Hierarchical nanoarray materials for advanced nickel–zinc batteries

Lu, Zhiyi; Wu, Xiaochao; Lei, Xiaodong; Li, Yaping; Sun, Xiaoming

doi:10.1039/c4qi00143e

Cited by 98 publications

(54 citation statements)

References 34 publications

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“…Figure presents the Ragone plots comparing the energy and power densities of our P–NiCo 2 O 4‐ x //Zn battery with those of other reported aqueous batteries and SCs. Encouragingly, a remarkable energy density of 616.5 Wh kg −1 (0.407 mWh cm −2 ) at a power density of 5.15 kW kg −1 (3.40 mW cm −2 ; based on the mass of the P–NiCo 2 O 4‐ x cathode) was achieved by the P–NiCo 2 O 4‐ x //Zn battery, surpassing many of the recently reported Zn‐ion batteries and other aqueous batteries, such as Al//graphite Al‐ion battery (40 Wh kg −1 at 3.0 kW kg −1 ), NiCo 2 O 4 //Bi battery (58 Wh kg −1 at 21.2 kW kg −1 ), Ni//Fe battery (100.7 Wh kg −1 at 0.287 kW kg −1 ), NNA@CNH//NNA@Zn battery (138 Wh kg −1 at 1.72 kW kg −1 ), NiCo 2 O 4 //Zn battery (210.7 Wh kg −1 at 19.5 kW kg −1 ), Co 3 O 4 @NiO//Zn battery (215.5 Wh kg −1 at 3.45 kW kg −1 ), NiAlCo/CNT//Zn battery (274 Wh kg −1 at 16.6 kW kg −1 ), CF@NiO//CF@ZnO battery (330.8 Wh kg −1 at 8.0 kW kg −1 ), and MnO 2 @PEDOT//Zn battery (599.8 Wh kg −1 at 1.34 kW kg −1 ) . Furthermore, a maximum power density of 30.2 kW kg −1 is also delivered by our battery, even higher than many of the recently reported SCs, such as the β‐Co(OH) 2 //graphite ASC (17.98 kW kg −1 ) and the Co 3 O 4 @CoMoO 4 ASC (6.4 kW kg −1 ), manifesting the rapid charge–discharge properties of the P–NiCo 2 O 4‐ x //Zn battery.…”

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confidence: 94%

Oxygen‐Vacancy and Surface Modulation of Ultrathin Nickel Cobaltite Nanosheets as a High‐Energy Cathode for Advanced Zn‐Ion Batteries

et al. 2018

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The development of high-capacity, Earth-abundant, and stable cathode materials for robust aqueous Zn-ion batteries is an ongoing challenge. Herein, ultrathin nickel cobaltite (NiCo O ) nanosheets with enriched oxygen vacancies and surface phosphate ions (P-NiCo O ) are reported as a new high-energy-density cathode material for rechargeable Zn-ion batteries. The oxygen-vacancy and surface phosphate-ion modulation are achieved by annealing the pristine NiCo O nanosheets using a simple phosphating process. Benefiting from the merits of substantially improved electrical conductivity and increased concentration of active sites, the optimized P-NiCo O nanosheet electrode delivers remarkable capacity (309.2 mAh g at 6.0 A g ) and extraordinary rate performance (64% capacity retention at 60.4 A g ). Moreover, based on the P-NiCo O cathode, our fabricated P-NiCo O //Zn battery presents an impressive specific capacity of 361.3 mAh g at the high current density of 3.0 A g in an alkaline electrolyte. Furthermore, extremely high energy density (616.5 Wh kg ) and power density (30.2 kW kg ) are also achieved, which outperforms most of the previously reported aqueous Zn-ion batteries. This ultrafast and high-energy aqueous Zn-ion battery is promising for widespread application to electric vehicles and intelligent devices.

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confidence: 94%

Oxygen‐Vacancy and Surface Modulation of Ultrathin Nickel Cobaltite Nanosheets as a High‐Energy Cathode for Advanced Zn‐Ion Batteries

et al. 2018

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“…In this work, we design a simple, efficient and scalable approach to prepare nitrogen (N) and phosphorus (P) codoped vertical graphene arrays (N, P‐VG) on a 3D CC substrate (N, P‐VG@CC) as a flexible binder‐free anode for high performance KIBs. Because the inherent advantages of robust flexibility, high mechanical strength, and outstanding electrical conductivity, the CC as current collector has been widely used to prepare 3D electrodes and holds great potential for flexible energy storage . Herein, the as‐prepared N, P‐VG@CC electrode exhibits remarkable large capacity, outstanding rate capability, and remarkable cycle stability due to the large surface, sufficient active sites, enhanced electronic and ionic conductivities, and increased interlayer distance.…”

Section: Introductionmentioning

confidence: 99%

Nitrogen and Phosphorus Codoped Vertical Graphene/Carbon Cloth as a Binder‐Free Anode for Flexible Advanced Potassium Ion Full Batteries

Qiu

Xiao²,

Liu³

et al. 2019

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and widespread use. [6,7] As an alternative, metal ion batteries, including aluminum ion batteries, [8,9] sodium ion batteries, [10,11] magnesium ion batteries, [12,13] and potassium ion batteries (KIBs) [14][15][16][17][18][19][20][21][22] have aroused much interests owing to their low cost, environmental friendliness, and high energy density. Among the metal ion batteries studied, KIBs came into spotlight recently, combining the merits such as abundant resources, cost-effective, as well as the relatively low redox potential (2.92 V vs standard hydrogen electrode (SHE)). [23][24][25][26] As a new energy storage technology, KIBs have attracted worldwide attention due to their high energy density, cost-effective, good reliability, and environmental friendliness. However, it is generally known that the radius of potassium ions is as large as 0.38 nm, which will make the insertion/ extraction difficult during the electrochemical reaction, resulting in lousy capacity, bad rate performance, and short cycle lives in KIBs. [18,27] Furthermore, using additives and metal current collectors will block the active sites, slowdown the electron/ion transport, decrease the flexibility and energy density of the whole battery. In addition, the energy density, power density, as well as cycle life of KIBs are still unsatisfactory. [17,[19][20][21] Hence, development of advanced electrode materials and design of appropriate structures for KIBs are urgently desirable but remain a great challenge.In this spirit, only within the past year have studies emerged demonstrating that the potassium could form KC 8 with graphite, and undergo reversible insertion and extraction. [27][28][29][30][31] For anode electrodes, graphite appears to be one of the most promising due to their high electronic conductivity, rational potassium storage capability, and low cost. [19,22,27,[32][33][34] Although graphite has been investigated as KIBs anode and made some achievements, the rate capability and cyclic performance are still far from satisfactory, which can be attributed the large volume change of graphite and low diffusion kinetics of potassium ion during intercalation/deintercalation. [16,27] Instead, the graphene has a single or multilayer structure, which is beneficial for alkali metal ion insertion/extraction and surface storage. [22,28,31,[35][36][37][38][39] Moreover, the wrinkle structure of graphene can accommodate volume change of charge/ discharge process to retain the structure stability of materials. [40][41][42][43][44] Furthermore, by adjusting the electronic structure, active sites and interlayer With the fast development in flexible electronic technology, power supply devices with high performance, low-cost, and flexibility are becoming more and more important. Potassium ion batteries (KIBs) have a brilliant prospect for applications benefiting from high voltage, lost cost, as well as similar electrochemistry to lithium ion batteries (LIBs). Although carbon materials have been studied as KIBs anodes, their rate capability and cycling ...

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“…Hierarchically nanostructured TMOs reviewed in this paper also can be applied in aqueous batteries [186]. This is also a very important research direction.…”

Section: Conclusion and Outlooksmentioning

confidence: 97%

“…(6) Aqueous rechargeable batteries, such as Ni-Zn battery, Ni-MH battery, and Ni-Fe battery, have attracted renewed interest because of their high theoretical energy density, long cycling life, low cost, and safety [186]. Hierarchically nanostructured TMOs reviewed in this paper also can be applied in aqueous batteries [186].…”

Section: Conclusion and Outlooksmentioning

confidence: 99%

Hierarchically nanostructured transition metal oxides for supercapacitors

et al. 2017

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Hierarchical nanoarray materials for advanced nickel–zinc batteries

Abstract: Due to the unique structural advantages, hierarchical Co3O4@NiO nanoarrays can be regarded as advanced electrodes for Ni–Zn batteries.

Cited by 98 publications

References 34 publications

Oxygen‐Vacancy and Surface Modulation of Ultrathin Nickel Cobaltite Nanosheets as a High‐Energy Cathode for Advanced Zn‐Ion Batteries

Oxygen‐Vacancy and Surface Modulation of Ultrathin Nickel Cobaltite Nanosheets as a High‐Energy Cathode for Advanced Zn‐Ion Batteries

Nitrogen and Phosphorus Codoped Vertical Graphene/Carbon Cloth as a Binder‐Free Anode for Flexible Advanced Potassium Ion Full Batteries

Hierarchically nanostructured transition metal oxides for supercapacitors

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