Multivalent-Ion versus Proton Insertion into Battery Electrodes

Park, Min Je; Asl, Hooman Yaghoobnejad; Manthiram, Arumugam

doi:10.1021/acsenergylett.0c01021

Cited by 97 publications

(85 citation statements)

References 35 publications

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“…Therefore, more efforts shall be done on exploring the electrochemical behaviors of PBA materials in aqueous electrolytes. iv)For intercalation of multivalent ions in PBA‐based electrodes, the poor diffusion kinetics are mainly due to the large electrostatic interaction between multivalent ions and host frameworks. [ 144 ] It is reported that structural water can accelerate the diffusion of multivalent ions via charge shielding mechanism. However, as discussed above, the existence of structural H 2 O in PBA materials can promote crystal vacancy formation, leading to reduced electrode cycle lifespan.…”

Section: Prospects On Future Research and Development Of Pba Cathode mentioning

confidence: 99%

Structure and Properties of Prussian Blue Analogues in Energy Storage and Conversion Applications

Qin

Shihua

et al. 2020

Adv Funct Materials

315

209

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In recent years, Prussian blue analogue (PBA) materials have been widely explored and investigated in energy storage/conversion fields. Herein, the structure/property correlations of PBA materials as host frameworks for various charge‐carrier ions (e.g., Na+, K+, Zn2+, Mg2+, Ca2+, and Al3+) is reviewed, and the optimization strategies to achieve advanced performance of PBA electrodes are highlighted. Prospects for further applications of PBA materials in proton, ammonium‐ion, and multivalent‐ion batteries are summarized, with extra attention given to the selection of anode materials and electrolytes for practical implementation. This work provides a comprehensive understanding of PBA materials, and will serve as a guidance for future research and development of PBA electrodes.

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Section: Prospects On Future Research and Development Of Pba Cathode mentioning

confidence: 99%

Structure and Properties of Prussian Blue Analogues in Energy Storage and Conversion Applications

Qin

Shihua

et al. 2020

Adv Funct Materials

315

209

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“…7,8 Besides, the charge storage mechanism occurring at the MnO 2 cathode remains a matter of debate, especially regarding the reversible insertion of Zn 2+ cations. 9 An alternative mechanism involving the reversible electrodeposition-electrodissolution of MnO 2 has recently emerged. Because relying on protoncoupled electron transfers, this reaction is associated with significant local pH gradients, triggering precipitation of zinc hydroxides and restricting the gravimetric capacity, as well as to potential drifts.…”

Section: -3mentioning

confidence: 99%

Towards a high MnO₂ loading and gravimetric capacity from proton-coupled Mn⁴⁺/Mn²⁺ reactions using a 3D free-standing conducting scaffold

et al. 2021

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“…Such a fast kinetics is attributed to the reversible pre-insertion of protons and water molecules into the lattice of cathode material, which efficiently decreases the Ca 2+ diffusion barrier and thus improves the kinetics of batteries (Supplementary Fig. 27 ) 48 , 50 .…”

Section: Resultsmentioning

confidence: 99%

A universal strategy towards high–energy aqueous multivalent–ion batteries

et al. 2021

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Rechargeable multivalent metal (e.g., Ca, Mg or, Al) batteries are ideal candidates for large–scale electrochemical energy storage due to their intrinsic low cost. However, their practical application is hampered by the low electrochemical reversibility, dendrite growth at the metal anodes, sluggish multivalent–ion kinetics in metal oxide cathodes and, poor electrode compatibility with non–aqueous organic–based electrolytes. To circumvent these issues, here we report various aqueous multivalent–ion batteries comprising of concentrated aqueous gel electrolytes, sulfur–containing anodes and, high-voltage metal oxide cathodes as alternative systems to the non–aqueous multivalent metal batteries. This rationally designed aqueous battery chemistry enables satisfactory specific energy, favorable reversibility and improved safety. As a demonstration model, we report a room–temperature calcium-ion/sulfur| |metal oxide full cell with a specific energy of 110 Wh kg–1 and remarkable cycling stability. Molecular dynamics modeling and experimental investigations reveal that the side reactions could be significantly restrained through the suppressed water activity and formation of a protective inorganic solid electrolyte interphase. The unique redox chemistry of the multivalent–ion system is also demonstrated for aqueous magnesium–ion/sulfur||metal oxide and aluminum–ion/sulfur||metal oxide full cells.

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Multivalent-Ion versus Proton Insertion into Battery Electrodes

Cited by 97 publications

References 35 publications

Structure and Properties of Prussian Blue Analogues in Energy Storage and Conversion Applications

Structure and Properties of Prussian Blue Analogues in Energy Storage and Conversion Applications

Towards a high MnO₂ loading and gravimetric capacity from proton-coupled Mn⁴⁺/Mn²⁺ reactions using a 3D free-standing conducting scaffold

A universal strategy towards high–energy aqueous multivalent–ion batteries

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Multivalent-Ion versus Proton Insertion into Battery Electrodes

Cited by 97 publications

References 35 publications

Structure and Properties of Prussian Blue Analogues in Energy Storage and Conversion Applications

Structure and Properties of Prussian Blue Analogues in Energy Storage and Conversion Applications

Towards a high MnO2 loading and gravimetric capacity from proton-coupled Mn4+/Mn2+ reactions using a 3D free-standing conducting scaffold

A universal strategy towards high–energy aqueous multivalent–ion batteries

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Towards a high MnO₂ loading and gravimetric capacity from proton-coupled Mn⁴⁺/Mn²⁺ reactions using a 3D free-standing conducting scaffold