Critical roles of reduced graphene oxide in the electrochemical performance of silicon/reduced graphene oxide hybrids for high rate capable lithium-ion battery anodes

2021 ◽  
pp. 139753
Author(s):  
Yash Joshi ◽  
Avinash Umasankaran ◽  
Christopher Klaassen ◽  
Mohammed AlAmer ◽  
Yong Lak Joo
2017 ◽  
Vol 228 ◽  
pp. 241-250 ◽  
Author(s):  
Renzong Hu ◽  
Houpo Zhang ◽  
Yunfei Bu ◽  
Hanyin Zhang ◽  
Bote Zhao ◽  
...  

NANO ◽  
2020 ◽  
Vol 15 (11) ◽  
pp. 2050149
Author(s):  
Xiangyu Shi ◽  
Jifei Liu ◽  
Jianfeng Dai ◽  
Yufeng Qi

Silicon carbon nanoparticles (SCNPs) coated with reduced graphene oxide (rGO) were fabricated by a hydrothermal method and subsequently by a simple heat treatment process. SCNPs/rGO exhibit excellent electrochemical performance which not only attributes the rGO layer to inhibit the volumetric expansion of silicon and reduce the impedance between the active material and lithium ions during the electrochemical process, but also improves the electrical conductivity of SCNPs/rGO. The as-prepared compound was cyclically tested at a current density of 150[Formula: see text]mA/g, with the first charge and discharge capacities of 3152.2[Formula: see text]mAh/g and 3342.7[Formula: see text]mAh/g, respectively. Moreover, the electrochemical performance of SCNPs/rGO was better than SCNPs. The [Formula: see text] values for fresh battery, after 1 cycle and 100 cycles, are 120.9[Formula: see text][Formula: see text], 120.5[Formula: see text][Formula: see text] and 104[Formula: see text][Formula: see text]. Thus, compared with SCNPs, SCNPs/rGO exhibited lower overall impedance values. These results indicate that the addition of graphene layer significantly improved the electrochemical performance of SCNPs electrodes and reduced the internal resistance of the battery.


2017 ◽  
Vol 4 (3) ◽  
pp. 541-546 ◽  
Author(s):  
Lin Fu ◽  
Chuanjian Zhang ◽  
Bingbing Chen ◽  
Zhonghua Zhang ◽  
Xiaogang Wang ◽  
...  

Ternary Cu2GeS3 (CGS) serves as lithium ion battery anode materials for the first time, whose electrochemical performance is significantly improved by the introduction of reduced graphene oxide.


2021 ◽  
Vol 590 ◽  
pp. 580-590
Author(s):  
Qingke Tan ◽  
Shouchun Bao ◽  
Xiangli Kong ◽  
Xiang Zheng ◽  
Zhengguan Xu ◽  
...  

2016 ◽  
Vol 4 (40) ◽  
pp. 15302-15308 ◽  
Author(s):  
Zhigao Luo ◽  
Jiang Zhou ◽  
Lirong Wang ◽  
Guozhao Fang ◽  
Anqiang Pan ◽  
...  

We report the synthesis of a novel 2D hybrid nanosheet constructed by few layered MoSe2 grown on reduced graphene oxide (rGO), which exhibits excellent electrochemical performance as anodes for lithium ion batteries.


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