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Influence of Structure and Composition upon Performance of Tin Phosphate Based Negative Electrodes for Lithium Batteries

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Influence of Structure and Composition upon Performance of Tin Phosphate Based Negative Electrodes for Lithium Batteries. / Behm, Mårten; Irvine, John Thomas Sirr.

In: Electrochimica Acta, Vol. 47, 20.03.2002, p. 1727-1738.

Research output: Contribution to journalArticle

Harvard

Behm, M & Irvine, JTS 2002, 'Influence of Structure and Composition upon Performance of Tin Phosphate Based Negative Electrodes for Lithium Batteries', Electrochimica Acta, vol. 47, pp. 1727-1738.

APA

Behm, M., & Irvine, J. T. S. (2002). Influence of Structure and Composition upon Performance of Tin Phosphate Based Negative Electrodes for Lithium Batteries. Electrochimica Acta, 47, 1727-1738.

Vancouver

Behm M, Irvine JTS. Influence of Structure and Composition upon Performance of Tin Phosphate Based Negative Electrodes for Lithium Batteries. Electrochimica Acta. 2002 Mar 20;47:1727-1738.

Author

Behm, Mårten ; Irvine, John Thomas Sirr. / Influence of Structure and Composition upon Performance of Tin Phosphate Based Negative Electrodes for Lithium Batteries. In: Electrochimica Acta. 2002 ; Vol. 47. pp. 1727-1738.

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@article{8e1a99fc6d854730880f14e4a031942e,
title = "Influence of Structure and Composition upon Performance of Tin Phosphate Based Negative Electrodes for Lithium Batteries",
abstract = "Tin oxide and amorphous tin borophosphates have recently received significant attention as possible new negative electrode materials for lithium batteries. In this study. we have carefully investigated a number of different well-characterised tin phosphates as electrodes in Li-ion cells, in order to better understand the mode of operation of these materials and how their performance is related to structure and composition. The materials that were investigated were crystalline cubic and layered SnP2O7, LiSn2(PO4)(3). Sn2P2O7, and Sn-3(PO4)(2). and amorphous Sn2BPO6. Cubic SnP2O7 showed the best performance with a reversible specific charge capacity of > 360 mA h g(-1) and a capacity retention of 96{\%} over 50 cycles when cycled between 0.02 and 1.2 V versus Li-m. The three Sn(IV) materials showed lower initial reversible capacity but better capacity retention than the three Sn(II) materials in the study. Their higher proportion of inert matrix material can partly explain this. However. cubic SnP2O7 cycled significantly better than its layered polymorph. which shows that the structure of the starting material is also of great importance. Another important conclusion drawn front the results is that it is not necessary for the starting material to be amorphous, or if crystalline, to have small grain size, to cycle well. The three pyrophosphates all show an initial reduction capacity that corresponds to around 2 Li per P2O74- unit more than is predicted by theory. This might be explained by reductive break-up of the P 0 P bond. (C) 2002 Elsevier Science Ltd. All rights reserved.",
keywords = "tin phosphate, negative electrodes, lithium batteries, ION BATTERIES, OXIDE, ANODES, SNO, CAPACITY, GLASSES, SN2P2O7",
author = "M{\aa}rten Behm and Irvine, {John Thomas Sirr}",
year = "2002",
month = "3",
day = "20",
language = "English",
volume = "47",
pages = "1727--1738",
journal = "Electrochimica Acta",
issn = "0013-4686",
publisher = "PERGAMON-ELSEVIER SCIENCE LTD",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Influence of Structure and Composition upon Performance of Tin Phosphate Based Negative Electrodes for Lithium Batteries

AU - Behm, Mårten

AU - Irvine, John Thomas Sirr

PY - 2002/3/20

Y1 - 2002/3/20

N2 - Tin oxide and amorphous tin borophosphates have recently received significant attention as possible new negative electrode materials for lithium batteries. In this study. we have carefully investigated a number of different well-characterised tin phosphates as electrodes in Li-ion cells, in order to better understand the mode of operation of these materials and how their performance is related to structure and composition. The materials that were investigated were crystalline cubic and layered SnP2O7, LiSn2(PO4)(3). Sn2P2O7, and Sn-3(PO4)(2). and amorphous Sn2BPO6. Cubic SnP2O7 showed the best performance with a reversible specific charge capacity of > 360 mA h g(-1) and a capacity retention of 96% over 50 cycles when cycled between 0.02 and 1.2 V versus Li-m. The three Sn(IV) materials showed lower initial reversible capacity but better capacity retention than the three Sn(II) materials in the study. Their higher proportion of inert matrix material can partly explain this. However. cubic SnP2O7 cycled significantly better than its layered polymorph. which shows that the structure of the starting material is also of great importance. Another important conclusion drawn front the results is that it is not necessary for the starting material to be amorphous, or if crystalline, to have small grain size, to cycle well. The three pyrophosphates all show an initial reduction capacity that corresponds to around 2 Li per P2O74- unit more than is predicted by theory. This might be explained by reductive break-up of the P 0 P bond. (C) 2002 Elsevier Science Ltd. All rights reserved.

AB - Tin oxide and amorphous tin borophosphates have recently received significant attention as possible new negative electrode materials for lithium batteries. In this study. we have carefully investigated a number of different well-characterised tin phosphates as electrodes in Li-ion cells, in order to better understand the mode of operation of these materials and how their performance is related to structure and composition. The materials that were investigated were crystalline cubic and layered SnP2O7, LiSn2(PO4)(3). Sn2P2O7, and Sn-3(PO4)(2). and amorphous Sn2BPO6. Cubic SnP2O7 showed the best performance with a reversible specific charge capacity of > 360 mA h g(-1) and a capacity retention of 96% over 50 cycles when cycled between 0.02 and 1.2 V versus Li-m. The three Sn(IV) materials showed lower initial reversible capacity but better capacity retention than the three Sn(II) materials in the study. Their higher proportion of inert matrix material can partly explain this. However. cubic SnP2O7 cycled significantly better than its layered polymorph. which shows that the structure of the starting material is also of great importance. Another important conclusion drawn front the results is that it is not necessary for the starting material to be amorphous, or if crystalline, to have small grain size, to cycle well. The three pyrophosphates all show an initial reduction capacity that corresponds to around 2 Li per P2O74- unit more than is predicted by theory. This might be explained by reductive break-up of the P 0 P bond. (C) 2002 Elsevier Science Ltd. All rights reserved.

KW - tin phosphate

KW - negative electrodes

KW - lithium batteries

KW - ION BATTERIES

KW - OXIDE

KW - ANODES

KW - SNO

KW - CAPACITY

KW - GLASSES

KW - SN2P2O7

UR - http://www.scopus.com/inward/record.url?scp=0037139142&partnerID=8YFLogxK

M3 - Article

VL - 47

SP - 1727

EP - 1738

JO - Electrochimica Acta

JF - Electrochimica Acta

SN - 0013-4686

ER -

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