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Tao et al. Energy Mater 2022;2:200036  https://dx.doi.org/10.20517/energymater.2022.46  Page 19 of 35

                                                                  milling method
                S-carbon replica/ Li  Ge  P  S  Li  Ge  P  S      Combined mechanical and  1500 after 50   [148]
                            10.05  1.05 1.95 12  10.05  1.05 1.95 12
                                                                  liquid-phase mixing  cycles
                Li S-TiS -electrolyte       Electrolyte           Two-step dry/wet-mixing  400 after 200   [103]
                 2  2
                                                                                    cycles














































                Figure 10. Cross-sectional SEM images exhibiting (A) the interface between a SSE and composites of Li S, AB and SE glass (reproduced
                                                                                    2
                              [115]                                              [116]
                with permission from  ). (B) S-C-Li P Mn S  I  composite (reproduced with permission from  ). (C) Cathode layer after cycling
                                        7 2.9  0.1 10.7 0.3
                (reproduced with permission from [117] ). (D) Bilayer framework with a clear PEO/LLTO solid composite electrolyte layer (thickness of 15
                ± 5 μm) (reproduced with permission from [118] ). (E) High-resolution TEM image of Li S-Li PS Cl-C sample and (F) cross-sectional SEM
                                                                           6
                                                                        2
                                                                             5
                images of interlayer-modified Li S pellet (reproduced with permission from [119] ).
                                     2
               reaction was used to fabricate graphene oxide/polyethylene glycol@C/S composite cathodes, which showed
               a long cycling life (capacity retention of 86.6%) after 100 cycles . The introduction of graphene oxide and
                                                                    [145]
               polyethylene glycol is beneficial for increasing the electronic conduction and Li-ion diffusion pathway in the
               cathode separately. A composite cathode of sulfur/AB/Li Ge P S  was obtained by a high-temperature
                                                               3.25
                                                                    0.25 0.75 4
               ball milling (443 K) method, which contributed to the generation of the reaction between S and the
                                                            [146]
               electrolyte and the formation of novel structural units .
               Sulfur can be introduced into the mesopores of carbon replica by a combination method of gas-phase
               mixing and ball milling for preparing a carbon replica-S and Li Ge P S composite electrode . The
                                                                                                   [147]
                                                                           0.25 0.75 4
                                                                      3.25
               employed carbon replica provides a good conductive framework for the composite cathode and the
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