Hexagonal prism arrays constructed using ultrathin porous nanoflakes of carbon doped mixed-valence Co–Mn–Fe phosphides for ultrahigh areal capacitance and remarkable cycling stability

2019 ◽  
Vol 7 (9) ◽  
pp. 4431-4437 ◽  
Author(s):  
Richao Niu ◽  
Gengjie Wang ◽  
Yuying Ding ◽  
Shaochun Tang ◽  
Xuemin Hu ◽  
...  
Keyword(s):  
Mixed Valence ◽  
Rate Capability ◽  
Cycling Stability ◽  
Hexagonal Prism ◽  
High Capacitance ◽  
Carbon Doped ◽  
Areal Capacitance

With novel hierarchical hexagonal prism arrays, a carbon-doped mixed-valence Co–Mn–Fe phosphide electrode shows high capacitance, rate capability and cycling stability.

Ultra-high rate capability of nanoporous carbon network@V2O5 sub-micron brick composite as a novel cathode material for asymmetric supercapacitors

Nanoscale ◽  
2020 ◽  
Vol 12 (45) ◽  
pp. 23213-23224
Author(s):  
Yue Jiao ◽  
Caichao Wan ◽  
Yiqiang Wu ◽  
Jingquan Han ◽  
Wenhui Bao ◽  
...  
Keyword(s):  
Cathode Material ◽  
Rate Capability ◽  
Nanoporous Carbon ◽  
Cycling Stability ◽  
High Rate ◽  
High Rate Capability ◽  
Asymmetric Supercapacitors ◽  
Areal Capacitance ◽  
Superior Cycling Stability ◽  
Carbon Network

A novel cathode material, composed of biomass-derived nanoporous carbon network and V2O5 sub-micron bricks, delivers a high areal capacitance of 786 mF cm−2 at 0.2 mA cm−2 and superior cycling stability.

Unveiling the Synergic Roles of Mg/Zr Co-Doping on Rate Capability and Cycling Stability of Li4Ti5O12

2019 ◽  
Vol 166 (4) ◽  
pp. A658-A666 ◽  
Author(s):  
Zhenya Wang ◽  
Limei Sun ◽  
Wenyun Yang ◽  
Jinbo Yang ◽  
Kai Sun ◽  
...  
Keyword(s):  
Rate Capability ◽  
Cycling Stability ◽  
Co Doping

scholarly journals Oxygen-Deficient β-MnO2@Graphene Oxide Cathode for High-Rate and Long-Life Aqueous Zinc Ion Batteries

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Shouxiang Ding ◽  
Mingzheng Zhang ◽  
Runzhi Qin ◽  
Jianjun Fang ◽  
Hengyu Ren ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Manganese Oxides ◽  
Rate Capability ◽  
High Energy ◽  
Zinc Ion ◽  
Cycling Stability ◽  
High Rate ◽  
High Energy Density ◽  
Superior Performance ◽  
Long Life

AbstractRecent years have witnessed a booming interest in grid-scale electrochemical energy storage, where much attention has been paid to the aqueous zinc ion batteries (AZIBs). Among various cathode materials for AZIBs, manganese oxides have risen to prominence due to their high energy density and low cost. However, sluggish reaction kinetics and poor cycling stability dictate against their practical application. Herein, we demonstrate the combined use of defect engineering and interfacial optimization that can simultaneously promote rate capability and cycling stability of MnO2 cathodes. β-MnO2 with abundant oxygen vacancies (VO) and graphene oxide (GO) wrapping is synthesized, in which VO in the bulk accelerate the charge/discharge kinetics while GO on the surfaces inhibits the Mn dissolution. This electrode shows a sustained reversible capacity of ~ 129.6 mAh g−1 even after 2000 cycles at a current rate of 4C, outperforming the state-of-the-art MnO2-based cathodes. The superior performance can be rationalized by the direct interaction between surface VO and the GO coating layer, as well as the regulation of structural evolution of β-MnO2 during cycling. The combinatorial design scheme in this work offers a practical pathway for obtaining high-rate and long-life cathodes for AZIBs.

Enhanced Rate Capability and Cycling Stability of Novel Ammonium Vanadate Materials Used in Aqueous Li-Ion Batteries

2021 ◽  
Vol 35 (5) ◽  
pp. 4570-4576
Author(s):  
Najeeb ur Rehman Lashari ◽  
Mingshu Zhao ◽  
Qingyang Zheng ◽  
Xinhai He ◽  
Irfan Ahmed ◽  
...  
Keyword(s):  
Rate Capability ◽  
Cycling Stability ◽  
Li Ion Batteries ◽  
Ammonium Vanadate ◽  
Li Ion ◽  
Materials Used

Increasing Accessible Subsurface to Improving Rate Capability and Cycling Stability of Sodium‐Ion Batteries

2021 ◽  
pp. 2100808
Author(s):  
Bo Yin ◽  
Shuquan Liang ◽  
Dongdong Yu ◽  
Boshi Cheng ◽  
Ishioma L. Egun ◽  
...  
Keyword(s):  
Rate Capability ◽  
Cycling Stability ◽  
Sodium Ion ◽  
Sodium Ion Batteries

scholarly journals The improved cycling stability and rate capability of Nb-doped NaV3O8 cathode for sodium-ion batteries

2021 ◽  
pp. 161885
Author(s):  
Limin Zhu ◽  
Chunliang Pan ◽  
Qing Han ◽  
Yongxia Miao ◽  
Xinli Yang ◽  
...  
Keyword(s):  
Rate Capability ◽  
Cycling Stability ◽  
Sodium Ion ◽  
Sodium Ion Batteries

SiO2@NiO core–shell nanocomposites as high performance anode materials for lithium-ion batteries

RSC Advances ◽  
2015 ◽  
Vol 5 (77) ◽  
pp. 63012-63016 ◽  
Author(s):  
Yourong Wang ◽  
Wei Zhou ◽  
Liping Zhang ◽  
Guangsen Song ◽  
Siqing Cheng
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Materials ◽  
High Performance ◽  
Coulombic Efficiency ◽  
Rate Capability ◽  
Lithium Ion ◽  
Cycling Stability ◽  
Core Shell ◽  
Excellent Cycling Stability

A SiO2@NiO core–shell electrode exhibits almost 100% coulombic efficiency, excellent cycling stability and rate capability after the first few cycles.

A comparative study of ordered mesoporous carbons with different pore structures as anode materials for lithium-ion batteries

RSC Advances ◽  
2015 ◽  
Vol 5 (53) ◽  
pp. 42922-42930 ◽  
Author(s):  
Diganta Saikia ◽  
Tzu-Hua Wang ◽  
Chieh-Ju Chou ◽  
Jason Fang ◽  
Li-Duan Tsai ◽  
...  
Keyword(s):  
Comparative Study ◽  
Lithium Ion Batteries ◽  
Anode Materials ◽  
Rate Capability ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Cycling Stability ◽  
Mesoporous Carbons ◽  
Ordered Mesoporous Carbons ◽  
Ordered Mesoporous

Ordered mesoporous carbons CMK-3 and CMK-8 with different mesostructures are evaluated as anode materials for lithium-ion batteries. CMK-8 possesses higher reversible capacity, better cycling stability and rate capability than CMK-3.

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