Enhancing the interfacial stability of P2-type cathodes by polydopamine-derived carbon coating for achieving performance improvement

Xia, Jiuyang; Wu, Wenwei; Fang, Kaixin; Wu, Xuehang

doi:10.1016/j.carbon.2019.11.011

Cited by 46 publications

(35 citation statements)

References 50 publications

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“…It even demonstrated 70% capacity retention after 500 cycles at a high current density of 5 C. The ultrathin PI layer offers excellent surface protection, facile ion transport, and high ionic conductivity. Besides, carbonized polydopamine‐derived (C‐PDA) coating on P2‐type Na 0.80 Ni 0.22 Zn 0.06 Mn 0.66 O 2 can yield higher discharge capacity, better rate capability, and better cycling stability 158 . C‐PDA prevents the deposition of Na 2 CO 3 /NaOH, which is advantageous to forming the cathode electrolyte interphase layer.…”

Section: Transition‐metal Oxidesmentioning

confidence: 99%

“…Besides, carbonized polydopamine-derived (C-PDA) coating on P2-type Na 0.80 Ni 0.22 Zn 0.06 Mn 0.66 O 2 can yield higher discharge capacity, better rate capability, and better cycling stability. 158 C-PDA prevents the deposition of Na 2 CO 3 / NaOH, which is advantageous to forming the cathode electrolyte interphase layer. Furthermore, the dualmodification strategy of NaTi 2 (PO 4 ) 3 surface coating and Mg substitution for transition metals was designed to inhibit both the surface side reaction and phase transformation.…”

Section: Ternary Metal Oxidesmentioning

confidence: 99%

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Oxide cathodes for sodium‐ion batteries: Designs, challenges, and perspectives

et al. 2022

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Sodium‐ion batteries (SIBs), which are an alternative to lithium‐ion batteries (LIBs), have attracted increasing attention due to their low cost of Na resources and similar Na storage mechanism to LIBs. Compared with anode materials and electrolytes, the development of cathode materials lags behind. Therefore, the key to improving the specific energy and promoting the application of SIBs is to develop high‐performance sodium intercalation cathode materials. Transition‐metal oxides are one of the most promising cathode materials for SIBs owing to their excellent energy density, high specific discharge capacity, and environmentally friendly nature. In the present work, the latest progress in the research of transition‐metal oxides is summarized. Moreover, the existing challenges are discussed, and a series of strategies are proposed to overcome these drawbacks. This review aims at providing guidance for the development of metal oxides in the next stage.

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Section: Transition‐metal Oxidesmentioning

confidence: 99%

Section: Ternary Metal Oxidesmentioning

confidence: 99%

Oxide cathodes for sodium‐ion batteries: Designs, challenges, and perspectives

et al. 2022

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“…215 Conductive polymer coatings such as polypyrrole (PPy) or polydopamine (PDA) can be used to prevent the dissolution of Mn during cycling, thus increasing the stability of Mn-rich layered oxides, while enhancing the materials electrical conductivity. 216,217 Compared to the bare sample without surface modication, P2-Na 0.80 Ni 0.22 Zn 0.06 Mn 0.66 O 2 coated with carbonized PDA exhibits superior rate capability and cycling performance. 217 An additional advantage of using conductive polymer coatings is that their application can be carried out at lower temperatures.…”

Section: Surface Coatingsmentioning

confidence: 99%

“…216,217 Compared to the bare sample without surface modication, P2-Na 0.80 Ni 0.22 Zn 0.06 Mn 0.66 O 2 coated with carbonized PDA exhibits superior rate capability and cycling performance. 217 An additional advantage of using conductive polymer coatings is that their application can be carried out at lower temperatures.…”

Section: Surface Coatingsmentioning

confidence: 99%

Probing the charged state of layered positive electrodes in sodium-ion batteries: reaction pathways, stability and opportunities

2020

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“…Moreover, attributed to its stable chemical characteristics [25], carbon as surface layer can protect the material from side reactions at the electrode/electrolyte interface [26][27][28]. Surface coating is a promising approach to boost the structural stability of electrode materials and a hotspot research field for cathodes [29][30][31][32]. The electrochemical properties of Li 3 VO 4 /C are significantly influenced by the carbon component and the preparation method.…”

Section: Introductionmentioning

confidence: 99%

Sol-gel synthesis of Li3VO4/C composites as anode materials for lithium-ion batteries

Thauer

Захарова

Wegener

et al. 2021

Journal of Alloys and Compounds

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Li 3 VO 4 /C composites have been synthesized by a sol-gel method and postannealing at 650 ºC for 1 h in N 2 flow using either tartaric acid, malic acid, or glucose as both chelating agents and carbon source. The presence of these organic additives crucially affects morphology and crystallite size of the final product. It is found that the electrochemical properties of Li 3 VO 4 /C as anode material for Li-ion batteries (LIBs) are influenced by the morphology, texture and carbon content of the material. When using carboxylic acids as carbon source composites with mesoporous structure and a high surface area are obtained that display an enhanced electrochemical activity. Initially, reversible capacity of about 400 mAh g-1 is obtained. In contrast, Li 3 VO 4 /C synthesized with glucose outperforms in terms of cycling stability. It exhibits a discharge capacity of 299 mAh g-1 after 100 cycles corresponding to an excellent capacity retention of 96 %. The favorable effect of carbon composites on the electrochemical performance of Li 3 VO 4 is shown.

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Enhancing the interfacial stability of P2-type cathodes by polydopamine-derived carbon coating for achieving performance improvement

Cited by 46 publications

References 50 publications

Oxide cathodes for sodium‐ion batteries: Designs, challenges, and perspectives

Oxide cathodes for sodium‐ion batteries: Designs, challenges, and perspectives

Probing the charged state of layered positive electrodes in sodium-ion batteries: reaction pathways, stability and opportunities

Sol-gel synthesis of Li3VO4/C composites as anode materials for lithium-ion batteries

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