Pliable Embedded-Type Paper Electrode of Hollow Metal Oxide@Porous Graphene with Abnormal but Superior Rate Capability for Lithium-Ion Storage

2017 ◽  
Vol 1 (1) ◽  
pp. 48-55 ◽  
Author(s):  
Xiaoting Zhang ◽  
Jisheng Zhou ◽  
Xiaohong Chen ◽  
Huaihe Song
Nanoscale ◽  
2019 ◽  
Vol 11 (37) ◽  
pp. 17478-17484 ◽  
Author(s):  
Dongyang Xue ◽  
Fangfang Xue ◽  
Xiaoping Lin ◽  
Fengyi Zong ◽  
Jianmin Zhang ◽  
...  

A series of multi-shelled hollow metal oxide spheres were synthesized by a facile universal self-templated approach and ZnCo2O4 spheres exhibited excellent cycling durability and prominent rate capability.


2016 ◽  
Vol 4 (2) ◽  
pp. 362-367 ◽  
Author(s):  
Bin Luo ◽  
Tengfei Qiu ◽  
Long Hao ◽  
Bin Wang ◽  
Meihua Jin ◽  
...  

3D graphene-templated tin-based foams with tunable pore structures and uniform carbon coating have been successfully developed, achieving superior cycling stability and rate capability for lithium ion storage.


2019 ◽  
Vol 19 (6) ◽  
pp. 3610-3615 ◽  
Author(s):  
Lifeng Wang ◽  
Kaiyuan Wei ◽  
Pengjun Zhang ◽  
Hong Wang ◽  
Xiujun Qi ◽  
...  

Potassium-ion batteries (PIBs), as one of the alternatives to lithium-ion batteries (LIBs), have attracted considerable attention on account of the affluence and low-cost of potassium. Moreover, CoC2O4 and graphene oxide (GO) have been used very well in lithium-ion batteries. Hence, the hybrid CoC2O4/GO was investigated as a new anode material for PIBs. The hybrid CoC2O4/GO was synthesized by a facile and cheap method combined with supersonic dispersion. Electrochemical measurements reveal that the hybrid CoC2O4/GO delivered an excellent cycling stability of 166 mAh g−1 at 50 mA g−1 and a superior rate capability even at 1 A g−1. These results demonstrate although the cycle ability was insufficient for practical applications, transition-metal oxalates composites can still bring new hope to the development of PIBs.


RSC Advances ◽  
2015 ◽  
Vol 5 (51) ◽  
pp. 41179-41185 ◽  
Author(s):  
Xiaolei Wang ◽  
Ge Li ◽  
Ricky Tjandra ◽  
Xingye Fan ◽  
Xingcheng Xiao ◽  
...  

Nanocomposites of Nb2O5 NCs in situ grown on CNTs are successfully developed with excellent rate capability, leading to the successful fabrication of asymmetric supercapacitors with high energy and power density and long-term cycling stability.


2019 ◽  
Vol 7 (38) ◽  
pp. 21766-21773 ◽  
Author(s):  
Shixue Zhang ◽  
Huan Liu ◽  
Bin Cao ◽  
Qizhen Zhu ◽  
Peng Zhang ◽  
...  

A Ti3C2Tx/CNTs@P nanohybrid with stable Ti–O–P bonds is simply fabricated, which exhibits high capacity, excellent long-term cycling stability and superior rate capability as an anode for lithium ion batteries.


2020 ◽  
Vol 20 (11) ◽  
pp. 7034-7038 ◽  
Author(s):  
Mookala Premasudha ◽  
Bhumi Reddy Srinivasulu Reddy ◽  
Ki-Won Kim ◽  
Nagireddy Gari Subba Reddy ◽  
Jou-Hyeon Ahn ◽  
...  

In this work, the hydrothermal method was employed to produce SnO2/rGO as anode material. Nanostructured SnO2 was prepared to enhance reversibility and to deal with the undesirable volume changes during cycling. The SnO2/rGO hybrid exhibits long cycle life in lithium-ion storage capacity and rate capability with an initial discharge capacity of 1327 mAh/g at 0.1 C rate. These results demonstrate that a fabricated SnO2/rGO matrix will be a possible way to obtain high rate performance.


RSC Advances ◽  
2015 ◽  
Vol 5 (45) ◽  
pp. 35598-35607 ◽  
Author(s):  
Qun Li ◽  
Longwei Yin ◽  
Xueping Gao

A 3D interconnected porous silicon/carbon hybrid material is synthesized by a controllably magnesiothermic reduction route from silica aerogels and exhibits excellent lithium ion storage performance with long cyclic life and perfect rate capability.


1999 ◽  
Vol 575 ◽  
Author(s):  
D. Singh ◽  
R. Houriet ◽  
R. Vacassy ◽  
H. Hofinann ◽  
V. Craciun ◽  
...  

ABSTRACTMost studies focused on fundamental aspects of cathode materials in lithium ion battery employ porous electrodes, which are made of polymer bonded transition metal oxide powders mixed with conductors such as carbon. However, the powder morphology and the presence of carbon and polymeric binders affect the physical, chemical and electrochemical behaviors significantly. Therefore, transition metal oxide based materials in thin film form, which are dense and contain no additives, are emerging as promising alternatives to study fundamental properties in lithium ion batteries. Pulsed laser ablation (PLD) was used to deposit highly textured thin and thick porous films of LiMn2O4. Effect of various parameters such as substrates and deposition conditions were studied on the microstructure of these films. Microstructure studies of these films were carried out using x-ray diffraction and scanning electron microscopy. The electrochemical measurements were carried out in a glove box using cyclic voltammetery, electrochemical cycling and AC Impedance spectroscopy in a half-cell configuration with lithium metal as an anode and reference electrode and LiMn2O4 film as a cathode. Results indicate differences in film morphology greatly effect electrochemical kinetics of Li intercalation and de-intercalation. Thin films show good electrochemical characteristics such as high rate capability, good coulombic efficiency and rechargeability till 400 cycles.


2017 ◽  
Vol 10 (1) ◽  
pp. 400-407 ◽  
Author(s):  
Paul F. Smith ◽  
Alexander B. Brady ◽  
Seung-Yong Lee ◽  
Andrea M. Bruck ◽  
Eric Dooryhee ◽  
...  

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