Electrode properties and microstructures of Ag-Sn based alloys used as anode in Li-ion batteries.

• Autorzy: Kitano Y. , Wada M. , Sou T. , Tanabe E. , Fijikawa Y. , Kitano A. , Yin J. , Sakai T.
• Konferencja: 5th Polish-Japanese Symposium on Advanced Methods of Materials Characterization, Niedzica, 28.08-2.09.2004
• Języki publikacji: EN

Abstrakty

EN

Electron microscopic structures are investigated for the alloys, Ag52Sn48, Ag26Fe26Sn48 and Ag36.4Sb15.6Sn48. The alloy is used as the anode in the Li-ion batteries and gives a good performance in the properties such as current densities as well as cycling numbers of charge and discharge repetition. The alloys are synthesized by the mechanical alloying treatment. They are in the form of powder of a few žm in diameter. Each powder particle can be called a secondary particle. The secondary particle consists of a number of nano-sized crystallites. The alloy Ag52Sn48 consists of Sn and Ag3Sn, and the alloy Ag26Fe26Sn48 of Fe, Sn and Ag3Sn. These alloys are found to be porous. The porous structure would contribute to good performance of these alloys. The alloy Ag 36.4Sb15.6Sn48 consists of Sn, Ag3Sn and SbSn. The crystal structure of the SbSn is not cubic but rhombic. Volume expansion occurring at the rhombic SbSn to Li3Sb transformation is found to be only 20%. The small volume change during Li-insertion/Sn-extrusion would be an important factor for the good performance.

Słowa kluczowe

EN

electrode properties; microstructure; alloy; Li-ion battery

PL

właściwości elektrody; mikrostruktura; stop; bateria litowo-jonowa

• Wydawca: Komitet Nauki o Materiałach PAN
• Czasopismo: Archives of Materials Science
• Rocznik: 2005
• Tom: Vol. 26, nr 1-2
• Strony: 95--102
• Opis fizyczny: Bibliogr. 6 poz., rys.

Twórcy

autor

Kitano Y.

• National Institute of Advanced Industrial Science and Technology, Kansai Center, Ikeda, 563-8577 Osaka, Japan
• Interdisciplinary Faculty of Science and Engineering, Shimane University, 690-8504 Matsue, Japan

autor

Wada M.

• Fukuda Metal Foil and Powder Company Limited, Nishinoyama, Yamashina-ku, 607-8305 Kyoto, Japan

autor

Sou T.

• Interdisciplinary Faculty of Science and Engineering, Shimane University, 690-8504 Matsue, Japan

autor

Tanabe E.

• Interdisciplinary Faculty of Science and Engineering, Shimane University, 690-8504 Matsue, Japan

autor

Fijikawa Y.

• Interdisciplinary Faculty of Science and Engineering, Shimane University, 690-8504 Matsue, Japan

autor

Kitano A.

• Japan Synchrotron Radiation Research Institute (JASRI), Spring8, Kouto, Mikazuki, 679-5198 Sayo, Hyogo, Japan

autor

Yin J.

• National Institute of Advanced Industrial Science and Technology, Kansai Center, Ikeda, 563-8577 Osaka, Japan

autor

Sakai T.

• National Institute of Advanced Industrial Science and Technology, Kansai Center, Ikeda, 563-8577 Osaka, Japan

Bibliografia

• [1] J. Yin, M. Wada, S. Yoshida, K. 1shihara, S. Tanase, T. Sаkai, J. Electrochem. Soc. A, 150, 1129 (2003).
• [2] M. Wada, J. Yin, Y. Кitanо, T. Sаkai et al„ Electrochemistry, 71, 1064 (2003).
• [3] J. Yin, Т. Sаkai, M. Wada et al., J. Electrochem. Soc. A, 151, 583 (2004).
• [4] L.M.L. Fransson, K. Edstrom, J. Electrochem. Soc. A, 151, 867 (2004).
• [5] M.M. Thackeray, J.T. Vaoghay, C.S. Johnson, A.J. Kropf, В. Ben, Solid-State Letter A, 4, 9 (2001).
• [6] I. Rom, M. Wachtier, I. Papst, M. Schmied, J.O. Besenhard, F. Hofer, M. Winter, Solid State Ionics, 143, 329 (2001).