Magnesium storage performance and mechanism of CuS cathode

Xiong, Fangyu; Yang, Fan; Shi, Tan; Zhou, Limin; Xu, Yanan; Pei, Cunyuan; An, Qinyou; Mai, Liqiang

doi:10.1016/j.nanoen.2018.02.060

Cited by 208 publications

(120 citation statements)

References 39 publications

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“…A reduction of molybdenum center (Mo 6+ +3e − →Mo 3+ ) or a combination of reduction of molybdenum center (Mo 6+ +2e − →Mo 4+ ) and copper center (Cu + +1e − →Cu 0 ) could be responsible for the electrochemical reaction with Mg 2+ ion. Indeed, the reduction of Cu + center causing the intercalation of Mg 2+ has been reported for the case of CuS cathode …”

Section: Figurementioning

confidence: 96%

Cu₂MoS₄ Nanotubes as a Cathode Material for Rechargeable Magnesium‐ion Battery

Truong

Ung

et al. 2020

ChemistrySelect

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Identification of efficient cathode materials represents a huge challenge for development of reversible Mg‐ion batteries (MIBs). Herein, we report on the preparation of copper molybdenum sulfide (Cu2MoS4) in a novel microstructure, namely nanotube with the square‐cross‐section, and its use as a cathode material for Mg‐ion battery. The Cu2MoS4 nanotube was prepared via a one‐pot hydrothermal method using Cu2O nanocubes as a sacrificial template. The Cu2MoS4 nanotube belongs to the top‐tier MIBs cathode materials that shows a remarkable specific capacity of 390.5 mAh g−1.

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Section: Figurementioning

confidence: 96%

Cu₂MoS₄ Nanotubes as a Cathode Material for Rechargeable Magnesium‐ion Battery

Truong

Ung

et al. 2020

ChemistrySelect

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“…A soft acid M 2 m + cation (such as Cu + ) would have a relatively stronger interaction with X n − anion and assist the dissociation of discharge product (Mg n X m ). For example, Cu 2 S and Cu 2 Se, which are combinations of soft‐acid cation (Cu + ) and soft‐base anion (S 2− and Se 2− ), show superior Mg‐storage performances as conversion cathodes . Therefore, a promising conversion cathode could be a combination of soft anions and soft cations.…”

Section: Introductionmentioning

confidence: 99%

A High‐Rate Rechargeable Mg Battery Based on AgCl Conversion Cathode with Fast Solid‐State Mg²⁺ Diffusion Kinetics

Zhang

Shen

et al. 2019

Energy Tech

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Rechargeable Mg batteries are attractive candidates for large‐scale energy storage batteries with high safety due to the low‐cost and non‐dendritic metallic Mg anode. However, exploring high‐performance cathode materials is blocking their development. Herein, a high‐rate rechargeable Mg battery is established with a AgCl cathode, delivering a high reversible capacity of 70.3 mAh g−1 at 100 mA g−1, an outstanding rate capability of 32.6 mAh g−1 at 1000 mA g−1, and a superior long‐term cyclability over 500 cycles. Further investigation of the mechanism demonstrates that a conversion reaction takes place between AgCl and metallic Ag0 for the cathode. The solid‐state Mg2+ diffusion coefficient is as high as 8.1 × 10−11 cm2 s−1, which would be the reason for the high rate capability. The current study reveals significant insights to select promising Mg‐storage conversion cathodes by a combination of soft anions and soft transition‐metal cations.

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“…The mechanism for metal sulfide cathodes is similar to that of metal oxides [100]. However, the co-intercalation mechanism was observed for MoS 2 as cathode material [86].…”

Section: Metal Sulfides As Cathodes In Mg-ion Batteriesmentioning

confidence: 73%

Beyond Lithium-Based Batteries

et al. 2020

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We discuss the latest developments in alternative battery systems based on sodium, magnesium, zinc and aluminum. In each case, we categorize the individual metals by the overarching cathode material type, focusing on the energy storage mechanism. Specifically, sodium-ion batteries are the closest in technology and chemistry to today’s lithium-ion batteries. This lowers the technology transition barrier in the short term, but their low specific capacity creates a long-term problem. The lower reactivity of magnesium makes pure Mg metal anodes much safer than alkali ones. However, these are still reactive enough to be deactivated over time. Alloying magnesium with different metals can solve this problem. Combining this with different cathodes gives good specific capacities, but with a lower voltage (<1.3 V, compared with 3.8 V for Li-ion batteries). Zinc has the lowest theoretical specific capacity, but zinc metal anodes are so stable that they can be used without alterations. This results in comparable capacities to the other materials and can be immediately used in systems where weight is not a problem. Theoretically, aluminum is the most promising alternative, with its high specific capacity thanks to its three-electron redox reaction. However, the trade-off between stability and specific capacity is a problem. After analyzing each option separately, we compare them all via a political, economic, socio-cultural and technological (PEST) analysis. The review concludes with recommendations for future applications in the mobile and stationary power sectors.

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Magnesium storage performance and mechanism of CuS cathode

Cited by 208 publications

References 39 publications

Cu₂MoS₄ Nanotubes as a Cathode Material for Rechargeable Magnesium‐ion Battery

Cu₂MoS₄ Nanotubes as a Cathode Material for Rechargeable Magnesium‐ion Battery

A High‐Rate Rechargeable Mg Battery Based on AgCl Conversion Cathode with Fast Solid‐State Mg²⁺ Diffusion Kinetics

Beyond Lithium-Based Batteries

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Magnesium storage performance and mechanism of CuS cathode

Cited by 208 publications

References 39 publications

Cu2MoS4 Nanotubes as a Cathode Material for Rechargeable Magnesium‐ion Battery

Cu2MoS4 Nanotubes as a Cathode Material for Rechargeable Magnesium‐ion Battery

A High‐Rate Rechargeable Mg Battery Based on AgCl Conversion Cathode with Fast Solid‐State Mg2+ Diffusion Kinetics

Beyond Lithium-Based Batteries

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Cu₂MoS₄ Nanotubes as a Cathode Material for Rechargeable Magnesium‐ion Battery

Cu₂MoS₄ Nanotubes as a Cathode Material for Rechargeable Magnesium‐ion Battery

A High‐Rate Rechargeable Mg Battery Based on AgCl Conversion Cathode with Fast Solid‐State Mg²⁺ Diffusion Kinetics