Perylenetetracarboxylic diimide as a high-rate anode for potassium-ion batteries

2019 ◽  
Vol 7 (42) ◽  
pp. 24454-24461 ◽  
Author(s):  
Yunfei Bai ◽  
Wenbin Fu ◽  
Wenhao Chen ◽  
Zhichun Chen ◽  
Xiaojun Pan ◽  
...  
Keyword(s):  
Ion Transport ◽  
Fast Electron ◽  
Potassium Ion ◽  
Transport Kinetics ◽  
High Rate ◽  
Excellent Performance ◽  
Large Space ◽  
Semiconductor Properties

Benefitting from large space and semiconductor properties of PTCDI, a PTCDI electrode was constructed for PIBs. The electrode displays an excellent performance in optimized electrolytes which can be attributed to fast electron and ion transport kinetics.

Hierarchical Crumpled NiMn2O4@MXene Composites for High Rate Ion Transport Electrochemical Supercapacitors

2021 ◽  
Author(s):  
Hailong Yan ◽  
Jinbing Cheng ◽  
Zuxue Bai ◽  
Tao Peng ◽  
Jang-Kyo Kim ◽  
...  
Keyword(s):  
Ion Transport ◽  
Electronic Conductivity ◽  
High Rate ◽  
Surface Groups ◽  
Hydrophilic Surface ◽  
Electrochemical Supercapacitors ◽  
Excellent Performance ◽  
Volumetric Capacitance

MXenes have received great attention due to their excellent performance such as metal-like electronic conductivity, hydrophilic surface groups, and high volumetric capacitance. However, many performances of MXenes are still unsatisfied...

Instant gelation synthesis of 3D porous MoS2@C nanocomposites for lithium ion batteries

Nanoscale ◽  
2014 ◽  
Vol 6 (7) ◽  
pp. 3664-3669 ◽  
Author(s):  
Ling Fei ◽  
Yun Xu ◽  
Xiaofei Wu ◽  
Gen Chen ◽  
Yuling Li ◽  
...  
Keyword(s):  
Ion Transport ◽  
Electrochemical Properties ◽  
Lithium Ion Batteries ◽  
Fast Electron ◽  
Lithium Ion ◽  
Transport Kinetics ◽  
Excellent Stability

Instant gelation prepared porous MoS2@C nanocomposites show excellent electrochemical properties due to their excellent stability and fast electron and ion transport kinetics.

scholarly journals High Capacity and Fast Kinetics of Potassium-Ion Batteries Boosted by Nitrogen-Doped Mesoporous Carbon Spheres

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Jiefeng Zheng ◽  
Yuanji Wu ◽  
Yong Tong ◽  
Xi Liu ◽  
Yingjuan Sun ◽  
...  
Keyword(s):  
Mesoporous Carbon ◽  
Active Sites ◽  
Carbon Materials ◽  
Potassium Ion ◽  
High Rate ◽  
Electrochemical Performances ◽  
Carbon Spheres ◽  
Fast Kinetics ◽  
Nitrogen Doped ◽  
Economic Price

AbstractIn view of rich potassium resources and their working potential, potassium-ion batteries (PIBs) are deemed as next generation rechargeable batteries. Owing to carbon materials with the preponderance of durability and economic price, they are widely employed in PIBs anode materials. Currently, porosity design and heteroatom doping as efficacious improvement strategies have been applied to the structural design of carbon materials to improve their electrochemical performances. Herein, nitrogen-doped mesoporous carbon spheres (MCS) are synthesized by a facile hard template method. The MCS demonstrate larger interlayer spacing in a short range, high specific surface area, abundant mesoporous structures and active sites, enhancing K-ion migration and diffusion. Furthermore, we screen out the pyrolysis temperature of 900 °C and the pore diameter of 7 nm as optimized conditions for MCS to improve performances. In detail, the optimized MCS-7-900 electrode achieves high rate capacity (107.9 mAh g−1 at 5000 mA g−1) and stably brings about 3600 cycles at 1000 mA g−1. According to electrochemical kinetic analysis, the capacitive-controlled effects play dominant roles in total storage mechanism. Additionally, the full-cell equipped MCS-7-900 as anode is successfully constructed to evaluate the practicality of MCS.

High rate and stable symmetric potassium ion batteries fabricated with flexible electrodes and solid-state electrolytes

Nanoscale ◽  
2018 ◽  
Vol 10 (44) ◽  
pp. 20754-20760 ◽  
Author(s):  
Ke Lu ◽  
Hong Zhang ◽  
Siyuan Gao ◽  
Yingwen Cheng ◽  
Houyi Ma
Keyword(s):  
Solid State ◽  
Prussian Blue ◽  
High Performance ◽  
Potassium Ion ◽  
High Rate ◽  
Flexible Electrodes ◽  
Bipolar Electrodes ◽  
Solid State Electrolytes ◽  
Aqueous Batteries

Prussian blue particles were deposited on polypyrrole coated wiper clothes and used as bipolar electrodes for fabrication of high performance flexible solid state K-ion aqueous batteries.

Nitrogen and Phosphorus Dual-doped Porous Carbons for High-Rate Potassium Ion Batteries

Carbon ◽  
2021 ◽  
Author(s):  
Xiaoqing Ma ◽  
Nan Xiao ◽  
Jian Xiao ◽  
Xuedan Song ◽  
Hongda Guo ◽  
...  
Keyword(s):  
Potassium Ion ◽  
High Rate ◽  
Porous Carbons ◽  
Nitrogen And Phosphorus

Bismuthene from sonoelectrochemistry as a superior anode for potassium-ion batteries

2020 ◽  
Vol 8 (1) ◽  
pp. 453-460 ◽  
Author(s):  
Chao Shen ◽  
Tianle Cheng ◽  
Chunyan Liu ◽  
Lu Huang ◽  
Mengyang Cao ◽  
...  
Keyword(s):  
Force Field ◽  
External Force ◽  
Potassium Ion ◽  
Cycle Life ◽  
High Rate ◽  
Rate Performance ◽  
Electrochemical Exfoliation ◽  
Long Cycle Life ◽  
External Force Field ◽  
High Rate Performance

An external force field-assisted electrochemical exfoliation method was adopted to produce few-layered bismuthene nanosheets (FBNs). These FBNs exhibited a high rate performance and ultra-long cycle life for KIBs anode.

Potassium Ion Transport by Valinomycin across a Hg-Supported Lipid Bilayer

2005 ◽  
Vol 127 (38) ◽  
pp. 13316-13323 ◽  
Author(s):  
Lucia Becucci ◽  
Maria Rosa Moncelli ◽  
Renate Naumann ◽  
Rolando Guidelli
Keyword(s):  
Ion Transport ◽  
Lipid Bilayer ◽  
Potassium Ion ◽  
Supported Lipid Bilayer ◽  
Potassium Ion Transport
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