Facile conductive surface modification of Si nanoparticle with nitrogen-doped carbon layers for lithium-ion batteries

Sasidharachari, Kammari; Na, Byung-Ki; Woo, Sang‐Gil; Yoon, Sukeun; Cho, Kuk Young

doi:10.1007/s10008-016-3291-7

Cited by 13 publications

(1 citation statement)

References 21 publications

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“…Inspired by the reported SEI compositions that yielded superior performance, recent investigations have explored the use of coatings, such as LiF, long-chain organocarbonates, and even an unexpected yet promising combination of LiF with Li 2 CO 3 , considering that the last is usually associated with a poorly passivating SEI. ,,, Carbon, metal oxides, and doped silicon are other popular types of coatings designed to produce stable SEIs. Materials that are commonly used as electrolytes in solid-state lithium-ion batteries have been tested, as exemplified by lithium phosphorus oxynitride (LiPON). − ,− …”

Section: Solid Electrolyte Interphasementioning

confidence: 99%

Silicon Anode Design for Lithium-Ion Batteries: Progress and Perspectives

2017

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Silicon has long been regarded as a prospective anode material for lithium-ion batteries. However, its huge volumetric changes during cycling are a major obstacle to its commercialization, as these changes result in irreversible cracking and disconnection of the active mass from the current collector, as well as an excessive formation of a highly resistive solid electrolyte interphase. Multiple mechanical stress relief strategies that primarily use silicon nanostructurization have been previously developed. However, despite the significant improvements on the active material cycle life, using nanomaterials still results in complications, such as low conductivity, reduced volumetric energy density, and increased side reactions. This work provides a historical context for the development of silicon anodes and focuses on the surface chemistry and structural integrity of the electrode, thereby highlighting the most effective strategies reported recently for their optimization.

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