Atomistic Origins of High Rate Capability and Capacity of N-Doped Graphene for Lithium Storage

Nano Letters ◽  
2014 ◽  
Vol 14 (3) ◽  
pp. 1164-1171 ◽  
Author(s):  
Xi Wang ◽  
Qunhong Weng ◽  
Xizheng Liu ◽  
Xuebin Wang ◽  
Dai-Ming Tang ◽  
...  
2019 ◽  
Vol 7 (20) ◽  
pp. 12751-12762 ◽  
Author(s):  
Dezhi Kong ◽  
Ye Wang ◽  
Shaozhuan Huang ◽  
Yew Von Lim ◽  
Jun Zhang ◽  
...  

Highly ordered Na2Ti3O7@N-GQD nanofiber arrays on carbon textiles (CTs) exhibit high flexibility, excellent cycling stability, and high energy/power densities.


2015 ◽  
Vol 3 (9) ◽  
pp. 5054-5059 ◽  
Author(s):  
Chang Yu ◽  
Meng Chen ◽  
Xiaoju Li ◽  
Changtai Zhao ◽  
Lianlong He ◽  
...  

Hierarchically porous carbon architectures composed of a micro-sized porous carbon sphere matrix embedded with hollow nanocapsules are configured, demonstrating a large capacity and an ultra-high rate capability in lithium ion batteries.


Nanoscale ◽  
2015 ◽  
Vol 7 (5) ◽  
pp. 1791-1795 ◽  
Author(s):  
Meng Chen ◽  
Chang Yu ◽  
Shaohong Liu ◽  
Xiaoming Fan ◽  
Changtai Zhao ◽  
...  

RSC Advances ◽  
2015 ◽  
Vol 5 (38) ◽  
pp. 29837-29841 ◽  
Author(s):  
Xiao Zhang ◽  
Yaping Xie ◽  
Yanfang Sun ◽  
Qiao Zhang ◽  
Qiuyu Zhu ◽  
...  

CoFe2O4nanotubes synthesizedviaself-templated strategy based on the Kirkendall effect show large and stable reversible capacity superior high-rate capability, durable cycling life and good capacity retention.


2012 ◽  
Vol 2012 ◽  
pp. 1-10 ◽  
Author(s):  
S. L. Cheekati ◽  
Z. Yao ◽  
H. Huang

Graphene nanosheets (GNS) with attached MnOx nanoparticles are studied in regard to their structure and morphology. The relationship between the lithium storage performances and GNS contents as well as manganese valency was investigated. Experimental results showed that the specimen with 44 wt% GNS and high content of MnO delivered high reversible capacity (over twice of that in graphitic carbon anode), good cycling stability (0.8% fading per cycle), and high rate capability (67% at the 800 mA/g), which are dramatically better than pure Mn3O4. The improvement is attributed to the presence of GNS which provides continuous networks for fast electronic conduction and mechanical flexibility for accommodating the large volume change. The MnOx/GNS hybrid material has the added advantages over pure GNS, benefiting from its lithium storage potential of around 0.5 V which not only ensures high rate capability but also reduces the risk of metallic lithium formation with its safety hazard.


2015 ◽  
Vol 3 (18) ◽  
pp. 9556-9564 ◽  
Author(s):  
Youqi Zhu ◽  
Chuanbao Cao ◽  
Junting Zhang ◽  
Xingyan Xu

2D multicomponent transition-metal oxide nanosheets are synthesized on a large scale via a general method. Ultrathin ZnCo2O4 nanosheets exhibit high lithium storage capacity, excellent cycling stability, and good high-rate capability.


2015 ◽  
Vol 3 (38) ◽  
pp. 19384-19392 ◽  
Author(s):  
Jinxue Guo ◽  
Haifeng Zhu ◽  
Yanfang Sun ◽  
Xiao Zhang

Sandwiched graphene paper@Fe3O4 nanorod array@graphene is constructed as a binder-free integrated electrode with a high reversible capacity, stable cycling performance, an ultralong cycle life of over 1450 cycles and a high-rate capability.


2019 ◽  
Vol 25 (72) ◽  
pp. 16683-16691 ◽  
Author(s):  
Longhai Zhang ◽  
Yanru Zhang ◽  
Senyang Xu ◽  
Chaofeng Zhang ◽  
Linrui Hou ◽  
...  

Nanomaterials ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 68 ◽  
Author(s):  
Wenxing Liu ◽  
Tianhao Yao ◽  
Sanmu Xie ◽  
Yiyi She ◽  
Hongkang Wang

In order to overcome the poor electrical conductivity of titania (TiO2) and silica (SiO2) anode materials for lithium ion batteries (LIBs), we herein report a facile preparation of integrated titania–silica–carbon (TSC) nanofibers via electrospinning and subsequent heat-treatment. Both titania and silica are successfully embedded into the conductive N-doped carbon nanofibers, and they synergistically reinforce the overall strength of the TSC nanofibers after annealing (Note that titania–carbon or silica–carbon nanofibers cannot be obtained under the same condition). When applied as an anode for LIBs, the TSC nanofiber electrode shows superior cycle stability (502 mAh/g at 100 mA/g after 300 cycles) and high rate capability (572, 518, 421, 334, and 232 mAh/g each after 10 cycles at 100, 200, 500, 1000 and 2000 mA/g, respectively). Our results demonstrate that integration of titania/silica into N-doped carbon nanofibers greatly enhances the electrode conductivity and the overall structural stability of the TSC nanofibers upon repeated lithiation/delithiation cycling.


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