High-Energy and High-Power-Density Potassium Ion Batteries Using Dihydrophenazine-Based Polymer as Active Cathode Material

Obrezkov, Filipp A.; Ramezankhani, Vahid; Zhidkov, Ivan S.; Traven, V. F.; Kurmaev, E.Z.; Stevenson, Keith J.; Troshin, Pavel A.

doi:10.1021/acs.jpclett.9b02039

Cited by 86 publications

(73 citation statements)

References 39 publications

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“…Another kind of polyarylamine-type cathode, poly(N-phenyl-5,10-dihydrophenazine) (p-DPPZ, No. 21), can achieve a practical specific capacity of 162 mA•h/g at the current density of 200 mA/g [76]. Notably, with the help of the optimized electrolyte containing high-concentration KPF 6 , p-DPPZ exhibited an excellent rate capability with a capacity retention of ~ 80% when the current density increased from 200 mA/g to 10 A/g (Fig.…”

Section: Anion Insertion Compoundsmentioning

confidence: 92%

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Organic Electrode Materials for Non-aqueous K-Ion Batteries

Wang

Lü

Zhang

et al. 2020

Trans. Tianjin Univ.

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The demands for high-performance and low-cost batteries make K-ion batteries (KIBs) considered as promising supplements or alternatives for Li-ion batteries (LIBs). Nevertheless, there are only a small amount of conventional inorganic electrode materials that can be used in KIBs, due to the large radius of K+ ions. Differently, organic electrode materials (OEMs) generally own sufficiently interstitial space and good structure flexibility, which can maintain superior performance in K-ion systems. Therefore, in recent years, more and more investigations have been focused on OEMs for KIBs. This review will comprehensively cover the researches on OEMs in KIBs in order to accelerate the research and development of KIBs. The reaction mechanism, electrochemical behavior, etc., of OEMs will all be summarized in detail and deeply. Emphasis is placed to overview the performance improvement strategies of OEMs and the characteristic superiority of OEMs in KIBs compared with LIBs and Na-ion batteries.

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Section: Anion Insertion Compoundsmentioning

confidence: 92%

“…Copyright 2017, American Chemical Society, b PDPPD electrodes, reproduced with permission [75]. Copyright 2019, The Royal Society of Chemistry, c p-DPPZ electrodes, reproduced with permission [76]. Copyright 2019, American Chemical Society, and d PVK electrodes [77], reproduced with permission.…”

Section: Quinonesmentioning

confidence: 99%

Organic Electrode Materials for Non-aqueous K-Ion Batteries

Wang

Lü

Zhang

et al. 2020

Trans. Tianjin Univ.

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“…A recent flow of scientific publications reflects a growing interest in materials incorporating dihydrophenazine moieties [ 20–23 ] due to higher specific capacities of these cathodes reached in lithium [ 23 ] and potassium [ 21 ] batteries compared with other polymeric aromatic amines. Moreover, the use of electrically conductive polyamine‐based materials allows for substantial increasing the content of organic active material in the electrode composite, which is already approaching the benchmarks established for conventional inorganic cathodes.…”

Section: Figurementioning

confidence: 99%

“…To the best of our knowledge, this energy density is among the highest values obtained for fast potassium‐ion batteries operating in >10 4 W kg −1 power density regime. [ 21 ]…”

Section: Figurementioning

confidence: 99%

Dihydrophenazine‐Based Copolymers as Promising Cathode Materials for Dual‐Ion Batteries

et al. 2020

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Herein, two novel copolymers of dihydrophenazine with diphenylamine (PDPAPZ) and phenothiazine (PPTZPZ) are synthesized and investigated as cathode materials for dual‐ion batteries. Both polymers demonstrate high average discharge potentials (3.5–3.6 V) in lithium cells. The PDPAPZ//Li cells demonstrate impressive rate capability: specific capacities of 101 and 82 mAh g−1 are reached under galvanostatic charging and discharging at the high current densities of 5 and 20 A g−1, respectively. The capacity retention of 86% and 34% after 100 and 25 000 cycles, respectively, features decent operational stability of the batteries. Furthermore, an encouraging energy density of 398 Wh kg−1 is achieved in potassium PDPAPZ//K cells. The obtained values place PDPAPZ on par with the best organic cathode materials for fast lithium and potassium batteries.

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“…Troshin et al. reported poly( N ‐phenyl‐5,10‐dihydrophenazine) as a high‐energy and high‐power‐density organic cathode that showed an impressive capacity of 162 mAh g −1 at 200 mA g −1 , along with an excellent rate performance (more than 120 mAh g −1 at 10 Ag −1 ) accompanying high energy (Figure 15 h and i), fast charge and discharge within 1–4 min, and long‐term cycle life (retention of 59 % after 2000 cycles at 2 Ag −1 ) [171] . Ma et al.…”

Section: Cathode Materialsmentioning

confidence: 99%

Post‐Lithium‐Ion Battery Era: Recent Advances in Rechargeable Potassium‐Ion Batteries

Wang

Ang

Yang

et al. 2020

Chemistry A European J

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Lithium shortage and the growing demand for electricity storage has encouraged researchers to look for new alternative energy‐storage materials. Due to abundant potassium resources, similar redox potential to lithium metal, and low cost, potassium‐ion batteries (PIBs), as one of the promising alternatives, have been applied in energy‐storage research recently. However, PIBs do not have adequate competition in their electrochemical efficiency because the molar volume of potassium ions is higher than those in lithium and sodium ions. Therefore, for better application and development of PIBs, finding suitable anode and cathode materials is currently the most important task. The latest developments in electrode materials for PIBs have been outlined in depth in this review. It focuses on the structural design and synthetic methods for novel electrode materials, ingenious optimization and tuning strategies, and explains the intrinsic reaction mechanism. The effects of organic electrolytes and aqueous electrolytes on battery systems are compared and clarified. Finally, theoretical and viable insights are given to the challenges posed by the creation and practical application of PIBs in the future.

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High-Energy and High-Power-Density Potassium Ion Batteries Using Dihydrophenazine-Based Polymer as Active Cathode Material

Cited by 86 publications

References 39 publications

Organic Electrode Materials for Non-aqueous K-Ion Batteries

Organic Electrode Materials for Non-aqueous K-Ion Batteries

Dihydrophenazine‐Based Copolymers as Promising Cathode Materials for Dual‐Ion Batteries

Post‐Lithium‐Ion Battery Era: Recent Advances in Rechargeable Potassium‐Ion Batteries

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