Microporous bamboo biochar for lithium-sulfur batteries
By Xingxing Gu, Yazhou Wang, Chao Lai, Jingxia Qiu, Sheng Li, Yanglong Hou, W. Martens, Nasir Mahmood, Shanqing Zhang. Nano Reseach, 2015
287 citations recorded by the source corpus.
AbstractBeing simple, inexpensive, scalable and environmentally friendly, microporous biomass biochars have been attracting enthusiastic attention for application in lithium-sulfur (Li-S) batteries. Herein, porous bamboo biochar is activated via a KOH/annealing process that creates a microporous structure, boosts surface area and enhances electronic conductivity. The treated sample is used to encapsulate sulfur to prepare a microporous bamboo carbon-sulfur (BC-S) nanocomposite for use as the cathode for Li-S batteries for the first time. The BC-S nanocomposite with 50 wt.% sulfur content delivers a high initial capacity of 1,295 mA·h/g at a low discharge rate of 160 mA/g and high capacity retention of 550 mA·h/g after 150 cycles at a high discharge rate of 800 mA/g with excellent coulombic efficiency (⩾95%). This suggests that the BC-S nanocomposite could be a promising cathode material for Li-S batteries.
Subfields: Electrical and Electronic Engineering, Electronic, Optical and Magnetic Materials
View Paper: https://www.semanticscholar.org/paper/41a16bfeed13412560d27f000e2151b966d85e15
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Citations in the corpus
- Pyrogenic carbon capture and storage (2018, background): “Biochar can not only be used as soil amendment but also in multiple ways for industrial products like construction materials (Gupta & Kua, 2017), for wastewater treatment (Mohan, Sarswat, Ok, & Pittman, 2014), and for electronics (Gu et al., 2014).”
- A hybrid carbon aerogel with both aligned and interconnected pores as interlayer for high-performance lithium–sulfur batteries (2016, methodology): “The semicircle in the EIS profile of the Li–S battery with the HCA interlayer was obviously smaller than that of the Li–S battery without the HCA interlayer as a result of a decreased Rct value, which favored infiltration of the electrolyte and the chemical activation process for re-distribution and”