fig7

Figure 7. Interfacial properties and electrochemical performance in LHCEs. (A) Top-view and cross-sectional scanning electron microscope (SEM) images of deposited Li in various electrolytes. Reproduced with permission^[121] (copyright 2019, Elsevier). (B) Cryo-electron microscopy images of SEI formed in LHCE at different scales. Insets correspond to the reduced fast Fourier transform and energy dispersive spectroscopy of SEI. Adapted with permission^[122] [copyright 2019, the author(s)]. (C) Li and C elemental mapping of time-of-flight secondary ion mass spectrometry during cycling in LHCE (left) and conventional concentration electrolyte (right). Reproduced with permission^[123] (copyright 2021, Wiley‐VCH GmbH). (D) Rate capability of graphite||Li cells using different electrolytes. Reproduced with permission^[89] (copyright 2020, Wiley‐VCH GmbH). SEI: Solid electrolyte interphase; LHCE: localized highly concentrated electrolyte.