scholarly journals Preparation of silica/carbon composite from rice husk and its electrochemical pro ertives as anode material in Li-ion batteries

2020 ◽  
Vol 4 (4) ◽  
pp. 767-775
Author(s):  
Vu Tan Phat ◽  
Ngoc Thi Bao Nguyen ◽  
Phung Gia Thinh ◽  
Tuyen Thi Kim Huynh ◽  
Man Van Tran ◽  
...  
Keyword(s):  
Electron Microscope ◽  
Anode Material ◽  
Rice Husk ◽  
Electrode Materials ◽  
Agricultural Waste ◽  
Carbon Composite ◽  
Rechargeable Batteries ◽  
Li Ion Batteries ◽  
Production Scale ◽  
Li Ion

Rice husk is a common agricultural waste and an abundant source in Viet Nam. In terms of composition, rice husk is a silica-rich material (SiO2) so it can be used to prepare negative electrode materials for rechargeable Li-ion batteries. Recent processes of synthesizing the silica materials for the rechargeable batteries are often complex, expensive, and energy-intensive. In this study, KOH was used to treat rice husk ash to obtain SiO2/C porous composite materials. X-ray diffraction results (XRD) showed that the diffraction peak between 22o and 23o (2q ) was characterized of SiO2 material, and the other peaks around 43-44o was featured of carbon material. Scanning electron microscope image (SEM) showed the porous structure with the pore size 3-5 mm.Besides, the amorphous structure with coverage layers was also confirmed through the Transmission Electron Microscope (TEM) images. Preliminary electrochemical results demonstratedthat Li-ion coin cell using the SiO2/C anode material exhibited a high capacity of 1200 mAh/g at a discharge current of 1.0 A/g and maintained 1000 mAh/g after 100 cycles. SiO2/C materials prepared from rice husks were highly promising for battery application thanks to their low cost, stable performance, environmental friendliness, and easy expansion for production scale.

Electrochemical profile of lithium titanate/hard carbon composite as anode material for Li-ion batteries

2013 ◽  
Vol 688 ◽  
pp. 86-92 ◽  
Author(s):  
Guan-nan Zhu ◽  
Yuan-jin Du ◽  
Yong-gang Wang ◽  
Ai-shui Yu ◽  
Yong-yao Xia
Keyword(s):  
Anode Material ◽  
Lithium Titanate ◽  
Carbon Composite ◽  
Li Ion Batteries ◽  
Hard Carbon ◽  
Li Ion

scholarly journals Flower-like carbon with embedded silicon nano particles as an anode material for Li-ion batteries

RSC Advances ◽  
2017 ◽  
Vol 7 (48) ◽  
pp. 30032-30037 ◽  
Author(s):  
Hui Zhang ◽  
Hui Xu ◽  
Hong Jin ◽  
Chao Li ◽  
Yu Bai ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Material ◽  
Lithium Ion ◽  
Carbon Composite ◽  
Nano Particles ◽  
Li Ion Batteries ◽  
Drying Method ◽  
3 Dimensional ◽  
Silicon Carbon ◽  
Li Ion

A novel 3-dimensional (3D) flower-like silicon/carbon composite was synthesized through spray drying method by using NaCl as the sacrificial reagent and was evaluated as an anode material for lithium ion batteries.

High specific capacity and excellent stability of interface-controlled MWCNT based anodes in lithium ion battery

2011 ◽  
Vol 1313 ◽  
Author(s):  
Indranil Lahiri ◽  
Sung-Woo Oh ◽  
Yang-Kook Sun ◽  
Wonbong Choi
Keyword(s):  
Electrode Materials ◽  
Specific Capacity ◽  
High Energy ◽  
Rechargeable Batteries ◽  
Operating Voltage ◽  
Li Ion Batteries ◽  
High Specific Capacity ◽  
Capacity Degradation ◽  
Li Ion ◽  
Very High

ABSTRACTRechargeable batteries are in high demand for future hybrid vehicles and electronic devices markets. Among various kinds of rechargeable batteries, Li-ion batteries are most popular for their obvious advantages of high energy and power density, ability to offer higher operating voltage, absence of memory effect, operation over a wider temperature range and showing a low self-discharge rate. Researchers have shown great deal of interest in developing new, improved electrode materials for Li-ion batteries leading to higher specific capacity, longer cycle life and extra safety. In the present study, we have shown that an anode prepared from interface-controlled multiwall carbon nanotubes (MWCNT), directly grown on copper current collectors, may be the best suitable anode for a Li-ion battery. The newly developed anode structure has shown very high specific capacity (almost 2.5 times as that of graphite), excellent rate capability, nil capacity degradation in long-cycle operation and introduced a higher level of safety by avoiding organic binders. Enhanced properties of the anode were well supported by the structural characterization and can be related to very high Li-ion intercalation on the walls of CNTs, as observed in HRTEM. This newly developed CNT-based anode structure is expected to offer appreciable advancement in performance of future Li-ion batteries.

Advanced Electrode Materials in Lithium Batteries: Retrospect and Prospect

2021 ◽  
Vol 2021 ◽  
pp. 1-15
Author(s):  
Xin Shen ◽  
Xue-Qiang Zhang ◽  
Fei Ding ◽  
Jia-Qi Huang ◽  
Rui Xu ◽  
...  
Keyword(s):  
Energy Density ◽  
Electrode Materials ◽  
High Energy ◽  
Rechargeable Batteries ◽  
High Energy Density ◽  
Li Ion Batteries ◽  
Next Generation ◽  
Future Scenario ◽  
Li Ion ◽  
Historical Developments

Lithium- (Li-) ion batteries have revolutionized our daily life towards wireless and clean style, and the demand for batteries with higher energy density and better safety is highly required. The next-generation batteries with innovatory chemistry, material, and engineering breakthroughs are in strong pursuit currently. Herein, the key historical developments of practical electrode materials in Li-ion batteries are summarized as the cornerstone for the innovation of next-generation batteries. In addition, the emerging electrode materials for next-generation batteries are discussed as the revolving challenges and potential strategies. Finally, the future scenario of high-energy-density rechargeable batteries is presented. The combination of theory and experiment under multiscale is highlighted to promote the development of emerging electrode materials.

scholarly journals Covalent Organic Frameworks as Electrode Materials for Rechargeable Batteries

2021 ◽  
Vol 03 (01) ◽  
pp. 067-089
Author(s):  
Eric R. Wolfson ◽  
Erica M. Moscarello ◽  
William K. Haug ◽  
Psaras L. McGrier
Keyword(s):  
Energy Storage ◽  
Electrode Materials ◽  
Rechargeable Batteries ◽  
Energy Storage Materials ◽  
Covalent Organic Frameworks ◽  
Li Ion Batteries ◽  
Battery Electrode ◽  
Energy Storage Properties ◽  
Li Ion ◽  
Storage Properties

Covalent organic frameworks (COFs) are an advanced class of crystalline porous polymers that have garnered significant interest due to their tunable properties and robust molecular architectures. As a result, COFs with energy-storage properties are of particular interest to the field of rechargeable battery electrode materials. However, investigation into COFs as candidates for energy-storage materials is still in its infancy. This review will highlight methods used to fabricate COFs used as electrode materials and discuss the factors that prove critical for their production. A collection of known COF-based energy-storage systems will be featured. In addition, the ability to utilize the storage properties of COFs for systems beyond traditional Li-ion batteries will be addressed. An outlook will address the current progress and remaining challenges facing the field to ultimately expand the scope of their applications.

Nanosilica/carbon composite spheres as anodes in Li-ion batteries with excellent cycle stability

2015 ◽  
Vol 3 (4) ◽  
pp. 1476-1482 ◽  
Author(s):  
Mingqi Li ◽  
Yan Yu ◽  
Jing Li ◽  
Baoling Chen ◽  
Xianwen Wu ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Material ◽  
High Capacity ◽  
Lithium Ion ◽  
High Energy ◽  
Carbon Composite ◽  
Li Ion Batteries ◽  
Cycle Stability ◽  
Li Ion

Because of its high capacity, relatively low operation potentials, abundance and environmental benevolence, silica is a promising anode material for high-energy lithium-ion batteries.

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