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Title: Substituted M{sub x}Cu{sub 6-x}Sn{sub 5} compounds (M= Fe, Co, Ni, Zn) : designing multi-component intermetallic electrodes for lithium batteries.

Abstract

No abstract prepared.

Authors:
; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
EE
OSTI Identifier:
917238
Report Number(s):
ANL/CMT/JA-59121
TRN: US200816%%357
DOE Contract Number:
DE-AC02-06CH11357
Resource Type:
Journal Article
Resource Relation:
Journal Name: Electrochem. Solid State Lett.; Journal Volume: 10; Journal Issue: 9 ; 2007
Country of Publication:
United States
Language:
ENGLISH
Subject:
25 ENERGY STORAGE; 36 MATERIALS SCIENCE; ELECTRODES; METAL-NONMETAL BATTERIES; DESIGN; LITHIUM; INTERMETALLIC COMPOUNDS; COPPER ALLOYS; TIN ALLOYS; IRON ALLOYS; COBALT ALLOYS; NICKEL ALLOYS; ZINC ALLOYS

Citation Formats

Vaughey, J., Owejan, J., Thackeray, M. M., and Chemical Engineering. Substituted M{sub x}Cu{sub 6-x}Sn{sub 5} compounds (M= Fe, Co, Ni, Zn) : designing multi-component intermetallic electrodes for lithium batteries.. United States: N. p., 2007. Web. doi:10.1149/1.2751838.
Vaughey, J., Owejan, J., Thackeray, M. M., & Chemical Engineering. Substituted M{sub x}Cu{sub 6-x}Sn{sub 5} compounds (M= Fe, Co, Ni, Zn) : designing multi-component intermetallic electrodes for lithium batteries.. United States. doi:10.1149/1.2751838.
Vaughey, J., Owejan, J., Thackeray, M. M., and Chemical Engineering. Mon . "Substituted M{sub x}Cu{sub 6-x}Sn{sub 5} compounds (M= Fe, Co, Ni, Zn) : designing multi-component intermetallic electrodes for lithium batteries.". United States. doi:10.1149/1.2751838.
@article{osti_917238,
title = {Substituted M{sub x}Cu{sub 6-x}Sn{sub 5} compounds (M= Fe, Co, Ni, Zn) : designing multi-component intermetallic electrodes for lithium batteries.},
author = {Vaughey, J. and Owejan, J. and Thackeray, M. M. and Chemical Engineering},
abstractNote = {No abstract prepared.},
doi = {10.1149/1.2751838},
journal = {Electrochem. Solid State Lett.},
number = 9 ; 2007,
volume = 10,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2007},
month = {Mon Jan 01 00:00:00 EST 2007}
}
  • FeSn2, Cu6Sn5, CoSn3, and Ni3Sn4 single-crystalline nanospheres with a characteristic uniform particle size of 40 nm have been synthesized via a modified polyol process, aiming at determining and understanding their intrinsic cycling performance as negative electrode materials for lithium-ion batteries. We find that, in this morphologically controlled condition, the reversible capacities follow FeSn2 > Cu6Sn5 ? CoSn3 > Ni3Sn4, which is not directly decided by their theoretical capacities or lithium-driven volume changes. FeSn2 exhibits the best electrochemical activity among these intermetallic nanospheres and an effective solid electrolyte interface, which explains its superior cycling performance. The small particle dimension also improvesmore » cycling stability and Li+ diffusion.« less
  • FeSn{sub 2}, Cu{sub 6}Sn{sub 5}, CoSn{sub 3}, and Ni{sub 3}Sn{sub 4} single-crystalline nanospheres with a characteristic uniform particle size of 40 nm have been synthesized via a modified polyol process, aiming at determining and understanding their intrinsic cycling performance as negative electrode materials for lithium-ion batteries. We find that, in this morphologically controlled condition, the reversible capacities follow FeSn{sub 2} > Cu{sub 6}Sn{sub 5} {approx} CoSn{sub 3} > Ni{sub 3}Sn{sub 4}, which is not directly decided by their theoretical capacities or lithium-driven volume changes. FeSn{sub 2} exhibits the best electrochemical activity among these intermetallic nanospheres and an effective solid electrolytemore » interface, which explains its superior cycling performance. The small particle dimension also improves cycling stability and Li{sup +} diffusion.« less
  • The substitution limits and the change in T/sub c/ produced by substituting selected comparably sized cations for copper in the high-T/sub c/ superconductivity phase, EuBa/sub 2/O/sub 6.5+x/, are determined. The elements, M = Ni, Co, Zn, and Al, substitute for copper only to a limited extent to produce EuBa/sub 2/Cu/sub 3-y/ M/sub y/O/sub 6.5+x/ phases. Attempts to completely replace the copper ions and retain orthorhombic structure were unsuccessful. As substitution progressed, a tetragonal phase became stabilized and the superconducting transition temperature, T/sub c/, decreased sharply. Magnetic properties and superconducting transition temperatures of the maximally substituted phases and of EuBa/sub 2/-CuO/submore » 6.5 + x/ are reported.« less
  • The crystal and electronic structures, and the thermodynamic properties of Zr{sub 6}X{sub 2}Co (X=Al, Ga, Sn, As, Sb, Bi, Te) and Zr{sub 6}Sn{sub 2}T′ (T′=Fe, Co, Ni, Cu) ternary compounds in the Fe{sub 2}P-type structure have been investigated by means of first principle calculations. The calculated structural parameters are in good agreement with the experimental data. The total electronic densities of states as well as the Bader charges of the atoms have been computed. Both electronic and size effects allow to explain the stability of the ternary Zr{sub 6}X{sub 2}Co (X=Al, Ga, Sn, As, Sb, Bi, Te) and Zr{sub 6}Sn{submore » 2}T′ (T′=Fe, Co, Ni, Cu) compounds. - Graphical abstract: Valence charge electronic localization function (ELF) calculated for Zr{sub 6}Sb{sub 2}Co compound. Display Omitted - Highlights: • Structural stability of Zr{sub 6}X{sub 2}T′ compounds (X: p element, T′: late transition metal) in the Fe{sub 2}P-type structure. • First principles calculation of lattice parameters and enthalpies of formation. • Electronic densities of state in the series Zr{sub 6}Sn{sub 2}T′ (T′=Fe, Co, Ni, Cu). • Electronic densities of state in the series Zr{sub 6}X{sub 2}Co (X=Al, Ga, Sn, As, Sb, Bi, Te)« less
  • It has been discovered that lithium can be inserted into the intermetallic compound Cu{sub 6}Sn{sub 5} in a two-phase reaction to yield the product Li{sub x}Cu{sub 6}Sn{sub 5} (x{approx}13). This finding has important implications for designing new intermetallic insertion electrodes (anodes) for rechargeable lithium batteries. The theoretical capacity of Li{sub x}Cu{sub 6}Sn{sub 5} derived from the eta-phase, {eta}-Cu{sub 6}Sn{sub 5}, with a NiAs-type structure is 358 mAh/g for x{sub max}=13, which corresponds to a fully lithiated composition Li{sub 2.17}CuSn{sub 0.83}; this capacity is close to the theoretical capacity of lithiated graphite LiC{sub 6} (372 mAh/g). The reaction occurs at approximatelymore » 0.4 V vs. lithium metal. The best cycling efficiency is obtained when the end voltage is restricted to 200 mV above the potential of lithium metal. A mechanism is proposed for the insertion of lithium into {eta}-Cu{sub 6}Sn{sub 5}.« less