Magnetic Structures of NaFePO4 Maricite and Triphylite Polymorphs for Sodium-Ion Batteries

被引：135

作者：

Avdeev, Maxim ^{[1
]}

Mohamed, Zakiah ^{[2
]}

Ling, Chris D. ^{[2
]}

Lu, Jiechen ^{[3
]}

Tamaru, Mao ^{[3
,4
]}

Yamada, Atsuo ^{[3
,5
]}

Barpanda, Prabeer ^{[3
,5
]}

机构：

[1] Australian Nucl Sci & Technol Org, Bragg Inst, Kirrawee Dc, NSW 2232, Australia

[2] Univ Sydney, Sch Chem, Sydney, NSW 2006, Australia

[3] Univ Tokyo, Dept Chem Syst Engn, Bunkyo Ku, Tokyo 1138656, Japan

[4] Mitsubishi Motors Corp, Okazaki, Aichi 4448501, Japan

[5] Kyoto Univ, ESICB, Unit Element Strategy Initiat Catalysts & Batteri, Kyoto 6158510, Japan

来源：

INORGANIC CHEMISTRY | 2013年 / 52卷 / 15期

基金：

澳大利亚研究理事会;

关键词：

LITHIUM BATTERIES; CATHODE MATERIALS; ELECTROCHEMICAL INTERCALATION; RECHARGEABLE BATTERIES; CRYSTAL-CHEMISTRY; DELITHIATED FORM; LIFEPO4; NA; LICOPO4; FEPO4;

D O I：

10.1021/ic400870x

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The magnetic structure and properties of polycrystalline NaFePO4 polymorphs, maricite and triphylite, both derived from the olivine structure type, have been investigated using magnetic susceptibility, heat capacity, and low temperature neutron powder diffraction. These NaFePO4 polymorphs assume orthorhombic frameworks (space group No. 62, Pnma), built from FeO6 octahedral and PO4 tetrahedral units having corner-sharing and edge-sharing arrangements. Both polymorphs demonstrate antiferromagnetic ordering below 13 K for maricite and 50 K for triphylite. The magnetic structure and properties are discussed considering super- and supersuperexchange interactions M comparison to those of triphylite-LiFePO4.

引用

页码：8685 / 8693

页数：9

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