Graphene oxide as a sulfur immobilizer in high performance lithium/sulfur cells.

By Liwen Ji, M. Rao, Haimei Zheng, Liang Zhang, Yuanchang Li, Wenhui Duan, Jinghua Guo, E. Cairns, Yuegang Zhang. Journal of the American Chemical Society, 2011

692 citations recorded by the source corpus.

The loss of sulfur cathode material as a result of polysulfide dissolution causes significant capacity fading in rechargeable lithium/sulfur cells. Here, we use a chemical approach to immobilize sulfur and lithium polysulfides via the reactive functional groups on graphene oxide. This approach enabled us to obtain a uniform and thin (around tens of nanometers) sulfur coating on graphene oxide sheets by a simple chemical reaction-deposition strategy and a subsequent low-temperature thermal treatment process. Strong interaction between graphene oxide and sulfur or polysulfides enabled us to demonstrate lithium/sulfur cells with a high reversible capacity of 950-1400 mA h g(-1), and stable cycling for more than 50 deep cycles at 0.1C (1C = 1675 mA g(-1)).

Subfields: Automotive Engineering, Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/cc197492d924431f884097f6d4683d027a657872

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In Automotive Engineering

1. Guangmin Zhou
2. Yi Cui
3. Jun Lu
4. Yayuan Liu
5. Jun Chen
6. Z. Seh
7. Feng Li
8. Zhongwei Chen

In Electrical and Electronic Engineering

1. Qiang Zhang
2. Guangmin Zhou
3. Hui‐Ming Cheng
4. Feng Li
5. Jun Chen
6. Yi Cui
7. Jia-qi Huang
8. Zhongwei Chen

Citations in the corpus

• How Far Away Are Lithium-Sulfur Batteries From Commercialization? (2019, background): “In many previous reports, the weight ratio of pure sulfur within cathode is no more than 50% for coin cells (Ji et al., 2011; Zoo and Manthiram, 2013; Zheng et al., 2014; Zhou et al., 2015; Du et al., 2016; Fang et al., 2017; Wang Q. Q. et al., 2017).”
• Composite of sulfur impregnated in porous hollow carbon spheres as the cathode of Li-S batteries with high performance (2012, background): “First, the PHCSs have high graphitization degree, and the sp2-hybridized carbon has a strong chemical interaction with sulfur [14, 23].”
• Interlayer Material Selection for Lithium-Sulfur Batteries (2019, background): “Interestingly, Ji’s group described the chemical interactions between polysulfides and oxygen functional groups of RGO.(59) While graphene has been proposed as an interlayer for LSBs with an intriguing potential because of its versatile surface chemistry, localized p electron conduction, and good fl”