Defects and sulfur-doping design of porous carbon spheres for high-capacity potassium-ion storage

2021 ◽  
Author(s):  
Ruling Huang ◽  
Xixue Zhang ◽  
Zexi Qu ◽  
Xiaodong Zhang ◽  
Jiao Lin ◽  
...  
Keyword(s):  
Energy Storage ◽  
Porous Carbon ◽  
High Capacity ◽  
Potassium Ion ◽  
Carbon Spheres ◽  
Hard Carbon ◽  
Capacitive Energy Storage ◽  
Heteroatom Doping ◽  
Ion Storage ◽  
Porous Carbon Spheres

Heteroatom-doping had been demonstrated to effectively improve the capacitive energy storage of hard carbon in potassium ion batteries (KIBs). However, the external defects introduced during doping process are responsible to...

Nano-size porous carbon spheres as a high-capacity anode with high initial coulombic efficiency for potassium-ion batteries

2020 ◽  
Vol 5 (5) ◽  
pp. 895-903 ◽  
Author(s):  
Hehe Zhang ◽  
Chong Luo ◽  
Hanna He ◽  
Hong-Hui Wu ◽  
Li Zhang ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Porous Carbon ◽  
Coulombic Efficiency ◽  
High Capacity ◽  
Potassium Ion ◽  
Carbon Spheres ◽  
Hard Carbon ◽  
Porous Carbon Spheres ◽  
Nano Size ◽  
Initial Coulombic Efficiency

An anode of hard carbon spheres with both small size and a porous structure enables superior electrochemical performance of potassium-ion batteries.

Microporous Organic Polymer‐Derived Nitrogen‐Doped Porous Carbon Spheres for Efficient Capacitive Energy Storage

2019 ◽  
Vol 6 (13) ◽  
pp. 3327-3336 ◽  
Author(s):  
Namrata Deka ◽  
Jayshree Barman ◽  
Jumi Deka ◽  
Kalyan Raidongia ◽  
Gitish K. Dutta
Keyword(s):  
Energy Storage ◽  
Porous Carbon ◽  
Organic Polymer ◽  
Carbon Spheres ◽  
Capacitive Energy Storage ◽  
Nitrogen Doped ◽  
Porous Carbon Spheres

Porous hard carbon spheres derived from biomass for high-performance sodium/potassium-ion batteries

2021 ◽  
Vol 33 (5) ◽  
pp. 055401
Author(s):  
Shuijiao Chen ◽  
Kejian Tang ◽  
Fei Song ◽  
Zhichao Liu ◽  
Nan Zhang ◽  
...  
Keyword(s):  
Porous Carbon ◽  
Metal Ion ◽  
High Performance ◽  
Potassium Ion ◽  
Waste Biomass ◽  
Carbon Microspheres ◽  
Carbon Spheres ◽  
Hard Carbon ◽  
Sodium Potassium ◽  
Ion Storage

Abstract Hard carbon is the most attractive anode material for electrochemical sodium/potassium-ion storage. The preparation of hard carbon spheres directly from the broad sources of biomass is of great interest but barely reported. Herein, we developed a simple two-step hydrothermal method to construct porous carbon microspheres directly from the original waste biomass of camellia shells. The porous carbon microspheres have high specific capacities of 250 mAh g−1 and 264.5 mAh g−1 at a current density of 100 mA g−1 for sodium-ion batteries and potassium-ion batteries, respectively. And it has excellent cycle stability for sodium ions and potassium ions outperforming most reported hard carbons, which is mainly attributed to the microporous structure and spherical morphology. The work paves a way to prepare porous hard carbon spheres directly from biomass for alkali metal-ion batteries.

Insights into high capacity and ultrastable carbonaceous anodes for potassium-ion storage via a hierarchical heterostructure

2020 ◽  
Vol 8 (5) ◽  
pp. 2836-2842 ◽  
Author(s):  
Chunrong Ma ◽  
Huijun Yang ◽  
Zhixin Xu ◽  
Zhengguang Fu ◽  
Yingying Xie ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Porous Carbon ◽  
Three Dimensional ◽  
High Capacity ◽  
Potassium Ion ◽  
Carbon Nanosheets ◽  
Structure And Morphology ◽  
Ion Storage

Three-dimensional (3D) P-doped porous carbon nanosheets (PCSs) are designed for enhancing PIB performance by adjusting the electronic structure and morphology.

Core-shell hierarchical porous carbon spheres with N/O doping for efficient energy storage

2020 ◽  
Vol 358 ◽  
pp. 136899 ◽  
Author(s):  
Jingjing Yan ◽  
Ling Miao ◽  
Hui Duan ◽  
Dazhang Zhu ◽  
Yaokang Lv ◽  
...  
Keyword(s):  
Energy Storage ◽  
Porous Carbon ◽  
Core Shell ◽  
Carbon Spheres ◽  
Hierarchical Porous Carbon ◽  
Efficient Energy ◽  
Hierarchical Porous ◽  
Porous Carbon Spheres

Porous carbon sphere anodes for enhanced lithium-ion storage

2015 ◽  
Vol 3 (18) ◽  
pp. 9861-9868 ◽  
Author(s):  
Vinodkumar Etacheri ◽  
Chengwei Wang ◽  
Michael J. O'Connell ◽  
Candace K. Chan ◽  
Vilas G. Pol
Keyword(s):  
Porous Carbon ◽  
Lithium Ion ◽  
Spray Pyrolysis Method ◽  
Carbon Sphere ◽  
Carbon Spheres ◽  
Ion Storage ◽  
Graphite Anodes ◽  
Li Ion ◽  
Template Free ◽  
Porous Carbon Spheres

Porous carbon spheres with superior Li-ion storage performance to commercial graphite anodes are synthesized through a template-free spray pyrolysis method.

Active sites enriched hard carbon porous nanobelts for stable and high-capacity potassium-ion storage

Nano Energy ◽  
2020 ◽  
Vol 77 ◽  
pp. 105018 ◽  
Author(s):  
Kai Zhang ◽  
Qiu He ◽  
Fangyu Xiong ◽  
Jinping Zhou ◽  
Yan Zhao ◽  
...  
Keyword(s):  
Active Sites ◽  
High Capacity ◽  
Potassium Ion ◽  
Hard Carbon ◽  
Ion Storage
Sign in / Sign up

Export Citation Format

Share Document