Boosting reaction kinetics and improving long cycle life in lamellar VS2/MoS2 Heterojunctions for superior sodium storage performance

The development of high-performance rechargeable batteries highly depends on the rational structure/phase design of advanced electrode materials. A unique 2D lamellar stacked nanosheet VS2/MoS2 heterostructure is synthesized using a simple...

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Black BiVO4: size tailored synthesis, rich oxygen vacancies, and sodium storage performance

Journal of Materials Chemistry A ◽

10.1039/c9ta13021g ◽

2020 ◽

Vol 8 (4) ◽

pp. 1636-1645 ◽

Cited By ~ 15

Author(s):

Xiaosa Xu ◽

Youxun Xu ◽

Fei Xu ◽

Guangshen Jiang ◽

Jie Jian ◽

...

Keyword(s):

Laser Processing ◽

High Performance ◽

Oxygen Vacancies ◽

Storage Performance ◽

Sodium Storage

Size tailored black BiVO4 colloids with rich oxygen vacancies were generated via facile laser processing for high performance sodium storage.

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High-capacity rechargeable batteries based on deeply cyclable lithium metal anodes

Proceedings of the National Academy of Sciences ◽

10.1073/pnas.1803634115 ◽

2018 ◽

Vol 115 (22) ◽

pp. 5676-5680 ◽

Cited By ~ 92

Author(s):

Qiuwei Shi ◽

Yiren Zhong ◽

Min Wu ◽

Hongzhi Wang ◽

Hailiang Wang

Keyword(s):

High Performance ◽

Electrode Materials ◽

Coulombic Efficiency ◽

High Capacity ◽

Protective Layer ◽

Rechargeable Batteries ◽

Metal Electrodes ◽

Lithium Metal Anodes ◽

Low Efficiency ◽

Almost All

Discovering new chemistry and materials to enable rechargeable batteries with higher capacity and energy density is of paramount importance. While Li metal is the ultimate choice of a battery anode, its low efficiency is still yet to be overcome. Many strategies have been developed to improve the reversibility and cycle life of Li metal electrodes. However, almost all of the results are limited to shallow cycling conditions (e.g., 1 mAh cm−2) and thus inefficient utilization (<1%). Here we achieve Li metal electrodes that can be deeply cycled at high capacities of 10 and 20 mAh cm−2 with average Coulombic efficiency >98% in a commercial LiPF6/carbonate electrolyte. The high performance is enabled by slow release of LiNO3 into the electrolyte and its subsequent decomposition to form a Li3N and lithium oxynitrides (LiNxOy)-containing protective layer which renders reversible, dendrite-free, and highly dense Li metal deposition. Using the developed Li metal electrodes, we construct a Li-MoS3 full cell with the anode and cathode materials in a close-to-stoichiometric amount ratio. In terms of both capacity and energy, normalized to either the electrode area or the total mass of the electrode materials, our cell significantly outperforms other laboratory-scale battery cells as well as the state-of-the-art Li ion batteries on the market.

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Smart hybridization of Sn2Nb2O7/SnO2@3D carbon nanocomposites with enhanced sodium storage performance through self-buffering effects

Journal of Materials Chemistry A ◽

10.1039/c7ta03021e ◽

2017 ◽

Vol 5 (25) ◽

pp. 13052-13061 ◽

Cited By ~ 18

Author(s):

Pengbo Zhai ◽

Jian Qin ◽

Lichao Guo ◽

Naiqin Zhao ◽

Chunsheng Shi ◽

...

Keyword(s):

Anode Material ◽

High Performance ◽

Carbon Nanocomposites ◽

Storage Performance ◽

Carbon Networks ◽

Sodium Storage ◽

Buffering Effects

Mulberry-like Sn2Nb2O7/SnO2nanoparticles homogeneously anchored on 3D carbon networks were prepared as an anode material for high-performance SIBs.

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Boosting High-Rate Zinc-Storage Performance by the Rational Design of Mn2O3 Nanoporous Architecture Cathode

Nano-Micro Letters ◽

10.1007/s40820-019-0351-4 ◽

2019 ◽

Vol 12 (1) ◽

Cited By ~ 9

Author(s):

Danyang Feng ◽

Tu-Nan Gao ◽

Ling Zhang ◽

Bingkun Guo ◽

Shuyan Song ◽

...

Keyword(s):

High Performance ◽

Manganese Oxides ◽

Rational Design ◽

Electrode Materials ◽

Specific Capacity ◽

Rate Capability ◽

High Rate ◽

Pore Sizes ◽

Storage Performance ◽

Zinc Storage

AbstractManganese oxides are regarded as one of the most promising cathode materials in rechargeable aqueous Zn-ion batteries (ZIBs) because of the low price and high security. However, the practical application of Mn2O3 in ZIBs is still plagued by the low specific capacity and poor rate capability. Herein, highly crystalline Mn2O3 materials with interconnected mesostructures and controllable pore sizes are obtained via a ligand-assisted self-assembly process and used as high-performance electrode materials for reversible aqueous ZIBs. The coordination degree between Mn2+ and citric acid ligand plays a crucial role in the formation of the mesostructure, and the pore sizes can be easily tuned from 3.2 to 7.3 nm. Ascribed to the unique feature of nanoporous architectures, excellent zinc-storage performance can be achieved in ZIBs during charge/discharge processes. The Mn2O3 electrode exhibits high reversible capacity (233 mAh g−1 at 0.3 A g−1), superior rate capability (162 mAh g−1 retains at 3.08 A g−1) and remarkable cycling durability over 3000 cycles at a high current rate of 3.08 A g−1. Moreover, the corresponding electrode reaction mechanism is studied in depth according to a series of analytical methods. These results suggest that rational design of the nanoporous architecture for electrode materials can effectively improve the battery performance. "Image missing"

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Ultrathin carbon boosted sodium storage performance in aqueous electrolyte

Functional Materials Letters ◽

10.1142/s1793604720300029 ◽

2020 ◽

Vol 13 (05) ◽

pp. 2030002 ◽

Cited By ~ 2

Author(s):

Xinlong Gao ◽

Wenhui Shi ◽

Pengchao Ruan ◽

Jinxiu Feng ◽

Dong Zheng ◽

...

Keyword(s):

Energy Storage ◽

Transition Metal Oxides ◽

Large Scale ◽

Electrode Materials ◽

High Capacity ◽

Future Research ◽

Energy Storage Devices ◽

Storage Materials ◽

Storage Performance ◽

Sodium Storage

The sodium-based aqueous energy storage devices possess the advantages of low cost, high safety and wide application. However, the low energy density of traditional carbon-based sodium storage materials limits their large-scale application. Besides, other sodium storage materials, such as transition metal oxides, polyanionic compounds and Prussian blue analogues (PBAs), cannot achieve high capacity and stable energy storage performance due to their poor conductivity and instability. Ultrathin carbon with unique characteristics, such as high electrical conductivity, excellent chemical stability, can compensate for the shortcomings of these sodium storage materials. Besides, the arising synergistic effect among ultrathin carbon and active materials is capable of further boosting the performance to achieve robust microstructure, stable electrode/electrolyte interface, high reaction kinetics for obtained composite electrode. This paper summarizes the recently developed strategies to incorporate ultrathin carbon with electrode materials, followed by a discussion of the important role of ultrathin carbon in enhancing sodium storage properties, as well as the future research direction.

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Kirkendall effect modulated hollow red phosphorus nanospheres for high performance sodium-ion battery anodes

Chemical Communications ◽

10.1039/d0cc05087c ◽

2020 ◽

Vol 56 (79) ◽

pp. 11795-11798

Author(s):

Linqin Zhu ◽

Zixuan Zhu ◽

Jianbin Zhou ◽

Yitai Qian

Keyword(s):

Molten Salt ◽

High Performance ◽

Kirkendall Effect ◽

Sodium Ion ◽

Sodium Ion Battery ◽

Red Phosphorus ◽

Storage Performance ◽

Molten Salt Reaction ◽

Sodium Storage

Kirkendall effect mediated hollow red phosphorus nanospheres in a mild molten salt reaction exhibit great sodium storage performance.

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S-doped porous carbon anode with superior capacity for high-performance sodium storage

RSC Advances ◽

10.1039/d0ra02596h ◽

2020 ◽

Vol 10 (38) ◽

pp. 22663-22667

Author(s):

Yaru Liang ◽

Rutie Liu ◽

Xiang Xiong

Keyword(s):

Spray Drying ◽

Porous Carbon ◽

Carbon Material ◽

High Performance ◽

Carbon Anode ◽

Porous Carbon Material ◽

Storage Performance ◽

Sulfur Doping ◽

Sodium Storage

A novel S-doped porous carbon material with superior sodium storage performance was obtained through spray-drying and subsequent sulfur doping treatment.

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Electrochemical Charge Storage Performance of Mesoporous MoO3@Co3O4 Nanocomposites as Electrode Materials

Nanotechnology ◽

10.1088/1361-6528/ac467e ◽

2021 ◽

Author(s):

Dillip Kumar Mohapatra ◽

Swetapadma Praharaj ◽

Dibyaranjan Rout

Keyword(s):

Redox Reactions ◽

High Performance ◽

Electrode Materials ◽

Coulombic Efficiency ◽

Average Pore Size ◽

Electrochemical Capacitors ◽

Bet Surface Area ◽

Average Pore ◽

Storage Performance ◽

Reversible Redox

Abstract Constructing a novel nanocomposite structure based on Co3O4 is of the current interest to design and develop efficient electrochemical capacitors. The capacitive performance of MoO3@Co3O4 nanocomposite is compared with pristine Co3O4 nanoparticles, both of them being synthesized by hydrothermal technique. A BET surface area of ~41 m2g-1 (almost twice that of Co3O4 )and average pore size of 3.6 nm is found to be suitable for promoting Faradaic reactions in the nanocomposite. Electrochemical measurements conducted on both samples predict capacitive behavior with quasi-reversible redox reactions. MoO3@Co3O4 nanocomposite is capable of delivering a superior specific capacitance of 1248 Fg-1 at 0.5 Ag-1 along with notable stability of 92% even after 2000 cycles of charge-discharge and Coulombic efficiency approaching 100% at 10 Ag-1. The outstanding results obtained in this work assure functional adequacy of MoO3@Co3O4 nanocomposite in fabricating high-performance electrochemical capacitors.

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