Journal
JOURNAL OF PHYSICAL CHEMISTRY C
Volume 121, Issue 50, Pages 27775-27787Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.jpcc.7b07793
Keywords
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Funding
- Ministry of Science and Technology of Taiwan [MOST 104-2113-M-002-012-MY3]
- Economic Affair of Taiwan [106-EC-17-A-22-0497]
- School of Chemistry from The University of Edinburgh
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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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