Polymorphism in Li-2(Fe,Mn)SiO4: A combined diffraction and NMR study

Chutchamon Sirisopanaporn; Robert Dominko; Christian Masquelier; A. Robert Armstrong; Gregor Mali; Peter G. Bruce

doi:10.1039/c1jm12845k

Polymorphism in Li-2(Fe,Mn)SiO4: A combined diffraction and NMR study

Chutchamon Sirisopanaporn, Robert Dominko, Christian Masquelier, A. Robert Armstrong, Gregor Mali, Peter G. Bruce

Research output: Contribution to journal › Article › peer-review

Abstract

Li2MSiO4 compounds have been attracting significant attention as lithium intercalation compounds for the next generation of rechargeable lithium batteries. Their structures consist of slightly distorted close packed oxygen slabs between which cations occupy half the tetrahedral sites, leading to a range of polymorphs. In this paper we describe the rich polymorphism observed across the Li2FezMn(1-z)SiO4 solid solution, characterized by detailed powder neutron and X-ray diffraction studies, combined with solid state NMR. This polymorphism reflects that seen in the end-members, with a gradual transition from Fe-like behaviour for iron-rich compositions, to Mn-like behaviour with increasing manganese content.

Original language	English
Pages (from-to)	17823-17831
Number of pages	9
Journal	Journal of Materials Chemistry
Volume	21
Issue number	44
DOIs	https://doi.org/10.1039/c1jm12845k
Publication status	Published - 2011

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SDG 7 Affordable and Clean Energy

Keywords

LITHIUM-ION BATTERIES
POSITIVE-ELECTRODE MATERIALS
LI-6 MAS NMR
CATHODE MATERIAL
ELECTROCHEMICAL PERFORMANCE
CRYSTAL-STRUCTURE
LI2FESIO4
LI2MNSIO4
LI2MNXFE1-XSIO4
NANOMATERIALS

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title = "Polymorphism in Li-2(Fe,Mn)SiO4: A combined diffraction and NMR study",

abstract = "Li2MSiO4 compounds have been attracting significant attention as lithium intercalation compounds for the next generation of rechargeable lithium batteries. Their structures consist of slightly distorted close packed oxygen slabs between which cations occupy half the tetrahedral sites, leading to a range of polymorphs. In this paper we describe the rich polymorphism observed across the Li2FezMn(1-z)SiO4 solid solution, characterized by detailed powder neutron and X-ray diffraction studies, combined with solid state NMR. This polymorphism reflects that seen in the end-members, with a gradual transition from Fe-like behaviour for iron-rich compositions, to Mn-like behaviour with increasing manganese content.",

keywords = "LITHIUM-ION BATTERIES, POSITIVE-ELECTRODE MATERIALS, LI-6 MAS NMR, CATHODE MATERIAL, ELECTROCHEMICAL PERFORMANCE, CRYSTAL-STRUCTURE, LI2FESIO4, LI2MNSIO4, LI2MNXFE1-XSIO4, NANOMATERIALS",

author = "Chutchamon Sirisopanaporn and Robert Dominko and Christian Masquelier and Armstrong, \{A. Robert\} and Gregor Mali and Bruce, \{Peter G.\}",

year = "2011",

doi = "10.1039/c1jm12845k",

language = "English",

volume = "21",

pages = "17823--17831",

journal = "Journal of Materials Chemistry",

issn = "0959-9428",

publisher = "Royal Society of Chemistry",

number = "44",

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TY - JOUR

T1 - Polymorphism in Li-2(Fe,Mn)SiO4: A combined diffraction and NMR study

AU - Sirisopanaporn, Chutchamon

AU - Dominko, Robert

AU - Masquelier, Christian

AU - Armstrong, A. Robert

AU - Mali, Gregor

AU - Bruce, Peter G.

PY - 2011

Y1 - 2011

N2 - Li2MSiO4 compounds have been attracting significant attention as lithium intercalation compounds for the next generation of rechargeable lithium batteries. Their structures consist of slightly distorted close packed oxygen slabs between which cations occupy half the tetrahedral sites, leading to a range of polymorphs. In this paper we describe the rich polymorphism observed across the Li2FezMn(1-z)SiO4 solid solution, characterized by detailed powder neutron and X-ray diffraction studies, combined with solid state NMR. This polymorphism reflects that seen in the end-members, with a gradual transition from Fe-like behaviour for iron-rich compositions, to Mn-like behaviour with increasing manganese content.

AB - Li2MSiO4 compounds have been attracting significant attention as lithium intercalation compounds for the next generation of rechargeable lithium batteries. Their structures consist of slightly distorted close packed oxygen slabs between which cations occupy half the tetrahedral sites, leading to a range of polymorphs. In this paper we describe the rich polymorphism observed across the Li2FezMn(1-z)SiO4 solid solution, characterized by detailed powder neutron and X-ray diffraction studies, combined with solid state NMR. This polymorphism reflects that seen in the end-members, with a gradual transition from Fe-like behaviour for iron-rich compositions, to Mn-like behaviour with increasing manganese content.

KW - LITHIUM-ION BATTERIES

KW - POSITIVE-ELECTRODE MATERIALS

KW - LI-6 MAS NMR

KW - CATHODE MATERIAL

KW - ELECTROCHEMICAL PERFORMANCE

KW - CRYSTAL-STRUCTURE

KW - LI2FESIO4

KW - LI2MNSIO4

KW - LI2MNXFE1-XSIO4

KW - NANOMATERIALS

UR - https://www.scopus.com/pages/publications/80455176602

U2 - 10.1039/c1jm12845k

DO - 10.1039/c1jm12845k

M3 - Article

SN - 0959-9428

VL - 21

SP - 17823

EP - 17831

JO - Journal of Materials Chemistry

JF - Journal of Materials Chemistry

IS - 44

ER -

Polymorphism in Li-2(Fe,Mn)SiO4: A combined diffraction and NMR study

Abstract

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Keywords

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