High capacity and exceptional cycling stability of ternary metal sulfide nanorods as Li ion battery anodes

2015 ◽  
Vol 51 (69) ◽  
pp. 13350-13353 ◽  
Author(s):  
Dhrubajyoti Bhattacharjya ◽  
Apurba Sinhamahapatra ◽  
Jae-Jung Ko ◽  
Jong-Sung Yu

Ternary spinel NiCo2S4 nanorods demonstrate high specific capacity and outstanding cycling stability as Li ion battery anodes due to restriction of a polymeric gel passivation layer by the CMC–PAA composite binder.

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Die Su ◽  
Yi Pei ◽  
Li Liu ◽  
Zhixiao Liu ◽  
Junfang Liu ◽  
...  

AbstractWearable and portable mobile phones play a critical role in the market, and one of the key technologies is the flexible electrode with high specific capacity and excellent mechanical flexibility. Herein, a wire-in-wire TiO2/C nanofibers (TiO2 ww/CN) film is synthesized via electrospinning with selenium as a structural inducer. The interconnected carbon network and unique wire-in-wire nanostructure cannot only improve electronic conductivity and induce effective charge transports, but also bring a superior mechanic flexibility. Ultimately, TiO2 ww/CN film shows outstanding electrochemical performance as free-standing electrodes in Li/K ion batteries. It shows a discharge capacity as high as 303 mAh g−1 at 5 A g−1 after 6000 cycles in Li half-cells, and the unique structure is well-reserved after long-term cycling. Moreover, even TiO2 has a large diffusion barrier of K+, TiO2 ww/CN film demonstrates excellent performance (259 mAh g−1 at 0.05 A g−1 after 1000 cycles) in K half-cells owing to extraordinary pseudocapacitive contribution. The Li/K full cells consisted of TiO2 ww/CN film anode and LiFePO4/Perylene-3,4,9,10-tetracarboxylic dianhydride cathode possess outstanding cycling stability and demonstrate practical application from lighting at least 19 LEDs. It is, therefore, expected that this material will find broad applications in portable and wearable Li/K-ion batteries.


2019 ◽  
Vol 3 (1) ◽  
pp. 245-250 ◽  
Author(s):  
Kingshuk Roy ◽  
Malik Wahid ◽  
Dhanya Puthusseri ◽  
Apurva Patrike ◽  
Subas Muduli ◽  
...  

The exceptionally high theoretical capacity of silicon as a Li-ion battery anode material is hard to realize and stabilize in practice due to huge volume changes during lithiation/de-lithiation. With the use of black phosphorus additive we could achieve tremendous stability due to strain management.


ChemSusChem ◽  
2019 ◽  
Vol 12 (16) ◽  
pp. 3742-3746 ◽  
Author(s):  
Padmini Pandey ◽  
Neha Sharma ◽  
Reena A. Panchal ◽  
S. W. Gosavi ◽  
Satishchandra Ogale

2016 ◽  
Vol 52 (76) ◽  
pp. 11414-11417 ◽  
Author(s):  
Kangzhe Cao ◽  
Huiqiao Liu ◽  
Xiaohong Xu ◽  
Yijing Wang ◽  
Lifang Jiao

FeMnO3particles were synthesized and evaluated as a Li-ion battery anode, exhibiting a high capacity and long-term cycling stability.


2019 ◽  
Vol 7 (22) ◽  
pp. 13727-13735 ◽  
Author(s):  
Jinjin Wang ◽  
Jian-Gan Wang ◽  
Huanyan Liu ◽  
Chunguang Wei ◽  
Feiyu Kang

Zinc ion stabilized MnO2 nanospheres with a flower-like morphology and mesoporous texture are prepared, and they show high specific capacity and superior cycling stability for Zn-ion batteries.


RSC Advances ◽  
2017 ◽  
Vol 7 (80) ◽  
pp. 50973-50980 ◽  
Author(s):  
Juan Wang ◽  
Chao Li ◽  
Zhenyu Yang ◽  
Deliang Chen

Novel MnO/CNFs@G membrane by electrospinning and APCVD; this anode with high specific capacity and longest cycling life is of great interest to high energy thin film or flexible Li-ion battery.


2012 ◽  
Vol 1440 ◽  
Author(s):  
M. Taha Demirkan ◽  
Xin Li ◽  
Bingqing Wei ◽  
Tansel Karabacak

AbstractIn this work, we demonstrate a new density modulated multilayered silicon thin film anode approach that can provide a robust high capacity electrode for Li-ion batteries. These films have the ability to tolerate large volume changes due to their controlled microstructure. Silicon films with alternating layers of high/low material density were deposited using a DC sputtering system. Density of the individual layers was controlled by simply changing the working gas pressure during sputtering. Samples of Si films having thicknesses of 460 nm with different number of high/low density layers have been deposited on Cu current collectors. The electrochemical performance of the multilayered anode material was evaluated using a galvanostatic battery testing system at C/10 rate. After reaching a stabilized phase the battery cell showed a high coulombic efficiency of 96% to 99% and reversible specific capacity of 666 mAh g-1 (after 100 cycles). Low-density layers are believed to be acting as compliant sheets during volume expansion making the films more durable compared to conventional Si film anodes. The results indicate that density modulated multilayer Si thin films can be used to improve the mechanical properties of Li-ion battery anodes leading to high reversible capacity values even after high number of cycles.


Nanomaterials ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 808 ◽  
Author(s):  
Daniel Alonso-Domínguez ◽  
María Pico ◽  
Inmaculada Álvarez-Serrano ◽  
María López

New iron-oxide-based anodes are prepared by an environmentally-friendly and low-cost route. The analysis of the composition, structure, and microstructure of the samples reveals the presence of a major hematite phase, which is accompanied by a certain concentration of an oxyhydroxide phase, which can act as a “lithium-reservoir”. By using sodium alginate as a binder, the synthesized anodes display superior electrochemical response, i.e., high specific capacity values and high stability, not only versus Li but also versus a high voltage cathode in a full cell. From these bare materials, clay-supported anodes are further obtained using sepiolite and bentonite natural silicates. The electrochemical performance of such composites is improved, especially for the sepiolite-containing one treated at 400 °C. The thermal treatment at this temperature provides the optimal conditions for a synergic nano-architecture to develop between the clay and the hematite nanoparticles. High capacity values of ~2500 mA h g−1 after 30 cycles at 1 A g−1 and retentions close to 92% are obtained. Moreover, after 450 cycles at 2 A g−1 current rate, this composite electrode displays values as high as ~700 mA h g−1. These results are interpreted taking into account the interactions between the iron oxide nanoparticles and the sepiolite surface through hydrogen bonds. The electrochemical performance is not only dependent on the oxidation state and particle morphology, but the composition is revealed as a key feature.


2018 ◽  
Vol 47 (37) ◽  
pp. 13222-13228 ◽  
Author(s):  
Shu-Biao Xia ◽  
Fu-Shao Li ◽  
Xiang Shen ◽  
Xue Li ◽  
Fei-Xiang Cheng ◽  
...  

A zinc-based coordination polymer with photochromic 4,4′-bipyridinium derivatives as redox active building units is demonstrated as an anode material for Li-ion batteries.


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