Electrochemical and structural characterization of Mg ion intercalation into Co3O4 using ionic liquid electrolytes

Sutto, Thomas E.; Duncan, Teresa T.

doi:10.1016/j.electacta.2012.07.050

Cited by 33 publications

(18 citation statements)

References 21 publications

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“…Co 3 O 4 and RuO 2 were investigated using electrolytes based on organic solvents containing Mg(ClO 4 ) 2 but demonstrated limited electrochemical activity [94]. More recent investigations of Co 3 O 4 [104]and RuO 2 [105] coupled the materials with Mg(ClO 4 ) 2 in ionic liquid as the electrolyte, but linear decrease in capacity with cycle number indicated that deintercalation of divalent magnesium was problematic. The cation-deficient mixed oxide Mn 2.15 Co 0.37 O 4 was investigated but exhibited similarly low capacity [106].…”

Section: Other Cathode Materialsmentioning

confidence: 99%

Cathode materials for magnesium and magnesium-ion based batteries

Huie

Bock

Takeuchi

et al. 2015

Coordination Chemistry Reviews

367

234

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Rechargeable magnesium-ion batteries are a promising candidate technology to address future electrical energy storage needs of large scale mobile and stationary devices, due to the high environmental abundance of magnesium metal and divalent character of magnesium ion. With the recent increase in reports discussing cathode materials for magnesium-ion batteries, it is instructive to assess recent research in order to provide inspiration for future research. This review is a summary of the different chemistries and structures of the materials developed for magnesium ion cathodes. The particular strategies which may lead to future research initiatives are amplified.

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Section: Other Cathode Materialsmentioning

confidence: 99%

Cathode materials for magnesium and magnesium-ion based batteries

Huie

Bock

Takeuchi

et al. 2015

Coordination Chemistry Reviews

367

234

View full text Add to dashboard Cite

show abstract

“…Since the pioneering work of Chevrel phase compounds (Mo 6 S 8 ) reported by Aurbach et al in 2000, tremendous efforts have been devoted to develop cathode materials for RMBs, including transition metal oxides (MnO 2 , V 2 O 5 , Mn 3 O 4 , WO 3 , Co 3 O 4 ), polyanionic compounds (Mg 1.03 Mn 0.97 SiO 4 , MgCoSiO 4 ), and transition metal dichalcogenides (TMDs, such as TiS 2 , MoS 2 , WSe 2 ) . However, most oxides and polyanionic compounds suffer from low capacity and poor cycling performance owing to the strong interactions between divalent Mg 2+ and O 2− in the hosts .…”

Section: Introductionmentioning

confidence: 99%

One‐Step Synthesis of 2‐Ethylhexylamine Pillared Vanadium Disulfide Nanoflowers with Ultralarge Interlayer Spacing for High‐Performance Magnesium Storage

Xue

Chen

Yan

et al. 2019

Advanced Energy Materials

147

122

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3833 mAh cm −3 nearly double that of lithium (2062 mAh cm −3 ), and exhibits a relatively negative reduction potential of −2.4 V versus standard hydrogen electrode (SHE). [6][7][8][9] Despite of these intriguing merits, the practical employment of RMBs is hampered by several main hurdles. First, clumsy Mg 2+ intercalation is the primary limitation for the choice of competent cathode materials, because the strong Coulombic interactions between the divalent Mg 2+ ions and the anions in the host materials often result in sluggish diffusion kinetics and slow interfacial charge transfer. [10][11][12][13] Second, to design appropriate electrolytes for Mg plating/ stripping with high Coulombic efficiency, wide electrochemical window, and good compatibility with the cathodic materials is another great challenge. [14,15] Therefore, to develop advanced cathode materials capable of rapid Mg 2+ insertion/extraction in suitable electrolytes for reversible Mg plating/stripping is highly desirable. Since the pioneering work of Chevrel phase compounds (Mo 6 S 8 ) reported by Aurbach et al. in 2000, [16] tremendous efforts have been devoted to develop cathode materials for RMBs, including transition metal oxides (MnO 2 , V 2 O 5 , Mn 3 O 4 , WO 3 , Co 3 O 4 ), [17-21] polyanionic compounds (Mg 1.03 Mn 0.97 SiO 4 , MgCoSiO 4 ), [22,23] and transition metal dichalcogenides (TMDs, such as TiS 2 , MoS 2 , WSe 2 ). [24][25][26][27][28] However, most oxides and polyanionic compounds suffer from low capacity and poor cycling performance owing to the strong interactions between divalent Mg 2+ and O 2− in the hosts. [25,29] On the contrary, TMDs are deemed to be a class of promising cathode materials with more favorable kinetics, attributing to the relatively weaker MgS or MgSe bonds than MgO bond. [25,28,30] Nevertheless, layered TMDs also suffer from slow Mg 2+ ion diffusion due to the narrow interlayer spacing and the high polarity of Mg 2+ . [31] Recently, it was reported that the interlayer distances of TMDs could be expanded by intercalating guest molecules (water or organic molecules), enlarging the dimension of ion diffusion channels and shielding the Coulombic interactions between Mg 2+ and the lattice anions of hosts. 13,27 In addition, the intercalated molecules served as interlayer pillars are conducive to maintain the framework of host materials for prolonged cycles. [32,33] Rechargeable magnesium batteries (RMBs) are attractive candidates for large-scale energy storage owing to the high theoretical specific capacity, rich earth abundance, and good safety characteristics. However, the development of desirable cathode materials for RMBs is constrained by the high polarity and slow intercalation kinetics of Mg 2+ ions. Herein, it is demonstrated that 2-ethylhexylamine pillared vanadium disulfide nanoflowers (expanded VS 2 ) with enlarged interlayer distances exhibit greatly boosted electrochemical performance as a cathode material in RMBs. Through a one-step solution-phase synthesis and in situ 2-ethylhexylamine intercalatio...

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“…A preliminary test in a full cell configuration showed high polarization and a low discharge voltage for Co 3 O 4 [97]. Sutto and Duncan [241] tested Co 3 O 4 in an ionic liquid electrolyte, but as with RuO 2 [239], found poor electrochemical performance. XRD results indicated ~20% volume change upon intercalation, and the capacity decreased linearly with cycling.…”

Section: Science China Materialsmentioning

confidence: 99%

Beyond Li-ion: electrode materials for sodium- and magnesium-ion batteries

2015

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to develop and install renewable energy harvesting technologies [3]. However, their successful implementation will be dependent on reliable and robust storage devices since harvesting solar and wind energy is inherently intermittent and the majority of consumption targets cannot be readily tethered to the grid.As energy storage devices, batteries possess high portability, high energy density, high Coulombic efficiency, and long cycle life. They are ideal power sources for portable devices, automobiles, and backup power supplies; accordingly, batteries power nearly all of our mobile electronics and are used to improve the efficiency of hybrid electric vehicles [4,5]. Unfortunately, considerable improvements in performance are still required in order to meet the demands of advanced portable devices and achieve energy sustainability (e.g., through smart grid and electric vehicle technologies) [6]. These enduring needs have driven intensive research investments. While efforts have been successful, there is still significant room for improvement regarding the development and understanding of electrode materials [7]. The overall capacity and potential cycling window of many electrode materials are limited to prevent degradation over long term cycling. In addition to exploring new electrode materials, there have been strong efforts to improve those that are already utilized. Expense reduction is a priority as approximately 23% and 8% of the overall battery pack costs stem from the respective cathode and anode active materials alone [8].An alkali-ion battery consists of several electrochemical cells connected in parallel and/or in series to provide a designated current or voltage. Each electrochemical cell has two electrodes separated by an electrolyte that is electrically insulating but ionically conductive. During discharge, when the alkali-ion battery operates as a galvanic cell, alkali ions exit the negative electrode (typically carbon) and insert themselves into the positive electrode while electronsThe need for economical and sustainable energy storage drives battery research today. While Li-ion batteries are the most mature technology, scalable electrochemical energy storage applications benefit from reductions in cost and improved safety. Sodium-and magnesium-ion batteries are two technologies that may prove to be viable alternatives. Both metals are cheaper and more abundant than Li, and have better safety characteristics, while divalent magnesium has the added bonus of passing twice as much charge per atom. On the other hand, both are still emerging fields of research with challenges to overcome. For example, electrodes incorporating Na + are often pulverized under the repeated strain of shuttling the relatively large ion, while insertion and transport of Mg 2+ is often kinetically slow, which stems from larger electrostatic forces. This review provides an overview of cathode and anode materials for sodium-ion batteries, and a comprehensive summary of research on cathodes for magnesium-ion batteries. In additi...

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Electrochemical and structural characterization of Mg ion intercalation into Co3O4 using ionic liquid electrolytes

Cited by 33 publications

References 21 publications

Cathode materials for magnesium and magnesium-ion based batteries

Cathode materials for magnesium and magnesium-ion based batteries

One‐Step Synthesis of 2‐Ethylhexylamine Pillared Vanadium Disulfide Nanoflowers with Ultralarge Interlayer Spacing for High‐Performance Magnesium Storage

Beyond Li-ion: electrode materials for sodium- and magnesium-ion batteries

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