Precisely Engineered Colloidal Nanoparticles and Nanocrystals for Li-Ion and Na-Ion Batteries: Model Systems or Practical Solutions?

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• 作者：Marek F. Oszajca ; Maryna I. Bodnarchuk ; Maksym V. Kovalenko
• 刊名：Chemistry of Materials
• 出版年：2014
• 出版时间：October 14, 2014
• 年：2014
• 卷：26
• 期：19
• 页码：5422-5432
• 全文大小：746K
• ISSN：1520-5002

文摘

In recent years, the search for new electrode materials for rechargeable Li-ion batteries has undergone a drastic shift toward nanomaterials. A similar tendency is expected to occur for the conceptually similar Na-ion batteries. Due to very short internal diffusion paths, nanoscale materials are far less limited by their ionic or electronic conductivities than their bulk counterparts. Nanomaterials can also withstand much greater mechanical deformation during charge/discharge cycling. Overall, these favorable effects significantly enlarge the variety of inorganic compounds that can be used as Li and Na ion storage media. Herein, we discuss the perspectives of a specific family of nanomaterials鈥攎onodisperse colloidal nanocrystals and nanoparticles鈥攆or controlling and studying the effects of size, composition, and morphology on electrochemical properties. Despite clear scientific advantages, commercialization of such nanomaterials is presently hampered by their high cost of synthesis, owing to the use of organic solvents and coordination compounds.