Sodium zinc hexacyanoferrate with a well-defined open framework as a positive electrode for sodium ion batteries

Lee, Hongkyung; Kim, Yi Kim Yong-Il; Park, Jk Park Jung-Ki; Choi, Jang Wook

doi:10.1039/c2cc33771a

Cited by 189 publications

(132 citation statements)

References 21 publications

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“…, and NH 4 + intercalation into these matrices affords electrodes that have been explored in batteries in both aqueous and organic media. [54][55][56] Nickel(II) hexacyanoferrate (NiHCF) and copper(II) hexacyanoferrate (CuHCF) are examples of PBAs. CN bridges connect iron ions and the M metal (M = Ni 2+ , Cu 2+ ) in NiHCF and in CuHCF, to create a face-centered cubic structure.…”

Section: Prussian Blue Analoguesmentioning

confidence: 99%

Electrochemical Systems for Renewable Energy Conversion from Salinity and Proton Gradients

Morais¹,

Lima²,

Gomes³

et al. 2018

J. Braz. Chem. Soc.

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Ever-rising energy demand, fossil fuel dependence, and climate issues have harmful consequences to the society. Exploring clean and renewable energy to diversify the world energy matrix has become an urgent matter. Less explored or unexplored renewable energy sources like the salinity and proton gradient energy are an attractive alternative with great energy potential. This paper discusses important electrochemical systems for energy conversion from natural and artificial concentration gradients, namely capacitive mixing (CapMix), mixing entropy batteries (MEB), and neutralization batteries (NB); the working principle and thermodynamic formalism of these systems; and the materials employed in the assembly of these systems.

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Section: Prussian Blue Analoguesmentioning

confidence: 99%

Electrochemical Systems for Renewable Energy Conversion from Salinity and Proton Gradients

Morais¹,

Lima²,

Gomes³

et al. 2018

J. Braz. Chem. Soc.

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“…1a) and is 171 mAh g À 1 in the case of Prussian Blue (FeHCFe). Recently, we and others have utilized PBAs as battery electrodes with excellent cycle life and rate performance in both aqueous and organic electrolytes for NIBs [11][12][13][23][24][25][26][27][28][29] .…”

mentioning

confidence: 99%

Manganese hexacyanomanganate open framework as a high-capacity positive electrode material for sodium-ion batteries

et al. 2014

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Potential applications of sodium-ion batteries in grid-scale energy storage, portable electronics and electric vehicles have revitalized research interest in these batteries. However, the performance of sodium-ion electrode materials has not been competitive with that of lithium-ion electrode materials. Here we present sodium manganese hexacyanomanganate (Na 2 Mn II [Mn II (CN) 6 ]), an open-framework crystal structure material, as a viable positive electrode for sodium-ion batteries. We demonstrate a high discharge capacity of 209 mAh g À 1 at C/5 (40 mA g À 1 ) and excellent capacity retention at high rates in a propylene carbonate electrolyte. We provide chemical and structural evidence for the unprecedented storage of 50% more sodium cations than previously thought possible during electrochemical cycling. These results represent a step forward in the development of sodium-ion batteries.

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“…However, most of these materials still exhibited insufficient cycle lifetimes and large voltage steps that limit their practical capacity. The Prussian blue family has also been extensively investigated for both organic (23,24) and aqueous electrolytes (25) owing to its unique advantages related to low material cost, low temperature synthesis, and decent electrochemical performance from well-developed ionic channel structures. However, the as-synthesized Prussian blue family is usually in the potassium form and thus requires ion exchange with Na ions.…”

mentioning

confidence: 99%

Role of intermediate phase for stable cycling of Na ₇ V ₄ (P ₂ O ₇ ) ₄ PO ₄ in sodium ion battery

Lim

Kim

Chung

et al. 2013

Proc. Natl. Acad. Sci. U.S.A.

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137

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Sodium ion batteries offer promising opportunities in emerging utility grid applications because of the low cost of raw materials, yet low energy density and limited cycle life remain critical drawbacks in their electrochemical operations. Herein, we report a vanadium-based ortho-diphosphate, Na 7 V 4 (P 2 O 7 ) 4 PO 4 , or VODP, that significantly reduces all these drawbacks. Indeed, VODP exhibits single-valued voltage plateaus at 3.88 V vs. Na/Na + while retaining substantial capacity (>78%) over 1,000 cycles. Electronic structure calculations reveal that the remarkable single plateau and cycle life originate from an intermediate phase (a very shallow voltage step) that is similar both in the energy level and lattice parameters to those of fully intercalated and deintercalated states. We propose a theoretical scheme in which the reaction barrier that arises from lattice mismatches can be evaluated by using a simple energetic consideration, suggesting that the presence of intermediate phases is beneficial for cell kinetics by buffering the differences in lattice parameters between initial and final phases. We expect these insights into the role of intermediate phases found for VODP hold in general and thus provide a helpful guideline in the further understanding and design of battery materials.cathode | single voltage | atomic reorganization | ab initio calculation S odium ion batteries (SIBs) provide advantages of unlimited resource, low material cost, and easy worldwide accessibility that could make them the material of choice for grid-scale energy storage systems (1, 2). Unfortunately, the electrochemical performance of current SIBs remains inferior to that of lithium ion batteries (LIBs). In particular, we require SIB cathode materials that give a long cycle life with large capacities and high voltages under fast operating conditions, comparable to the Li counterparts.Numerous layered Na x MO 2 [M = Co, Mn, Fe, Ni, Cr, and multicomponent transition metals (TMs)] have been intensively studied as candidate SIB cathodes because such layer-structured materials typically exhibit higher capacities than other classes of materials (3-10). However, they suffer from a substantial capacity decay with cycling, owing to crystal structure collapse and/or unstable electrode-electrolyte interfaces (10). For more stable host frameworks, various polyanion structures have also been studied as SIB cathodes as a natural extension of the success shown in the LIB materials of the same classes, including TM fluorophosphates (11-15), pyrophosphates (16-18) and phosphates (19)(20)(21)(22). However, most of these materials still exhibited insufficient cycle lifetimes and large voltage steps that limit their practical capacity. The Prussian blue family has also been extensively investigated for both organic (23, 24) and aqueous electrolytes (25) owing to its unique advantages related to low material cost, low temperature synthesis, and decent electrochemical performance from well-developed ionic channel structures. However, the as-syn...

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Sodium zinc hexacyanoferrate with a well-defined open framework as a positive electrode for sodium ion batteries

Cited by 189 publications

References 21 publications

Electrochemical Systems for Renewable Energy Conversion from Salinity and Proton Gradients

Electrochemical Systems for Renewable Energy Conversion from Salinity and Proton Gradients

Manganese hexacyanomanganate open framework as a high-capacity positive electrode material for sodium-ion batteries

Role of intermediate phase for stable cycling of Na ₇ V ₄ (P ₂ O ₇ ) ₄ PO ₄ in sodium ion battery

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Sodium zinc hexacyanoferrate with a well-defined open framework as a positive electrode for sodium ion batteries

Cited by 189 publications

References 21 publications

Electrochemical Systems for Renewable Energy Conversion from Salinity and Proton Gradients

Electrochemical Systems for Renewable Energy Conversion from Salinity and Proton Gradients

Manganese hexacyanomanganate open framework as a high-capacity positive electrode material for sodium-ion batteries

Role of intermediate phase for stable cycling of Na 7 V 4 (P 2 O 7 ) 4 PO 4 in sodium ion battery

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Role of intermediate phase for stable cycling of Na ₇ V ₄ (P ₂ O ₇ ) ₄ PO ₄ in sodium ion battery