Title

Unique Structural Design and Strategies for Germanium-Based Anode Materials Toward Enhanced Lithium Storage

RIS ID

114857

Publication Details

Li, D., Wang, H., Zhou, T., Zhang, W., Liu, H. Kun. & Guo, Z. (2017). Unique Structural Design and Strategies for Germanium-Based Anode Materials Toward Enhanced Lithium Storage. Advanced Energy Materials, 1700488-1-1700488-16.

Abstract

Germanium-based materials are arousing increasing interest as anodes for lithium-ion batteries, stemming from the intrinsic physical and chemical advantages of germanium. This progress report provides a brief review on the current development of germanium-based materials in lithium storage. The state-of-the-art strategies to achieve enhanced electrochemical properties are highlighted, with their main aim being to resolve the trickiest issue: vast volume changes in germanium during cycling. These strategies include structural modification, modification by surface coating, forming germanium-based alloys, and forming binary or ternary germanium-based composites. The recent work on a novel composite of germanium and tin particles encapsulated in double-concentric carbon hollow spheres is also presented here, with an emphasis on the relationship between structural design and improved performance.

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Link to publisher version (DOI)

http://dx.doi.org/10.1002/aenm.201700488