Ultrafast lithium storage in TiO2–bronze nanowires/N-doped graphene nanocomposites

2015 ◽  
Vol 3 (8) ◽  
pp. 4180-4187 ◽  
Author(s):  
Xiao Yan ◽  
Yanjuan Li ◽  
Malin Li ◽  
Yongcheng Jin ◽  
Fei Du ◽  
...  

A TiO2–bronze/N-doped graphene nanocomposite was prepared by a facile method. The material exhibits outstanding rate capacity. A high reversible capacity of 101.6 mA h g−1 is obtained at the 100C rate, indicating its great potential for use in high power lithium ion batteries.

2013 ◽  
Vol 709 ◽  
pp. 157-160 ◽  
Author(s):  
Xiao Yi Zhu ◽  
Jian Jiang Li ◽  
Xi Lin She ◽  
Lin Hua Xia

A facile hydrothermal route has been developed to prepare MnO2/graphene nanocomposites and MnO2 nanoparticles are uniformly anchored on graphene nanosheets. The composite were studied as the anode material for lithium-ion batteries. The surface of graphene is modified by MnO2 nanoparticles which are 10-30 nm in size and homogeneously anchor on graphene sheets. The composite exhibits superior lithium battery performance with higher reversible capacity and better cycling performance. The reversible capacity is up to 781.5 mAh g-1 at a current of 100 mA g-1 and maintains 96% after 50 cycles. The enhanced lithium storage performance is due to the synergetic effect of graphene and MnO2.


2018 ◽  
Vol 42 (20) ◽  
pp. 16564-16570 ◽  
Author(s):  
Dhandapani Navadeepthy ◽  
Subramani Bhuvaneswari ◽  
Raju Prakash ◽  
Chinnusamy Viswanathan ◽  
Nagamony Ponpandian

The challenges in developing more efficient lithium ion (Li-ion) batteries as a power source have been the subject of tremendous research due to the increase in demand for high-power unplugged electronics.


RSC Advances ◽  
2015 ◽  
Vol 5 (65) ◽  
pp. 52993-52997 ◽  
Author(s):  
Hongbo Geng ◽  
Shuangshuang Li ◽  
Yue Pan ◽  
Yonggang Yang ◽  
Junwei Zheng ◽  
...  

The PH-Fe3O4@C/Cl spheres were successfully fabricated through a novel and controllable route, which could deliver superior lithium storage performance in terms of high reversible capacity, stable cycling and rate performances.


1994 ◽  
Vol 369 ◽  
Author(s):  
R. Yazami ◽  
M. Deschamps

AbstractSeveral types of carbonaceous materials are evaluated as negative electrodes for lithium storage in polymer electrolyte based cells operated at 100ºC. The corresponding faradaic efficiencies of the spherical cycle and the achieved reversible first capacity and rate capacity will be given. A meso carbon yielded a higher capacity than the theoretical 372 mAh/g. This is tentatively explained by the necessary enhancement of the carbon/polymer interfacial properties through the formation of C-Li-O bonding at the carbon surface and by the possible formation of multilayers of lithium on the external a,b planes of disordered carbons. The formation of the passivating layer on the carbon surface will be described.A lithium-ion type battery using coke and LiNiO2 as the negative and positive leads and POE-LiCIO4 was operated at 100ºC and cycled galvanostatically. Good reversible capacity was attained with the LiNiO2 electrode.


2011 ◽  
Vol 56 (12) ◽  
pp. 4532-4539 ◽  
Author(s):  
Peichao Lian ◽  
Xuefeng Zhu ◽  
Shuzhao Liang ◽  
Zhong Li ◽  
Weishen Yang ◽  
...  

2015 ◽  
Vol 8 (3) ◽  
pp. 869-875 ◽  
Author(s):  
Bo Wang ◽  
Wael Al Abdulla ◽  
Dianlong Wang ◽  
X. S. Zhao

LFP@N-GA with (010) facet oriented LFP NPs embedded in N-GA provides both rapid Li+ and electron pathways in the electrode as well as short Li+ diffusion length in LFP crystals.


2018 ◽  
Vol 6 (36) ◽  
pp. 17437-17443 ◽  
Author(s):  
Jonghyun Choi ◽  
Won-Sik Kim ◽  
Kyeong-Ho Kim ◽  
Seong-Hyeon Hong

Tin phosphide (Sn4P3) has emerged as an anode for sodium ion batteries (SIBs) due to its high reversible capacity and low redox potential.


Nanoscale ◽  
2018 ◽  
Vol 10 (37) ◽  
pp. 18010-18018 ◽  
Author(s):  
Yimo Xiang ◽  
Zhigao Yang ◽  
Shengping Wang ◽  
Md. Shahriar A. Hossain ◽  
Jingxian Yu ◽  
...  

Pseudocapacitance, which is the storage of charge based on continuous and fast reversible redox reactions at the surface of the electrodes, is commonly observed in transition metal oxide based LIB anodes.


2021 ◽  
pp. 2150031
Author(s):  
Hai Li ◽  
Chunxiang Lu

As anode material for lithium-ion batteries, graphite has the disadvantage of relatively low specific capacity. In this work, a simple yet effective strategy to overcome the disadvantages by using a composite of flake graphite (FG) and small-sized graphene (SG) has been developed. The FG/SG composite prepared by dispersing FG and SG (90:10 w/w) in ethanol and drying delivers much higher specific capacity than that of individual component except for improved rate capability. More surprisingly, FG/SG composite delivers higher reversible capacity than its theoretical value calculated according to the theoretical capacities of graphite and graphene. Therefore, a synergistic effect between FG and SG in lithium storage is clearly discovered. To explain it, we propose a model that abundant nanoscopic cavities were formed due to physical adhesion between FG and SG and could accommodate extra lithium.


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