Constructing Safe and Durable High‐Voltage P2 Layered Cathodes for Sodium Ion Batteries Enabled by Molecular Layer Deposition of Alucone
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DOI: 10.1002/adfm.201910251
Abstract: Sodium ion batteries are a promising next-generation energy storage device for large-scale applications. However, the high voltage P2–O2 phase transition (>4.25 V vs Na/Na+) and metal dissolution of P2 layered cathodes into the electrolyte result… read more here.
Keywords: sodium ion; high voltage; alucone; ion batteries ... See more keywords
An Ion‐Dipole‐Reinforced Polyether Electrolyte with Ion‐Solvation Cages Enabling High–Voltage‐Tolerant and Ion‐Conductive Solid‐State Lithium Metal Batteries
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DOI: 10.1002/adfm.202107764
Abstract: Solid‐state electrolytes (SSEs) with sufficient ionic conduction, wide voltage window, flexible‐rigid interface, and ease of processibility are determinative to the development of energy‐dense solid‐state lithium metal batteries. Due to the low density and interfacial compatibility,… read more here.
Keywords: solid state; state lithium; voltage; high voltage ... See more keywords
Antimony Doping Enabled Radially Aligned Microstructure in LiNi0.91Co0.06Al0.03O2 Cathode for High‐Voltage and Low‐Temperature Lithium Battery
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DOI: 10.1002/adfm.202312284
Abstract: Ni‐rich layered oxide cathode material with Ni contents greater than 90% is considered as a highly promising candidate for lithium‐ion batteries (LIBs) owing to its remarkable specific capacity and cost‐efficiency. However, severe capacity degradation caused… read more here.
Keywords: high voltage; microstructure; low temperature; cathode ... See more keywords
A Low‐Cost Moderate‐Concentration Hybrid Electrolyte of Introducing CaCl2 and Ethylene Glycerol Enables Low‐Temperature and High‐Voltage Micro‐Supercapacitors
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DOI: 10.1002/adfm.202313395
Abstract: High‐concentration electrolyte effectively improves the energy density and anti‐freezing property of aqueous micro‐supercapacitors (MSCs), endowing them the opportunity serving as power sources for miniaturized electronics. However, the excessive usage of salt significantly increases the cost… read more here.
Keywords: moderate concentration; concentration hybrid; hybrid electrolyte; high voltage ... See more keywords
Long‐Life High‐Voltage Sodium‐Ion Batteries Enabled by Electrolytes with Cooperative Na+‐Solvation
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DOI: 10.1002/adfm.202403138
Abstract: Stabilizing the electrode interphases is urgently required to enhance the lifetime of high‐voltage sodium‐ion batteries (SIBs). However, the continuous anode solid–electrolyte interphase (SEI) growth associated with electron leakage and the fragile cathode–electrolyte interphase (CEI) lead… read more here.
Keywords: solvation; sodium ion; voltage; high voltage ... See more keywords
High Voltage, Long Cycling Organic Cathodes Rendered by In Situ Electrochemical Oxidation Polymerization
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DOI: 10.1002/adfm.202411127
Abstract: Organic electrode materials have attracted considerable attention for electrochemical energy storage due to their abundance of elements, tunable molecular structure, and sustainability. However, the application of organic batteries is plagued by their high solubility and… read more here.
Keywords: long cycling; high potential; voltage long; polymerization ... See more keywords
Effective Water Confinement and Dual Electrolyte–Electrode Interfaces by Zwitterionic Oligomer for High‐Voltage Aqueous Lithium‐Ion Batteries
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DOI: 10.1002/adfm.202416566
Abstract: Aqueous lithium‐ion batteries (ALIBs) have attracted significant interest due to their inherent advantage on safety. However, water itself has a narrow electrochemical stability window (ESW), limiting the energy density of ALIBs. Here, a low‐molecular‐weight zwitterionic… read more here.
Keywords: water; lithium ion; high voltage; aqueous lithium ... See more keywords
A New Strategy for Sulfone‐Containing Electrolytes Design Enabling Long Cycling High‐Voltage Lithium‐Ion Batteries
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DOI: 10.1002/adfm.202421687
Abstract: High‐energy‐density lithium‐ion batteries (LIBs) face critical challenges due to the lack of electrolyte solvents that can achieve dual‐interfaces stability. Although ethyl mesylate (EM)‐based sulfone electrolytes are compatible with high‐voltage cathodes, their high viscosity and the… read more here.
Keywords: lithium; sulfone; lithium ion; high voltage ... See more keywords
Trace NaBF4 Modulated Ultralow‐Concentration Ether Electrolyte for Durable High‐Voltage Sodium‐Ion Batteries
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DOI: 10.1002/adfm.202422491
Abstract: Ultralow‐concentration ether electrolytes hold great promise for cost‐effective sodium‐ion batteries (SIBs), while their inferior cycle stability under high voltages remains an awkward challenge. Herein, ultralow‐concentration diglyme (G2)‐based electrolytes with single sodium salt are found to… read more here.
Keywords: concentration ether; trace nabf4; sodium; high voltage ... See more keywords
Heterogeneous Doping via Methyl‐Encapsulated Fumed Silica Enabling Weak Solvated and Self‐Purified Electrolyte in Long‐Term High‐Voltage Lithium Batteries
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DOI: 10.1002/adfm.202423742
Abstract: Crafting a sustainable non‐aqueous electrolyte is paramount in the pursuit of high‐voltage lithium batteries that exhibit exceptional performance. Traditional carbonate‐based electrolytes encounter hurdles in maintaining electrochemical stability due to unstable interphases, as well as continuous… read more here.
Keywords: lithium batteries; high voltage; voltage lithium; electrolyte ... See more keywords
Bifunctional Oxide Additive Enabling High‐Voltage Aqueous Zn/LiCoO2 Hybrid Batteries
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DOI: 10.1002/adfm.202424954
Abstract: The development of aqueous Zn/LiCoO2 hybrid batteries faces challenges such as poor reversibility, rapid capacity degradation, and severe side reactions in base electrolytes. Herein, this study proposes Al2O3 nanoparticles as a bifunctional additive in the… read more here.
Keywords: aqueous licoo2; high voltage; voltage aqueous; hybrid batteries ... See more keywords