scholarly journals Cr2P2O7 as a Novel Anode Material for Sodium and Lithium Storage

Materials ◽  
2020 ◽  
Vol 13 (14) ◽  
pp. 3139
Author(s):  
Shuo Wang ◽  
Tianyuan Zhu ◽  
Fei Chen ◽  
Xiang Ding ◽  
Qiao Hu ◽  
...  

The development of new appropriate anode material with low cost is still main issue for sodium-ion batteries (SIBs) and lithium-ion batteries (LIBs). Here, Cr2P2O7 with an in-situ formed carbon layer has been fabricated through a facile solid-state method and its storage performance in SIBs and LIBs has been reported first. The Cr2P2O7@C delivers 238 mA h g−1 and 717 mA h g−1 at 0.05 A g−1 in SIBs and LIBs, respectively. A capacity of 194 mA h g−1 is achieved in SIBs after 300 cycles at 0.1 A g−1 with a high capacity retention of 92.4%. When tested in LIBs, 351 mA h g−1 is maintained after 600 cycles at 0.1 A g−1. The carbon coating layer improves the conductivity and reduces the side reaction during the electrochemical process, and hence improves the rate performance and enhances the cyclic stability.

Author(s):  
Shaohua Lu ◽  
Weidong Hu ◽  
Xiaojun Hu

Due to their low cost and improved safety compared to lithium-ion batteries, sodium-ion batteries have attracted worldwide attention in recent decades.


2021 ◽  
Vol 10 (1) ◽  
pp. 210-220
Author(s):  
Fangfang Wang ◽  
Ruoyu Hong ◽  
Xuesong Lu ◽  
Huiyong Liu ◽  
Yuan Zhu ◽  
...  

Abstract The high-nickel cathode material of LiNi0.8Co0.15Al0.05O2 (LNCA) has a prospective application for lithium-ion batteries due to the high capacity and low cost. However, the side reaction between the electrolyte and the electrode seriously affects the cycling stability of lithium-ion batteries. In this work, Ni2+ preoxidation and the optimization of calcination temperature were carried out to reduce the cation mixing of LNCA, and solid-phase Al-doping improved the uniformity of element distribution and the orderliness of the layered structure. In addition, the surface of LNCA was homogeneously modified with ZnO coating by a facile wet-chemical route. Compared to the pristine LNCA, the optimized ZnO-coated LNCA showed excellent electrochemical performance with the first discharge-specific capacity of 187.5 mA h g−1, and the capacity retention of 91.3% at 0.2C after 100 cycles. The experiment demonstrated that the improved electrochemical performance of ZnO-coated LNCA is assigned to the surface coating of ZnO which protects LNCA from being corroded by the electrolyte during cycling.


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.


Nanomaterials ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 996 ◽  
Author(s):  
Jiang ◽  
Yan ◽  
Du ◽  
Kang ◽  
Du ◽  
...  

The spherical-graphite/Fe3O4 composite has been successfully fabricated by a simple two-step synthesis strategy. The oxygenous functional groups between spherical-graphite and Fe3O4 benefit the loading of hollow Fe3O4 nanospheres. All of the composites as anodes for half cells show higher lithium storage capacities and better rate performances in comparison with spherical-graphite. The composite containing 39 wt% of hollow Fe3O4 nanospheres exhibits a high reversible capacity of 806 mAh g−1 up to 200 cycles at 0.5 A g−1. When cycled at a higher current density of 2 A g−1, a high charge capacity of 510 mAh g−1 can be sustained, even after 1000 long cycles. Meanwhile, its electrochemical performance for full cells was investigated. When matching with LiCoO2 cathode, its specific capacity can remain at 137 mAh g−1 after 100 cycles. The outstanding lithium storage performance of the spherical-graphite/Fe3O4 composite may depend on the surface modification of high capacity hollow Fe3O4 nanospheres. This work indicates that the spherical-graphite/Fe3O4 composite is one kind of prospective anode material in future energy storage fields.


2015 ◽  
Vol 39 (11) ◽  
pp. 8249-8253 ◽  
Author(s):  
Weiyu Zhang ◽  
Jinjing Zhang ◽  
Meiling Zhang ◽  
Chenxing Zhang ◽  
Anping Zhang ◽  
...  

A cyanogel-derived three-dimensional nanoporous In2O3–Co3O4 hybrid network as a high-capacity and long-life anode material for lithium-ion batteries.


2019 ◽  
Vol 7 (27) ◽  
pp. 16541-16552 ◽  
Author(s):  
Xuefang Xie ◽  
Yang Hu ◽  
Guozhao Fang ◽  
Xinxin Cao ◽  
Bo Yin ◽  
...  

In situ formed hierarchical FeS nanosheets supported by a TiO2/C fibrous backbone exhibit higher rate capability and cycling stability as anode materials for lithium ion batteries.


2020 ◽  
Vol 7 (2) ◽  
pp. 340-346 ◽  
Author(s):  
Rong Cui ◽  
Jiande Lin ◽  
Xinxin Cao ◽  
Pengfei Hao ◽  
Xuefang Xie ◽  
...  

LiCuVO4/LiVO3/C porous nanotubes were fabricated by an efficient electrospinning method with subsequent calcination and exhibit excellent electrochemical performance as an anode material for lithium ion batteries.


2014 ◽  
Vol 926-930 ◽  
pp. 938-941
Author(s):  
Peng Ding ◽  
Li Li Guo ◽  
Zhang Ling ◽  
Mu Yi Yin ◽  
Fu Lin Liu ◽  
...  

Transition metal oxaides especially manganese monoxide (MnO) are being intensively studied as candidate anode materials for next generation lithium ion batteries in high efficiency energy storage applications. In this paper, MnO/CNTs composite is prepared by hydrothermal reaction and subsequent annealing process. The results of XRD and SEM showed that MnO/CNTs composite is rod-like with good crystallinity, and its diameter is about 300 nm. It could deliver a reversible charge capacity of 689.6 mA h g-1at the current density of 14.4 mA g-1, and the specific discharge capacity is 500.5 mA h g-1after 185 cycles. All the above makes MnO a promising anode material for lithium ion batteries with high capacity, long life time, low cost and environmental benignity.


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