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Crystal and electronic structures of lithium fluorosulphate based materials for lithium-ion batteries
被引:24
作者:
Ramzan, M.
[1
]
Lebegue, S.
[2
]
Ahuja, R.
[1
,3
]
机构:
[1] Uppsala Univ, Dept Phys & Mat Sci, Condensed Matter Theory Grp, SE-75121 Uppsala, Sweden
[2] Nancy Univ, Inst Jean Barriol, Lab CRM2, CNRS,UMR 7036, F-54506 Vandoeuvre Les Nancy, France
[3] Royal Inst Technol KTH, Dept Mat & Engn, SE-10044 Stockholm, Sweden
来源:
PHYSICAL REVIEW B
|
2010年
/
82卷
/
12期
关键词:
GENERALIZED GRADIENT APPROXIMATION;
AUGMENTED-WAVE METHOD;
ROOM-TEMPERATURE;
ENERGY;
LIXFEPO4;
LIFEPO4;
DENSITY;
CATHODE;
D O I:
10.1103/PhysRevB.82.125101
中图分类号:
T [工业技术];
学科分类号:
08 ;
摘要:
By means of ab initio calculations, we study the electronic structure of LiFeSO4F, which has been shown recently [N. Recham et al., Nature Mater. 9, 68 (2010)] to be an excellent material as a cathode for lithium-ion batteries. We have obtained the crystal structure of FeSO4F, which was not completely determined experimentally, and compare the one of LiFeSO4F to available experimental values, resolving the issue about the position of the Li ion. Our calculated intercalation voltage (3.69 V) is found to be in excellent agreement with experiments. Finally, we have studied LiCoSO4F and LiNiSO4F, which are found to share a similar crystal structure with LiFeSO4F.
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页数:5
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