fig15

Figure 15. (A) TEM images of contact loss between SSE and electrode during cycling. Reproduced with permission from ref.^[40]. Copyright 2024, Author(s), licensed under a Creative Commons CC BY license. (B) Schematic of plane and side views showing major expansion directions along [110] for <100>, <110>, and <111> wafers. Reproduced with permission from ref.^[240]. Copyright 2023, American Chemical Society. (C) TEM images of mixing prelithiated Si enable suppressing electrode contact loss and active material expansion. Reproduced with permission from ref.^[241] Copyright 2025 Author(s), licensed under a Creative Commons CC BY license. (D) Employing an elastic polymer electrolyte enables maintaining contact without external pressure. Reproduced with permission from ref.^[39]. Copyright 2024, Author(s), licensed under a Creative Commons CC BY license.