Hard Carbon Prepared from Willow Leaves Using as Anode Materials for Li-Ion Batteries

2013 ◽  
Vol 724-725 ◽  
pp. 834-837 ◽  
Author(s):  
Shuai Sun ◽  
Cheng Yang Wang ◽  
Ming Ming Chen ◽  
Ming Wei Li
Keyword(s):  
Anode Materials ◽  
Raw Materials ◽  
Coulombic Efficiency ◽  
Rate Capability ◽  
Cycling Performance ◽  
Li Ion Batteries ◽  
Hard Carbon ◽  
One Step ◽  
Li Ion ◽  
Good Rate Capability

Leaves, which are very easy to obtain freely, can be used as raw materials to prepare carbon materials. In this paper, we found that hard carbon can be prepared from willow leaves by one-step carbonization. When the hard carbon was used as anode materials for Li-ion batteries, the revisable capacity of the hard carbon was 230-260 mAhg-1 at the current density of 37.2 mAg-1 with a first-cycle coulombic efficiency of about 50 %. In addition, the hard carbon shows stable cycling performance and good rate capability.

scholarly journals Dealloying-Derived Nanoporous Cu6Sn5 Alloy as Stable Anode Materials for Lithium-Ion Batteries

Materials ◽  
2021 ◽  
Vol 14 (15) ◽  
pp. 4348
Author(s):  
Chi Zhang ◽  
Zheng Wang ◽  
Yu Cui ◽  
Xuyao Niu ◽  
Mei Chen ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Materials ◽  
Coulombic Efficiency ◽  
Lithium Ion ◽  
Specific Area ◽  
Cycling Performance ◽  
Ex Situ ◽  
Li Ion ◽  
Xrd Patterns ◽  
Cu6sn5 Alloy

The volume expansion during Li ion insertion/extraction remains an obstacle for the application of Sn-based anode in lithium ion-batteries. Herein, the nanoporous (np) Cu6Sn5 alloy and Cu6Sn5/Sn composite were applied as a lithium-ion battery anode. The as-dealloyed np-Cu6Sn5 has an ultrafine ligament size of 40 nm and a high BET-specific area of 15.9 m2 g−1. The anode shows an initial discharge capacity as high as 1200 mA h g−1, and it remains a capacity of higher than 600 mA h g−1 for the initial five cycles at 0.1 A g−1. After 100 cycles, the anode maintains a stable capacity higher than 200 mA h g−1 for at least 350 cycles, with outstanding Coulombic efficiency. The ex situ XRD patterns reveal the reverse phase transformation between Cu6Sn5 and Li2CuSn. The Cu6Sn5/Sn composite presents a similar cycling performance with a slightly inferior rate performance compared to np-Cu6Sn5. The study demonstrates that dealloyed nanoporous Cu6Sn5 alloy could be a promising candidate for lithium-ion batteries.

High-rate and long-life of Li-ion batteries using reduced graphene oxide/Co3O4 as anode materials

RSC Advances ◽  
2016 ◽  
Vol 6 (29) ◽  
pp. 24320-24330 ◽  
Author(s):  
Junkai He ◽  
Ying Liu ◽  
Yongtao Meng ◽  
Xiangcheng Sun ◽  
Sourav Biswas ◽  
...  
Keyword(s):  
Anode Materials ◽  
High Capacity ◽  
High Rate ◽  
Microwave Method ◽  
Li Ion Batteries ◽  
Li Ion Battery ◽  
Reduced Graphene ◽  
One Step ◽  
Li Ion ◽  
Long Life

A new one-step microwave method was designed for synthesis of rGO/Co3O4, and the Li-ion battery showed high capacity and long life.

Hard carbon/lithium composite anode materials for Li-ion batteries

2007 ◽  
Vol 52 (13) ◽  
pp. 4312-4316 ◽  
Author(s):  
Hao Sun ◽  
Xiangming He ◽  
Jianguo Ren ◽  
Jianjun Li ◽  
Changyin Jiang ◽  
...  
Keyword(s):  
Anode Materials ◽  
Li Ion Batteries ◽  
Composite Anode ◽  
Hard Carbon ◽  
Li Ion

scholarly journals Core@shell Sb@Sb2O3 nanoparticles anchored on 3D nitrogen-doped carbon nanosheets as advanced anode materials for Li-ion batteries

2020 ◽  
Vol 2 (12) ◽  
pp. 5578-5583
Author(s):  
Xian Chen ◽  
Liang Wang ◽  
Feng Ma ◽  
Tanyuan Wang ◽  
Jiantao Han ◽  
...  
Keyword(s):  
Anode Materials ◽  
Rate Capability ◽  
Cycle Performance ◽  
Core Shell ◽  
Li Ion Batteries ◽  
Li Ion Battery ◽  
Carbon Nanosheets ◽  
Nitrogen Doped ◽  
Li Ion ◽  
Nitrogen Doped Carbon

A nanocomposite of core@shell Sb@Sb2O3 particles anchored on 3D porous nitrogen-doped carbon nanosheets is synthesized and employed as a anode for Li-ion battery, demonstrating excellent rate capability and cycle performance.

Nanostructured anode materials for Li-ion batteries

2008 ◽  
Vol 80 (11) ◽  
pp. 2283-2295 ◽  
Author(s):  
Nahong Zhao ◽  
Lijun Fu ◽  
Lichun Yang ◽  
Tao Zhang ◽  
Gaojun Wang ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Electrochemical Performance ◽  
Electrochemical Properties ◽  
Anode Materials ◽  
High Capacity ◽  
Rate Capability ◽  
Core Shell ◽  
Li Ion Batteries ◽  
Li Ion ◽  
Cycling Behavior

This paper focuses on the latest progress in the preparation of a series of nanostructured anode materials in our laboratory and their electrochemical properties for Li-ion batteries. These anode materials include core-shell structured Si nanocomposites, TiO2 nanocomposites, novel MoO2 anode material, and carbon nanotube (CNT)-coated SnO2 nanowires (NWs). The substantial advantages of these nanostructured anodes provide greatly improved electrochemical performance including high capacity, better cycling behavior, and rate capability.

The first in situ 7Li nuclear magnetic resonance study of lithium insertion in hard-carbon anode materials for Li-ion batteries

2003 ◽  
Vol 118 (13) ◽  
pp. 6038-6045 ◽  
Author(s):  
Michel Letellier ◽  
Frédéric Chevallier ◽  
Christian Clinard ◽  
Elzbieta Frackowiak ◽  
Jean-Noël Rouzaud ◽  
...  
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Anode Materials ◽  
Nuclear Magnetic Resonance Study ◽  
Carbon Anode ◽  
Lithium Insertion ◽  
Li Ion Batteries ◽  
Magnetic Resonance Study ◽  
Hard Carbon ◽  
Li Ion

scholarly journals Electrospun Fe3O4-Sn@Carbon Nanofibers Composite as Efficient Anode Material for Li-Ion Batteries

Nanomaterials ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 2203
Author(s):  
Hong Wang ◽  
Yuejin Ma ◽  
Wenming Zhang
Keyword(s):  
Anode Materials ◽  
Electrochemical Reaction ◽  
Active Material ◽  
Specific Capacity ◽  
Lithium Ion ◽  
Cycling Performance ◽  
Solvothermal Reaction ◽  
Li Ion Batteries ◽  
Li Ion ◽  
A Current

Nanoscale Fe3O4-Sn@CNFs was prepared by loading Fe3O4 and Sn nanoparticles onto CNFs synthesized via electrostatic spinning and subsequent thermal treatment by solvothermal reaction, and were used as anode materials for lithium-ion batteries. The prepared anode delivers an excellent reversible specific capacity of 1120 mAh·g−1 at a current density of 100 mA·g−1 at the 50th cycle. The recovery rate of the specific capacity (99%) proves the better cycle stability. Fe3O4 nanoparticles are uniformly dispersed on the surface of nanofibers with high density, effectively increasing the electrochemical reaction sites, and improving the electrochemical performance of the active material. The rate and cycling performance of the fabricated electrodes were significantly improved because of Sn and Fe3O4 loading on CNFs with high electrical conductivity and elasticity.

Prussian blue analogues Mn[Fe(CN)6]0.6667·nH2O cubes as an anode material for lithium-ion batteries

2015 ◽  
Vol 44 (38) ◽  
pp. 16746-16751 ◽  
Author(s):  
Peixun Xiong ◽  
Guojin Zeng ◽  
Lingxing Zeng ◽  
Mingdeng Wei
Keyword(s):  
Prussian Blue ◽  
Lithium Ion Batteries ◽  
Anode Material ◽  
Coulombic Efficiency ◽  
Rate Capability ◽  
Lithium Ion ◽  
Prussian Blue Analogues ◽  
Li Ion ◽  
Ion Intercalation ◽  
Good Rate Capability

Prussian blue analogues, Mn[Fe(CN)6]0.6667·nH2O cubes, were synthesized and exhibited a large capacity, good rate capability and cycling stability with a high Coulombic efficiency for Li-ion intercalation.

scholarly journals Production of chlorine-containing functional group doped graphene powders using Yucel's method as anode materials for Li-ion batteries

RSC Advances ◽  
2021 ◽  
Vol 11 (63) ◽  
pp. 40059-40071
Author(s):  
Hurmus Gursu ◽  
Yağmur Guner ◽  
Melih Besir Arvas ◽  
Kamil Burak Dermenci ◽  
Umut Savaci ◽  
...  
Keyword(s):  
Anode Materials ◽  
Functional Group ◽  
Li Ion Batteries ◽  
Electrochemical Preparation ◽  
Doped Graphene ◽  
One Step ◽  
Li Ion ◽  
Materials Used ◽  
The One

In this study, the one-step electrochemical preparation of chlorine doped and chlorine-oxygen containing functional group doped graphene-based powders was carried out by Yucel's method, with the resultant materials used as anode materials for lithium (Li)-ion batteries.

High Rate Capability of SiOC Ceramic Aerogels with Tailored Porosity as Anode Materials for Li-ion Batteries

2015 ◽  
Vol 157 ◽  
pp. 41-45 ◽  
Author(s):  
V.S. Pradeep ◽  
D.G. Ayana ◽  
M. Graczyk-Zajac ◽  
G.D. Soraru ◽  
R. Riedel
Keyword(s):  
Anode Materials ◽  
Rate Capability ◽  
High Rate ◽  
Li Ion Batteries ◽  
High Rate Capability ◽  
Li Ion
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