Synthesis and characterization of carbon coated LiCo1/3Ni1/3Mn1/3O2 and bio-mass derived graphene like porous carbon electrodes for aqueous Li-ion hybrid supercapacitor

Balasubramaniam, R.; Sivalingam, Yuvaraj; Surendran, Subramani; Pandi, Karuppiah; Ramasamy, Hari Vignesh; Lee, Y.S.; Selvan, R. Kalai

doi:10.1016/j.jpcs.2017.09.012

Cited by 24 publications

(16 citation statements)

References 69 publications

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“…Furthermore, the diffusion kinetics of electrodes can be understood by determining the diffusion coefficient [26] . The diffusion coefficient for the electrode was determined using the Randles–Ševčík equation as represented in equation 6. [27–28]

true i_{p} = 2.686 \times 10^{5} \times n^{3 / 2} A D^{1 / 2} C_{o} v^{1 / 2}

…”

Section: Resultsmentioning

confidence: 99%

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NiC₂O₄ ⋅ 2H₂O Nanoflakes: A Novel Redox‐mediated Intercalative Pseudocapacitive Electrode for Supercapacitor Applications in Aqueous KOH and Neutral Na₂SO₄ electrolytes

et al. 2022

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Pseudocapacitors with the accessibility of different oxidation states for redox‐mediated charge storage can achieve higher energy density compared to EDLC. NiC2O4 ⋅ 2H2O is envisaged here as a potential pseudocapacitive electrode that works with the accessibility of the Ni2+/3+ redox couple in the flexible structural network due to the presence of planar oxalate anions (C2O42−) supported by the 3‐dimensional hydrogen bonding network of crystal water. The NiC2O4 ⋅ 2H2O electrode showed a superior specific capacitance equivalent to 990 F/g in the potential window of 0 to 0.45 V observed in aqueous KOH electrolyte and 440 F/g in 1 M neutral Na2SO4 electrolyte in the potential window of 0 to 0.85 V. Predominant intercalative mechanism seems to play an important role behind the high charge storage capacity of NiC2O4 ⋅ 2H2O electrode and the interactive contribution was found to be ∼84 % and surface contribution was found to be ∼16 % respectively. Further, in full cell asymmetric supercapacitor (AAS) mode in KOH electrolyte, in which NiC2O4 ⋅ 2H2O is made as the positive electrode and Activated Carbon (AC) is made as the negative electrode, the highest specific energy of 141.5 Wh/kg and specific power of ∼559 W/kg at 0.2 A/g current density was obtained with superior cyclic stability. The detailed electrochemical studies confirm high cyclic stability and stable performance that makes NiC2O4 ⋅ 2H2O a potential pseudocapacitive electrode for large‐scale energy storage applications.

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true i_{p} = 2.686 \times 10^{5} \times n^{3 / 2} A D^{1 / 2} C_{o} v^{1 / 2}

…”

Section: Resultsmentioning

confidence: 99%

“…[26] The diffusion coefficient for the electrode was determined using the Randles-Ševčík equation as represented in equation 6. [27][28] i p ¼ 2:686…”

Section: Chemistryselectmentioning

confidence: 99%

NiC₂O₄ ⋅ 2H₂O Nanoflakes: A Novel Redox‐mediated Intercalative Pseudocapacitive Electrode for Supercapacitor Applications in Aqueous KOH and Neutral Na₂SO₄ electrolytes

et al. 2022

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“…Several comprehensive reviews have discussed the cathode and anode materials for Li + /Na + AHSCs [14,26,27,70,71]. Although morphological characterization and micro/nano-structure engineering have been widely investigated toward battery-type electrodes for boosting the redox kinetics and cycling stability, other promising strategies such as electronic structure tuning via doping or formation of solid solution have also been proposed and developed in recent years [55,66,72,73].…”

Section: Design Of Battery-type Electrodes In Ahscsmentioning

confidence: 99%

Recent advances in materials and device technologies for aqueous hybrid supercapacitors

Gui

et al. 2021

Sci. China Mater.

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Aqueous hybrid supercapacitors (AHSCs) offer potential safety and eco-friendliness compared with conventional electrochemical energy storage devices that use toxic and flammable organic electrolytes. They can serve as the bridge between aqueous batteries and aqueous supercapacitors by combining the advantages of high energy of the battery electrode and high power as well as long lifespan of the capacitive electrode. Over the past few decades, extensive research efforts have been devoted to developing advanced materials and fascinating device architectures for AHSCs. However, further development related to the compatibilities between the battery-type electrode and capacitive electrode remains stagnant mainly due to discrepancy encountered in terms of reaction kinetics and capacity. This review focuses on the recent progress made in the field of AHSCs via elucidating the main concepts on the design of battery and capacitive electrodes and emerging electrolytes. In particular, ingenious AHSCs that possess either better flexibility toward materials selection or better device functionality such as those with "dual-ion" energy storage mechanism and non-polarity feature are also discussed. Recent advances and unresolved issues in multivalent ion hybrid devices (in particular, zinc-ion AHSCs) are further outlined. Finally, future research directions and challenges for AHSCs are presented, which are anticipated to deliver higher energy and demonstrate greater multifunctionalities for more breakthrough technology applications.

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“…Such ndings are in agreement with the roughness obtained via AFM, showing that these samples are smoother than Po-Pr + and Po-Pr-. [30,31]. The M-O stretching occurs because the metal occupies an (MO 6 ) octahedral site [32][33][34].…”

Section: Elemental Quanti Cationmentioning

confidence: 99%

Effect of RF magnetron sputtering parameters on the optimization of the discharge capacity of ternary lithium oxide thin films

Lopez

Chagas

Batista

et al. 2021

J Mater Sci: Mater Electron

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The increasing demand for lithium-ion batteries has stimulated the investigation of new compounds in order to reduce the costs and the toxicity of their cathodes. Materials constituted of ternary lithiated oxide compounds are a successful alternative to cobalt-rich cathodes. The main disadvantage of ternary compound materials (TCM) is that the maximum amount of electrical charge is only achieved at high redox potentials, a limiting factor if we consider the current development in electrolyte technology. In this work, we investigated the in uence of sputtering deposition parameters on the charge capacity of TCM thin lms, restraining their electrochemical potential to conventional values. To do so, we analyzed the impact that small changes in crystalline and morphological structures have on the charge capacity at low cell potentials. For this, we performed the RF magnetron sputtering of TCM thin lms, and carried out a factorial design of experiments to investigate their electrochemical properties, while limiting the charging potential to 4.20 V vs. Li|Li + . The lms were deposited onto a rigid and conductive substrate with different parameters (power and pressure at room temperature). Electrochemical results showed that the discharge capacity is strongly in uenced by the deposition parameters, reaching 250 mAh g − 1 even at 4.20 V vs. Li. This value is superior to the ones of the conventional cobalt cathode and the bulk ternary electrode. Both deposition parameters exhibited a synergic dependency, which means that they need to be simultaneously varied for a response optimization. The discharge capacity of the analyzed samples was highly affected by the surface morphology of the lm and its crystallographic properties, and not by its elemental composition. High discharge capacity was obtained without additional thermal treatments, which favors the manufacture of lms over polymeric substrates for future electronic applications.

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Synthesis and characterization of carbon coated LiCo1/3Ni1/3Mn1/3O2 and bio-mass derived graphene like porous carbon electrodes for aqueous Li-ion hybrid supercapacitor

Cited by 24 publications

References 69 publications

NiC₂O₄ ⋅ 2H₂O Nanoflakes: A Novel Redox‐mediated Intercalative Pseudocapacitive Electrode for Supercapacitor Applications in Aqueous KOH and Neutral Na₂SO₄ electrolytes

NiC₂O₄ ⋅ 2H₂O Nanoflakes: A Novel Redox‐mediated Intercalative Pseudocapacitive Electrode for Supercapacitor Applications in Aqueous KOH and Neutral Na₂SO₄ electrolytes

Recent advances in materials and device technologies for aqueous hybrid supercapacitors

Effect of RF magnetron sputtering parameters on the optimization of the discharge capacity of ternary lithium oxide thin films

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Synthesis and characterization of carbon coated LiCo1/3Ni1/3Mn1/3O2 and bio-mass derived graphene like porous carbon electrodes for aqueous Li-ion hybrid supercapacitor

Cited by 24 publications

References 69 publications

NiC2O4 ⋅ 2H2O Nanoflakes: A Novel Redox‐mediated Intercalative Pseudocapacitive Electrode for Supercapacitor Applications in Aqueous KOH and Neutral Na2SO4 electrolytes

NiC2O4 ⋅ 2H2O Nanoflakes: A Novel Redox‐mediated Intercalative Pseudocapacitive Electrode for Supercapacitor Applications in Aqueous KOH and Neutral Na2SO4 electrolytes

Recent advances in materials and device technologies for aqueous hybrid supercapacitors

Effect of RF magnetron sputtering parameters on the optimization of the discharge capacity of ternary lithium oxide thin films

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NiC₂O₄ ⋅ 2H₂O Nanoflakes: A Novel Redox‐mediated Intercalative Pseudocapacitive Electrode for Supercapacitor Applications in Aqueous KOH and Neutral Na₂SO₄ electrolytes

NiC₂O₄ ⋅ 2H₂O Nanoflakes: A Novel Redox‐mediated Intercalative Pseudocapacitive Electrode for Supercapacitor Applications in Aqueous KOH and Neutral Na₂SO₄ electrolytes