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- W981024937 abstract "以共沉淀法合成的前驱体Ni1/3Co2/3-xAlx（OH）2与低共熔锂盐0.38LiOH·H2O-0.62LiNO3制备了锂离子电池正极材料LiNi1/3Co2/3-xAlxO2（x=1/12,1/6,1/3,1/2,7/12）.采用X射线衍射（XRD）、扫描电镜（SEM）和电化学性能测试对其结构、形貌和电化学性质进行表征.结果表明,LiNi1/3Co2/3-xAlxO2在1/12≤x≤1/3范围内可以保持单一的六方层状α-NaFeO2结构,当Al掺杂量（x）高于1/3时,会出现杂相.其中,LiNi1/3Co1/3Al1/3O2结晶程度最高,阳离子混排效应最小,并且颗粒小而均匀,振实密度可以达到2.88g·cm^-3,首次放电容量为151.5mAh·g^-1,循环50次后放电容量保持在91.4%,在1C和2C倍率下放电容量仍可达到133.7和120.9mAh·g^-1." @default.
- W981024937 created "2016-06-24" @default.
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- W981024937 date "2010-03-03" @default.
- W981024937 modified "2023-09-23" @default.
- W981024937 title "Al掺杂量对正极材料LiNi1/3Co2/3-xAlxO2结构和电化学性能的影响" @default.
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