A carbon microtube array with a multihole cross profile: releasing the stress and boosting long-cycling and high-rate potassium ion storage

2019 ◽  
Vol 7 (45) ◽  
pp. 25845-25852 ◽  
Author(s):  
Bo Wang ◽  
Fei Yuan ◽  
Wei (Alex) Wang ◽  
Di Zhang ◽  
Huilan Sun ◽  
...  
Keyword(s):  
Tangential Stress ◽  
Porous Carbon ◽  
Radial Stress ◽  
Potassium Ion ◽  
Cycling Stability ◽  
High Rate ◽  
Ion Storage ◽  
Excellent Cycling Stability ◽  
Microtube Array

As an advanced anode for potassium-ion batteries (PIBs), the porous carbon microtube can reduce the radial stress and tangential stress during cycling, resulting in excellent cycling stability.

An iron-based polyanionic cathode for potassium storage with high capacity and excellent cycling stability

2020 ◽  
Vol 8 (18) ◽  
pp. 9128-9136 ◽  
Author(s):  
Haiyan He ◽  
Wenjiao Yao ◽  
Sarayut Tunmee ◽  
Xiaolong Zhou ◽  
Bifa Ji ◽  
...  
Keyword(s):  
High Stability ◽  
High Capacity ◽  
Potassium Ion ◽  
Cycling Stability ◽  
Positive Electrode ◽  
Ion Storage ◽  
Excellent Cycling Stability ◽  
Iron Based

KLi3Fe(C2O4)3@C is developed as a positive electrode for potassium-ion storage with high stability and long cyclability.

scholarly journals Boosting Fast and Stable Potassium-ion Storage by Synergistic Interlayer and Pore-structure Engineering

2020 ◽  
Author(s):  
Deping Li ◽  
Qing Sun ◽  
Yamin Zhang ◽  
Xinyue Dai ◽  
Fengjun Ji ◽  
...  
Keyword(s):  
Porous Carbon ◽  
High Performance ◽  
Electrode Materials ◽  
Rate Capability ◽  
Potassium Ion ◽  
High Rate ◽  
Ex Situ ◽  
Metallic Ions ◽  
Energy Storage Devices ◽  
Ion Storage

<p>Carbon-based material has been regarded as one of the most promising electrode materials for Potassium-ion batteries (PIBs). However, the battery performance based on reported porous carbon electrodes is still unsatisfactory, while the in-depth K-ion storage mechanism remains relatively ambiguous. Herein, we propose a facile “<i>in situ</i> template bubbling” method for synthesizing interlayer tuned hierarchically porous carbon with different metallic ions, which delivers superior K-ion storage performance, especially the rate capability (158.6 mAh g<sup>-1</sup>@10.0 A g<sup>-1</sup>) and high-rate cycling stability (82.8% capacity retention after 2000 cycles at 5.0 A g<sup>-1</sup>). The origin of the excellent rate performance is revealed by the deliberately designed consecutive CV measurements, <i>Ex situ</i> Raman tests, GITT and theoretical simulations. Considering the facile preparation strategy, superior electrochemical performance and insightful mechanism investigations, this work can provide fundamental understandings for high performance PIBs and related energy storage devices like sodium-ion batteries, aluminum-ion batteries, electrochemical capacitors and dual-ion batteries.</p>

scholarly journals Boosting Fast and Stable Potassium-ion Storage by Synergistic Interlayer and Pore-structure Engineering

2020 ◽  
Author(s):  
Deping Li ◽  
Qing Sun ◽  
Yamin Zhang ◽  
Xinyue Dai ◽  
Fengjun Ji ◽  
...  
Keyword(s):  
Porous Carbon ◽  
High Performance ◽  
Electrode Materials ◽  
Rate Capability ◽  
Potassium Ion ◽  
High Rate ◽  
Ex Situ ◽  
Metallic Ions ◽  
Energy Storage Devices ◽  
Ion Storage

<p>Carbon-based material has been regarded as one of the most promising electrode materials for Potassium-ion batteries (PIBs). However, the battery performance based on reported porous carbon electrodes is still unsatisfactory, while the in-depth K-ion storage mechanism remains relatively ambiguous. Herein, we propose a facile “<i>in situ</i> template bubbling” method for synthesizing interlayer tuned hierarchically porous carbon with different metallic ions, which delivers superior K-ion storage performance, especially the rate capability (158.6 mAh g<sup>-1</sup>@10.0 A g<sup>-1</sup>) and high-rate cycling stability (82.8% capacity retention after 2000 cycles at 5.0 A g<sup>-1</sup>). The origin of the excellent rate performance is revealed by the deliberately designed consecutive CV measurements, <i>Ex situ</i> Raman tests, GITT and theoretical simulations. Considering the facile preparation strategy, superior electrochemical performance and insightful mechanism investigations, this work can provide fundamental understandings for high performance PIBs and related energy storage devices like sodium-ion batteries, aluminum-ion batteries, electrochemical capacitors and dual-ion batteries.</p>

Carbon-Coated Self-Assembled Ultrathin T-Nb2O5 Nanosheets for High-Rate Lithium-Ion Storage with Superior Cycling Stability

2020 ◽  
Vol 3 (12) ◽  
pp. 12037-12045
Author(s):  
Yang Li ◽  
Yan Wang ◽  
Guirong Cui ◽  
Tianyu Zhu ◽  
Jianfang Zhang ◽  
...  
Keyword(s):  
Lithium Ion ◽  
Cycling Stability ◽  
High Rate ◽  
Ion Storage ◽  
Carbon Coated ◽  
Self Assembled ◽  
Superior Cycling Stability

Design of kinetic well-matched Mo2C nanoparticles anchored into 3D hierarchical porous carbon towards high-rate sodium ion storage

2021 ◽  
Vol 372 ◽  
pp. 137860
Author(s):  
Dong-Ting zhang ◽  
Mao-Cheng Liu ◽  
Jun Li ◽  
Yu-Shan Zhang ◽  
Bing-Mei Zhang ◽  
...  
Keyword(s):  
Porous Carbon ◽  
Sodium Ion ◽  
High Rate ◽  
Hierarchical Porous Carbon ◽  
Hierarchical Porous ◽  
Ion Storage ◽  
Sodium Ion Storage

Co-Electrodeposited porous PEDOT–CNT microelectrodes for integrated micro-supercapacitors with high energy density, high rate capability, and long cycling life

Nanoscale ◽  
2019 ◽  
Vol 11 (16) ◽  
pp. 7761-7770 ◽  
Author(s):  
Muhammad Tahir ◽  
Liang He ◽  
Waqas Ali Haider ◽  
Wei Yang ◽  
Xufeng Hong ◽  
...  
Keyword(s):  
Energy Density ◽  
Rate Capability ◽  
High Energy ◽  
Cycling Stability ◽  
High Rate ◽  
High Energy Density ◽  
High Rate Capability ◽  
Excellent Cycling Stability ◽  
Cycling Life

Microstructuring of the PEDOT–CNT composite for microsupercapacitors with high rate capability and excellent cycling stability.

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