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Preparation of spherical spinel LiMn2O4 cathode material for Li-ion batteries

机译：锂离子电池球形尖晶石型LiMn2O4正极材料的制备

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摘要

A novel process was proposed for synthesis of spinel LiMn2O4 with spherical particles from cheap materials of MnSO4, NaOH, oxalic acid, citric acid and Li2CO3. Its successful preparation started with a carefully controlled crystallization of Mn3O4, leading to the spherical shape of its particles and a high tap density. The mixture of Mn3O4 and Li2CO3 was sintered to produce LiMn2O4 with spherical particle size retention. The spherical particles of spinel LiMn2O4 were of excellent fluidity and dispersivity, and had tap density as high as 1.9 g cm(-3) and the initial discharge capacity reaching 116 mAh g(-1). Its 20th cycle capacity kept to be 111 mAh g(-1) (c) 2005 Elsevier B.V. All rights reserved.
机译：提出了一种由廉价的MnSO4，NaOH，草酸，柠檬酸和Li2CO3原料合成球形尖晶石LiMn2O4的新方法。它的成功制备始于精心控制的Mn3O4结晶，从而使其颗粒呈球形，并获得高振实密度。烧结Mn 3 O 4和Li 2 CO 3的混合物以产生具有球形粒度保留的LiMn 2 O 4。尖晶石LiMn2O4的球形颗粒具有出色的流动性和分散性，振实密度高达1.9 g cm（-3），初始放电容量达到116 mAh g（-1）。其20次循环容量保持为111 mAh g（-1）（c）2005 Elsevier B.V.保留所有权利。

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