The importance of electrode interfaces and interphases for rechargeable metal batteries

Popović, Jelena

doi:10.1038/s41467-021-26481-8

Cited by 61 publications

(46 citation statements)

References 35 publications

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“…In addition, the possibility of using solid electrolytes could open new pathways to explore properly the intercalation of Mg into many hosts materials, avoiding the shortcomings of the liquid electrolytes. The chemo-mechanical properties of the solid electrolytes, the interface electrode/solid-electrolyte and the ionic transport can be the main issues in all-solid state MIB [ 139 ].…”

Section: Summary and Perspectivesmentioning

confidence: 99%

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Advancing towards a Practical Magnesium Ion Battery

2021

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A post-lithium battery era is envisaged, and it is urgent to find new and sustainable systems for energy storage. Multivalent metals, such as magnesium, are very promising to replace lithium, but the low mobility of magnesium ion and the lack of suitable electrolytes are serious concerns. This review mainly discusses the advantages and shortcomings of the new rechargeable magnesium batteries, the future directions and the possibility of using solid electrolytes. Special emphasis is put on the diversity of structures, and on the theoretical calculations about voltage and structures. A critical issue is to select the combination of the positive and negative electrode materials to achieve an optimum battery voltage. The theoretical calculations of the structure, intercalation voltage and diffusion path can be very useful for evaluating the materials and for comparison with the experimental results of the magnesium batteries which are not hassle-free.

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Section: Summary and Perspectivesmentioning

confidence: 99%

“…It is foreseeable that in the next years the new (liquid and solid) electrolytes and materials very probably will offer opportunities for developing a practical MIB [ 35 , 115 , 137 , 138 , 139 ]. However, it is worth to note that magnesium is a critical raw material, and China has 87% share of global production.…”

Section: Summary and Perspectivesmentioning

confidence: 99%

Advancing towards a Practical Magnesium Ion Battery

2021

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“…In all‐solid‐state systems, the ions transport across the SSE by the driven force (overpotential) coupled with ion‐electron reaction at the electrified interface, a repeated process occurs in the charge and discharge cycle which relies greatly on the redox couple, the properties of SSEs, and the (de)intercalation of ion in the electrode materials. [ 1a,8 ] In this regard, an ideal SSE must meet the requirements concerning ionic conductivity, electrochemical window (EW), interfacial compatibility, and mechanical strength. [ 4b,9 ] However, a single component SSE may not satisfy all these requirements.…”

Section: Introductionmentioning

confidence: 99%

Vertically Heterostructured Solid Electrolytes for Lithium Metal Batteries

Tang

et al. 2022

Adv Funct Materials

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Solid‐state electrolytes (SSEs) have been regarded as the most attractive candidate for safe and high‐energy lithium (Li) batteries of the next generation. However, the inability of current SSEs to keep up with the performance requirements of batteries is significantly affected by complex factors, especially ionic conductivity, mechanochemical properties, and coupled ion/electron reaction at the electrified interfaces. Strategies in solid electrolyte chemistries and technologies are put forward to overcome these challenges while widening the breadth of possible applications. Among them, vertically heterostructured solid‐state electrolytes (HSE) are constructed as a most promising strategy, which can take advantage of individual SSE layers together and rationalize the stability and compatibility of electrodes. This review comprehensively summarizes the specific features of the HSE based on the current knowledge of SSE failure modes. Additionally, a detailed review of the recent progress on the HSE design in terms of organic polymer electrolytes and inorganic electrolytes is generated. Finally, the advantages and drawbacks of the design strategies are discussed. New perspectives about HSE are proposed as well.

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“… 4 , 5 Interfacial issues include high resistances stemming from the imperfect electrode/electrolyte contact, a high activation energy barrier for charge transfer at grain boundaries (or at phase boundaries), and a continuous growth of the solid-electrolyte interphases (SEIs) on reactive alkali metals linked with the formation of mixed-conducting SEIs. 4 , 6 − 8 Additionally, the chemically inhomogeneous interface between alkali metal and the solid electrolyte induces uneven ion transport, leading to the preferential stripping/plating at certain positions and, consequently, the formation of dendrites. 9 Introducing artificial SEIs ( i.e.…”

Section: Introductionmentioning

confidence: 99%

Influence of Porosity of Sulfide-Based Artificial Solid Electrolyte Interphases on Their Performance with Liquid and Solid Electrolytes in Li and Na Metal Batteries

Lim

Fenk

Küster

et al. 2022

ACS Appl. Mater. Interfaces

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Realization of all-solid-state batteries combined with metallic Li/Na is still hindered due to the unstable interface between the alkali metal and solid electrolytes, especially for highly promising thiophosphate materials. Artificial and uniform solid-electrolyte interphases (SEIs), serving as thin ion-conducting films, have been considered as a strategy to overcome the issues of such reactive interfaces. Here, we synthesized sulfide-based artificial SEIs (Li x S y and Na x S y ) on Li and Na by solid/gas reaction between the alkali metal and S vapor. The synthesized films are carefully characterized with various chemical/electrochemical techniques. We show that these artificial SEIs are not beneficial from an application point of view since they either contribute to additional resistances (Li) or do not prevent reactions at the alkali metal/electrolyte interface (Na). We show that Na x S y is more porous than Li x S y , supported by (i) its rough morphology observed by focused ion beam-scanning electron microscopy, (ii) the rapid decrease of R interface (interfacial resistance) in Na x S y -covered-Na symmetric cells with liquid electrolyte upon aging under open-circuit potential, and (iii) the increase of R interface in Na x S y -covered-Na solid-state symmetric cells with Na 3 PS 4 electrolyte. The porous SEI allows the penetration of liquid electrolyte or alkali metal creep through its pores, resulting in a continuous chemical reaction. Hence, porosity of SEIs in general should be carefully taken into account in the application of batteries containing both liquid electrolyte and solid electrolyte.

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The importance of electrode interfaces and interphases for rechargeable metal batteries

Cited by 61 publications

References 35 publications

Advancing towards a Practical Magnesium Ion Battery

Advancing towards a Practical Magnesium Ion Battery

Vertically Heterostructured Solid Electrolytes for Lithium Metal Batteries

Influence of Porosity of Sulfide-Based Artificial Solid Electrolyte Interphases on Their Performance with Liquid and Solid Electrolytes in Li and Na Metal Batteries

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