Charge Localization in the Lithium Iron Phosphate Li3Fe2(PO4)3 at High Voltages in Lithium-Ion Batteries

被引：9

作者：

Younesi, Reza ^{[1
]}

Christiansen, Ane ^{[1
]}

Loftager, Simon ^{[1
]}

Garcia-Lastra, Juan Maria ^{[1
]}

Vegge, Tejs ^{[1
]}

Norby, Poul ^{[1
]}

Holtappels, Peter ^{[1
]}

机构：

[1] Tech Univ Denmark, Dept Energy Convers & Storage, DK-4000 Roskilde, Denmark

来源：

CHEMSUSCHEM | 2015年 / 8卷 / 19期

关键词：

cathodes; iron; lithium-ion batteries; phosphorus; oxygen oxidation state; CATHODE MATERIALS; IN-SITU;

D O I：

10.1002/cssc.201500752

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Possible changes in the oxidation state of the oxygen ion in the lithium iron phosphate Li3Fe2(PO4)(3) at high voltages in lithium-ion (Li-ion) batteries are studied using experimental and computational analysis. Results obtained from synchrotron-based hard X-ray photoelectron spectroscopy and density functional theory (DFT) show that the oxidation state of O2- ions is altered to higher oxidation states (O-, <2) upon charging Li3Fe2(PO4)(3) to 4.7V.

引用

页码：3213 / 3216

页数：4

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