High Capacity Sulfurized Alcohol Composite Positive Electrode Materials Applicable for Lithium Sulfur Batteries

2016 ◽  
Vol 164 (1) ◽  
pp. A6288-A6293 ◽  
Author(s):  
Tomonari Takeuchi ◽  
Toshikatsu Kojima ◽  
Hiroyuki Kageyama ◽  
Kei Mitsuhara ◽  
Masahiro Ogawa ◽  
...  
Keyword(s):  
Electrode Materials ◽  
High Capacity ◽  
Positive Electrode ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur ◽  
Positive Electrode Materials

scholarly journals Moss-Derived Mesoporous Carbon as Bi-Functional Electrode Materials for Lithium–Sulfur Batteries and Supercapacitors

Nanomaterials ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 84 ◽  
Author(s):  
Wen Lei ◽  
Haipeng Liu ◽  
Junlei Xiao ◽  
Yang Wang ◽  
Liangxu Lin
Keyword(s):  
Electrode Materials ◽  
High Capacity ◽  
High Specific Capacitance ◽  
Clean Energy ◽  
Mesoporous Structure ◽  
High Specific Surface Area ◽  
Waste Biomass ◽  
High Discharge Capacity ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

In this work, we reported a moss-derived biomass porous carbon (MPC) as a bi-functional electrode material for both the lithium–sulfur battery and the supercapacitor. The MPC was prepared from a high-temperature calcination procedure using the moss as the carbonaceous precursor. Using NaOH, the MPC was activated to give a mesoporous structure with a high specific surface area (1057.1 m2 g−1) and large pore volume (0.72 cm3 g−1). When it was used as the cathode material in lithium–sulfur batteries, the MPC material realized a sulfur loading and exhibited a remarkably improved electrochemical performance, i.e., a high discharge capacity of 1070 mAh g−1 at 0.1 C. This activated MPC also worked well as a capacitive electrode in supercapacitors, demonstrating a high specific capacitance of 332 F g−1 (scan rate of 1.0 A g−1) and a high capacity retention > 97% in a long-term cycle of 1000 charge/discharges. This work demonstrated a facile method for the utilization of activated waste biomass material for future clean energy applications.

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