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Unraveling the Origins of the “Unreactive Core” in Conversion Electrodes to Trigger High Sodium-Ion Electrochemistry AITranslate

Zhenjiang Yu; Jiajun Wang; Liguang Wang; Ying Xie; Shuaifeng Lou; Zaixing Jiang; Yang Ren; Sungsik Lee; Pengjian Zuo; Hua Huo; Geping Yin; Qinmin Pan; Jun Wang;
Harbin Institute of Technology; Harbin Institute of Technology; Harbin Institute of Technology; Heilongjiang University; Harbin Institute of Technology; Harbin Institute of Technology; Argonne National Laboratory; Argonne National Laboratory; Harbin Institute of Technology; Harbin Institute of Technology; Harbin Institute of Technology; Harbin Institute of Technology; Brookhaven National Laboratory
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Publisher: ACS
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Abstract AITranslate

Electrochemical storage via conversion reactions in crystalline electrode materials critically rests upon the sizes of the guest ions. Here we report an unusual behavior that renders CuO inactive in the process of sodium-ion insertion with a synergistic combination of a variety of synchrotron X-ray microscopic, spectroscopic, and structural probes. We reveal that the “unreactive core” formation is closely associated with the microstructural integrity of battery active materials. In light of these findings, we also demonstrate that this undesirable process can be inhibited by the materials’ microstructural design to trigger the potential of high electrochemical properties.

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DOI：https://doi.org/10.1021/acsenergylett.9b01347

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Citation Information:

Electrochemical storage via conversion reactions in crystalline electrode materials critically rests upon the sizes of the guest ions. Here we report an unusual behavior that renders CuO inactive in the process of sodium-ion insertion with a synergistic combination of a variety of synchrotron X-ray microscopic, spectroscopic, and structural probes. We reveal that the “unreactive core” formation is closely associated with the microstructural integrity of battery active materials. In light of these findings, we also demonstrate that this undesirable process can be inhibited by the materials’ microstructural design to trigger the potential of high electrochemical properties.

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GB/T 7714-2015 [1] Zhenjiang Yu, Jiajun Wang, Liguang Wang, et al. ACS Energy Letters, 2019(4). DOI:10.1021/acsenergylett.9b01347.
MLA [1] Zhenjiang Yu, et al., ACS Energy Letters, no. 4, 2019, https://doi.org/10.1021/acsenergylett.9b01347.
APA [1] Zhenjiang Yu, Jiajun Wang, Liguang Wang, Ying Xie, Shuaifeng Lou, Zaixing Jiang, Yang Ren, Sungsik Lee, Pengjian Zuo, Hua Huo, Geping Yin, Qinmin Pan, & Jun Wang. (2019). ACS Energy Letters(4). https://doi.org/10.1021/acsenergylett.9b01347
IEEE [1] Zhenjiang Yu, Jiajun Wang, Liguang Wang, Ying Xie, Shuaifeng Lou, Zaixing Jiang, Yang Ren, Sungsik Lee, Pengjian Zuo, Hua Huo, Geping Yin, Qinmin Pan, and Jun Wang, ACS Energy Letters, no. 4, 2019, doi: 10.1021/acsenergylett.9b01347.