Structural and transport properties of LiFe0.45Mn0.55PO4 as a cathode material in Li-ion batteries

• Autorzy: Ojczyk W. , Marzec J. , Dygas J. , Krok F. , Liu R.S. , Molenda J.
• Konferencja: IX National Conference on Fast Ion Conductors , Wrocław-Borowice , 9-12 December 2004
• Języki publikacji: EN

Abstrakty

EN

The paper presents investigations on structural, electrical and electrochemical properties of phosphoolivine, LiFe0.45Mn0.55PO4, synthesized at high temperatures. Moessbauer spectroscopy measurements confirmed the occurrence of iron(II), and X-ray absorption near edge structure (XANES) measurements evidenced manganese(II) and iron(II). Impedance spectroscopy enabled the separation of electrical conductivity into electronic and ionic components. The substitution of manganese for iron led to a noticeable increase in the electronic component of conductivity and only to a slight increase in the ionic component, compared to pure LiFePO4. Also, the chemical diffusion coefficient of lithium measured by GITT turned out larger in LixFe0.45Mn0.55PO4. It has been stated that the increased electronic conductivity in manganese-doped phospho-olivine activates the diffusional mechanism of lithium deintercalation.

Słowa kluczowe

EN

LiMnyFe1-yPO4; lithium diffusion; cathode material; Li-ion battery; intercalation

PL

LiMnyFe1-yPO4; dyfuzja litu; materiał katodowy; litowa bateria jonowa; interkalacja

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2006
• Tom: Vol. 24, No. 1
• Strony: 103--113
• Opis fizyczny: Bibliogr. 19 poz.

Twórcy

autor

Ojczyk W.

autor

Marzec J.

autor

Dygas J.

autor

Krok F.

autor

Liu R.S.

autor

Molenda J.

• Faculty of Materials Science and Ceramics, AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Kraków,

Bibliografia

• [1] PADLI A.K., NANJUNDASWAMY K.S., GOODENOUGH J.B., J. Electrochem. Soc., 144 (1997), 1188.
• [2] PADLI A.K., NANJUNDASWAMY K.S., MASQUELIER C., OKADA S., GOODENOUGH J.B., J. Electrochem. Soc., 144 (1997), 1609.
• [3] YAMADA A., KUDO Y., LIU K.-Y., J. Electrochem. Soc., 148 (2001), A747.
• [4] YAMADA A., KUDO Y., LIU K.-Y., J. Electrochem. Soc., 148 (2001), A1153.
• [5] YAMADA A., KUDO Y., CHUNG. S.CH., J. Electrochem. Soc., 148 (2001), A960.
• [6] HONG Y.-S., RYU K.S., PARK Y.J., KIM M.G., LEE J.M., CHANG S.H., J. Mater. Chem., 12 (2002), 1870.
• [7] OKADA S., SAWA S., EGASHIRA M., YAMAKI J.I., TABUCHI M., KAGEYAMA H., KONISHA T., YOSHINO A., J. Power Sources, 97–98 (2001), 430.
• [8] YAMADA A., HOSOYA M., CHUNG. S.CH., KUDO Y., HINOKUMA K., LIU K.-Y., NISHI Y., J. Power Sources, 119–121 (2003), 232.
• [9] FRANGER S., LE CARS F., BOURBON C., ROUAULT H., J. Power Sources, 119–121 (2003), 252.
• [10] WEPPNER W., HUGGINS R.A., J. Electrochem. Soc., 124, (1977), 1569.
• [11] HERLE S., ELLIS B., COOMBS N., NAZAR L.F., Nature Materials, 2 (2004), 147.
• [12] PRINCE A.A.M., MYLSWAMY S., CHAN T.S., LIU R.S., HANNOYER B., JEAN M., SHEN C.H., HAUNG S.M., LEE J.F., WANG G.X., Solid State Commun., 132 (2004), 455.
• [13] MORGAN D., VAN DER VEN A., CEDER G., Electrochem. Solid State Lett., 7 (2004), A30.
• [14] RISSOULI K., BENKHOUJA K., RAMOS-BARRADO J.R., JULIEN C., Mater. Sci. Eng., B98 (2003), 185.
• [15] OJCZYK W, MARZEC J., ŚWIERCZEK K., MOLENDA J., Defect Diffusion Forum, 237–240 (2005), 1299.
• [16] ANDERSSON A.S., THOMAS O.J., J. Power Sources, 97–98 (2001), 498.
• [17] MOLENDA J., OJCZYK W, MARZEC M., MARZEC J., PRZEWOŹNIK J., DZIEMBAJ R., MOLENDA M., Solid State Ionics, 157 (2003), 73.
• [18] MOLENDA J., ŚWIERCZEK K., MOLENDA M., MARZEC J., Solid State Ionics, 135 (2000), 53.
• [19] MOLENDA J., WILK P., MARZEC J., Solid State Ionics, 157 (2003), 115.