Designing and Preparing Carbon Anode Materials Modified with N and Fe-nanoparticle: Creating the Interior Electric Field to Improve Their Electrochemical Performance

2021 ◽  
pp. 138367
Author(s):  
Qiongguang Li ◽  
Menglei Yuan ◽  
Yanhong Wang ◽  
Xingyue Gao ◽  
Xiaowei Li ◽  
...  
Keyword(s):  
Electric Field ◽  
Electrochemical Performance ◽  
Anode Materials ◽  
Carbon Anode

Maximization of sodium storage capacity of pure carbon material used in sodium-ion batteries

2019 ◽  
Vol 7 (27) ◽  
pp. 16149-16160 ◽  
Author(s):  
Jun Kang ◽  
Dae-Yeong Kim ◽  
Seen-Ae Chae ◽  
Nagahiro Saito ◽  
Si-Young Choi ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Anode Materials ◽  
Storage Capacity ◽  
Coulombic Efficiency ◽  
Sodium Ion ◽  
Carbon Anode ◽  
Sodium Ion Batteries ◽  
Pure Carbon ◽  
Materials Used ◽  
Sodium Storage

Generally, carbon anode materials used in sodium-ion batteries do not exhibit good electrochemical performance because of low coulombic efficiency (CE).

Synthesis of self-healing polyurethane and its application in graphene/SnO2-pillared carbon anode materials

2019 ◽  
Vol 28 (5) ◽  
pp. 348-355
Author(s):  
Young Joon Kwon ◽  
Jeevan Kumar Reddy Modigunta ◽  
AM Shanmugharaj ◽  
Hyung Jin Mun ◽  
Sung Hun Ryu
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Electrochemical Performance ◽  
Anode Materials ◽  
Electrochemical Impedance ◽  
Reversible Capacity ◽  
Carbon Anode ◽  
Self Healing ◽  
Oxide Electrodes ◽  
Scanning Electron

Self-healing polyurethane (SHPU) containing disulfide was synthesized and used as a binder to investigate its effect on the performance of reduced graphene oxide–tin oxide electrodes compared to those of polyurethane (PU) and poly(vinylidene difluoride) (PVDF) binders in Li-ion battery (LIB). Structural and morphological characterization of the SHPU and electrode was performed using a tensile tester, Fourier transform infrared spectroscopy, X-ray diffractometer, and scanning electron microscopy. Electrochemical performance was investigated using Galvanostatic charge–discharge and electrochemical impedance measurements. The tensile properties and scanning electron microscopy photographs confirmed the self-healing characteristics of the synthesized SHPU. Electrochemical studies were conducted using an RGO-SnO2 electrode. The electrochemical measurements revealed that the SnO2-pillared carbon-based anode materials with SHPU binder showed improved cycling performances with an excellent reversible capacity retention compared to PU or PVDF. After 1000 cycles at 1C, the surface morphology of the electrode with SHPU showed no cracks or dendrites, while the PVDF-based electrode possessed some cracks and dendrites on its surface. The electrochemical results confirmed that SHPU binder improves the electrochemical performance of LIBs.

Modification based on primary particle level to improve the electrochemical performance of SiO -based anode materials

2020 ◽  
Vol 467 ◽  
pp. 228301
Author(s):  
Yong Jiang ◽  
Shuai Liu ◽  
Yanwei Ding ◽  
Jinlong Jiang ◽  
Wenrong Li ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Anode Materials ◽  
Primary Particle ◽  
Particle Level

Polymorphic Effects on Electrochemical Performance of Conversion‐Based MnO 2 Anode Materials for Next‐Generation Li Batteries

Small ◽  
2021 ◽  
pp. 2006433
Author(s):  
Hyunwoo Kim ◽  
Woosung Choi ◽  
Jaesang Yoon ◽  
Eunkang Lee ◽  
Won‐Sub Yoon
Keyword(s):  
Electrochemical Performance ◽  
Anode Materials ◽  
Next Generation ◽  
Li Batteries

scholarly journals Perspective on Carbon Anode Materials for K + Storage: Balancing the Intercalation‐Controlled and Surface‐Driven Behavior

2021 ◽  
pp. 2100856
Author(s):  
Jiaying Yang ◽  
Yixuan Zhai ◽  
Xiuhai Zhang ◽  
En Zhang ◽  
Hongqiang Wang ◽  
...  
Keyword(s):  
Anode Materials ◽  
Carbon Anode

scholarly journals Polyimide-Derived Carbon-Coated Li4Ti5O12 as High-Rate Anode Materials for Lithium Ion Batteries

Polymers ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 1672
Author(s):  
Shih-Chieh Hsu ◽  
Tzu-Ten Huang ◽  
Yen-Ju Wu ◽  
Cheng-Zhang Lu ◽  
Huei Chu Weng ◽  
...  
Keyword(s):  
Carbon Source ◽  
Electrochemical Performance ◽  
Anode Materials ◽  
Lithium Ion ◽  
High Rate ◽  
Rate Performance ◽  
Molecular Arrangement ◽  
Thermal Imidization ◽  
Carbon Coated ◽  
Graphite Structure

Carbon-coated Li4Ti5O12 (LTO) has been prepared using polyimide (PI) as a carbon source via the thermal imidization of polyamic acid (PAA) followed by a carbonization process. In this study, the PI with different structures based on pyromellitic dianhydride (PMDA), 4,4′-oxydianiline (ODA), and p-phenylenediamine (p-PDA) moieties have been synthesized. The effect of the PI structure on the electrochemical performance of the carbon-coated LTO has been investigated. The results indicate that the molecular arrangement of PI can be improved when the rigid p-PDA units are introduced into the PI backbone. The carbons derived from the p-PDA-based PI show a more regular graphite structure with fewer defects and higher conductivity. As a result, the carbon-coated LTO exhibits a better rate performance with a discharge capacity of 137.5 mAh/g at 20 C, which is almost 1.5 times larger than that of bare LTO (94.4 mAh/g).

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