A Mesoporous/Crystalline Composite Material Containing Tin Phosphate for Use as the Anode in Lithium-Ion Batteries

A Mesoporous/Crystalline Composite Material Containing Tin Phosphate for Use as the Anode in Lithium-Ion Batteries

Packed to capacity: The incorporation of mesoporous structures as a buffer layer enhances the structural stability of tin phosphate and alleviates the volume expansion of the tin phosphate anode during Li alloying/dealloying (see TEM image). The mesoporous tin phosphate/Sn2P2O7 composite anode shows...

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Veröffentlicht in:Angewandte Chemie International Edition 2004-11, Vol.43 (44), p.5987-5990
Hauptverfasser: Kim, Eunjin, Son, Dongyeon, Kim, Tae-Gon, Cho, Jaephil, Park, Byungwoo, Ryu, Kwang-Sun, Chang, Soon-Ho
Format: Artikel
Sprache:eng
Schlagworte:
battery materials
Crystallization
Electric Power Supplies
Electrochemistry
Electrodes
lithium
Lithium - chemistry
mesoporous materials
Phosphates - chemistry
Porosity
tin
Tin Compounds - chemistry
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Zusammenfassung:Packed to capacity: The incorporation of mesoporous structures as a buffer layer enhances the structural stability of tin phosphate and alleviates the volume expansion of the tin phosphate anode during Li alloying/dealloying (see TEM image). The mesoporous tin phosphate/Sn2P2O7 composite anode shows a large initial capacity (721 mA h g−1) and excellent cyclability (587 mA h g−1 at the 30th cycle).
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.200454080