Issue 6, 2019

Morphological and chemical tuning of lead halide perovskite mesocrystals as long-life anode materials in lithium-ion batteries

Abstract

Five methylammonium lead bromide (MAPbBr3) microcrystals with different sizes (∼2.9 mm, ∼2.4 mm, ∼1.9 mm, ∼1.5 mm and ∼1.2 mm), were successfully designed using a facile solvothermal method through tuning the concentration of Pb precursors. The morphology, micro/nanostructure, and chemical composition of these MAPbBr3 crystals are characterized in detail by SEM, XPS, FTIR, PL, TG/DSC, and Hall measurements. The influences of the microstructures involving the defect and grain boundaries on the performance evolution for Li-ion batteries were studied. 3 samples with big, medium, and small sizes (2.9, 1.9 and 1.2 mm) were selected to investigate their electrochemical performance. Interestingly, the MAPbBr3 anodes showed size-dependent electrochemical performance. More importantly, this is the first report stating that excellent cycling stability for 1000 cycles of MAPbBr3 anodes composed of small sized samples should be attributed to the small size, low defect concentration structure and good interface charge transfer.

Graphical abstract: Morphological and chemical tuning of lead halide perovskite mesocrystals as long-life anode materials in lithium-ion batteries

Supplementary files

Article information

Article type
Paper
Submitted
17 Oct 2018
Accepted
02 Jan 2019
First published
03 Jan 2019

CrystEngComm, 2019,21, 1048-1059

Morphological and chemical tuning of lead halide perovskite mesocrystals as long-life anode materials in lithium-ion batteries

Q. Wang, T. Yang, H. Wang, J. Zhang, X. Guo, Z. Yang, S. Lu and W. Qin, CrystEngComm, 2019, 21, 1048 DOI: 10.1039/C8CE01779D

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