On the strange case of divalent ions intercalation in V2O5

Verrelli, Roberta; Black, Ashley P.; Pattanathummasid, C.; Tchitchekova, Deyana S.; Ponrouch, Alexandre; Oró‐Solé, Judith; Frontera, C.; Bardé, Fanny; Rozier, Patrick; Palacín, M. Rosa

doi:10.1016/j.jpowsour.2018.08.024

Cited by 71 publications

(75 citation statements)

References 49 publications

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“…However, there is a question about what really cycles in this configuration. As demonstrated by Verrelli et al the electrochemical process that occurs in V 2 O 5 cathodes in the presence of Mg cations in dry and wet alkyl-carbonate-based electrolyte solutions is related to protons insertion rather than to Mg ions insertion 49. …”

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confidence: 96%

Anode-Electrolyte Interfaces in Secondary Magnesium Batteries

Attias

Salama

Hirsch

et al. 2019

Joule

317

367

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Secondary magnesium batteries are still in the research stage, after the first prototype of a magnesium-based battery was demonstrated almost two decades ago. Since this breakthrough, despite tremendous efforts by numerous research groups, we are not aware of any system that exhibits better performance in terms of Coulombic efficiency over prolonged cycling. The scientific community is now focusing on the basic phenomena that hinder development of practical magnesium-based rechargeable batteries. Today, we have a better understanding of the structure of electrolyte solutions relevant to rechargeable Mg batteries and its effect on the electrochemical performance. New electrolyte solutions that are not based on organometallic moieties currently surpass the performance of the first generations of complex solutions. There is even an attempt to test alternative anode materials for magnesium-based energy storage systems. In this review, we summarize recent studies conducted in the field, with a focus on the anode/electrolyte solutions side.

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confidence: 96%

Anode-Electrolyte Interfaces in Secondary Magnesium Batteries

Attias

Salama

Hirsch

et al. 2019

Joule

317

367

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“…In addition, Palacín et al. [ 100 ] evaluated the feasibility of α‐V 2 O 5 as a CIB cathode material in different temperatures and moisture conditions. In a dry alkyl carbonate‐based electrolyte, no electrochemical activity was observed at either room temperature or 55 °C.…”

Section: Cathode Materialsmentioning

confidence: 99%

Recent Advances and Perspectives on Calcium‐Ion Storage: Key Materials and Devices

Yao

et al. 2020

Advanced Materials

126

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The urgent demand for cost‐effective energy storage devices for large‐scale applications has led to the development of several beyond‐lithium energy storage systems (EESs). Among them, calcium‐ion batteries (CIBs) are attractive due to abundant calcium resources, excellent volumetric and gravimetric capacities of Ca metal anode, and potential high energy density coming from the multivalent feature of Ca‐ion. Therefore, the exploration of CIBs electrode materials and the construction of CIBs devices are gaining increasing research interest. Relevant publications cover a wide range of materials by both theoretical and experimental investigations, whereas the performances of rocking‐chair CIBs have been unsatisfactory. Meanwhile, multi‐ion strategies using more than one ion as the charge carrier have been demonstrated to be feasible and promising options in realizing room temperature CIBs. The summary and reflection of previous studies would provide useful information for future exploration and optimization. In this circumstance, this paper overviews the reported CIBs electrode materials, including both anode and cathode, and presents the latest progress of multi‐ion strategies in CIBs. Fundamental challenges, potential solutions, and opportunities are accordingly proposed, mimicking other more mature EESs. This review may promote the development of electrode materials and accelerate the construction of low‐cost and high‐performance CIBs.

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“…Detailed analysis has revealed that many literature reports of reversible Mg intercalation were more likely to result from parasitic electrolyte decomposition and proton intercalation. 15 Indeed, a recent perspective has highlighted the disparity between reported capacities of Mg battery cathodes and the capacity verified by elemental, redox, and structural changes in the oxide host. 16 For this reason, reported capacities should not be directly equated with Mg intercalation activity without robust supporting evidence.…”

Section: Introductionmentioning

confidence: 99%

“…17 While many different structures and compositions of vanadium oxides and phosphates have been investigated for Mg batteries, most have only demonstrated reversible Mg intercalation in the presence of water (either in the electrolyte or contained in the structure), such as VO x nanotubes, 18,19 cathode materials, respectively, and that any additional reactivity could be attributed to parasitic reactions and proton intercalation. 15,22 Therefore, the postulated enhancement of Mg intercalation by water inclusion has been cast in serious doubt, and rigorous studies of electrode materials should be conducted in anhydrous environments.…”

Section: Introductionmentioning

confidence: 99%