Mesoporous In2O3 nanofibers assembled by ultrafine nanoparticles as a high capacity anode for Li-ion batteries

RSC Advances ◽  
2016 ◽  
Vol 6 (55) ◽  
pp. 49782-49786 ◽  
Author(s):  
Yong Zhang ◽  
Chunhai Jiang ◽  
Shuxin Zhuang ◽  
Mi Lu ◽  
Yongcan Cai

As a lithium storage material, In2O3 has been hindered by its rapid capacity degradation due to the large volume change during the repeated lithiation and delithiation process, although an initial discharge capacity of more than 1600 mA h g−1.

2020 ◽  
Vol 46 (9) ◽  
pp. 14030-14037 ◽  
Author(s):  
Meng-Cheng Han ◽  
Jun-Hong Zhang ◽  
Ping Cui ◽  
Ting-Feng Yi ◽  
Xifei Li

2019 ◽  
Vol 7 (18) ◽  
pp. 11478-11486 ◽  
Author(s):  
Xiaowei He ◽  
Lidong Tian ◽  
Mingtao Qiao ◽  
Jianzheng Zhang ◽  
Wangchang Geng ◽  
...  

Hierarchically structured and ammonium-rich Prussian blue analogue materials are prepared by a one-step hydrothermal method, and show excellent lithium storage performance.


2019 ◽  
Vol 7 (37) ◽  
pp. 21270-21279 ◽  
Author(s):  
Yanmin Qin ◽  
Zhongqing Jiang ◽  
Liping Guo ◽  
Jianlin Huang ◽  
Zhong-Jie Jiang ◽  
...  

N, S co-doped carbon coated MnOS (MnOS@NSC) has been demonstrated to be a potential anode material for LIBs with high capacity, good cycling stability and excellent rate performance.


2015 ◽  
Vol 3 (43) ◽  
pp. 21699-21705 ◽  
Author(s):  
Lin Mei ◽  
Minglei Mao ◽  
Shulei Chou ◽  
Huakun Liu ◽  
Shixue Dou ◽  
...  

Germanium dioxide is a promising high-capacity anode material for lithium-ion batteries, but it usually exhibits poor cycling stability due to its large volume change during the lithiation/delithiation process.


2007 ◽  
Vol 336-338 ◽  
pp. 517-520 ◽  
Author(s):  
Xiang Ming He ◽  
Wei Hua Pu ◽  
Fang Hui Zhao ◽  
Jie Rong Ying ◽  
Chang Yin Jiang ◽  
...  

Spherical LiNi0.8Co0.2O2 powders with particle size of 8~10μm were prepared based on controlled crystallization, and coated with Al2O3 by Al(OH)3 sol, that was prepared from Al(NO3)3 and NaOH, at first time. SEM, XRD and surface element analysis showed that the nano-sized Al2O3 was coated uniformly on the surface of LiNi0.8Co0.2O2 powder. At 25 °C, the initial discharge capacity decreased from 160 to 149 mAh g-1 after coating of Al2O3. The initial discharge capacity decreased from 168 to 163 mAh g-1 after coating of Al2O at 55 °C. After coating of Al2O3, the capacity retentions increased from 83.8% to 92.6% at the 50th cycle at 25°C, and from 36.3% to 90.8% at the 10th cycle at 55°C. This paves effective way to improve the performance of LiNi0.8Co0.2O2 material for rechargeable lithium ion batteries.


2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Min Wang ◽  
Meng Yang ◽  
Liqun Ma ◽  
Xiaodong Shen ◽  
Xu Zhang

High capacity Li2MnSiO4/C nanocomposite with good rate performance was prepared via a facile sol-gel method using ascorbic acid as carbon source. It had a uniform distribution on particle size of approximately 20 nm and a thin outlayer of carbon. The galvanostatic charge-discharge measurement showed that the Li2MnSiO4/C electrode could deliver an initial discharge capacity of 257.1 mA h g−1(corresponding to 1.56 Li+) at a current density of 10 mA g−1at 30°C, while the Li2MnSiO4electrode possessed a low capacity of 25.6 mA h g−1. Structural amorphization resulting from excessive extraction of Li+during the first charge was the main reason for the drastic capacity fading. Controlling extraction of Li+could inhibit the amorphization of Li2MnSiO4/C during the delithiation, contributing to a reversible structural change and good cycling performance.


2019 ◽  
Author(s):  
Debanjana Pahari ◽  
Sreeraj Puravankara

The extensive studies over the last decade have established Na-ion batteries (NIBs) as one of the cheaperalternatives to Li-ion batteries. P2-type Na0.67Ni0.33Mn0.67O2 has stood out among layered oxidebased electrode materials providing the best over-all electrochemical performance. The electrodes can exertup to 92.5% of its theoretical capacity (160 mAhg-1) at a voltage higher than 3 V accounted for the Ni2+/Ni4+redox. However, at higher voltages, electrodes suffer irreversibility due to P2-O2 structural transition.Recent studies in suppressing this transition by partial substitution with various metals on either Ni or Mnlattice site have suggested enhancing cycling stability. In this study, a novel cathode material with Ti-substitution on Ni site, P2-type Na0.67Ni0.25Ti0.08Mn0.67O2 has been synthesized via solid-state synthesismethod 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.


2021 ◽  
pp. 2004998
Author(s):  
Huarong Xia ◽  
Yuxin Tang ◽  
Oleksandr I. Malyi ◽  
Zhiqiang Zhu ◽  
Yanyan Zhang ◽  
...  

2020 ◽  
Vol 364 ◽  
pp. 137293
Author(s):  
Jinfang Lin ◽  
Shuyi Chen ◽  
Licai Zhu ◽  
Zhongzhi Yuan ◽  
Jincheng Liu

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