Title: Nanostructured Materials for Next‐Generation Lithium‐Ion Batteries
Abstract: This chapter examines the fundamental and technological aspects of nanostructured materials for lithium-ion batteries. The chapter examines the application of nanostructured materials in anode- and cathode-active materials as well as in electrolytes. Lithium-alloying elements from Group IV-A (Si, Ge, Sn, Pb) and V-A (As, Sb, Bi) are potential next-generation anode materials. A limiting factor in the use of alloy anodes is the inordinate volume changes that accompany the charge- discharge processes. At the nanoscale, classical cathode materials, typically LiCoO2, LiNiO2 and their solid solutions, and LiMn2O4, undergo extensive surface reactions with electrolytes, raising safety concerns. Use of nanoparticles of LiMn2O4 can accelerate dissolution of manganese, especially at elevated temperatures. Safety of lithium-ion batteries has been sought to be improved by use of thermally stable electrolytes such as nanoarchitectured plastic crystal polymer electrolytes. Several methods, such as use of safety vents, shutdown separators, less flammable electrolytes, and redox shuttles, have been employed to improve safety.
Publication Year: 2017
Publication Date: 2017-02-01
Language: en
Type: other
Indexed In: ['crossref']
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