Graphene Oxide-Induced Carbon Nanoporous Framework towards Advanced Composite Anode Material for Lithium-Ion Batteries

Author(s):  
Guangfeng Shi ◽  
Jiale Zhou ◽  
Rong Zeng ◽  
Bing Na ◽  
Shufen Zou

Abstract Porous structures in anode materials are of importance to accommodate volume dilation of active matters. In the present case, a carbon nanoporous framework is hydrothermally synthesized from glucose in the presence of graphene oxide (GO), together with in situ active Fe3O4 nanoparticles within it. The composite anode material has outstanding electrochemical performance, including high specific capacity, excellent cyclic stability and superior rate capability. The specific capacity stays at 830.8 mAhg−1 after 200 cycles at 1 A/g, equivalent to a high capacity retention of 88.7%. The findings provide valuable clues to tailor morphology of hydrothermally carbonized glucose for advanced composite anode materials of lithium-ion batteries.

2015 ◽  
Vol 3 (16) ◽  
pp. 8683-8692 ◽  
Author(s):  
Lingyun Guo ◽  
Qiang Ru ◽  
Xiong Song ◽  
Shejun Hu ◽  
Yudi Mo

The as-prepared pineapple-shaped ZCO with a porous nanostructure shows a high specific capacity, superior rate capability and excellent cycling stability when used as an anode material for LIBs.


2016 ◽  
Vol 52 (10) ◽  
pp. 2035-2038 ◽  
Author(s):  
Chao Li ◽  
Xiaoshi Hu ◽  
Xiaobing Lou ◽  
Qun Chen ◽  
Bingwen Hu

Bimetallic coordination polymers (BiCPs) with Zn and Co were synthesized by a simple method and applied as anode materials for the first time. When used as anode materials in LIBs, the as-prepared BiCPs exhibit ultra-high capacity and impressive rate capability.


Materials ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1071
Author(s):  
Xuli Ding ◽  
Daowei Liang ◽  
Hongda Zhao

Although the silicon oxide (SiO2) as an anode material shows potential and promise for lithium-ion batteries (LIBs), owing to its high capacity, low cost, abundance, and safety, severe capacity decay and sluggish charge transfer during the discharge–charge process has caused a serious challenge for available applications. Herein, a novel 3D porous silicon oxide@Pourous Carbon@Tin (SiO2@Pc@Sn) composite anode material was firstly designed and synthesized by freeze-drying and thermal-melting self-assembly, in which SiO2 microparticles were encapsulated in the porous carbon as well as Sn nanoballs being uniformly dispersed in the SiO2@Pc-like sesame seeds, effectively constructing a robust and conductive 3D porous Jujube cake-like architecture that is beneficial for fast ion transfer and high structural stability. Such a SiO2@Pc@Sn micro-nano hierarchical structure as a LIBs anode exhibits a large reversible specific capacity ~520 mAh·g−1, initial coulombic efficiency (ICE) ~52%, outstanding rate capability, and excellent cycling stability over 100 cycles. Furthermore, the phase evolution and underlying electrochemical mechanism during the charge–discharge process were further uncovered by cyclic voltammetry (CV) investigation.


2018 ◽  
Vol 5 (3) ◽  
pp. 559-567 ◽  
Author(s):  
Yanming Wang ◽  
Jia Li ◽  
Sheng Chen ◽  
Bing Li ◽  
Guangping Zhu ◽  
...  

Monodisperse NiCo2O4 porous microcubes were used as anode materials for lithium-ion batteries, and they exhibit outstanding rate capability and cycling stability.


2016 ◽  
Vol 16 (4) ◽  
pp. 4136-4140 ◽  
Author(s):  
Wenjuan Jiang ◽  
Xike Zhao ◽  
Zengsheng Ma ◽  
Jianguo Lin ◽  
Chunsheng Lu

SnO2 is considered as one of the most promising anode materials for next generation lithium-ion batteries, however, how to build energetic SnO2-based electrode architectures has still remained a big challenge. In this article, we developed a facile method to prepare SnO2/reduced graphene oxide (RGO) nanocomposite for an anode material of lithium-ion batteries. It is shown that, at the current density of 0.25 A·g−1, SnO2/RGO has a high initial capacity of 1705 mAh·g−1 and a capacity retention of 500 mAh·g−1 after 50 cycles. The total specific capacity of SnO2/RGO is higher than the sum of their pure counterparts, indicating a positive synergistic effect on the electrochemical performance.


2017 ◽  
Vol 41 (15) ◽  
pp. 7102-7107 ◽  
Author(s):  
Lingling Zhang ◽  
Danhua Ge ◽  
Hongbo Geng ◽  
Junwei Zheng ◽  
Xueqin Cao ◽  
...  

The porous Mn2O3 nanospheres embedded in reduced graphene oxide delivered superior lithium storage ability including high reversible specific capacity, cycling stability and rate performances as an anode material in lithium-ion batteries.


Nanoscale ◽  
2020 ◽  
Vol 12 (10) ◽  
pp. 5812-5816 ◽  
Author(s):  
Jinyun Liu ◽  
Xirong Lin ◽  
Tianli Han ◽  
Qianqian Lu ◽  
Jiawei Long ◽  
...  

Metallic germanium (Ge) as the anode can deliver a high specific capacity and high rate capability in lithium ion batteries.


Nanomaterials ◽  
2019 ◽  
Vol 10 (1) ◽  
pp. 9 ◽  
Author(s):  
Kwang Hyun Park ◽  
Byung Gon Kim ◽  
Sung Ho Song

Graphene nanosheets have been among the most promising candidates for a high-performance anode material to replace graphite in lithium ion batteries (LIBs). Studies in this area have mainly focused on nanostructured electrodes synthesized by graphene oxide (GO) or reduced graphene oxide (rGO) and surface modifications by a chemical treatment. Herein, we propose a cost-effective and reliable route for generating a defect-free, nanoporous graphene nanostructure (df-GNS) through the sequential insertion of pyridine into a potassium graphite intercalation compound (K-GIC). The as-prepared df-GNS preserves the intrinsic property of graphene without any crystal damage, leading to micro-/nano-porosity (microporosity: ~10–50 µm, nanoporosity: ~2–20 nm) with a significantly large specific surface area. The electrochemical performance of the df-GNS as an anode electrode was assessed and showed a notably enhanced capacity, rate capability, and cycle stability, without fading in capacity or decaying. This is because of the optimal porosity, with perfect preservation of the graphene crystal, allowing faster ion access and a high amount of electron pathways onto the electrode. Therefore, our work will be very helpful for the development of anode and cathode electrodes with higher energy and power performance requirements.


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