Spinel/layered heterostructured cathode material for high-capacity and high-rate Li-ion batteries.

Wu, Feng; Li, Ning; Su, Yuefeng; Shou, Haofang; Bao, Liying; Yang, Wen; Zhang, Linjing; An, Ran et al. · Adv Mater · 2013

basic_science · Level V

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Abstract

Best of both worlds: A heterostructured material is synthesized that comprises a core of layered lithium-rich material and an outer layer of nanospinel material. This spinel/layered heterostructured material maximizes the inherent advantages of the 3D Li(+) insertion/extraction framework of the spinel structure and the high Li(+) storage capacity of the layered structure. The material exhibits super-high reversible capacities, outstanding rate capability and excellent cycling ability.