Effect of Pyrolysis Method on Physical Properties of Activated Biochar and its Application as Cathode Material for Lithium-Sulfur Battery

2020 ◽  
Vol 63 (2) ◽  
pp. 485-493 ◽  
Author(s):  
Sushil Adhikari ◽  
Sourov K. Sajib
Keyword(s):  
Cathode Material ◽  
Surface Area ◽  
Discharge Rate ◽  
Fast Pyrolysis ◽  
Total Pore Volume ◽  
Douglas Fir ◽  
Canola Meal ◽  
Activated Biochar ◽  
Sulfur Battery ◽  
Lithium Sulfur

HighlightsActivated biochar was derived from canola meal and Douglas fir.Canola meal biochar with 66.2% sulfur exhibited capacity of 1222 mAh g-1.Fast pyrolysis resulted in higher surface area and better Li-S battery performance.Abstract. The influence of preparation method on the specific surface area, total pore volume, and pore size distribution of activated biochar derived from canola meal and Douglas fir was investigated for its use as cathode material for a lithium-sulfur (Li-S) battery. The specific surface area and total pore volume of fast pyrolysis derived activated biochars from Douglas fir and canola meal were found to be 3355 and 3227 m2 g-1, and 1.58 and 1.49 cm3 g-1, respectively. Fast pyrolysis of canola meal activated biochar that was loaded with 66.2% sulfur and exhibited high initial capacity of 1222 mAh g-1 at low discharge rate (0.05 C) and high capacity retention of 589 mAh g-1 after 100 cycles at high discharge rate (0.5 C) when used as the cathode for a Li-S battery. Our results indicated that activated biochar derived from fast pyrolysis showed better physical properties for use as Li-S cathode material as compared to activated biochar derived from slow pyrolysis. Keywords: Activated carbon, Biochar, Fast pyrolysis, Lignocellulosic biomass, Lithium-sulfur battery.

Sulfur encapsulated in porous hollow CNTs@CNFs for high-performance lithium–sulfur batteries

2014 ◽  
Vol 2 (26) ◽  
pp. 10126-10130 ◽  
Author(s):  
Yuming Chen ◽  
Xiaoyan Li ◽  
Kyu-Sung Park ◽  
Jianhe Hong ◽  
Jie Song ◽  
...  
Keyword(s):  
Cathode Material ◽  
Specific Surface ◽  
Surface Area ◽  
Pore Volume ◽  
High Performance ◽  
High Capacity ◽  
Total Pore Volume ◽  
Bet Specific Surface Area ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

A novel carbon-sulfur nanoarchitecture with a high Brunauer–Emmett–Teller (BET) specific surface area of ~80 m2 g−1 and a total pore volume of ~0.2cm3 g−1 shows a high capacity of ~ 700 mAh g−1 at 1 C and 520 mAh g−1 at 5 C after 100 cycles, which makes it a superior cathode material for a rechargeable Li–S battery.

scholarly journals Lamellar Polypyrene Based on Attapulgite–Sulfur Composite for Lithium–Sulfur Battery

Membranes ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 483
Author(s):  
Jing Wang ◽  
Riwei Xu ◽  
Chengzhong Wang ◽  
Jinping Xiong
Keyword(s):  
Cathode Material ◽  
Current Density ◽  
High Current Density ◽  
Specific Capacity ◽  
Lithium Sulfur Batteries ◽  
Rate Test ◽  
Sulfur Battery ◽  
Lower Capacity ◽  
Lithium Sulfur

We report on the preparation and characterization of a novel lamellar polypyrrole using an attapulgite–sulfur composite as a hard template. Pretreated attapulgite was utilized as the carrier of elemental sulfur and the attapulgite–sulfur–polypyrrole (AT @400 °C–S–PPy) composite with 50 wt.% sulfur was obtained. The structure and morphology of the composite were characterized with infrared spectroscopy (IR), thermogravimetric analysis (TGA), and scanning electron microscopy (SEM). An AT @400 °C–S–PPy composite was further utilized as the cathode material for lithium–sulfur batteries. The first discharge specific capacity of this kind of battery reached 1175 mAh/g at a 0.1 C current rate and remained at 518 mAh/g after 100 cycles with capacity retention close to 44%. In the rate test, compared with the polypyrrole–sulfur (PPy–S) cathode material, the AT @400 °C–S–PPy cathode material showed lower capacity at a high current density, but it showed higher capacity when the current came back to a low current density, which was attributed to the “recycling” of pores and channels of attapulgite. Therefore, the lamellar composite with special pore structure has great value in improving the performance of lithium–sulfur batteries.

Experimental and first-principles study of a metal–organic framework with sulfur embedding cathode for enhanced performance lithium–sulfur battery

2018 ◽  
Vol 2 (8) ◽  
pp. 1828-1836 ◽  
Author(s):  
Yan Feng ◽  
Yuliang Zhang ◽  
Guixiang Du ◽  
Jingbo Zhang ◽  
Xiaohui Qu
Keyword(s):  
Cathode Material ◽  
First Principles ◽  
Metal Organic Framework ◽  
Cobalt Metal ◽  
Lithium Sulfur Battery ◽  
First Principles Study ◽  
Metal Organic ◽  
Sulfur Battery ◽  
Lithium Sulfur ◽  
Organic Framework

A cobalt metal–organic framework, CoMOF–S, as host cathode material to immobilize sulfur for Li–S batteries was prepared in this study.

Reduced graphene oxide wrapped sulfur nanocomposite as cathode material for lithium sulfur battery

2020 ◽  
Author(s):  
Mahesh Shastri ◽  
Manjunath Shetty ◽  
Navya Rani M ◽  
Murthy Muniyappa ◽  
Muralidhar Sindhu Sree ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Cathode Material ◽  
Reduced Graphene Oxide ◽  
Lithium Sulfur Battery ◽  
Reduced Graphene ◽  
Sulfur Battery ◽  
Lithium Sulfur

Nanoporous carbon microspheres as matrix of sulfur to prepare sulfur/carbon cathode material for lithium–sulfur battery

Ionics ◽  
2017 ◽  
Vol 24 (9) ◽  
pp. 2509-2521
Author(s):  
Shuntao Xu ◽  
Zhengfu Zhang ◽  
Junpeng Li ◽  
Tianya Wu ◽  
Yuan Xue
Keyword(s):  
Cathode Material ◽  
Nanoporous Carbon ◽  
Carbon Microspheres ◽  
Carbon Cathode ◽  
Lithium Sulfur Battery ◽  
Sulfur Battery ◽  
Lithium Sulfur

Sulfur encapsulated ZIF-8 as cathode material for lithium–sulfur battery with improved cyclability

2014 ◽  
Vol 185 ◽  
pp. 92-96 ◽  
Author(s):  
Ziqi Wang ◽  
Zhongshang Dou ◽  
Yuanjing Cui ◽  
Yu Yang ◽  
Zhiyu Wang ◽  
...  
Keyword(s):  
Cathode Material ◽  
Lithium Sulfur Battery ◽  
Sulfur Battery ◽  
Lithium Sulfur
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