Tunable synthesis of LixMnO2 nanowires for aqueous Li-ion hybrid supercapacitor with high rate capability and ultra-long cycle life

Chen, Lina; Chen, Long; Zhai, Wei; Li, Deping; Lin, Yunxiang; Guo, Shirui; Feng, Jinkui; Zhang, Lin; Li, Song; Si, Pengchao; Ci, Lijie

doi:10.1016/j.jpowsour.2018.12.026

Cited by 66 publications

(49 citation statements)

References 57 publications

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“…To further investigate the charge/discharge mechanism of the hybrid cathodes, the contribution ratios of both the diffusion-controlled faradaic process and the capacitive process are analyzed based on the following formula:

where i(V) is the testing current at a certain potential, v is the measured scan rate (mV s −1 ), k 1 v and k 2 v 0.5 are indexes corresponding to the ratios of the capacitive process and the diffusion-controlled faradaic process, respectively [ 30 , 31 , 32 ]. The capacitive contribution profiles at the scan rate of 1 mV s −1 are shown in Figure S5a,b .…”

Section: Resultsmentioning

confidence: 99%

“…where i(V) is the testing current at a certain potential, v is the measured scan rate (mV s −1 ), k 1 v and k 2 v 0.5 are indexes corresponding to the ratios of the capacitive process and the diffusion-controlled faradaic process, respectively [30][31][32]. The capacitive contribution profiles at the scan rate of 1 mV s −1 are shown in Figure S5a,b.…”

Section: Electrochemical Performance As the Cathode In The Half-cellmentioning

confidence: 99%

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Na0.76V6O15/Activated Carbon Hybrid Cathode for High-Performance Lithium-Ion Capacitors

Ren

Wang

et al. 2020

Materials

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Lithium-ion hybrid capacitors (LICs) are regarded as one of the most promising next generation energy storage devices. Commercial activated carbon materials with low cost and excellent cycling stability are widely used as cathode materials for LICs, however, their low energy density remains a significant challenge for the practical applications of LICs. Herein, Na0.76V6O15 nanobelts (NaVO) were prepared and combined with commercial activated carbon YP50D to form hybrid cathode materials. Credit to the synergism of its capacitive effect and diffusion-controlled faradaic effect, NaVO/C hybrid cathode displays both superior cyclability and enhanced capacity. LICs were assembled with the as-prepared NaVO/C hybrid cathode and artificial graphite anode which was pre-lithiated. Furthermore, 10-NaVO/C//AG LIC delivers a high energy density of 118.9 Wh kg−1 at a power density of 220.6 W kg−1 and retains 43.7 Wh kg−1 even at a high power density of 21,793.0 W kg−1. The LIC can also maintain long-term cycling stability with capacitance retention of approximately 70% after 5000 cycles at 1 A g−1. Accordingly, hybrid cathodes composed of commercial activated carbon and a small amount of high energy battery-type materials are expected to be a candidate for low-cost advanced LICs with both high energy density and power density.

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Section: Resultsmentioning

confidence: 99%

Section: Electrochemical Performance As the Cathode In The Half-cellmentioning

confidence: 99%

Na0.76V6O15/Activated Carbon Hybrid Cathode for High-Performance Lithium-Ion Capacitors

Ren

Wang

et al. 2020

Materials

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“…However, the intermittent nature of solar and wind energies greatly hinder their further development (Wang et al, 2019c;Xiao et al, 2019;Yuan et al, 2019;Cheng et al, 2020;Ma J. Q. et al, 2020). Fortunately, electrochemical energy storage (EES) devices are regarded as a promising solution which could store electric energy obtained from renewable energies (Ding et al, 2018;Chen et al, 2019b;Li Y. et al, 2020;Zhang et al, 2019;Wang R. et al, 2020;. Among various EES devices, lithiumion batteries have been intensively investigated and used in many applications such as portable electronics, electrical vehicles, and smart grids due to their high energy density, long cycle life, and environmental benignity (Wang F. et al, 2018;Hao et al, 2019;Liu et al, 2019f;Wu et al, 2019;Zhao Q. et al, 2019;Gao G. J. et al, 2020;Song et al, 2020;Zou et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Application of Manganese-Based Materials in Aqueous Rechargeable Zinc-Ion Batteries

et al. 2020

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In recent years, aqueous rechargeable zinc-ion batteries (AZIBs) have attracted more and more attention not only because they use earth-abundant metals but also due to their improved safety and high volumetric energy density. As one type of promising electrode material for AZIBs, manganese-based materials are receiving considerable attention owing to their high theoretical specific capacity, non-toxicity, and low cost. This mini review summarizes the recent advances on the application of manganesebased materials (manganese oxide, manganate, and their composites) in AZIBs. In addition, the methods to enhance their zinc-ion storage properties are summarized and discussed, such as morphology engineering, doping, as well as compositing with other materials. Ultimately, some personal prospects for future research of the manganese-based materials for AZIBs are also proposed.

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“…Various types of LICs have been developed from hybrid arrangements of battery-type and supercapacitortype electrodes such as Li x MnO 2 //activated carbon (AC) [12], AC//LiNi 0.5 Co 0.2 Mn 0.3 O 2 [13] and Li 4 Ti 5 O 12 //AC [14]. Li et al fabricated LiMn 2 O 4 microspheres//AC LIC [15], which was investigated at a voltage window of 0-2.3 V and yielded a specific energy of 38.8 Wh kg À 1 and specific power of 12.6 W kg À 1 in organic electrolyte.…”

Section: Introductionmentioning

confidence: 99%

Graphene‐functionalised Olivine Lithium Manganese Phosphate Derivatives for High Performance Lithium‐ion Capacitors

et al. 2020

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Lithium manganese phosphate nanoparticles (LiMnPO 4 ; LMP) as well as the nickel-doped (LMNP) and graphenised derivatives (G-LMNP) were synthesized. Electrochemical characteristics of the materials were examined using cyclic voltammetry, electrochemical impedance spectroscopy and galvanostatic charge-discharge. Lithium ion capacitors (LIC) fabricated using LMP and composite materials as positive electrodes and activated carbon as the negative electrode, exhibited a specific capacitance of 60 F g À 1 at a current load of 0.1 A g À 1 for the AC//G-LMNP LIC. Capacitance retention of 83 % was obtained by the AC//G-LMNP LIC after 750 cycles, with a high specific power of 19 kW kg À 1 at 0.5 A g À 1 .

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Tunable synthesis of LixMnO2 nanowires for aqueous Li-ion hybrid supercapacitor with high rate capability and ultra-long cycle life

Cited by 66 publications

References 57 publications

Na0.76V6O15/Activated Carbon Hybrid Cathode for High-Performance Lithium-Ion Capacitors

Na0.76V6O15/Activated Carbon Hybrid Cathode for High-Performance Lithium-Ion Capacitors

Application of Manganese-Based Materials in Aqueous Rechargeable Zinc-Ion Batteries

Graphene‐functionalised Olivine Lithium Manganese Phosphate Derivatives for High Performance Lithium‐ion Capacitors

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