Zero-strain K0.6Mn1F2.7 hollow nanocubes for ultrastable potassium ion storage

2018 ◽  
Vol 11 (10) ◽  
pp. 3033-3042 ◽  
Author(s):  
Zhiwei Liu ◽  
Ping Li ◽  
Guoquan Suo ◽  
Sheng Gong ◽  
Wei (Alex) Wang ◽  
...  
Keyword(s):  
Rate Capability ◽  
Potassium Ion ◽  
Cycling Stability ◽  
New Class ◽  
Ion Storage

In this report, we develop a new etching route to fabricate a new class of zero-strain potassium fluoromanganate hollow nanocubes (KMnF-NCs) for boosting the performance of KIBs in terms of capacity, rate capability and cycling stability.

Boosting the potassium-ion storage performance of a carbon anode by chemically regulating oxygen-containing species

2019 ◽  
Vol 55 (94) ◽  
pp. 14147-14150 ◽  
Author(s):  
Rui Zhang ◽  
Haibo Li ◽  
Rui Li ◽  
Denghu Wei ◽  
Wenjun Kang ◽  
...  
Keyword(s):  
Rate Capability ◽  
Reversible Capacity ◽  
Potassium Ion ◽  
Cycling Stability ◽  
Carbon Anode ◽  
Storage Performance ◽  
Ion Storage ◽  
Melamine Foam

The oxygen-containing species in melamine foam carbons are chemically regulated. The optimized carbon anode shows an enhanced potassium-ion storage performance in terms of reversible capacity, rate capability, and long-term cycling stability.

Graphene-templated formation of 3D tin-based foams for lithium ion storage applications with a long lifespan

2016 ◽  
Vol 4 (2) ◽  
pp. 362-367 ◽  
Author(s):  
Bin Luo ◽  
Tengfei Qiu ◽  
Long Hao ◽  
Bin Wang ◽  
Meihua Jin ◽  
...  
Keyword(s):  
Carbon Coating ◽  
Rate Capability ◽  
Lithium Ion ◽  
Cycling Stability ◽  
3D Graphene ◽  
Pore Structures ◽  
Ion Storage ◽  
Superior Cycling Stability

3D graphene-templated tin-based foams with tunable pore structures and uniform carbon coating have been successfully developed, achieving superior cycling stability and rate capability for lithium ion storage.

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.

Porous CoC2O4/Graphene Oxide Nanocomposite for Advanced Potassium-Ion Storage

2019 ◽  
Vol 19 (6) ◽  
pp. 3610-3615 ◽  
Author(s):  
Lifeng Wang ◽  
Kaiyuan Wei ◽  
Pengjun Zhang ◽  
Hong Wang ◽  
Xiujun Qi ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Lithium Ion Batteries ◽  
Low Cost ◽  
Rate Capability ◽  
Lithium Ion ◽  
Potassium Ion ◽  
Practical Applications ◽  
Ion Storage ◽  
Cheap Method ◽  
Excellent Cycling Stability

Potassium-ion batteries (PIBs), as one of the alternatives to lithium-ion batteries (LIBs), have attracted considerable attention on account of the affluence and low-cost of potassium. Moreover, CoC2O4 and graphene oxide (GO) have been used very well in lithium-ion batteries. Hence, the hybrid CoC2O4/GO was investigated as a new anode material for PIBs. The hybrid CoC2O4/GO was synthesized by a facile and cheap method combined with supersonic dispersion. Electrochemical measurements reveal that the hybrid CoC2O4/GO delivered an excellent cycling stability of 166 mAh g−1 at 50 mA g−1 and a superior rate capability even at 1 A g−1. These results demonstrate although the cycle ability was insufficient for practical applications, transition-metal oxalates composites can still bring new hope to the development of PIBs.

An MXene/CNTs@P nanohybrid with stable Ti–O–P bonds for enhanced lithium ion storage

2019 ◽  
Vol 7 (38) ◽  
pp. 21766-21773 ◽  
Author(s):  
Shixue Zhang ◽  
Huan Liu ◽  
Bin Cao ◽  
Qizhen Zhu ◽  
Peng Zhang ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
High Capacity ◽  
Rate Capability ◽  
Lithium Ion ◽  
Cycling Stability ◽  
Ion Storage

A Ti3C2Tx/CNTs@P nanohybrid with stable Ti–O–P bonds is simply fabricated, which exhibits high capacity, excellent long-term cycling stability and superior rate capability as an anode for lithium ion batteries.

Porous-Carbon Aerogels with Tailored Sub-Nanopores for High Cycling Stability and Rate Capability Potassium-Ion Battery Anodes

2020 ◽  
Vol 12 (24) ◽  
pp. 27045-27054 ◽  
Author(s):  
Wenqi Zhao ◽  
Yupeng Shen ◽  
Hui Zhang ◽  
Yunsong Wang ◽  
Yizeng Wu ◽  
...  
Keyword(s):  
Porous Carbon ◽  
Rate Capability ◽  
Potassium Ion ◽  
Cycling Stability ◽  
Carbon Aerogels

Phosphorus Particles Embedded in Reduced Graphene Oxide Matrix to Enhance Capacity and Rate Capability for Capacitive Potassium-Ion Storage

2018 ◽  
Vol 24 (52) ◽  
pp. 13897-13902 ◽  
Author(s):  
Hong Wang ◽  
Lifeng Wang ◽  
Liancheng Wang ◽  
Zheng Xing ◽  
Xuan Wu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Rate Capability ◽  
Potassium Ion ◽  
Reduced Graphene ◽  
Ion Storage ◽  
Oxide Matrix

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.

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>

High Potassium Ion Storage Capacity with Long Cycling Stability Enables by Sustainable Oxygen-Rich Carbon Nanosheets

Nanoscale ◽  
2021 ◽  
Author(s):  
Xuechun Li ◽  
Huanlei Wang ◽  
Wenzhe Zhang ◽  
Wenrui Wei ◽  
Ranxia Liao ◽  
...  
Keyword(s):  
Carbon Materials ◽  
Storage Capacity ◽  
Specific Capacity ◽  
Potassium Ion ◽  
Cycling Stability ◽  
High Potassium ◽  
Carbon Nanosheets ◽  
Ion Storage ◽  
Kinetics Of

The development of carbon materials for potassium storage is limited by the low specific capacity and poor cycling stability due to the sluggish kinetics of K ions. Herein, fucoidan-derived oxygen-rich...

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