P3-type layered K0.48Mn0.4Co0.6O2: a novel cathode material for potassium-ion batteries

2020 ◽  
Vol 56 (15) ◽  
pp. 2272-2275 ◽  
Author(s):  
Krishnakanth Sada ◽  
Prabeer Barpanda
Keyword(s):  
Cathode Material ◽  
Discharge Capacity ◽  
Potassium Ion ◽  
Cycling Stability ◽  
Type K ◽  
Excellent Cycling Stability

A P3-type K0.48Mn0.4Co0.6O2 oxide forms a 3 V economical cathode for potassium-ion batteries, having a discharge capacity of 64 mA h g−1 coupled with excellent cycling stability.

Effect of sulfur doping on structural reversibility and cycling stability of a Li2MnSiO4 cathode material

2018 ◽  
Vol 47 (35) ◽  
pp. 12337-12344 ◽  
Author(s):  
Xia Wu ◽  
Shi-Xi Zhao ◽  
Lü-Qiang Yu ◽  
Jin-Lin Yang ◽  
Ce-Wen Nan
Keyword(s):  
Cathode Material ◽  
Discharge Capacity ◽  
Cycling Stability ◽  
Initial Discharge Capacity ◽  
Sulfur Doping ◽  
Initial Discharge ◽  
Excellent Cycling Stability

Sulfur has been successfully employed into Li2MnSiO4 and results in a high initial discharge capacity and 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.

On Improving the Cycling Stability of P2-Type Na0.67Ni0.33Mn0.67O2 Cathode Material By Ti-Substitution for Na-Ion Batteries

2019 ◽  
Author(s):  
Debanjana Pahari ◽  
Sreeraj Puravankara
Keyword(s):  
Solid State ◽  
Cathode Material ◽  
Discharge Capacity ◽  
Synthesis Method ◽  
Cycling Stability ◽  
Solid State Synthesis ◽  
Initial Discharge Capacity ◽  
Initial Discharge ◽  
Ti Substitution ◽  
Solid State Synthesis Method

A novel cathode material with Ti-substitution on Ni site, P2-type Na0.67Ni0.25Ti0.08Mn0.67O2 has been synthesized via solid-state synthesis method and characterized electrochemically. Na0.67Ni0.25Ti0.08Mn0.67O2 electrodes have been observed tobe highly reversible at higher voltage ranges. The electrodes have an initial discharge capacity of 125 mAhg-1and can retain around 84% of this capacity (105 mAhg-1) even after 50 cycles at 0.1C when cycled at an uppercut-off voltage of 4.3 V. Na0.67Ni0.25Ti0.08Mn0.67O2 electrodes are believed to suppress the irreversible P2-O2 transformation by diverting the charging reaction through a more reversible P2-OP4transition.

Low-defect K2Mn[Fe(CN)6]-reduced graphene oxide composite for high-performance potassium-ion batteries

2021 ◽  
Author(s):  
Juan Zhang ◽  
Leqing Deng ◽  
Meiying Feng ◽  
Liang Zeng ◽  
Miao Hu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Cathode Material ◽  
Reduced Graphene Oxide ◽  
High Performance ◽  
Fast Rate ◽  
Rate Capability ◽  
Potassium Ion ◽  
Oxide Composite ◽  
Reduced Graphene ◽  
Excellent Cycling Stability

Here, a low-defect K2Mn[Fe(CN)6]-reduced graphene oxide (KMF-RGO) composite is fabricated, which demonstrates excellent cycling stability, fast rate capability, and exceptional air stability as a cathode material for potassium-ion batteries (KIBs)....

scholarly journals Development of P3-K0.69CrO2 as an ultra-high-performance cathode material for K-ion batteries

2018 ◽  
Vol 11 (10) ◽  
pp. 2821-2827 ◽  
Author(s):  
Jang-Yeon Hwang ◽  
Jongsoon Kim ◽  
Tae-Yeon Yu ◽  
Seung-Taek Myung ◽  
Yang-Kook Sun
Keyword(s):  
Ion Exchange ◽  
Cathode Material ◽  
High Performance ◽  
Cycling Stability ◽  
Excellent Cycling Stability ◽  
Power Capability ◽  
Electrochemical Ion Exchange

P3-K0.69CrO2 cathode is successfully synthesized via an electrochemical ion-exchange route and delivers excellent cycling stability and power capability in K-ion batteries.

Rational design of forest-like nickel sulfide hierarchical architectures with ultrahigh areal capacity as a binder-free cathode material for hybrid supercapacitors

2018 ◽  
Vol 6 (27) ◽  
pp. 13178-13190 ◽  
Author(s):  
G. Seeta Rama Raju ◽  
E. Pavitra ◽  
Goli Nagaraju ◽  
S. Chandra Sekhar ◽  
Seyed Majid Ghoreishian ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Cathode Material ◽  
Rational Design ◽  
Nickel Sulfide ◽  
Cycling Stability ◽  
Hybrid Supercapacitors ◽  
Binder Free ◽  
Hierarchical Architectures ◽  
Excellent Cycling Stability ◽  
Areal Capacity

The forest-like NiS hierarchical architectures demonstrated superior electrochemical performance with excellent cycling stability.

scholarly journals MnO2 Heterostructure on Carbon Nanotubes as Cathode Material for Aqueous Zinc-Ion Batteries

2020 ◽  
Vol 21 (13) ◽  
pp. 4689 ◽  
Author(s):  
Sonti Khamsanga ◽  
Mai Thanh Nguyen ◽  
Tetsu Yonezawa ◽  
Patchanita Thamyongkit ◽  
Rojana Pornprasertsuk ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Cathode Material ◽  
Discharge Capacity ◽  
Rate Capability ◽  
Zinc Ion ◽  
Cycling Stability ◽  
Ion Diffusion ◽  
Energy Devices ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

Due to their cost effectiveness, high safety, and eco-friendliness, zinc-ion batteries (ZIBs) are receiving much attention nowadays. In the production of rechargeable ZIBs, the cathode plays an important role. Manganese oxide (MnO2) is considered the most promising and widely investigated intercalation cathode material. Nonetheless, MnO2 cathodes are subjected to challenging issues viz. limited capacity, low rate capability and poor cycling stability. It is seen that the MnO2 heterostructure can enable long-term cycling stability in different types of energy devices. Herein, a versatile chemical method for the preparation of MnO2 heterostructure on multi-walled carbon nanotubes (MNH-CNT) is reported. Besides, the synthesized MNH-CNT is composed of δ-MnO2 and γ-MnO2. A ZIB using the MNH-CNT cathode delivers a high initial discharge capacity of 236 mAh g−1 at 400 mA g−1, 108 mAh g−1 at 1600 mA g−1 and excellent cycling stability. A pseudocapacitive behavior investigation demonstrates fast zinc ion diffusion via a diffusion-controlled process with low capacitive contribution. Overall, the MNH-CNT cathode is seen to exhibit superior electrochemical performance. This work presents new opportunities for improving the discharge capacity and cycling stability of aqueous ZIBs.

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.

Ultrafast spray pyrolysis fabrication of a nanophase ZnMn2O4 anode towards high-performance Li-ion batteries

RSC Advances ◽  
2015 ◽  
Vol 5 (18) ◽  
pp. 13667-13673 ◽  
Author(s):  
Longhai Zhang ◽  
Siqi Zhu ◽  
Hui Cao ◽  
Gang Pang ◽  
Jingdong Lin ◽  
...  
Keyword(s):  
Spray Pyrolysis ◽  
Discharge Capacity ◽  
High Performance ◽  
Rate Capability ◽  
Cycling Stability ◽  
Li Ion Batteries ◽  
Specific Discharge ◽  
Li Ion ◽  
Excellent Cycling Stability ◽  
Good Rate Capability

Nanophase ZnMn2O4 was ultrafast fabricated via a green spray pyrolysis strategy, and exhibited large initial specific discharge capacity, good rate capability, and excellent cycling stability at 1 C rate.

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