Si Nanowires: From Model System to Practical Li-Ion Anode Material and Beyond

Syed Abdul Ahad, Tadhg Kennedy, Hugh Geaney

Research output: Contribution to journalReview articlepeer-review

Abstract

Nanowire (NW)-based anodes for Li-ion batteries (LIBs) have been under investigation for more than a decade, with their unique one-dimensional (1D) morphologies and ability to transform into interconnected active material networks offering potential for enhanced cycling stability with high capacity. This is particularly true for silicon (Si)-based anodes, where issues related to large volumetric expansion can be partially mitigated and the cycle life can be enhanced. In this Perspective, we highlight the trajectory of Si NWs from a model system to practical Li-ion battery anode material and future prospects for extension to beyond Li-ion batteries. The study examines key research areas related to Si NW-based anodes, including state-of-the-art (SoA) characterization approaches followed by practical anode design considerations, including NW composite anode formation and upscaling/full-cell considerations. An outlook on the practical prospects of NW-based anodes and some future directions for study are detailed.

Original languageEnglish
Pages (from-to)1548-1561
Number of pages14
JournalACS Energy Letters
Volume9
Issue number4
DOIs
Publication statusPublished - 12 Apr 2024

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