biostudies-literatureJo CEuropean Research CouncilNational Research Foundation of Korea8403-8410https://www.ebi.ac.uk/biostudies/studies/S-EPMC10173680biostudies-literatureUnknown17(9)To increase the energy density of lithium-ion batteries (LIBs), high-capacity anodes which alloy with Li ions at a low voltage against Li/Li⁺ have been actively pursued. So far, Si has been studied the most extensively because of its high specific capacity and cost efficiency; however, Ge is an interesting alternative. While the theoretical specific capacity of Ge (1600 mAh g^-1) is only half that of Si, its density is more than twice as high (Ge, 5.3 g cm^-3; Si, 2.33 g cm^-3), and therefore the charge stored per volume is better than that of Si. In addition, Ge has a 400 times higher ionic diffusivity and 4 orders of magnitude higher electronic conductivity compared to Si. However, similarly to Si, Ge needs to be structured in order to manage streACS nanoSpinodal Decomposition Method for Structuring Germanium-Carbon Li-Ion Battery Anodes.PMC101736802021M3D1A20438062021R1F1A10602308660052021M3H4A1A02104022De Volder MJeong HJo CWen BPark SKSon YfalseSpinodal Decomposition Method for Structuring Germanium-Carbon Li-Ion Battery Anodes.To increase the energy density of lithium-ion batteries (LIBs), high-capacity anodes which alloy with Li ions at a low voltage against Li/Li⁺ have been actively pursued. So far, Si has been studied the most extensively because of its high specific capacity and cost efficiency; however, Ge is an interesting alternative. While the theoretical specific capacity of Ge (1600 mAh g^-1) is only half that of Si, its density is more than twice as high (Ge, 5.3 g cm^-3; Si, 2.33 g cm^-3), and therefore the charge stored per volume is better than that of Si. In addition, Ge has a 400 times higher ionic diffusivity and 4 orders of magnitude higher electronic conductivity compared to Si. However, similarly to Si, Ge needs to be structured in order to manage stre2023-01-01T00:00:00Z2023 May2025-04-22T00:29:23.203Z2025-04-22T00:29:23.203ZS-EPMC101736803706740710.1021/acsnano.2c12869