Supporting Information Available
Ultrathin Surface Coatings for Improved Electrochemical Performance of Lithium Ion Battery Electrodes at Elevated Temperature Jianqing Zhao, Ying Wang* Department of Mechanical Engineering, Louisiana State University, Baton Rouge, Louisiana 70803, United States *Corresponding Author: Prof. Ying Wang, Tel: 001-225-578-8577 Fax: 001-225-578-9162 E-mail:
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Figure S1. XRD pattern of LiMn2O4 particles coated with 50 ZnO ALD layers.
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Figure S2. SEM image of LiMn2O4 particles coated with 50 ZnO ALD layers.
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Figure S3. SEM images of different electrodes: (a) electrode composed of LiMn2O4 particles coated with 6 ZnO ALD layers and carbon/PVDF network, (b) composite electrode coated with 6 ZnO ALD layers, and (c) composite electrode coated with 50 ZnO ALD layers.
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Figure S4. XPS spectra of Zn 2p from LiMn2O4 composite electrodes coated with (a) 10 ZnO ALD layers and (b) 6 ZnO ALD layers after 100 electrochemical cycles at 55ºC.
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Figure S5. Cycling performance of the electrode composed of LiMn2O4 particles coated with 6 ZnO ALD layers and carbon/PVDF network, at a current density of 0.1 C in a voltage range of 3.4 - 4.5 V vs. Li at elevated temperature (55oC).
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