Morphological reversibility of modified Li-based anodes for next-generation batteries

DOI: 10.1021/acsenergylett.9b02424

Authors: Fu Sun (Qingdao Institute of Bioenergy and Bioprocess Technology Chinese Academy of Sciences; Helmholtz-Zentrum Berlin für Materialien und Energie) , Dong Zhou (University of Münster) , Xin He (Helmholtz Institute Münster − Forschungszentrum Jülich GmbH (IEK 12)) , Markus Osenberg (Helmholtz-Zentrum Berlin für Materialien und Energie; Technical University Berlin) , Kang Dong (Helmholtz-Zentrum Berlin für Materialien und Energie; Technical University Berlin) , Libao Chen (Central South University) , Shilin Mei (Helmholtz-Zentrum Berlin für Materialien und Energie) , Andre Hilger (Helmholtz-Zentrum Berlin für Materialien und Energie) , Henning Markötter (Helmholtz-Zentrum Berlin für Materialien und Energie; Technical University Berlin) , Yan Lu (Helmholtz-Zentrum Berlin für Materialien und Energie) , Shanmu Dong (Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences) , Shashidhara Marathe (Diamond Light Source) , Christoph Rau (Diamond Light Source) , Xu Hou (Helmholtz Institute Münster − Forschungszentrum Jülich GmbH (IEK 12)) , Jie Li (Helmholtz Institute Münster − Forschungszentrum Jülich GmbH (IEK 12)) , Marian Cristian Stan (University of Münster) , Martin Winter (University of Münster; Helmholtz Institute Münster − Forschungszentrum Jülich GmbH (IEK 12)) , Robert Dominko (Technical University Berlin) , Ingo Manke (Helmholtz-Zentrum Berlin für Materialien und Energie)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Acs Energy Letters

State: Published (Approved)
Published: December 2019
Diamond Proposal Number(s): 18936

Abstract: Although a great variety of strategies to suppress Li dendrite have been proposed for lithium metal batteries (LMBs), a deeper understanding of the factors playing a crucial role during extended electrochemical cycling is often lacking. Herein, the morphological reversibility of the Li-based anode for next-generation batteries under three prevalent strategies, i.e., the use of Li–Al alloys, polymer coating, and anodic aluminum oxide (AAO) membrane attachment, has been sophisticatedly investigated by nondestructive visualization. The characterizations clearly capture the unprecedented morphological evolution of the Li-based anode during the electrochemical cycling. Furthermore, the results unambiguously indicate the formation of the “dead” electrochemically generated porous structures regardless of >99% cycling efficiency shown in Li symmetric cells in all three cell configurations. The results presented here shed light on further understanding of the morphological evolution of the Li anode under different scenarios, and it also enlightens us on new research activities that may assist in propelling the commercialization of LMBs.

Diamond Keywords: Batteries; Lithium-ion

Subject Areas: Chemistry, Materials, Energy


Instruments: I13-2-Diamond Manchester Imaging

Other Facilities: BAMline at BESSY II

Added On: 16/12/2019 09:45

Discipline Tags:

Energy Storage Energy Physical Chemistry Energy Materials Chemistry Materials Science

Technical Tags:

Imaging Tomography