scholarly journals High-Entropy-Stabilized Polyanionic Cathodes with Multiple Redox Reactions for Sodium-Ion Battery Applications

2022 ◽  
Author(s):  
Huangxu Li ◽  
Ming Xu ◽  
Huiwu Long ◽  
Jingqiang Zheng ◽  
Kuo Yuan ◽  
...  
Keyword(s):  
High Performance ◽  
Spherical Aberration ◽  
Sol Gel ◽  
High Capacity ◽  
Substantial Improvement ◽  
Sodium Ion ◽  
High Rate ◽  
High Entropy ◽  
In Situ Xrd ◽  
Na Ions

Abstract High-entropy (HE) materials containing multiple elements have created a growing interest in exploring the property limits of electrodes in energy storage and understanding the underlying chemical/physical mechanisms. Here, we show a substantial improvement in performance of HE-based cathodes in sodium-ion batteries (SIBs). Polyanionic structure has a large compositional flexibility and can incorporate many active transition-metal (TM) species, which is an ideal platform to design HE cathode materials. As a proof of concept, we show that HE sodium superionic conductor (HE-NASICON) materials can be synthesized via a facile sol-gel method. By comparing a group of HE-NASICON cathodes containing different contents of TM species, we demonstrate that the multi-Na-ions intercalation/deintercalation process is highly reversible, whereas capacity and cycling stability are improved. The HE-NASICON cathode with equal molarity of five TM species achieves a high capacity of 161 mA h g−1 and capacity retention of 85% when cycling at a high rate of 5 C over 1000 cycles. In-situ XRD and spherical-aberration-corrected transmission electron microscope (ACTEM) also demonstrate a robust trigonal phase with a volume change of merely 4.07% during the multi-Na-ions storage. These results reveal the effectiveness of HE concept in expediting high-performance polyanionic cathodes for real SIBs applications.

Exfoliated-SnS2 restacked on graphene as a high-capacity, high-rate, and long-cycle life anode for sodium ion batteries

Nanoscale ◽  
2015 ◽  
Vol 7 (4) ◽  
pp. 1325-1332 ◽  
Author(s):  
Yongchang Liu ◽  
Hongyan Kang ◽  
Lifang Jiao ◽  
Chengcheng Chen ◽  
Kangzhe Cao ◽  
...  
Keyword(s):  
Hydrothermal Method ◽  
High Performance ◽  
High Capacity ◽  
Cycle Life ◽  
Sodium Ion ◽  
High Rate ◽  
Sodium Ion Batteries ◽  
Facile Hydrothermal Method ◽  
Long Cycle Life ◽  
Hydrolysis Of

Designed as a high-performance anode for sodium-ion batteries, exfoliated-SnS2 restacked on graphene was prepared by the hydrolysis of lithiated-SnS2 followed by a facile hydrothermal method.

Auto-generated iron chalcogenide microcapsules ensure high-rate and high-capacity sodium-ion storage

Nanoscale ◽  
2018 ◽  
Vol 10 (2) ◽  
pp. 800-806 ◽  
Author(s):  
Xusheng Wang ◽  
Zhanhai Yang ◽  
Chao Wang ◽  
Luxiang Ma ◽  
Chunsong Zhao ◽  
...  
Keyword(s):  
Solid State ◽  
Solid State Reaction ◽  
High Performance ◽  
High Capacity ◽  
Sodium Ion ◽  
High Rate ◽  
Iron Chalcogenide ◽  
Ion Storage ◽  
Sodium Ion Storage

FeSe@FeS microcapsules are auto-generated through a facile solid-state reaction, ensuring a high-performance sodium-ion half/full battery.

Electrospun graphene-wrapped Na6.24Fe4.88(P2O7)4 nanofibers as a high-performance cathode for sodium-ion batteries

2017 ◽  
Vol 19 (26) ◽  
pp. 17270-17277 ◽  
Author(s):  
Yubin Niu ◽  
Maowen Xu ◽  
Chunlong Dai ◽  
Bolei Shen ◽  
Chang Ming Li
Keyword(s):  
Discharge Capacity ◽  
High Performance ◽  
Electronic Conductivity ◽  
Sodium Ion ◽  
High Rate ◽  
Sodium Ion Batteries ◽  
Rate Discharge ◽  
High Rate Discharge

Na6.24Fe4.88(P2O7)4 is one of the intensively investigated polyanionic compounds and has shown high rate discharge capacity, but its relatively low electronic conductivity hampers the high performance of the batteries.

scholarly journals Nanostructured intermetallic InSb as a high-capacity and high-performance negative electrode for sodium-ion batteries

2021 ◽  
Author(s):  
Irshad Mohammad ◽  
Lucie Blondeau ◽  
Eddy Foy ◽  
Jocelyne Leroy ◽  
Eric Leroy ◽  
...  
Keyword(s):  
Intermetallic Compound ◽  
High Performance ◽  
High Capacity ◽  
Negative Electrode ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Negative Electrodes ◽  
First Time

Following the trends of alloys as negative electrodes for Na-ion batteries, the sodiation of the InSb intermetallic compound was investigated for the first time. The benefit of coupling Sb with...

A high performance sulfur-doped disordered carbon anode for sodium ion batteries

2015 ◽  
Vol 8 (10) ◽  
pp. 2916-2921 ◽  
Author(s):  
Wei Li ◽  
Min Zhou ◽  
Haomiao Li ◽  
Kangli Wang ◽  
Shijie Cheng ◽  
...  
Keyword(s):  
High Performance ◽  
High Capacity ◽  
Sodium Ion ◽  
Carbon Anode ◽  
Sodium Ion Batteries ◽  
Disordered Carbon

Sulfur-doped disordered carbon exhibits high capacity and excellent cyclability as an anode for sodium ion batteries.

scholarly journals Borophene as a promising anode material for sodium-ion batteries with high capacity and high rate capability using DFT

RSC Advances ◽  
2018 ◽  
Vol 8 (32) ◽  
pp. 17773-17785 ◽  
Author(s):  
Jianhua Liu ◽  
Cheng Zhang ◽  
Lei Xu ◽  
Shaohua Ju
Keyword(s):  
Vapor Deposition ◽  
High Capacity ◽  
Rate Capability ◽  
Chemical Vapor ◽  
Sodium Ion ◽  
High Rate ◽  
Chemical Vapor Deposition Method ◽  
Sodium Ion Batteries ◽  
Light Weight ◽  
High Rate Capability

Two-dimensional boron synthesized by the chemical vapor deposition method is an atomically thin layer of boron with both light weight and metallicity.

scholarly journals Sandwiching Sulfur into the Dents Between N, O Co-Doped Graphene Layered Blocks with Strong Physicochemical Confinements for Stable and High-Rate Li–S Batteries

2020 ◽  
Vol 12 (1) ◽  
Author(s):  
Mengjiao Shi ◽  
Su Zhang ◽  
Yuting Jiang ◽  
Zimu Jiang ◽  
Longhai Zhang ◽  
...  
Keyword(s):  
High Performance ◽  
High Capacity ◽  
High Rate ◽  
Graphene Sheets ◽  
Rate Performance ◽  
Shuttle Effect ◽  
Lithium Sulfur Batteries ◽  
Doped Graphene ◽  
Sulfur Host ◽  
Co Doped

AbstractThe development of lithium–sulfur batteries (LSBs) is restricted by their poor cycle stability and rate performance due to the low conductivity of sulfur and severe shuttle effect. Herein, an N, O co-doped graphene layered block (NOGB) with many dents on the graphene sheets is designed as effective sulfur host for high-performance LSBs. The sulfur platelets are physically confined into the dents and closely contacted with the graphene scaffold, ensuring structural stability and high conductivity. The highly doped N and O atoms can prevent the shuttle effect of sulfur species by strong chemical adsorption. Moreover, the micropores on the graphene sheets enable fast Li+ transport through the blocks. As a result, the obtained NOGB/S composite with 76 wt% sulfur content shows a high capacity of 1413 mAh g−1 at 0.1 C, good rate performance of 433 mAh g−1 at 10 C, and remarkable stability with 526 mAh g−1 at after 1000 cycles at 1 C (average decay rate: 0.038% per cycle). Our design provides a comprehensive route for simultaneously improving the conductivity, ion transport kinetics, and preventing the shuttle effect in LSBs.

A composite of ultra-fine few-layer MoS2 structures embedded on N,P-co-doped bio-carbon for high-performance sodium-ion batteries

2020 ◽  
Vol 44 (5) ◽  
pp. 2046-2052 ◽  
Author(s):  
Fenqiang Luo ◽  
Xinshu Xia ◽  
Lingxing Zeng ◽  
Xiaochuan Chen ◽  
Xiaoshan Feng ◽  
...  
Keyword(s):  
High Performance ◽  
Cycling Performance ◽  
Carbon Composite ◽  
Sodium Ion ◽  
High Rate ◽  
Sodium Ion Batteries ◽  
Highly Dispersed ◽  
Co Doped

Highly dispersed ultra-fine few-layer MoS2 embedded on N/P co-doped bio-carbon composite (MoS2-N/P-C) was synthesized and it delivers excellent high-rate long term cycling performance (175 mA h g−1 after 2000 cycles at 5 A g−1).

Fabrication of strong internal electric field ZnS/Fe9S10 heterostructures for highly efficient sodium ion storage

2019 ◽  
Vol 7 (19) ◽  
pp. 11771-11781 ◽  
Author(s):  
Chengzhi Zhang ◽  
Fei Han ◽  
Jianmin Ma ◽  
Zheng Li ◽  
Fuquan Zhang ◽  
...  
Keyword(s):  
Charge Carrier ◽  
Electric Field ◽  
Carrier Transport ◽  
High Capacity ◽  
Sodium Ion ◽  
High Rate ◽  
Charge Carrier Transport ◽  
Internal Electric Field ◽  
Ion Storage ◽  
Sodium Ion Storage

Heterostructure anode material have been developed by engineering internal electric field to boost charge carrier transport for high-rate and high-capacity sodium ion storage.

Na3V2(PO4)3 coated by N-doped carbon from ionic liquid as cathode materials for high rate and long-life Na-ion batteries

Nanoscale ◽  
2017 ◽  
Vol 9 (30) ◽  
pp. 10880-10885 ◽  
Author(s):  
Yu Yao ◽  
Yu Jiang ◽  
Hai Yang ◽  
Xizhen Sun ◽  
Yan Yu
Keyword(s):  
Ionic Liquid ◽  
Cathode Materials ◽  
Sol Gel ◽  
Sodium Ion ◽  
High Rate ◽  
Sodium Ion Batteries ◽  
Nitrogen Doped ◽  
Carbon Coated ◽  
Long Life ◽  
Nitrogen Doped Carbon

A facile and simple hydrothermal assisted sol–gel route was developed to prepare nitrogen doped carbon coated Na3V2(PO4)3 nanocomposites (denoted as NVP@C–N) as cathodes for sodium ion batteries (NIBs).

Sign in / Sign up

Export Citation Format

Share Document