Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/75529
Title: Multi-shelled LiMn1.95Co0.05O4 cages with a tunable Mn oxidation state for ultra-high lithium storage
Authors: Lu, L
Hu, Y
Jiang, H
Wang, Y
Jiang, Y 
Huang, S
Niu, X
Biswas, P
Li, C
Issue Date: 2018
Publisher: Royal Society of Chemistry
Source: New journal of chemistry, 2018, v. 42, no. 5, p. 3953-3960 How to cite?
Journal: New journal of chemistry 
Abstract: Superior electrochemical performance of LiMn 2 O 4 is considered to be one of the most important properties for lithium-ion batteries (LIBs). This paper presents an extremely high performance cathode material, multi-shelled LiMn 1.95 Co 0.05 O 4 cages, which are created using a sucrose template. A small amount of Co substitution uniformly in a bulk material not only tunes Mn 3+ in the minority with bulk stability improving, but can also accommodate specific capacity. In addition, the unique caged structure enhances Li + diffusion and electrolyte penetration, leading to an outstanding rate capability. The as-synthesized cathode material exhibits a very high cap acity of 154.4 mA h g -1 , and retains a high value of 136.7 mA h g -1 after 500 cycles. The present work investigated the combined effect of a tunable average Mn oxidation state and unique multi-shelled cages in a controllable aerosol process.
URI: http://hdl.handle.net/10397/75529
ISSN: 1144-0546
DOI: 10.1039/c7nj04457g
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