A lithium iron phosphate/nitrogen-doped reduced graphene oxide nanocomposite as a cathode material for high-power lithium ion batteries

2014 ◽  
Vol 2 (25) ◽  
pp. 9594-9599 ◽  
Author(s):  
Jong-Pil Jegal ◽  
Kwang-Chun Kim ◽  
Myeong Seong Kim ◽  
Kwang-Bum Kim

Lithium iron phosphate/nitrogen-doped reduced graphene oxide is synthesized with the aid of urea, which exhibits low polarization and excellent rate performance.

2017 ◽  
Vol 19 (11) ◽  
pp. 7498-7505 ◽  
Author(s):  
Yong Li ◽  
Daixin Ye ◽  
Bin Shi ◽  
Wen Liu ◽  
Rui Guo ◽  
...  

Free-standing rGO/MnO2–rGO–CNT flexible membrane with a 2D/3D structure shows improved cycling and rate performance at flat and bending states.


2017 ◽  
Vol 28 (24) ◽  
pp. 18994-19002 ◽  
Author(s):  
Nutpaphat Jarulertwathana ◽  
Viratchara Laokawee ◽  
Warapa Susingrat ◽  
Seong-Ju Hwang ◽  
Thapanee Sarakonsri

2018 ◽  
Vol 42 (16) ◽  
pp. 13241-13248 ◽  
Author(s):  
Junnan Ye ◽  
Jianxin Cheng ◽  
Wangqun Xiao ◽  
Le Xi ◽  
Fei Xie ◽  
...  

Li3VO4 is considered to be one of the most promising anode materials for lithium-ion batteries (LIBs) because of its outstanding safety performance and energy density.


RSC Advances ◽  
2017 ◽  
Vol 7 (84) ◽  
pp. 53126-53134 ◽  
Author(s):  
Xiaoxia Zuo ◽  
Bao Li ◽  
Kun Chang ◽  
Hongwei Tang ◽  
Zhaorong Chang

Recently, nitrogen-doped graphene has attracted significant attention for application as an anode in lithium-ion batteries due to effective modulation of the electronic properties of graphene.


2018 ◽  
Vol 283 ◽  
pp. 46-54 ◽  
Author(s):  
Viratchara Laokawee ◽  
Nutpaphat Jarulertwathana ◽  
Thanapat Autthawong ◽  
Takuya Masuda ◽  
Yothin Chimupala ◽  
...  

Silicon (Si) and Tin (Sn) are promising materials for anodes in lithium-ion batteries due to their high theoretical capacity and abundance of Si on earth. Si can be derived from rice husk which is the main agricultural byproduct in Thailand. However, the challenge of using these materials in lithium-ion batteries is the large volume expansion during charge-discharge process which leads to pulverization of electrodes. The effective solution is to combine these metals as composite with carbon supporter. Nitrogen-doped reduced graphene oxide (NrGO) has been used as carbon supporter in this research because of its high surface area, electrical conductivity and rate of electron transfer. To confirm phases of products, X-rays diffraction techniques (XRD) was measured. The results show that there were peaks of Si, Sn and carbon in XRD patterns. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) were used to illustrate the morphology of prepared composites. From SEM and TEM results, there were small-sized particles of Si and Sn dispersed randomly on NrGO sheets. Furthermore, electrochemical properties of these products were measured to confirm their efficiency as anode materials in lithium-ion batteries by coin cell assembly. The prepared composite can deliver the highest initial capacity of 1600 mA h g-1 and expected to use as anode materials in the next generation lithium-ion batteries.


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