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.

自从索尼在1990年代初通过商业引入锂离子电池（LIB），由于其高能密度，LIB成为便携式电子产品中的首选电源。在电动汽车（EV）和网格存储应用中缓慢引入LIB。这些高能量密度的LIB使用钴或富含镍的分层阴极材料，这构成了几个问题。为了满足不断增长的需求，高能，可持续和安全的电池技术，这些技术迫切需要超越自由的。氟化离子电池（FIB）提供了潜在的下一代电化学储能装置，与最先进的LIB相比，能量密度和安全性更高。一旦意识到其全部潜力，FIB将将汽车部门和其他储能领域转变为Libs之外。目前，FIB在高温下通过使用低氟离子传导固体电解质的限制进行操作。合适的液体电解质的开发有可能带出可充电氟化物离子电池的隐藏潜力。控制氟化物在溶液中的反应性对于开发非水性液体电解质至关重要。较早的电子缺陷硼配合物用于结合氟离子并控制其反应性。但是，基于硼的分子过于结合氟离子，不会将氟离子释放到电化学细胞中的电极。因此，这些复合物不适用于电解应用。一系列有机分子已经确定了控制溶液中氟离子的反应性，与此同时，它们将将氟离子释放到电化学细胞中的电极（基于结合能预测）。这样的分子将使纤维的晚期液体电解质的开发。在另一种方法中，PI还提出了开发新的“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构建和调查具有各种金属/金属氟化物组合的纤维。该项目的主要目标是开发合适的氟化物离子输送的非水和准空液体液体电解质，并确保在室内温度和安全性高的情况下进行氟离子电池的性能。潜在的应用和利益：项目的主要结果将使室温纤维的快速发展，并为实现高能可充电纤维的方式铺平道路，并在便携式电子，网格和EVS中应用。

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