Assessing Atomic-Phase Transitions and Ion Transport in Layered NaxNiO2 (x ≤ 0.67) Cathode Materials

2021 ◽  
Vol 125 (9) ◽  
pp. 4930-4937
Author(s):  
Hui Wan ◽  
Zhixiao Liu ◽  
Huiqiu Deng ◽  
Fei Gao ◽  
Wangyu Hu
2017 ◽  
Vol 5 (46) ◽  
pp. 24292-24298 ◽  
Author(s):  
Yu Zheng ◽  
Lai Chen ◽  
Yuefeng Su ◽  
Jing Tan ◽  
Liying Bao ◽  
...  

A spinel structured interfacial framework was derived within a host layered crystal, resulting in excellent high-rate capability of Li-rich materials.


2018 ◽  
Vol 20 (9) ◽  
pp. 6116-6120
Author(s):  
Xin Li ◽  
Xiaoli Huang ◽  
Xin Wang ◽  
Mingkun Liu ◽  
Gang Wu ◽  
...  

The soft amplitude (AMP) mode demonstrates pressure-induced commensurate–incommensurate–atomic phase transitions.


Author(s):  
M. V. Patrakeev ◽  
V. L. Kozhevnikov ◽  
I. A. Leonidov ◽  
J. A. Bahteeva ◽  
E. B. Mitberg

2018 ◽  
Vol 20 (21) ◽  
pp. 14557-14563 ◽  
Author(s):  
Xiaobao Lv ◽  
Xin Zhao ◽  
Shunqing Wu ◽  
Manh Cuong Nguyen ◽  
Zizhong Zhu ◽  
...  

Structural phase transitions of electrode materials are responsible for poor reversibility during charge/discharge cycling in Li-ion batteries.


Energies ◽  
2018 ◽  
Vol 11 (10) ◽  
pp. 2712 ◽  
Author(s):  
Tao Cheng ◽  
Zhongtao Ma ◽  
Run Gu ◽  
Riming Chen ◽  
Yingchun Lyu ◽  
...  

The lithium-rich Li[Li0.2Ni0.13Mn0.54Co0.13]O2 nanoplates were synthesized using a molten-salt method. The nanoplates showed an initial reversible discharge capacity of 233 mA·h·g−1, with a fast capacity decay. The morphology and micro-structural change, after different cycles, were studied by a scanning electron microscope (SEM) and transmission electron microscopy (TEM) to understand the mechanism of the capacity decay. Our results showed that the cracks generated from both the particle surface and the inner, and increased with long-term cycling at 0.1 C rate (C = 250 mA·g−1), together with the layered to spinel and rock-salt phase transitions. These results show that the cracks and phase transitions could be responsible for the capacity decay. The results will help us to understand capacity decay mechanisms, and to guide our future work to improve the electrochemical performance of lithium-rich cathode materials.


2005 ◽  
Vol 46 (5) ◽  
pp. 839-847 ◽  
Author(s):  
V. Ya. Kavun ◽  
N. A. Didenko ◽  
A. B. Slobodyuk ◽  
I. A. Tkachenko ◽  
A. V. Gerasimenko ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document