Ultrathin Spinel Membrane-Encapsulated Layered Lithium-Rich Cathode Material for Advanced Li-Ion Batteries
Nano Letters2014Vol. 14(6), pp. 3550–3555
Citations Over TimeTop 1% of 2014 papers
Feng Wu, Ning Li, Yuefeng Su, Linjing Zhang, Liying Bao, Jing Wang, Lai Chen, Yu Zheng, Liqin Dai, Jingyuan Peng, Shi Chen
Abstract
Lack of high-performance cathode materials has become a technological bottleneck for the commercial development of advanced Li-ion batteries. We have proposed a biomimetic design and versatile synthesis of ultrathin spinel membrane-encapsulated layered lithium-rich cathode, a modification by nanocoating. The ultrathin spinel membrane is attributed to the superior high reversible capacity (over 290 mAh g(-1)), outstanding rate capability, and excellent cycling ability of this cathode, and even the stubborn illnesses of the layered lithium-rich cathode, such as voltage decay and thermal instability, are found to be relieved as well. This cathode is feasible to construct high-energy and high-power Li-ion batteries.
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