Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/95708
DC Field | Value | Language |
---|---|---|
dc.contributor | Department of Applied Physics | en_US |
dc.contributor | Mainland Development Office | en_US |
dc.creator | Huang, JQ | en_US |
dc.creator | Guo, X | en_US |
dc.creator | Huang, J | en_US |
dc.creator | Tan, H | en_US |
dc.creator | Du, X | en_US |
dc.creator | Zhu, Y | en_US |
dc.creator | Zhang, B | en_US |
dc.date.accessioned | 2022-10-05T03:55:30Z | - |
dc.date.available | 2022-10-05T03:55:30Z | - |
dc.identifier.issn | 0378-7753 | en_US |
dc.identifier.uri | http://hdl.handle.net/10397/95708 | - |
dc.language.iso | en | en_US |
dc.publisher | Elsevier | en_US |
dc.rights | © 2020 Elsevier B.V. All rights reserved. | en_US |
dc.rights | © 2020. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/. | en_US |
dc.rights | The following publication Huang, J. Q., Guo, X., Huang, J., Tan, H., Du, X., Zhu, Y., & Zhang, B. (2021). Critical roles of microstructure and interphase on the stability of microsized germanium anode. Journal of Power Sources, 481, 228916 is available at https://doi.org/10.1016/j.jpowsour.2020.228916. | en_US |
dc.subject | Cryo-TEM | en_US |
dc.subject | Electrode-electrolyte interphase | en_US |
dc.subject | Li-ion batteries | en_US |
dc.subject | Microsized Ge anode | en_US |
dc.subject | Nanopores | en_US |
dc.title | Critical roles of microstructure and interphase on the stability of microsized germanium anode | en_US |
dc.type | Journal/Magazine Article | en_US |
dc.identifier.volume | 481 | en_US |
dc.identifier.doi | 10.1016/j.jpowsour.2020.228916 | en_US |
dcterms.abstract | Creating a certain degree of porosity is a widely adopted strategy in maintaining the cyclic stability of alloy anodes in Li-ion batteries (LIBs). The free space provided by the nanopores enables to partly alleviate the large strains during lithiation for increasing structural integrity. Instead of fabricating a nanostructured electrode with pre-designed pores, nanopores are in-situ created during lithiation/de-lithiation of Ge electrodes, enabling the direct utilization of microsized Ge particles. Assisting by scanning transmission electron microscopy (STEM), we systematically explore the microstructure evolution of Ge particles during cycling. It reveals the vital role of pore development, which is closely related to the solid electrolyte interphase (SEI), in maintaining the stable cyclic performance. The nanostructure of SEI is further resolved by cryo-transmission electron microscopy (cryo-TEM), which suggests that the amorphous inorganic component is essential to the fast kinetics for inducing sufficient porosity. Compared to the classic lithium hexafluorophosphate (LiPF6) salt in the electrolyte, the lithium difluoro(oxalato)borate (LiDFOB) shows great advantages in constructing a highly ionic conductive SEI layer for facilitating the nanopore growth. This work demonstrates the critical roles of interphase and the resulted microstructure in stabilizing the alloy microparticles. | en_US |
dcterms.accessRights | open access | en_US |
dcterms.bibliographicCitation | Journal of power sources, 1 Jan. 2021, v. 481, 228916 | en_US |
dcterms.isPartOf | Journal of power sources | en_US |
dcterms.issued | 2021-01-01 | - |
dc.identifier.scopus | 2-s2.0-85090547839 | - |
dc.identifier.eissn | 1873-2755 | en_US |
dc.identifier.artn | 228916 | en_US |
dc.description.validate | 202210 bcfc | en_US |
dc.description.oa | Accepted Manuscript | en_US |
dc.identifier.FolderNumber | AP-0085 | - |
dc.description.fundingSource | RGC | en_US |
dc.description.fundingSource | Others | en_US |
dc.description.fundingText | The Key Project for Basic Research of Shenzhen, China; The Hong Kong Polytechnic University | en_US |
dc.description.pubStatus | Published | en_US |
dc.identifier.OPUS | 39567112 | - |
dc.description.oaCategory | Green (AAM) | en_US |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
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Huang_Critical_Roles_Microstructure.pdf | Pre-Published version | 1.97 MB | Adobe PDF | View/Open |
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