Enhancing rate capability of amorphous nickel phosphate supercapattery electrode via composition with crystalline silver phosphate

Omar, Fatin Saiha; Numan, Arshid; Bashir, Shahid; Duraisamy, Navaneethan; Vikneswaran, R.; Loo, Yueh‐Lin; Ramesh, K.

doi:10.1016/j.electacta.2018.03.136

Cited by 138 publications

(64 citation statements)

References 62 publications

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“… 3D flowerlike sheets-assembled hydration nickel phosphate (N-90)║rGO 1 A g −1 3 M KOH 183.45 F g −1 1.5 V 25.48 Wh kg −1 750.02 W kg −1 84.23% after 1000 cycles [ 227 ] 27. Ni 3 (PO 4 ) 2 –Ag 3 PO 4 ║AC 0.5 A g −1 1 M KOH 91.25 F g −1 1.6 V 32.4 Wh kg −1 399.5 W kg −1 82% after 5000 cycles [ 228 ] 28. Cobalt phosphate║AC 0.9 A g −1 3 M KOH 107.7 F g −1 1.5 V 43.2 Wh kg −1 5.8 kW kg −1 68% after 10,000 cycles [ 229 ] 29.…”

Section: Advancement In Supercapattery Researchmentioning

confidence: 99%

Comprehensive Insight into the Mechanism, Material Selection and Performance Evaluation of Supercapatteries

et al. 2020

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HIGHLIGHTS• This article reviewed the recent progress on material challenges, charge storage mechanism, and electrochemical performance evaluation of supercapatteries.• Supercapatteries bridge the gap between supercapacitors (low energy density) and batteries (low power density). Fig. 1 a Ragone plot of various electrochemical energy conversion and storage devices [43]. b Schematic illustration of charge storage mechanism of EDL capacitor in porous carbon electrode. c Representation of EDLC structures: Helmholtz model, Gouy-Chapman model and Gouy-Chapman-Stern model. Schematic representation of the charge storage mechanisms in pseudocapacitor; d Intercalation (bulk redox) and e surface redox Nano-Micro Lett.(2020) 12:85Page 5 of 46 85 Table 1 Classification of various energy storage devices according to their charge storage mechanisms NFCS non-Faradaic capacitive storage = EDLC storage, CFS capacitive Faradaic storage = pseudocapacitive storage, NCFS non-capacitive Faradaic storage = battery-type storage Device Supercapattery Battery Supercapacitor Hybrid supercapacitor EDLC Pseudocapacitors

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Section: Advancement In Supercapattery Researchmentioning

confidence: 99%

Comprehensive Insight into the Mechanism, Material Selection and Performance Evaluation of Supercapatteries

et al. 2020

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“…The Ragone plot is presented to demonstrate the trend of power density ( P ) and energy density ( E ) as indicated in Figure 13 a. The E and P were evaluated using Equations (3) and (4), respectively [ 46 ].

where,

measured in C g −1 stands for the specific capacity, ΔV measured in volts symbolizes the applied potential, and

measured in seconds shows the total time taken for complete discharge.…”

Section: Electrochemical Performance Of Assembled Ag/co mentioning

confidence: 99%

Cobalt Oxide Nanograins and Silver Nanoparticles Decorated Fibrous Polyaniline Nanocomposite as Battery-Type Electrode for High Performance Supercapattery

et al. 2020

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In this study, silver (Ag) and cobalt oxide (Co3O4) decorated polyaniline (PANI) fibers were prepared by the combination of in-situ aniline oxidative polymerization and the hydrothermal methodology. The morphology of the prepared Ag/Co3O4@PANI ternary nanocomposite was studied by scanning electron microscopy and transmission electron microscopy, while the structural studies were carried out by X-ray diffraction and X-ray photoelectron spectroscopy. The morphological characterization revealed fibrous shaped PANI, coated with Ag and Co3O4 nanograins, while the structural studies revealed high purity, good crystallinity, and slight interactions among the constituents of the Ag/Co3O4@PANI ternary nanocomposite. The electrochemical performance studies revealed the enhanced performance of the Ag/Co3O4@PANI nanocomposite due to the synergistic/additional effect of Ag, Co3O4 and PANI compared to pure PANI and Co3O4@PANI. The addition of the Ag and Co3O4 provided an extended site for faradaic reactions leading to the high specific capacity. The Ag/Co3O4@PANI ternary nanocomposite exhibited an excellent specific capacity of 262.62 C g−1 at a scan rate of 3 mV s−1. The maximum energy and power density were found to be 14.01 Wh kg−1 and 165.00 W kg−1, respectively. The cyclic stability of supercapattery (Ag/Co3O4@PANI//activated carbon) consisting of a battery type electrode demonstrated a gradual increase in specific capacity with a continuous charge–discharge cycle until ~1000 cycles, then remained stable until 2500 cycles and later started decreasing, thereby showing the cyclic stability of 121.03% of its initial value after 3500 cycles.

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“…Compared to EDLCs, the pseudocapacitor demonstrates better energy storage performance and exhibits higher specific capacitance 11‐14 . The EDLCs also lack behind in practical applications due to their low specific energy (SE) 15‐17 . In the case of lithium‐ion batteries, in which noncarbonaceous materials are used as an electrode material, exhibits high SE but have low specific power (SP) and life cycle stability due to continuous redox faradic reactions 18 .…”

Section: Introductionmentioning

confidence: 99%

Green synthesis of nickel‐manganese/polyaniline‐based ternary composites for high‐performance supercapattery devices

2021

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Summary The study divulges formation of nickel‐manganese phosphate and polyaniline (NiMn(PO4)2‐PANI)‐based ternary composites at different aspect ratios, synthesized via facile sonochemical method. The composite is utilized for high‐performance energy storage applications. The composite with 30 wt% PANI depicts the best electrochemical performance with maximum specific capacity (Qs) of 847 C g−1 at 0.5 A g−1 in three‐electrode assembly. The supercapattery device is assembled by utilizing NiMn(PO4)2‐PANI and activated carbon. The supercapattery demonstrates outstanding performance by delivering a remarkable specific energy of 71.3 Wh kg−1, and the maximum specific power is 12 686 W kg−1 and capacity retention of 97.6% after 5000 GCD series. Furthermore, the diffusive and capacitive mechanism is evaluated by applying Dunn's model. The b values are calculated to confirm the hybrid nature of the device. The study depicts the potentials of reported ternary composites as self‐supported electrode materials in the development of cost‐effective and efficient energy storage system.

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Enhancing rate capability of amorphous nickel phosphate supercapattery electrode via composition with crystalline silver phosphate

Cited by 138 publications

References 62 publications

Comprehensive Insight into the Mechanism, Material Selection and Performance Evaluation of Supercapatteries

Comprehensive Insight into the Mechanism, Material Selection and Performance Evaluation of Supercapatteries

Cobalt Oxide Nanograins and Silver Nanoparticles Decorated Fibrous Polyaniline Nanocomposite as Battery-Type Electrode for High Performance Supercapattery

Green synthesis of nickel‐manganese/polyaniline‐based ternary composites for high‐performance supercapattery devices

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