Towards Room Temperature Rechargeable Fluoride-Ion Batteries

走向室温可充电氟离子电池

• 批准号: EP/V014994/1
• 负责人: Anji Reddy Munnangi
• 金额: $ 37.92万
• 依托单位: Swansea University
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2021
• 资助国家: 英国
• 起止时间: 2021 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FV014994%2F1
• 关键词: Towards; Room; Temperature; Rechargeable; Fluoride

Since the commercial introduction of lithium-ion batteries (LIBs) by Sony in the early 1990s, LIBs become preferred power sources in portable electronics due to their high energy density. LIBs are being slowly introduced in the electric vehicles (EVs) and for grid storage applications. These high energy density LIBs use cobalt or nickel-rich layered cathode materials, which pose several issues. To meet the growing demands, high energy, sustainable, and safe battery technologies that are beyond LIBs are urgently required. Fluoride-ion batteries (FIBs) offer a potential next-generation electrochemical energy storage device that has a higher energy density and safety when compared with state-of-the-art LIBs. Upon realization of its full potential, FIBs would transform the automotive sector and other energy storage sectors beyond LIBs. Currently, FIBs are operated at high temperatures limited by the use of low fluoride-ion conducting solid electrolytes. The development of suitable liquid electrolytes has the potential to bring out the hidden potential of rechargeable fluoride-ion batteries.Controlling the reactivity of fluoride in solution is vital to develop non-aqueous liquid electrolytes. Earlier electron-deficient boron complexes were used to bind the fluoride ions and control its reactivity. However, boron-based molecules bind fluoride ions too strongly and will not release the fluoride ions to the electrodes in electrochemical cells; therefore, these complexes are not suitable for electrolytic applications. A series of organic molecules have identified that control the reactivity of the fluoride ions in solution, and at the same time, they would release the fluoride ions to the electrode in electrochemical cells (predicted based on the binding energy). Such molecules will enable the development of advanced liquid electrolytes for FIBs. In an alternative approach, the PI has also proposed to develop new 'quasi non-aqueous' fluoride transporting liquid electrolytes. These two types of liquid electrolytes will be used to build and investigate FIBs with various metal/metal fluoride combinations.The main objectives of the project are to develop suitable fluoride-ion-transporting non-aqueous and quasi-non-aqueous liquid electrolytes and to ensure that fluoride ion batteries perform under room temperature with high energy and safety. Potential applications and benefit: The primary outcome of the project will enable the rapid development of room temperature FIBs and will pave the way for the realisation of high energy rechargeable FIBs with applications in portable electronics, grid, and EVs.

自20世纪90年代初索尼公司将锂离子电池（lib）商业化以来，由于其高能量密度，锂离子电池成为便携式电子设备的首选电源。锂离子电池正慢慢被引入电动汽车（ev）和电网存储应用。这些高能量密度的锂离子电池使用钴或镍丰富的层状阴极材料，这带来了几个问题。为了满足日益增长的需求，迫切需要超越锂电池的高能量、可持续和安全电池技术。氟离子电池（FIBs）提供了一种潜在的下一代电化学储能装置，与最先进的锂离子电池相比，它具有更高的能量密度和安全性。一旦充分发挥其潜力，fib将改变汽车行业和其他储能行业，使其超越lib。目前，受使用低氟离子导电固体电解质的限制，fib在高温下运行。开发合适的液体电解质，有可能将可充电氟离子电池的潜在潜力挖掘出来。控制溶液中氟化物的反应性是开发非水电解质的关键。早期的缺电子硼配合物被用来结合氟离子并控制其反应性。然而，硼基分子结合氟离子的强度太大，不会将氟离子释放到电化学电池的电极上；因此，这些配合物不适合电解应用。已经发现了一系列有机分子，它们可以控制溶液中氟离子的反应性，同时将氟离子释放到电化学电池中的电极上（根据结合能预测）。这些分子将使FIBs先进液体电解质的开发成为可能。在另一种方法中，PI还建议开发新的“准非水”氟化物运输液体电解质。这两种类型的液体电解质将用于建立和研究具有各种金属/金属氟化物组合的fib。该项目的主要目标是研制合适的氟离子输送非水和准非水液体电解质，并确保氟离子电池在室温下具有高能量和安全性。潜在的应用和好处：该项目的主要成果将使室温fib的快速发展，并将为实现高能可充电fib在便携式电子产品、电网和电动汽车中的应用铺平道路。

项目成果

Reinvestigation of Na 5 GdSi 4 O 12 : A Potentially Better Solid Electrolyte than Sodium ß Alumina for Solid-State Sodium Batteries

重新研究 Na 5 GdSi 4 O 12：一种可能比钠 - 氧化铝更好的固体电解质，用于固态钠电池

• DOI: 10.1021/acsami.3c16153
• 发表时间: 2024
• 期刊: ACS Applied Materials & Interfaces
• 影响因子: 9.5
• 作者: Michalak A

Micron-sized single-crystal cathodes for sodium-ion batteries.

• DOI: 10.1016/j.isci.2022.104205
• 发表时间: 2022-05-20
• 期刊: ISCIENCE
• 影响因子: 5.8
• 作者: Pamidi, Venkat;Trivedi, Shivam;Behara, Santosh;Fichtner, Maximilian;Reddy, M. Anji
• 通讯作者: Reddy, M. Anji

Micron-sized single-crystal cathodes for sodium-ion batteries

用于钠离子电池的微米级单晶阴极

• DOI: 10.5445/ir/1000149392
• 发表时间: 2022
• 作者: Pamidi V

Ionically conducting inorganic binders: a paradigm shift in electrochemical energy storage

离子导电无机粘合剂：电化学储能的范式转变

• DOI: 10.1039/d2gc01389d
• 发表时间: 2022
• 期刊: Green Chemistry
• 影响因子: 9.8
• 作者: Trivedi S