High-capacity electrode materials for electrochemical energy storage: Role of nanoscale effects

Pramana

Ramki Kalyanaraman5 2²  Surendra K Martha¹  Jagjit Nanda1 2 3³ 

[1] Department of Chemistry, Indian Institute of Technology Hyderabad, ODF Estate, Yeddumailaram 502 205, India$$;Materials Science & Engineering Department, The University of Tennessee, Knoxville, TN 37994, USA$$;Materials Science & Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA$$

关键词: High capacity;    cathode materials;    Li-rich NMC;    conversion cathodes;    lithium-ion battery.;   

DOI  :  

学科分类：物理（综合）

来源: Indian Academy of Sciences

【 摘 要 】

This review summarizes the current state-of-the art electrode materials used for high-capacity lithium-ion-based batteries and their significant role towards revolutionizing the electrochemical energy storage landscape in the area of consumer electronics, transportation and grid storage application. We discuss the role of nanoscale effects on the electrochemical performance of high-capacity battery electrode materials. Decrease in the particle size of the primary electrode materials from micron to nanometre size improves the ionic and electronic diffusion rates significantly. Nanometre-thick solid electrolyte (such as lithium phosphorous oxynitride) and oxides (such as Al2O3, ZnO, TiO2 etc.) material coatings also improve the interfacial stability and rate capability of a number of battery chemistries. We elucidate these effects in terms of different high-capacity battery chemistries based on intercalation and conversion mechanism.

【 授权许可】

Unknown