The Development of Recyclable Hybrid Solid Electrolytes for Battery Applications
用于电池应用的可回收混合固体电解质的开发
基本信息
- 批准号:2716991
- 负责人:
- 金额:--
- 依托单位:
- 依托单位国家:英国
- 项目类别:Studentship
- 财政年份:2022
- 资助国家:英国
- 起止时间:2022 至 无数据
- 项目状态:未结题
- 来源:
- 关键词:
项目摘要
The exponential growth in rechargeable battery technologies over the last 20 years is due to the rising demand for portable electronics, but more recently, batteries have become an increasingly important means of storing energy, to drive the use of renewable energy resources and decrease the impact of human activity on the environment. Since their development in the 1970s-80s, lithium ion (Li-ion) batteries have dominated the field, exhibited by the award of the Nobel Prize in Chemistry in 2019 to Goodenough, Whittingham and Yoshino. Li-ion batteries have enabled the development of electric vehicles and the storage of energy from renewable sources, such as solar and wind power. Their significant downfall, however, is the use of lithium salts in organic solvents as the cell's electrolyte, which are highly flammable and pose potential safety risks, such as fires and explosions. An explored alternative to these dangerous solvents are solid or semi-crystalline electrolytes (SEs), which have shown to improve the safety of Li-ion batteries, producing what is known as an all-solid-state battery (ASSB). This PhD research encompasses the development of recyclable hybrid solid electrolytes for implementation into solid-state battery systems, with the hybrid element being a polymer/ceramic combination. Some polymers are capable of functioning effectively as electrolytes, and display the robust mechanical properties required for use in everyday devices, i.e., poly(ethylene oxide)s (PEO) displays considerable flexibility and chemical stability, making them excellent candidate materials for SEs. Yet, their commercialisation alone isn't feasible due to their inability to meet the practical conductivities required (~10-3 S cm-1) due to the frustrated transport of ions through the material. Therefore, polymer electrolytes can be combined with ceramic fillers such as Al2O3 or TiO2, drastically improving the ionic conductivity of the SEs, without affecting their mechanical strength. The project explores the potential of such poly(acetals) in hybrid electrolytes, assessing their ion transport mechanisms using a combination of conventional and in situ solid-state NMR spectroscopy, in conjunction with impedance measurements and muon spin relaxation spectroscopy studies. The effects of structural parameters of the polymers such as monomer composition and degree of polymerisation on the resultant mechanical properties will be assessed, to enable the production of robust electrolytes. A range of different inorganic ceramics will also be evaluated to determine the optimal poly(acetal):ceramic combination. Key research in this area will be to evaluate the performance of the hybrid electrolytes prepared relative to current PEO-based electrolytes, to determine their standing within the community of solid electrolytes. Additionally, computational techniques, including atomistic modelling and DFT calculations will be utilised to understand the ion mobility within the new SE materials. This project spans multiple EPSRC research areas including materials for energy applications, energy storage, polymer materials, materials engineering (ceramics), computational chemistry, and functional ceramics and inorganics, with the work falling under the themes of energy and manufacturing the future, as well as circular economy.
在过去的20年里,可充电电池技术的指数增长是由于对便携式电子产品的需求不断增长,但最近,电池已经成为一种越来越重要的储能手段,以推动可再生能源的使用并减少人类活动对环境的影响。 自20世纪70年代至80年代发展以来,锂离子电池一直主导着该领域,2019年诺贝尔化学奖授予古迪纳夫,惠廷厄姆和吉野。锂离子电池使电动汽车的发展和可再生能源的储存成为可能,如太阳能和风能。然而,它们的显著缺点是使用有机溶剂中的锂盐作为电池的电解质,这是高度易燃的,并带来潜在的安全风险,如火灾和爆炸。这些危险溶剂的一种探索替代品是固体或半结晶电解质(SE),它们已被证明可以提高锂离子电池的安全性,从而产生所谓的全固态电池(ASSB)。 这项博士研究包括开发可回收的混合固体电解质,用于固态电池系统,混合元件是聚合物/陶瓷组合。一些聚合物能够有效地用作电解质,并显示出用于日常设备所需的稳健的机械性能,即,聚环氧乙烷(PEO)具有良好的柔韧性和化学稳定性,是制备SE的理想材料。然而,它们的商业化本身是不可行的,因为它们不能满足所需的实际电导率(~10-3 S cm-1),这是由于离子通过材料的传输受阻。因此,聚合物电解质可以与陶瓷填料如Al 2 O3或TiO 2组合,大大提高SE的离子电导率,而不影响其机械强度。 该项目探讨了这种聚(缩醛)在混合电解质中的潜力,使用常规和原位固态NMR光谱结合阻抗测量和μ子自旋弛豫光谱研究来评估其离子传输机制。将评估聚合物的结构参数(例如单体组成和聚合度)对所得机械性质的影响,以使得能够生产稳健的电解质。还将对一系列不同的无机陶瓷进行评价,以确定最佳的聚(缩醛):陶瓷组合。这一领域的关键研究将是评估相对于当前基于PEO的电解质制备的混合电解质的性能,以确定它们在固体电解质社区中的地位。此外,计算技术,包括原子模型和DFT计算将用于了解新SE材料内的离子迁移率。 该项目涵盖多个EPSRC研究领域,包括能源应用材料,储能,聚合物材料,材料工程(陶瓷),计算化学,功能陶瓷和无机物,工作属于能源和制造未来的主题,以及循环经济。
项目成果
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其他文献
吉治仁志 他: "トランスジェニックマウスによるTIMP-1の線維化促進機序"最新医学. 55. 1781-1787 (2000)
Hitoshi Yoshiji 等:“转基因小鼠中 TIMP-1 的促纤维化机制”现代医学 55. 1781-1787 (2000)。
- DOI:
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LiDAR Implementations for Autonomous Vehicle Applications
- DOI:
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2021 - 期刊:
- 影响因子:0
- 作者:
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吉治仁志 他: "イラスト医学&サイエンスシリーズ血管の分子医学"羊土社(渋谷正史編). 125 (2000)
Hitoshi Yoshiji 等人:“血管医学与科学系列分子医学图解”Yodosha(涉谷正志编辑)125(2000)。
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Effect of manidipine hydrochloride,a calcium antagonist,on isoproterenol-induced left ventricular hypertrophy: "Yoshiyama,M.,Takeuchi,K.,Kim,S.,Hanatani,A.,Omura,T.,Toda,I.,Akioka,K.,Teragaki,M.,Iwao,H.and Yoshikawa,J." Jpn Circ J. 62(1). 47-52 (1998)
钙拮抗剂盐酸马尼地平对异丙肾上腺素引起的左心室肥厚的影响:“Yoshiyama,M.,Takeuchi,K.,Kim,S.,Hanatani,A.,Omura,T.,Toda,I.,Akioka,
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