High-performance sodium–organic battery by realizing four-sodium storage in disodium rhodizonate

Lee, Min Ah; Hong, Jihyun; Lopez, Jeffrey; Sun, Yongming; Feng, Dawei; Lim, Ki Moo; Chueh, William C.; Toney, Michael F.; Cui, Yi; Bao, Zhenan

doi:10.1038/s41560-017-0014-y

Cited by 401 publications

(371 citation statements)

References 35 publications

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“…[10] This difference can be attributed to the fact that the crystallinity of pristine Li 2 C 6 O 6 and C 6 O 6 electrode material is different. [12] To study this issue,weused XRD to confirm the structure of C 6 O 6 after discharge and charge in the common Figure 1. [12] To study this issue,weused XRD to confirm the structure of C 6 O 6 after discharge and charge in the common Figure 1.…”

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confidence: 99%

Cyclohexanehexone with Ultrahigh Capacity as Cathode Materials for Lithium‐Ion Batteries

et al. 2019

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Organic carbonyl compounds show potential as cathode materials for lithium-ion batteries (LIBs) but the limited capacities (< 600 mA hg À1 )a nd high solubility in electrolyte restrict their further applications.H erein we report the synthesis and application of cyclohexanehexone (C 6 O 6 ), which exhibits an ultrahigh capacity of 902 mA hg À1 with an average voltage of 1.7 Vat2 0mAg À1 in LIBs (corresponding to ah igh energy density of 1533 Wh kg À1 C 6 O 6 ). Ap reliminary cycling test shows that C 6 O 6 displays ac apacity retention of 82 %a fter 100 cycles at 50 mA g À1 because of the limited solubility in high-polarity ionic liquid electrolyte.Furthermore, the combination of DFT calculations and experimental techniques,such as Raman and IR spectroscopy, demonstrates the electrochemical active C=Og roups during dischargea nd charge processes.

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confidence: 99%

Cyclohexanehexone with Ultrahigh Capacity as Cathode Materials for Lithium‐Ion Batteries

et al. 2019

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“…[1] In realizing key-enabling materials for NIBs,v arious Na-intercalation compounds,s uch as oxides, [2] phosphates, [3] hexacyanoferrates, [4] and organics [5] have been explored as possible insertion cathodes.L ayered transitionmetal oxides Na x MO 2 (M:transition metal), one of the most well-studied candidates,h ave been classified into P2 and O3 phases by Delmas et al according to the Na occupation sites and repeated unit cell. [1] In realizing key-enabling materials for NIBs,v arious Na-intercalation compounds,s uch as oxides, [2] phosphates, [3] hexacyanoferrates, [4] and organics [5] have been explored as possible insertion cathodes.L ayered transitionmetal oxides Na x MO 2 (M:transition metal), one of the most well-studied candidates,h ave been classified into P2 and O3 phases by Delmas et al according to the Na occupation sites and repeated unit cell.…”

Section: Sodium-ion Batteries (Nibs) Have Recently Attracted Muchmentioning

confidence: 99%

An Abnormal 3.7 Volt O3‐Type Sodium‐Ion Battery Cathode

et al. 2018

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Layered O3-type sodium oxides (NaMO , M=transition metal) commonly exhibit an O3-P3 phase transition, which occurs at a low redox voltage of about 3 V (vs. Na /Na) during sodium extraction and insertion, with the result that almost 50 % of their total capacity lies at this low voltage region, and they possess insufficient energy density as cathode materials for sodium-ion batteries (NIBs). Therefore, development of high-voltage O3-type cathodes remains challenging because it is difficult to raise the phase-transition voltage by reasonable structure modulation. A new example of O3-type sodium insertion materials is presented for use in NIBs. The designed O3-type Na Ni Sn O material displays a highest redox potential of 3.7 V (vs. Na /Na) among the reported O3-type materials based on the Ni /Ni couple, by virtue of its increased Ni-O bond ionicity through reduced orbital overlap between transition metals and oxygen within the MO slabs. This study provides an orbital-level understanding of the operating potentials of the nominal redox couples for O3-NaMO cathodes. The strategy described could be used to tailor electrodes for improved performance.

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“…[1][2][3] Over the past decades, considerable efforts had been devoted to the research and optimization of high-performance electrode materials for SIBs. To store and make full use of these renewable sources, which exhibit intermittency and randomness, a high-efficiency energy storage system (EES) is urgently needed.…”

Section: Introductionmentioning

confidence: 99%

Low‐Operating Temperature, High‐Rate and Durable Solid‐State Sodium‐Ion Battery Based on Polymer Electrolyte and Prussian Blue Cathode

Tao

et al. 2019

Advanced Energy Materials

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In contrast to the large number of suitable electrode materials, thorough comprehension of the electrolyte remains lacking. Meanwhile, safety issues and side reactions in sodium-ion batteries caused by traditional organic liquid electrolytes are more severe than those in lithium-ion batteries due to the higher chemical reactivity of sodium than that of lithium which will result in a more drastic reaction with liquid electrolyte. Therefore, the discovery of an effective electrolyte remains a major challenge, which hinders the further application of SIBs. Solid-state sodiumion batteries (SSIBs) based on solid-state electrolytes (SSEs) have emerged as an attractive choice to solve these problems, avoiding safety concerns, and severe side reactions with the electrodes. [7] However, the insufficient ionic conductivity of SSEs is the main challenge for the further development of SSIBs. During the past years, many kinds of SSEs had been reported including ceramic-based, sulfide-based, and polymer electrolytes. [8][9][10][11] Although ceramic-based solid-state electrolyte have attracted much attention due to their high ionic conductivity at room temperature, harsh synthetic conditions (for instance, more than 1000 °C and 24 h) and poor contact capability with the electrodes are the main obstacles. Sulfide-based SSEs, featuring softness and superior ionic conductivity, are other promising alternatives with the merits of low-temperature process capability and good contact with the electrodes. Nevertheless, the chemical instability of the sulfide-based SSEs in ambient atmosphere is the biggest obstacle to make easily fabricated and low-cost solid-state sodium-ion batteries.Compared to the SSEs mentioned above, polymer-based SSEs demonstrate remarkable advantages such as excellent flexibility and excellent contact with electrodes. When employing polymer-based SSEs in large-scale industrial applications, the following parameters should be considered: 1) Effective ionic conductivity at room temperature or even at low temperature could guarantee the normal function of SSIBs in a wide temperature range and ensure a durable cycle life; 2) Excellent thermal stability could inhibit the incident caused by thermal runaway; 3) A large electrochemical window can ensure the compatibility between polymer-based SSEs and a high voltage cathode, thus increasing the energy density of the SSIBs but without electrochemical

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High-performance sodium–organic battery by realizing four-sodium storage in disodium rhodizonate

Cited by 401 publications

References 35 publications

Cyclohexanehexone with Ultrahigh Capacity as Cathode Materials for Lithium‐Ion Batteries

Cyclohexanehexone with Ultrahigh Capacity as Cathode Materials for Lithium‐Ion Batteries

An Abnormal 3.7 Volt O3‐Type Sodium‐Ion Battery Cathode

Low‐Operating Temperature, High‐Rate and Durable Solid‐State Sodium‐Ion Battery Based on Polymer Electrolyte and Prussian Blue Cathode

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