Patterned anodes with an activated carbon nanotube protective layer for zinc-ion hybrid capacitors

Heo, Ho Jin; Yun, Kihyuk; An, Geon‐Hyoung

doi:10.1016/j.jallcom.2023.171229

Cited by 14 publications

(5 citation statements)

References 39 publications

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“…As presented in CV curves in Figure g, the integrated peak area of the symmetric (002) Zn@Zn//(002) Zn@Zn cell is larger than that of the symmetric Zn//Zn cell, indicating improved electrochemical redox activity for Zn deposition . Moreover, the current changes on the CA curve are related to the Zn deposition mode. , As shown in Figure h, the current of the symmetric Zn//Zn cell increases at an overpotential of 200 mV with a deposition time of 400 s, demonstrating the rapid two-dimensional (2D) diffusion of Zn 2+ on the surface of pure Zn. By comparison, after a short 2D diffusion and nucleation, the symmetric (002) Zn@Zn//(002) Zn@Zn cell exhibits a stable three-dimensional (3D) diffusion process, which indicates that the (002) Zn@Zn anode promotes uniform nucleation of Zn 2+ and inhibits the formation of Zn dendrites. , Additionally, the lower NOP of symmetric (002) Zn@Zn//(002) Zn@Zn compared to the Zn//Zn cell at varying current densities implies a lower energy barrier for Zn 2+ deposition, indicating faster and easier Zn 2+ deposition (Figure S8 of the Supporting Information).…”

Section: Resultsmentioning

confidence: 87%

“…54 Moreover, the current changes on the CA curve are related to the Zn deposition mode. 55,56 As shown in Figure 3h, the current of the symmetric Zn//Zn cell increases at an overpotential of 200 mV with a deposition time of 400 s, demonstrating the rapid twodimensional (2D) diffusion of Zn 2+ on the surface of pure Zn. By comparison, after a short 2D diffusion and nucleation, the symmetric (002) Zn@Zn//(002) Zn@Zn cell exhibits a stable three-dimensional (3D) diffusion process, which indicates that the (002) Zn@Zn anode promotes uniform nucleation of Zn 2+ and inhibits the formation of Zn dendrites.…”

Section: ■ Results and Discussionmentioning

confidence: 90%

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Effective Orientation Control of the Zinc Anode for High-Performance Aqueous Zinc-Ion Batteries: A Key Approach To Address Dendrite Growth and Side Reactions

Xin,

Qi,

et al. 2024

Energy Fuels

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Aqueous zinc-ion batteries (AZIBs) are promising candidates for next-generation electrochemical energy storage systems owing to their abundant resources, high safety, great theoretical capacity, and environmental friendliness. Nonetheless, instability of Zn metal anodes caused by Zn dendrites and various side reactions poses a challenge to their practical feasibility. Optimizing the crystallographic orientation of the Zn metal anodes is demonstrated as a potential approach for solving these issues of AZIBs. Herein, we report an electrodeposition strategy to manipulate the exposure of the preferred (002) crystal planes in the artificial interface layer on Zn foil via adjustment of the electrodeposition current density and time. The (002)oriented Zn metal anodes with an impressive 97.55% relative texture coefficient (RTC) value of (002) and ultrahigh I (002) /I (100) ratio of 310.23 were achieved through electrodeposition at a moderate current density of 30 mA cm −2 and electrodeposition time of 30 min, applicable to large-scale industrial production. The enhanced wettability of the designed (002) Zn@Zn anodes in electrolytes along with the low charge transfer resistance facilitates the migration of Zn 2+ and guides the uniform Zn deposition, thereby inhibiting the dendrite growth and byproduct formation and promoting fast kinetics. In comparison to (101)-oriented pure Zn, the symmetric cell based on (002) Zn@Zn anodes exhibits ultrastable cycling for 3200 h at 1.0 mA cm −2 , and the half-cell presents an average coulombic efficiency of 99.76% throughout the entire 3000 cycles at 5.0 mA cm −2 . The full cell with a bismuth-doped manganese dioxide cathode exhibits an ultrastable cycling performance over 3500 cycles even at 10 C. This work proposes a strategy to regulate the preferred orientation of high-performance Zn anodes for advanced AZIBs.

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Section: Resultsmentioning

confidence: 87%

Section: ■ Results and Discussionmentioning

confidence: 90%

Effective Orientation Control of the Zinc Anode for High-Performance Aqueous Zinc-Ion Batteries: A Key Approach To Address Dendrite Growth and Side Reactions

Xin,

Qi,

et al. 2024

Energy Fuels

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“…Green energy utilization, storage, and conversion, which are closely related to sustainable societal development and play key roles in the overall energy balance, − require the development of efficient energy storage and conversion technologies. − To that end, supercapacitors have been widely studied because they exhibit high power densities and good cycling performance, , are safe to operate, and have low environmental impact. , These attributes represent distinct advantages that promote their utilization. − However, supercapacitors exhibit unsuitable low energy densities. Compared to lithium-ion batteries as a competing energy-storage technology, supercapacitors have two main disadvantages: − (1) low energy densities (≤15 Wh kg –1 ), equivalent to approximately 5% of that exhibited by typical lithium-ion batteries, and (2) high costs, i.e., approximately 20 times more expensive per unit energy density than lithium-ion batteries.…”

Section: Introductionmentioning

confidence: 99%

High-Performance Zinc-Ion Hybrid Supercapacitor from Guilin Sanhua Liquor Lees-Derived Carbon Materials

Jiang,

Yao,

Peng

et al. 2024

ACS Appl. Mater. Interfaces

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Aqueous zinc-ion hybrid supercapacitors (ZHSCs) have attracted considerable attention because they are inexpensive and safe. However, the inadequate energy densities, power densities, and cycling performance of current ZHSC energystorage devices are impediments that need to be overcome to enable the further development and commercialization of this technology. To address these issues, in this study, we prepared carbon-based ZHSCs using a series of porous carbon materials derived from Sanhua liquor lees (SLPCs). Among them, the best performance was observed for SLPC-A13, which exhibited excellent properties and a high-surface-area structure (2667 m 2 g −1 ) with abundant micropores. The Zn//SLPC-A13 device was assembled by using 2 mol L −1 ZnSO 4 , SLPC-A13, and Zn foil as the electrolyte, cathode, and anode, respectively. The Zn//SLPC-A13 device delivered an ultrahigh energy density of 137 Wh kg −1 at a power density of 462 W kg −1 . Remarkably, Zn//SLPC-A13 retained 100% of its specific capacitance after 120,000 cycles of longterm charge/discharge testing, with 62% retained after 250,000 cycles. This outstanding performance is primarily attributed to the SLPC-A13 carbon material, which promotes the rapid adsorption and desorption of ions, and the charge−discharge process, which roughens the Zn anode in a manner that improves reversible Zn-ion plating/stripping efficiency. This study provides ideas for the preparation of ZHSC cathode materials.

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“…Although their energy capacity is inferior to batteries, super-capacitors have other attractive properties as they enable high-speed energy delivery, faster charge–discharge speeds, longer lifetimes, and reusability [ 17 ]. Classical super-capacitors are often made from activated carbon [ 18 ] and often produced from renewable sources [ 19 ]. Electrodes made from activated carbon enable a large surface–mass ratio and thus a specific capacitance [ 20 ], but the rather inadequate electrical conductivity of activated carbon limits power density and prevents fast charging–discharging.…”

Section: Introductionmentioning

confidence: 99%

Evolution of the Surface Wettability of Vertically Oriented Multilayer Graphene Sheets Deposited by Plasma Technology

Paul,

Zaplotnik,

Primc

et al. 2024

Nanomaterials

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Carbon deposits consisting of vertically oriented multilayer graphene sheets on metallic foils represent an interesting alternative to activated carbon in electrical and electrochemical devices such as super-capacitors because of the superior electrical conductivity of graphene and huge surface–mass ratio. The graphene sheets were deposited on cobalt foils by plasma-enhanced chemical vapor deposition using propane as the carbon precursor. Plasma was sustained by an inductively coupled radiofrequency discharge in the H mode at a power of 500 W and a propane pressure of 17 Pa. The precursor effectively dissociated in plasma conditions and enabled the growth of porous films consisting of multilayer graphene sheets. The deposition rate varied with time and peaked at 100 nm/s. The evolution of surface wettability was determined by the sessile drop method. The untreated substrates were moderately hydrophobic at a water contact angle of about 110°. The contact angle dropped to about 50° after plasma treatment for less than a second and increased monotonously thereafter. The maximal contact angle of 130° appeared at a treatment time of about 30 s. Thereafter, it slowly decreased, with a prolonged deposition time. The evolution of the wettability was explained by surface composition and morphology. A brief treatment with oxygen plasma enabled a super-hydrophilic surface finish of the films consisting of multilayer graphene sheets.

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Patterned anodes with an activated carbon nanotube protective layer for zinc-ion hybrid capacitors

Cited by 14 publications

References 39 publications

Effective Orientation Control of the Zinc Anode for High-Performance Aqueous Zinc-Ion Batteries: A Key Approach To Address Dendrite Growth and Side Reactions

Effective Orientation Control of the Zinc Anode for High-Performance Aqueous Zinc-Ion Batteries: A Key Approach To Address Dendrite Growth and Side Reactions

High-Performance Zinc-Ion Hybrid Supercapacitor from Guilin Sanhua Liquor Lees-Derived Carbon Materials

Evolution of the Surface Wettability of Vertically Oriented Multilayer Graphene Sheets Deposited by Plasma Technology

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