Enabling High-Rate and Safe Lithium Ion-Sulfur Batteries by Effective Combination of Sulfur-Copolymer Cathode and Hard-Carbon Anode

ChemSusChem ◽  
2019 ◽  
Vol 12 (2) ◽  
pp. 480-486 ◽  
Author(s):  
Dan Thien Nguyen ◽  
Alexander Hoefling ◽  
Minha Yee ◽  
Giang Thi Huong Nguyen ◽  
Patrick Theato ◽  
...  
2021 ◽  
Author(s):  
yitao lou ◽  
XianFa Rao ◽  
Jianjun Zhao ◽  
Jun Chen ◽  
Baobao Li ◽  
...  

In order to develop novel fast charge/discharge carbon anode materials, an organic hard carbon material (PTCDA-1100) is obtained by calcination of perylene-3,4,9,10-tetracarboxylic dianhydride (PTCDA) at high temperature of 1100 oC....


RSC Advances ◽  
2016 ◽  
Vol 6 (79) ◽  
pp. 75777-75781 ◽  
Author(s):  
Yi-Hung Liu ◽  
Sahori Takeda ◽  
Ikue Kaneko ◽  
Hideya Yoshitake ◽  
Masahiro Yanagida ◽  
...  

Vinylene carbonate induced film formation in a LiFePO4/hard carbon cell is clarified based on liquid chromatography mass spectroscopy and direct analysis in real time mass spectroscopy.


2020 ◽  
Vol 474 ◽  
pp. 228500
Author(s):  
Zhewei Yang ◽  
Yuan Gao ◽  
Zhenxin Zhao ◽  
Yongzhen Wang ◽  
Yucheng Wu ◽  
...  

2017 ◽  
Vol 228 ◽  
pp. 251-258 ◽  
Author(s):  
Hongchuan Yu ◽  
Xiaoli Dong ◽  
Ying Pang ◽  
Yonggang Wang ◽  
Yongyao Xia

2013 ◽  
Vol 1 (12) ◽  
pp. 721-725 ◽  
Author(s):  
Qingtang Zhang ◽  
Hanxue Sun ◽  
Xiaomei Wang ◽  
Zhaoqi Zhu ◽  
Weidong Liang ◽  
...  

2018 ◽  
Vol 921 ◽  
pp. 105-110
Author(s):  
Yu Shiang Wu ◽  
Pei Rong Lyu

Technical developments of anode materials for lithium ion batteries have mainly focused on graphite (natural graphite, artificial graphite, and MCMB). Anode materials such as hard carbon, soft carbon, LTO, and Si-C are still under development. Hard carbon is produced by subjecting a polymer to thermal decomposition and carbonization, yielding nongraphitizable carbon. It exhibits structural stability, safety, and excellent performance at low temperature; moreover, batteries made of hard carbon have a long charge/discharge cycle life. Therefore, hard carbon is suitable for use in Li–ion batteries for electric cars that emphasize output power. This study developed a hard carbon anode by using phenolic resins that were ground to powders with a particle size (D50) of approximately 8 μm. Subsequently, the powders were heat treated at temperatures from 900°C to 1300°C for carbonization to reduce the specific surface area (SSA) of hard carbon. However, the SSA was determined to be still larger than that stipulated in commercial specifications. Therefore, this study coated the hard carbon with 1.5 wt.% poly (dimethyldiallylammonium chloride) and 1.5 wt.% poly (sodium-p-styrenesulfonate) to further reduce its SSA. The results indicated that 1st discharge capacity of the coated hard carbon was 330 mAhg−1. Its 1st irreversibility was reduced from 24.3% to 8.1% and SSA was reduced from 10.2 to 2.8 m2g−1; additionally, its coulombic efficiency after 20 cycles was over 99%. The cycle performance of the double-coated hard carbon at low temperature (-20°C) was improved, and it satisfies high C-rate (10 C) requirements.


EcoMat ◽  
2021 ◽  
Vol 3 (2) ◽  
Author(s):  
Yan Li ◽  
Yi‐Feng Du ◽  
Guo‐Hua Sun ◽  
Jia‐Yao Cheng ◽  
Ge Song ◽  
...  

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