Fluorinated graphene has a promising application prospect in lithium primary batteries (LPBs) and sodium primary batteries (SPBs). Herein, five fluorinated graphene materials with different fluorine contents (FG-x) are prepared by a large-scale gas fluorination process is found that the structural characteristics of FG-x strongly depend on the fluorination
In the development of new electrochemical concepts for the fabrication of high-energy-density batteries, fluoride-ion batteries (FIBs) have emerged as one of the valid
This review explores the design and utilization of fluorine-containing materials in advanced batteries, focusing on the significance of controlling their chemical structure and understanding their impact on battery
The development of new energy vehicles is an important way to solve the serious problems of energy and environmental systems. Lithium-ion batteries (LIBs) have become the most promising power units of new energy vehicles due to their high energy density, long service life, and environmental friendliness (Zhu et al., 2022, Tang et al., 2021). According to
As the demand for high-energy-density batteries becomes more pressing, the design and understanding of new electrolytes have become imperative 1 for trending battery chemistries such as Si–C composite anodes, 5 V cathodes, Li-rich cathodes and Co-free cathodes. Electrolytes are usually composed of Li salts, solvents and additives.
The increasing demand for high-performance rechargeable batteries, particularly in energy storage applications such as electric vehicles, has driven the development of advanced battery technologies with improved energy density, safety and cycling stability. Fluorine has emerged as a crucial element in achieving these goals, owing to its hydrophobicity, robust
Ketjen black fluoride (KBF-2) material, a novel carbon fluoride cathode nanomaterial, is fabricated through a pregrinding treatment followed by a fluorination process for lithium primary batteries. The ketjen black material as the carbon precursors provides a 3D spherical structure with a high-specific surface area. In addition, the pregrinding
Endowed by high energy density and high conversion efficiency between chemical and electric energy, rechargeable batteries are indispensable in a variety of different energy-level applications, ranging from portable devices (W-level) to electric vehicles (kW-level) and large-scale energy storage systems (MW-level). However, many lingering scientific and
Fluorination of ether solvents is an effective strategy to improve the electrochemical stability of non-aqueous electrolyte solutions in lithium metal batteries. However, excessive fluorination
High nickel layered oxides provide high energy densities as cathodes for next-generation batteries. However, critical issues such as capacity fading and voltage decay,
In this study, we propose a design approach in which the simultaneous in vitro interphase evolution of robust LiF inorganic compounds and lithium alloy (Li-M) enhances chemical stability with carbonate-based organic electrolytes through
Semantic Scholar extracted view of "Electrochemical fluorination (Simons process) – A powerful tool for the preparation of new conducting salts, ionic liquids and strong Brønsted acids" by N. Ignat''ev et al.
To pursue high-energy batteries, it is highly desirable to explore high-performance fluorinated electrode materials via electrode design. To design and construct high-performance fluorinated electrode materials, three major design principles should be considered, namely excellent redox reactions, fast ion/electron transport, and robust
In the development of new electrochemical concepts for the fabrication of high-energy-density batteries, fluoride-ion batteries (FIBs) have emerged as one of the valid candidates for the next generation electrochemical energy storage technologies, showing the potential to match or even surpass the current lithium-ion batteries (LIBs) in terms
The combination of advanced synthesis and characterization approaches with the assistance of machine learning will enable the design of new fluorinated solvents for advanced lithium-based
A surface fluorination process to form a homogeneous and dense LiF coating on reactive anode materials, with in situ generated fluorine gas, by using a fluoropolymer, CYTOP, as the precursor, bringing huge benefit to
Recycling is a necessary strategy to manage spent LIBs, which focuses mainly on recovering valuable metals, such as Co, Ni, Li, and Al from the cathode materials. 12-14 Due to its low value and difficulty of recycling, the anode materials of graphite are only disposed of as waste in industrial practice, resulting in a substantial waste of resources. 15, 16 Furthermore,
The increasing interest in new fluorination strategies for carbon nanomaterials (CNMs) is triggered by their wide range of potential applications in various fields, including biology [1,2
Ketjen black fluoride (KBF-2) material, a novel carbon fluoride cathode nanomaterial, is fabricated through a pregrinding treatment followed by a fluorination process
Electrolyte engineering with fluoroethers as solvents offers promising potential for high-performance lithium metal batteries. Despite recent progresses achieved in designing and synthesizing novel fluoroether solvents, a systematic understanding of how fluorination patterns impact electrolyte performance is still lacking.
High nickel layered oxides provide high energy densities as cathodes for next-generation batteries. However, critical issues such as capacity fading and voltage decay, which derive from labile surface reactivity and phase transition, especially under high-rate high-voltage conditions, prevent their commercialization. Here we propose a fluorination strategy to
The combination of advanced synthesis and characterization approaches with the assistance of machine learning will enable the design of new fluorinated solvents for advanced lithium-based batteries. This article is part of the themed collection: ChemSocRev – Highlights from 2023
Electrolyte engineering with fluoroethers as solvents offers promising potential for high-performance lithium metal batteries. Despite recent progresses achieved in designing and
This review explores the design and utilization of fluorine-containing materials in advanced batteries, focusing on the significance of controlling their chemical structure and understanding their impact on battery performance. A key aspect is the role of fluorinated materials in facilitating the formation of a thin, protective film
Incorporating fluorine into battery components can improve the energy density, safety and cycling stability of rechargeable batteries. This Review explores the broad use of
Incorporating fluorine into battery components can improve the energy density, safety and cycling stability of rechargeable batteries. This Review explores the broad use of fluorinated...
In this study, we propose a design approach in which the simultaneous in vitro interphase evolution of robust LiF inorganic compounds and lithium alloy (Li-M) enhances chemical stability with carbonate-based organic electrolytes through pretreatment of metal fluoride material (M x F y) onto Li metal electrodes at a relatively low annealing tempe...
Herein, a rational design of new electrolytes is demonstrated, which can significantly improve the low temperature performance below −20 °C. This electrolyte is achieved by tailoring the chemical structure, i.e., altering the fluorination position and the degree of fluorination, of ethyl acetate solvent.
Herein, a rational design of new electrolytes is demonstrated, which can significantly improve the low temperature performance below −20 °C. This electrolyte is achieved by tailoring the chemical structure, i.e., altering the
Fluorination of the electrolyte enhances battery thermal stability through the introduction of highly stable carbon–fluorine and metal–fluorine bonds, which reduce the reactivity of the electrolyte with electrode materials at elevated temperatures and increase thermal conductivity 28.
Additionally, the passivation layer formed by fluorinated additives can substantially improve the cycle life of batteries, as shown by the ultra-long cycling life of 14,000 h in Li||Li symmetric cells with the addition of fluorinated ether HFE additive 94.
First, fluorine materials in batteries improve the stability and quality of electrode and electrolyte interfaces by forming rigid and stable fluoride-rich (such as LiF) protection layers on the surface of anodes (that is, an SEI) and cathodes (that is, a cathode SEI or cathode–electrolyte interphase).
In particular, the Li 2 MF 6 (M = Zr, Ti, Si, Ge) materials possess the best combination of ionic conductivity and electrochemical and chemical stability, which surpasses the performance of common binary fluoride and oxide coatings. In this review we have presented an overview of fluorinated electrode materials for high-energy batteries.
Such an extensive restriction of fluorinated compounds may substantially hinder the innovation of next-generation advanced battery systems. As the battery industry is growing fast, it is estimated by the association RECHARGE that PFAS present in batteries across Europe could reach 15,000–20,000 tonnes (mainly PVDF) by 2030 (ref. 133).
These attributes provide fluorinated battery components with high thermal and oxidative stability, chemical inertness and non-flammability.
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