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Title: On the structure and electrochemical reactions with lithium of tin(II) phosphate chloride

Abstract

A crystalline solid of Sn{sub 2}PO{sub 4}Cl stoichiometry and orthorhombic structure was characterized and used as electrode material vs. a lithium metal anode. The structure of the solid resembles that of SnO; tin atoms protrude from layers of PO{sub 4} tetrahedra, while chlorine atoms are located between Sn layers. Two-electrode electrochemical cells of the type Li/LiClO{sub 4}(PC:EC)/Sn{sub 2}PO{sub 4}Cl (PC, propylene carbonate; EC, ethylene carbonate) were mounted and discharged to a maximum capacity close to 6.4 faradays per Sn atom. This corresponds to the complete reduction of Sn(II) to Sn(0) followed by the formation of noncrystalline Li-Sn alloys up to a limiting composition of Li{sub 22}Sn{sub 5}. The second step of the discharge shows an interesting reversibility. After a decrease in capacity during the first ten cycles, ascribable to the increase in the size of tin domains, the charge and discharge capacities remain close to 300 Ah/kg (Sn) up to ca. 40 cycles.

Authors:
; ;
Publication Date:
Research Org.:
Univ. de Cordoba (ES)
OSTI Identifier:
20080560
Resource Type:
Journal Article
Journal Name:
Journal of the Electrochemical Society
Additional Journal Information:
Journal Volume: 147; Journal Issue: 5; Other Information: PBD: May 2000; Journal ID: ISSN 0013-4651
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 25 ENERGY STORAGE; LITHIUM; TIN PHOSPHATES; CRYSTAL STRUCTURE; ELECTRICAL PROPERTIES; METAL-NONMETAL BATTERIES; PERFORMANCE; VOLTAGE DROP; BATTERY CHARGING; ANODES

Citation Formats

Madrigal, F.J.F., Vicente, C.P., and Tirado, J.L. On the structure and electrochemical reactions with lithium of tin(II) phosphate chloride. United States: N. p., 2000. Web. doi:10.1149/1.1393414.
Madrigal, F.J.F., Vicente, C.P., & Tirado, J.L. On the structure and electrochemical reactions with lithium of tin(II) phosphate chloride. United States. doi:10.1149/1.1393414.
Madrigal, F.J.F., Vicente, C.P., and Tirado, J.L. Mon . "On the structure and electrochemical reactions with lithium of tin(II) phosphate chloride". United States. doi:10.1149/1.1393414.
@article{osti_20080560,
title = {On the structure and electrochemical reactions with lithium of tin(II) phosphate chloride},
author = {Madrigal, F.J.F. and Vicente, C.P. and Tirado, J.L.},
abstractNote = {A crystalline solid of Sn{sub 2}PO{sub 4}Cl stoichiometry and orthorhombic structure was characterized and used as electrode material vs. a lithium metal anode. The structure of the solid resembles that of SnO; tin atoms protrude from layers of PO{sub 4} tetrahedra, while chlorine atoms are located between Sn layers. Two-electrode electrochemical cells of the type Li/LiClO{sub 4}(PC:EC)/Sn{sub 2}PO{sub 4}Cl (PC, propylene carbonate; EC, ethylene carbonate) were mounted and discharged to a maximum capacity close to 6.4 faradays per Sn atom. This corresponds to the complete reduction of Sn(II) to Sn(0) followed by the formation of noncrystalline Li-Sn alloys up to a limiting composition of Li{sub 22}Sn{sub 5}. The second step of the discharge shows an interesting reversibility. After a decrease in capacity during the first ten cycles, ascribable to the increase in the size of tin domains, the charge and discharge capacities remain close to 300 Ah/kg (Sn) up to ca. 40 cycles.},
doi = {10.1149/1.1393414},
journal = {Journal of the Electrochemical Society},
issn = {0013-4651},
number = 5,
volume = 147,
place = {United States},
year = {2000},
month = {5}
}