Low-dimensional hybrid perovskites as high performance anodes for alkali-ion batteries

2017 ◽  
Vol 5 (35) ◽  
pp. 18634-18642 ◽  
Author(s):  
Mukta Tathavadekar ◽  
Shrreya Krishnamurthy ◽  
Aparna Banerjee ◽  
Satyawan Nagane ◽  
Yogesh Gawli ◽  
...  

Molecularly engineered low-dimensional hybrid perovskites are demonstrated as anode materials for alkali-ion batteries. The electrochemical performance can be dramatically improved by tuning the dimensionality of halide-perovskites from 3D to 2D to 1D.

2016 ◽  
Vol 4 (21) ◽  
pp. 8402-8411 ◽  
Author(s):  
Xiaochuan Duan ◽  
Hui Huang ◽  
Songhua Xiao ◽  
Jiwei Deng ◽  
Gang Zhou ◽  
...  

3D hierarchical CuO mesocrystals have been prepared from ionic liquid precursors under hydrothermal conditions, and exhibited superior electrochemical performance as anode materials, which offers a facile route for designing high-performance electrodes for Li-ion batteries.


2019 ◽  
Vol 3 (6) ◽  
pp. 1509-1516
Author(s):  
Mei Ma ◽  
Wenzhuo Shen ◽  
Jiali Zhang ◽  
Shouwu Guo

A novel rGO/Sn/Na2Zr(PO4)2 nanocomposite exhibits attractive electrochemical performance as an anode for lithium/sodium ion batteries.


NANO ◽  
2020 ◽  
Vol 15 (09) ◽  
pp. 2050117
Author(s):  
Meng Sun ◽  
Sijie Li ◽  
Jiajia Zou ◽  
Zhipeng Cui ◽  
Qingye Zhang ◽  
...  

ZnMn2O4 nanoparticles (NPs) wrapped by reduced graphene oxide (rGO) were fabricated via a two-step solvothermal method and used as an anode material for lithium-ion batteries (LIBs). Compared to pure ZnMn2O4, the ZnMn2O4 NPs/rGO composites deliver higher capacities of 1230 mAh g−1 and 578 mAh g−1 after 200 cycles at a current density of 100 mA g−1 and 500 mA g−1, respectively. The enhanced electrochemical performance of ZnMn2O4 NPs/rGO composites is mainly attributed to a distinctive structure (ZnMn2O4 NPs surrounded by flexible rGO), which can promote the diffusion of Li+, accelerate the transport of electrons and buffer volume expansion during the Li+ insertion/extraction process. Furthermore, the rGO sheets can effectively prevent the agglomeration of ZnMn2O4 NPs, thus, improving structural stability of the composites. The excellent electrochemical performance indicates that such ZnMn2O4 NPs/rGO composite structure has a great potential for high-performance LIBs.


2015 ◽  
Vol 3 (33) ◽  
pp. 17403-17411 ◽  
Author(s):  
Beibei Wang ◽  
Gang Wang ◽  
Hui Wang

We propose a novel strategy to fabricate Mo2C/GR hybrids through a simple and environmentally friendly carburization process. The as-prepared Mo2C/GR hybrids display significantly improved electrochemical performance compared to bulk Mo2C and pure GR.


2014 ◽  
Vol 2 (26) ◽  
pp. 10000-10006 ◽  
Author(s):  
Kai Su ◽  
Chao Wang ◽  
Honggang Nie ◽  
Yan Guan ◽  
Feng Liu ◽  
...  

3D porous MnO/C anode materials with controllable pore size are synthesized for effectively optimizing the electrochemical performance.


2016 ◽  
Vol 40 (11) ◽  
pp. 9679-9683 ◽  
Author(s):  
Xin Liu ◽  
Shichao Zhang ◽  
Yalan Xing ◽  
Shengbin Wang ◽  
Puheng Yang ◽  
...  

N-doped porous carbon coated graphene sheet anode materials exhibit fascinating electrochemical performance with a capacity of 1040 mA h g−1.


Molecules ◽  
2019 ◽  
Vol 24 (17) ◽  
pp. 3149 ◽  
Author(s):  
Linglong Kong ◽  
Lu Wang ◽  
Deye Sun ◽  
Su Meng ◽  
Dandan Xu ◽  
...  

The aggregation morphology of anode materials plays a vital role in achieving high performance lithium-ion batteries. Herein, Co3O4 anode materials with different aggregation morphologies were successfully prepared by modulating the morphology of precursors with different cobalt sources by the mild coprecipitation method. The fabricated Co3O4 can be flower-like, spherical, irregular, and urchin-like. Detailed investigation on the electrochemical performance demonstrated that flower-like Co3O4 consisting of nanorods exhibited superior performance. The reversible capacity maintained 910.7 mAh·g−1 at 500 mA·g−1 and 717 mAh·g−1 at 1000 mA·g−1 after 500 cycles. The cyclic stability was greatly enhanced, with a capacity retention rate of 92.7% at 500 mA·g−1 and 78.27% at 1000 mA·g−1 after 500 cycles. Electrochemical performance in long-term storage and high temperature conditions was still excellent. The unique aggregation morphology of flower-like Co3O4 yielded a reduction of charge-transfer resistance and stabilization of electrode structure compared with other aggregation morphologies.


2021 ◽  
Vol 14 (4) ◽  
pp. 2357-2368
Author(s):  
Ke Meng ◽  
Xiao Wang ◽  
Zhimin Li ◽  
Zhou Liu ◽  
Zhi Qiao ◽  
...  

Inspired and guided by the structural characteristics and degradation kinetics of a low-dimensional perovskite (LDP) film, an effective self-passivation strategy is proposed to fabricate the high-performance LDP based solar cells.


RSC Advances ◽  
2015 ◽  
Vol 5 (44) ◽  
pp. 34777-34787 ◽  
Author(s):  
Longsheng Zhang ◽  
Wei Fan ◽  
Weng Weei Tjiu ◽  
Tianxi Liu

3D porous hybrids of defect-rich MoS2/graphene nanosheets (dr-MoS2/GNS) exhibit extraordinary electrochemical performance as anode materials for high performance lithium ion batteries (LIBs).


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