This title appears in the Scientific Report :
2020
Please use the identifier:
http://hdl.handle.net/2128/26055 in citations.
Please use the identifier: http://dx.doi.org/10.1016/j.ensm.2019.12.003 in citations.
Pencil-drawing on nitrogen and sulfur co-doped carbon paper: An effective and stable host to pre-store Li for high-performance lithium–air batteries
Pencil-drawing on nitrogen and sulfur co-doped carbon paper: An effective and stable host to pre-store Li for high-performance lithium–air batteries
Metallic lithium (Li) is regarded as the ultimate anode for high-energy-density rechargeable batteries due to its highest theoretical capacity and most electronegative potential. However, there are serious challenges before practical application of Li metal batteries (e. g. Li–air batteries), includ...
Saved in:
Personal Name(s): | Li, Dongdong |
---|---|
Zhang, Shuaishuai / Zhang, Qian / Kaghazchi, Payam / Qi, Haocheng / Liu, Jie / Guo, Ziyang (Corresponding author) / Wang, Lei (Corresponding author) / Wang, Yonggang | |
Contributing Institute: |
Werkstoffsynthese und Herstellungsverfahren; IEK-1 |
Published in: | Energy storage materials, 26 (2020) S. 593 - 603 |
Imprint: |
Amsterdam
Elsevier
2020
|
DOI: |
10.1016/j.ensm.2019.12.003 |
Document Type: |
Journal Article |
Research Program: |
Electrochemical Storage |
Link: |
Published on 2019-12-07. Available in OpenAccess from 2020-12-07. Published on 2019-12-07. Available in OpenAccess from 2020-12-07. |
Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.1016/j.ensm.2019.12.003 in citations.
Metallic lithium (Li) is regarded as the ultimate anode for high-energy-density rechargeable batteries due to its highest theoretical capacity and most electronegative potential. However, there are serious challenges before practical application of Li metal batteries (e. g. Li–air batteries), including the dendritic Li formation and infinite variation of electrode dimension. Herein, nitrogen (N) and sulfur (S) co-doping carbon paper (NS-CP) is synthesized and further modified with a graphite-based layer (GL) by pencil-drawing. The as-prepared GL modified NS-CP (GL/NS-CP) is applied to pre-store Li through the heating-infusion method and Li-GL/NS-CP electrode is obtained. Experimental and theoretical results have demonstrated that N, S co-doping can effectively enhance the lithiophilicity of CP to ensure the uniform Li deposition. In addition, GL presents excellent Li wettability to rapidly syphon molten Li. Moreover, abundant pores in GL/NS-CP can accommodate enough Li to alleviate electrode volume change and lower local current density to restrain Li dendrites. Compared with pure Li anode, Li-GL/NS-CP electrode shows more stable voltage curves with lower overpotential (20 mV for 600 cycles). As a result, Li–air batteries with Li-GL/NS-CP anodes also exhibit the satisfying cycling life. These results have shed a new light on the development of Li anodes. |