Phosphorus-Based Flame-Retardant Electrolytes for Lithium Batteries

IF 24.4 1区 材料科学 Q1 CHEMISTRY, PHYSICAL
Jin-Hee Kim, Jae-Hwan Hyun, Sihyun Kim, Woo Hyun Park, Seung-Ho Yu
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Abstract

The increasing demand for high-performance energy storage systems has driven a significant focus on developing electrolytes for lithium-ion batteries (LIBs), known for their high energy density and cycle stability. Organic electrolytes play a crucial role in enhancing battery performance due to their high ionic conductivity and wide electrochemical stability. However, their flammability and volatility pose serious safety risks, including thermal runaway and fire hazards. To address these issues, research is advancing on flame-retardant electrolytes, particularly fluorine (F)-based and phosphorus (P)-based compounds. F-based flame-retardants work by interrupting flame propagation through radical scavenging mechanisms but require high concentrations to be effective, leading to increased costs and adverse effects on electrolyte properties. In contrast, P-based flame-retardants offer distinct advantages, including lower toxicity, reduced smoke generation, and high thermal and chemical stability. These properties allow P-based additives to be effective at lower concentrations, minimizing their impact on cost and electrolyte performance. This review highlights the diverse structures of P-based flame-retardant additives, exploring their characteristics, mechanisms, and impacts on battery performance, while also proposing future directions for next-generation materials to improve the safety and stability of LIBs, paving the way for fire-resistant, high-performance energy storage solutions.

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来源期刊
Advanced Energy Materials
Advanced Energy Materials CHEMISTRY, PHYSICAL-ENERGY & FUELS
CiteScore
41.90
自引率
4.00%
发文量
889
审稿时长
1.4 months
期刊介绍: Established in 2011, Advanced Energy Materials is an international, interdisciplinary, English-language journal that focuses on materials used in energy harvesting, conversion, and storage. It is regarded as a top-quality journal alongside Advanced Materials, Advanced Functional Materials, and Small. With a 2022 Impact Factor of 27.8, Advanced Energy Materials is considered a prime source for the best energy-related research. The journal covers a wide range of topics in energy-related research, including organic and inorganic photovoltaics, batteries and supercapacitors, fuel cells, hydrogen generation and storage, thermoelectrics, water splitting and photocatalysis, solar fuels and thermosolar power, magnetocalorics, and piezoelectronics. The readership of Advanced Energy Materials includes materials scientists, chemists, physicists, and engineers in both academia and industry. The journal is indexed in various databases and collections, such as Advanced Technologies & Aerospace Database, FIZ Karlsruhe, INSPEC (IET), Science Citation Index Expanded, Technology Collection, and Web of Science, among others.
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