Pressure‐Induced Dense and Robust Ge Architecture for Superior Volumetric Lithium Storage
Meisheng Han,
Jie Liu,
Kunxiong Zheng
et al.
Abstract:The germanium (Ge) anode attains wide attention in lithium‐ion batteries because of its high theoretical volumetric capacity (8646 mAh cm−3). However, the huge volume expansion (≈230%) results in its poor electrochemical performances. The strategies reported in the literature to solve the issue often cause a low packing density, lowering the volumetric capacity. Here, a pressure‐induced route is proposed to fabricate a Ge architecture, in which nano‐sized Ge (≈15 nm) is encapsulated by robust TiO2 and highly c… Show more
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