Flexible α-Fe2O3 nanorod electrode materials for sodium-ion batteries with excellent cycle performance

2018 ◽  
Vol 11 (06) ◽  
pp. 1840002 ◽  
Author(s):  
Depeng Zhao ◽  
Di Xie ◽  
Hengqi Liu ◽  
Fang Hu ◽  
Xiang Wu
Keyword(s):  
Electrochemical Performance ◽  
Flexible Electronics ◽  
Electrode Materials ◽  
Specific Capacity ◽  
Rechargeable Batteries ◽  
Sodium Ion ◽  
Cycle Performance ◽  
Carbon Cloth ◽  
Sodium Ion Batteries ◽  
Performance Measurements

With the rise of flexible electronics, flexible rechargeable batteries have attracted widespread attention as a promising power source in new generation flexible electronic devices. In this work, [Formula: see text]-Fe2O3 nanorods grown on carbon cloth have been synthesized through a facile hydrothermal method as binder-free electrode material. The electrochemical performance measurements show that [Formula: see text]-Fe2O3 nanorods possess high specific capacitance and specific capacity retention of 119% after 100 cycles. The combination of low-cost and excellent electrochemical performance makes [Formula: see text]-Fe2O3 nanorods promising anode materials for sodium-ion batteries.

Electrospun materials for lithium and sodium rechargeable batteries: from structure evolution to electrochemical performance

2015 ◽  
Vol 8 (6) ◽  
pp. 1660-1681 ◽  
Author(s):  
Heng-Guo Wang ◽  
Shuang Yuan ◽  
De-Long Ma ◽  
Xin-Bo Zhang ◽  
Jun-Min Yan
Keyword(s):  
Electrochemical Performance ◽  
Recent Progress ◽  
Electrode Materials ◽  
Rechargeable Batteries ◽  
Sodium Ion ◽  
Structure Evolution ◽  
Sodium Ion Batteries

This review summarizes the recent progress in electrospun electrode materials for lithium- and sodium-ion batteries.

Coupling hierarchical iron cobalt selenide arrays with N-doped carbon as advanced anodes for sodium ion storage

2021 ◽  
Author(s):  
Peijia Wang ◽  
Jiajie Huang ◽  
Jing Zhang ◽  
Liang Wang ◽  
Peiheng Sun ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Sodium Ion ◽  
Carbon Shell ◽  
Carbon Cloth ◽  
Sodium Ion Batteries ◽  
Half Cell ◽  
Iron Cobalt ◽  
Ion Storage ◽  
Cobalt Selenide ◽  
Sodium Ion Storage

Hierarchically core–branched iron cobalt selenide arrays coated with N-doped carbon shell were designed and synthesized on carbon cloth, showing prominent electrochemical performance both in half-cell and full cell sodium ion batteries.

scholarly journals Tin-Decorated Reduced Graphene Oxide and NaLi0.2Ni0.25Mn0.75O as Electrode Materials for Sodium-Ion Batteries

Materials ◽  
2019 ◽  
Vol 12 (7) ◽  
pp. 1074 ◽  
Author(s):  
Pier Paolo Prosini ◽  
Maria Carewska ◽  
Cinzia Cento ◽  
Gabriele Tarquini ◽  
Fabio Maroni ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Electrode Materials ◽  
Specific Capacity ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Organic Precursor ◽  
Functionalized Graphene Oxide ◽  
Sodium Metal ◽  
Reduced Graphene

A tin-decorated reduced graphene oxide, originally developed for lithium-ion batteries, has been investigated as an anode in sodium-ion batteries. The composite has been synthetized through microwave reduction of poly acrylic acid functionalized graphene oxide and a tin oxide organic precursor. The final product morphology reveals a composite in which Sn and SnO2 nanoparticles are homogenously distributed into the reduced graphene oxide matrix. The XRD confirms the initial simultaneous presence of Sn and SnO2 particles. SnRGO electrodes, prepared using Super-P carbon as conducting additive and Pattex PL50 as aqueous binder, were investigated in a sodium metal cell. The Sn-RGO showed a high irreversible first cycle capacity: only 52% of the first cycle discharge capacity was recovered in the following charge cycle. After three cycles, a stable SEI layer was developed and the cell began to work reversibly: the practical reversible capability of the material was 170 mA·h·g−1. Subsequently, a material of formula NaLi0.2Ni0.25Mn0.75O was synthesized by solid-state chemistry. It was found that the cathode showed a high degree of crystallization with hexagonal P2-structure, space group P63/mmc. The material was electrochemically characterized in sodium cell: the discharge-specific capacity increased with cycling, reaching at the end of the fifth cycle a capacity of 82 mA·h·g−1. After testing as a secondary cathode in a sodium metal cell, NaLi0.2Ni0.25Mn0.75O was coupled with SnRGO anode to form a sodium-ion cell. The electrochemical characterization allowed confirmation that the battery was able to reversibly cycle sodium ions. The cell’s power response was evaluated by discharging the SIB at different rates. At the lower discharge rate, the anode capacity approached the rated value (170 mA·h·g−1). By increasing the discharge current, the capacity decreased but the decline was not so pronounced: the anode discharged about 80% of the rated capacity at 1 C rate and more than 50% at 5 C rate.

scholarly journals Nanohollow Carbon for Rechargeable Batteries: Ongoing Progresses and Challenges

2020 ◽  
Vol 12 (1) ◽  
Author(s):  
Jiangmin Jiang ◽  
Guangdi Nie ◽  
Ping Nie ◽  
Zhiwei Li ◽  
Zhenghui Pan ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Carbon Nanostructures ◽  
Active Sites ◽  
Electrode Materials ◽  
Mechanical Stability ◽  
High Surface ◽  
Specific Capacity ◽  
Rate Capability ◽  
Lithium Ion ◽  
Rechargeable Batteries

AbstractAmong the various morphologies of carbon-based materials, hollow carbon nanostructures are of particular interest for energy storage. They have been widely investigated as electrode materials in different types of rechargeable batteries, owing to their high surface areas in association with the high surface-to-volume ratios, controllable pores and pore size distribution, high electrical conductivity, and excellent chemical and mechanical stability, which are beneficial for providing active sites, accelerating electrons/ions transfer, interacting with electrolytes, and giving rise to high specific capacity, rate capability, cycling ability, and overall electrochemical performance. In this overview, we look into the ongoing progresses that are being made with the nanohollow carbon materials, including nanospheres, nanopolyhedrons, and nanofibers, in relation to their applications in the main types of rechargeable batteries. The design and synthesis strategies for them and their electrochemical performance in rechargeable batteries, including lithium-ion batteries, sodium-ion batteries, potassium-ion batteries, and lithium–sulfur batteries are comprehensively reviewed and discussed, together with the challenges being faced and perspectives for them.

scholarly journals Rational Design of Layered SnS2 on Ultralight Graphene Fiber Fabrics as Binder-Free Anodes for Enhanced Practical Capacity of Sodium-Ion Batteries

2019 ◽  
Vol 11 (1) ◽  
Author(s):  
Zongling Ren ◽  
Jie Wen ◽  
Wei Liu ◽  
Xiaoping Jiang ◽  
Yanheng Dong ◽  
...  
Keyword(s):  
Rational Design ◽  
Coulombic Efficiency ◽  
Specific Capacity ◽  
Sodium Ion ◽  
Carbon Cloth ◽  
Sodium Ion Batteries ◽  
Active Components ◽  
Weight Percentage ◽  
Practical Capacity ◽  
Binder Free

Abstract Generally, the practical capacity of an electrode should include the weight of non-active components such as current collector, polymer binder, and conductive additives, which were as high as 70 wt% in current reported works, seriously limiting the practical capacity. This work pioneered the usage of ultralight reduced graphene fiber (rGF) fabrics as conductive scaffolds, aiming to reduce the weight of non-active components and enhance the practical capacity. Ultrathin SnS2 nanosheets/rGF hybrids were prepared and used as binder-free electrodes of sodium-ion batteries (SIBs). The interfused graphene fibers endow the electrode a porous, continuous, and conductive network. The in situ phase transformation from SnO2 to SnS2 could preserve the strong interfacial interactions between SnS2 and graphene. Benefitting from these, the designed binder-free electrode delivers a high specific capacity of 500 mAh g−1 after 500 cycles at a current rate of 0.5 A g−1 with almost 100% Coulombic efficiency. Furthermore, the weight percentage of SnS2 in the whole electrode could reach up to 67.2 wt%, much higher than that of common electrode configurations using Cu foil, Al foil, or carbon cloth, significantly highlighting the ultralight characters and advantages of the rGF fabrics for using as binder-free electrodes of SIBs.

scholarly journals Understanding sodium-ion diffusion in layered P2 and P3 oxides via experiments and first-principles calculations: a bridge between crystal structure and electrochemical performance

2016 ◽  
Vol 8 (4) ◽  
pp. e266-e266 ◽  
Author(s):  
Shaohua Guo ◽  
Yang Sun ◽  
Jin Yi ◽  
Kai Zhu ◽  
Pan Liu ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Electrochemical Performance ◽  
Density Functional ◽  
Electrode Materials ◽  
Rate Capability ◽  
Sodium Ion ◽  
Atomic Scale ◽  
Sodium Ion Batteries ◽  
P Type ◽  
The Relationship

Abstract Layered Na x MeO2 (Me=transition metal) oxides, the most common electrode materials for sodium-ion batteries, fall into different phases according to their stacking sequences. Although the crystalline phase is well known to largely influence the electrochemical performance of these materials, the structure–property relationship is still not fully experimentally and theoretically understood. Herein, a couple consisting of P2-Na0.62Ti0.37Cr0.63O2 and P3-Na0.63Ti0.37Cr0.63O2 materials having nearly the same compositions is reported. The atomic crystal structures and charge compensation mechanism are confirmed by atomic-scale characterizations in the layered P2 and P3 structures, respectively, and notably, the relationship of the crystal structure–electrochemical performance is well defined in the layered P-type structures for the first time in this paper. The electrochemical results suggest that the P2 phase exhibits a better rate capability and cycling stability than the P3 phase. Density functional theory calculations combined with a galvanostatic intermittent titration technique indicates that the P2 phase shows a lower Na diffusion barrier in the presence of multi-Na vacancies, accounting for the better rate capability of the P2 phase. Our results reveal the relationship between the crystal structure and the electrochemical properties in P-type layered sodium oxides, demonstrating the potential for future electrode advancements for applications in sodium-ion batteries.

MoSe2 nanosheets grown on carbon cloth with superior electrochemical performance as flexible electrode for sodium ion batteries

RSC Advances ◽  
2016 ◽  
Vol 6 (2) ◽  
pp. 1440-1444 ◽  
Author(s):  
Yi Zhang ◽  
Zhengqing Liu ◽  
Hongyang Zhao ◽  
Yaping Du
Keyword(s):  
Electrochemical Performance ◽  
Solvothermal Method ◽  
Sodium Ion ◽  
Carbon Cloth ◽  
Sodium Ion Batteries ◽  
Flexible Electrode

A flexible MoSe2/CF composite has been synthesized by a simple solvothermal method.

scholarly journals Highly crystalline nickel hexacyanoferrate as a long-life cathode material for sodium-ion batteries

RSC Advances ◽  
2020 ◽  
Vol 10 (45) ◽  
pp. 27033-27041 ◽  
Author(s):  
Ratul Rehman ◽  
Jian Peng ◽  
Haocong Yi ◽  
Yi Shen ◽  
Jinwen Yin ◽  
...  
Keyword(s):  
Cathode Material ◽  
High Performance ◽  
Electrode Materials ◽  
Rechargeable Batteries ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Nickel Hexacyanoferrate ◽  
Synthesis Strategy ◽  
Prussian Blue Analog ◽  
Long Life

A low-speed synthesis strategy was designed to fabricate Prussian blue analog based electrode materials for high-performance rechargeable batteries.

scholarly journals Solid-State Synthesis of Layered MoS2 Nanosheets with Graphene for Sodium-Ion Batteries

Crystals ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 660
Author(s):  
Ujjwala Chothe ◽  
Chitra Ugale ◽  
Milind Kulkarni ◽  
Bharat Kale
Keyword(s):  
Electrode Materials ◽  
Low Cost ◽  
Electronic Conductivity ◽  
Specific Capacity ◽  
Sodium Ion ◽  
High Yield ◽  
Hybrid Architecture ◽  
Sodium Ion Batteries ◽  
Mos2 Nanosheets ◽  
Layered Mos2

Sodium-ion batteries have potential as energy-storage devices owing to an abundant source with low cost. However, most electrode materials still suffer from poor conductivity, sluggish kinetics, and huge volume variation. It is still challenging to explore apt electrode materials for sodium-ion battery applications to avoid the pulverization of electrodes induced by reversible intercalation of large sodium ions. Herein, we report a single-step facile, scalable, low-cost, and high-yield approach to prepare a hybrid material; i.e., MoS2 with graphene (MoS2-G). Due to the space-confined effect, thin-layered MoS2 nanosheets with a loose stacking feature are anchored with the graphene sheets. The semienclosed hybrid architecture of the electrode enhances the integrity and stability during the intercalation of Na+ ions. Particularly, during galvanostatic study the assembled Na-ion cell delivered a specific capacity of 420 mAhg−1 at 50 mAg−1, and 172 mAhg−1 at current density 200 mAg−1 after 200 cycles. The MoS2-G hybrid excels in performance due to residual oxygen groups in graphene, which improves the electronic conductivity and decreases the Na+ diffusion barrier during electrochemical reaction, in comparison with a pristine one.

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