Abstract

High-energy-density rechargeable batteries are needed to fulfill various demands such as portable electronic devices, energy storage systems, and (hybrid) electric vehicles. As a result, high-energy electrode materials enabling a long cycle life and reliable safety need to be developed. To ensure these requirements, new material chemistries can be derived from hybridization of at least two compounds in a secondary particle with varying chemical composition and primary particle morphologies having a core−shell structure and spherical cathode-active materials with rod-shaped primary particle. To this end, several layer gradient cathode materials were developed to ensure high capacity, reliability, and safety.

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