-performance cathode material for lithium-ion batteries

Jungyoung Ahn et al.

Summary: Introducing allyl phenyl sulfone (APS) functional electrolyte additive can effectively enhance the cycling performance of nickel-rich layered lithium metal oxides at high temperature, leading to improved overall electrochemical performance of a cell.

JOURNAL OF ALLOYS AND COMPOUNDS (2021)

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Article Chemistry, Physical

Unraveling the mechanical origin of stable solid electrolyte interphase

Yao Gao et al.

Summary: The capability of a solid electrolyte interphase (SEI) in accommodating deformation is critical to electrode integrity. A new indicator, maximum elastic deformation energy (U), is proposed to predict SEI stability and screen suitable electrolytes for different anodes. The study demonstrates a feasible atomic force microscopy-based nanoindentation test to accurately determine the mechanical parameters of SEI.

JOULE (2021)

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Article Chemistry, Multidisciplinary