Dynamic Nuclear Polarization in battery materials

IF 1.8 3区 化学 Q4 CHEMISTRY, PHYSICAL Solid state nuclear magnetic resonance Pub Date : 2022-02-01 DOI:10.1016/j.ssnmr.2021.101763
Shira Haber, Michal Leskes
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引用次数: 8

Abstract

The increasing need for portable and large-scale energy storage systems requires development of new, long lasting and highly efficient battery systems. Solid state NMR spectroscopy has emerged as an excellent method for characterizing battery materials. Yet, it is limited when it comes to probing thin interfacial layers which play a central role in the performance and lifetime of battery cells. Here we review how Dynamic Nuclear Polarization (DNP) can lift the sensitivity limitation and enable detection of the electrode-electrolyte interface, as well as the bulk of some electrode and electrolyte systems. We describe the current challenges from the point of view of materials development; considering how the unique electronic, magnetic and chemical properties differentiate battery materials from other applications of DNP in materials science. We review the current applications of exogenous and endogenous DNP from radicals, conduction electrons and paramagnetic metal ions. Finally, we provide our perspective on the opportunities and directions where battery materials can benefit from current DNP methodologies as well as project on future developments that will enable NMR investigation of battery materials with sensitivity and selectivity under ambient conditions.

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电池材料中的动态核极化
对便携式和大规模储能系统日益增长的需求要求开发新的、持久的和高效的电池系统。固态核磁共振波谱已成为表征电池材料的一种极好的方法。然而,当涉及到探测薄界面层时,它是有限的,而薄界面层对电池的性能和寿命起着核心作用。在这里,我们回顾了动态核极化(DNP)如何解除灵敏度限制,并能够检测电极-电解质界面,以及一些电极和电解质系统的主体。我们从材料发展的角度描述当前的挑战;考虑到独特的电子、磁性和化学性质如何将电池材料与DNP在材料科学中的其他应用区分开来。综述了自由基、传导电子和顺磁性金属离子对外源和内源DNP的应用现状。最后,我们提供了我们对电池材料可以从当前DNP方法中受益的机会和方向的看法,以及未来发展的项目,这些项目将使在环境条件下具有灵敏度和选择性的电池材料的NMR研究成为可能。
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来源期刊
CiteScore
5.30
自引率
9.40%
发文量
42
审稿时长
72 days
期刊介绍: The journal Solid State Nuclear Magnetic Resonance publishes original manuscripts of high scientific quality dealing with all experimental and theoretical aspects of solid state NMR. This includes advances in instrumentation, development of new experimental techniques and methodology, new theoretical insights, new data processing and simulation methods, and original applications of established or novel methods to scientific problems.
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