In Situ Designing a Gradient Li+ Capture and Quasi-Spontaneous Diffusion Anode Protection Layer toward Long-Life Li-O2 Batteries.
KAUST DepartmentPhysical Science and Engineering (PSE) Division
Online Publication Date2020-08-09
Print Publication Date2020-09
Embargo End Date2021-08-11
Permanent link to this recordhttp://hdl.handle.net/10754/664601
MetadataShow full item record
AbstractLithium metal is the only anode material that can enable the Li-O2 battery to realize its high theoretical energy density (≈3500 Wh kg-1 ). However, the inherent uncontrolled dendrite growth and serious corrosion limitations of lithium metal anodes make it experience fast degradation and impede the practical application of Li-O2 batteries. Herein, a multifunctional complementary LiF/F-doped carbon gradient protection layer on a lithium metal anode by one-step in situ reaction of molten Li with poly(tetrafluoroethylene) (PTFE) is developed. The abundant strong polar C-F bonds in the upper carbon can not only act as Li+ capture site to pre-uniform Li+ flux but also regulate the electron configuration of LiF to make Li+ quasi-spontaneously diffuse from carbon to LiF surface, avoiding the strong Li+ -adhesion-induced Li aggregation. For LiF, it can behave as fast Li+ conductor and homogenize the nucleation sites on lithium, as well as ensure firm connection with lithium. As a result, this well-designed protection layer endows the Li metal anode with dendrite-free plating/stripping and anticorrosion behavior both in ether-based and carbonate ester-based electrolytes. Even applied protected Li anodes in Li-O2 batteries, its superiority can still be maintained, making the cell achieve stable cycling performance (180 cycles).
CitationYu, Y., Huang, G., Wang, J., Li, K., Ma, J., & Zhang, X. (2020). In Situ Designing a Gradient Li + Capture and Quasi-Spontaneous Diffusion Anode Protection Layer toward Long-Life Li−O 2 Batteries. Advanced Materials, 2004157. doi:10.1002/adma.202004157
SponsorsY.Y., G.H., and J.-Z.W. contributed equally to this work. This work was financially supported by the National Key R&D Program of China (2016YFB0100103), the National Natural Science Foundation of China (21725103), the Strategic Priority Research Program of the Chinese Academy of Sciences (XDA21010210), the Jilin Province Science and Technology Development Plan Funding Project (20180101203JC, 20200201079JC), and the Changchun Science and Technology Development Plan Funding Project (19SS010). We also appreciated the kind help from National & local united engineering lab for power battery in Northeast Normal University.
- Dual-Layered Film Protected Lithium Metal Anode to Enable Dendrite-Free Lithium Deposition.
- Authors: Yan C, Cheng XB, Tian Y, Chen X, Zhang XQ, Li WJ, Huang JQ, Zhang Q
- Issue date: 2018 Jun
- In Situ Chemical Lithiation Transforms Diamond-Like Carbon into an Ultrastrong Ion Conductor for Dendrite-Free Lithium-Metal Anodes.
- Authors: Li Z, Peng M, Zhou X, Shin K, Tunmee S, Zhang X, Xie C, Saitoh H, Zheng Y, Zhou Z, Tang Y
- Issue date: 2021 Sep
- In-Situ Formed Protecting Layer from Organic/Inorganic Concrete for Dendrite-Free Lithium Metal Anodes.
- Authors: Xiao J, Zhai P, Wei Y, Zhang X, Yang W, Cui S, Jin C, Liu W, Wang X, Jiang H, Luo Z, Zhang X, Gong Y
- Issue date: 2020 May 13
- Simultaneously Regulating Lithium Ion Flux and Surface Activity for Dendrite-Free Lithium Metal Anodes.
- Authors: Wang X, Pan Z, Zhuang J, Li G, Ding X, Liu M, Zhang Q, Liao Y, Zhang Y, Li W
- Issue date: 2019 Feb 6
- Surface Fluorination of Reactive Battery Anode Materials for Enhanced Stability.
- Authors: Zhao J, Liao L, Shi F, Lei T, Chen G, Pei A, Sun J, Yan K, Zhou G, Xie J, Liu C, Li Y, Liang Z, Bao Z, Cui Y
- Issue date: 2017 Aug 23