LiFePO{sub 4}/gel/natural graphite cells for the BATT program

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LiFePO{sub 4}/gel/natural graphite (NG) cells have been prepared and cycled under a fixed protocol for cycle and calendar life determination. Cell compression of 10 psi was found to represent an optimal balance between cell impedance and the first cycle losses on the individual electrodes with the gel electrolyte. Cells with a Li anode showed capacities of 160 and 78 mAh/g-LiFePO{sub 4} for C/25 and 2C discharge rates, respectively. Rapid capacity and power fade were observed in the LiFePO{sub 4}/gel/NG cells during cycling and calendar life studies. Diagnostic evaluations point to the consumption of cycleable Li though a side reaction as ... continued below

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Striebel, K.; Guerfi, A.; Shim, J.; Armand, M.; Gauthier, M. & Zaghib, K. October 29, 2002.

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LiFePO{sub 4}/gel/natural graphite (NG) cells have been prepared and cycled under a fixed protocol for cycle and calendar life determination. Cell compression of 10 psi was found to represent an optimal balance between cell impedance and the first cycle losses on the individual electrodes with the gel electrolyte. Cells with a Li anode showed capacities of 160 and 78 mAh/g-LiFePO{sub 4} for C/25 and 2C discharge rates, respectively. Rapid capacity and power fade were observed in the LiFePO{sub 4}/gel/NG cells during cycling and calendar life studies. Diagnostic evaluations point to the consumption of cycleable Li though a side reaction as the reason for performance fade with minimal degradation of the individual electrodes.

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  • Journal Name: Journal of Power Sources; Journal Volume: 119-121C; Other Information: Journal Publication Date: June 2003

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  • Report No.: LBNL--52859
  • Grant Number: AC03-76SF00098
  • Office of Scientific & Technical Information Report Number: 815376
  • Archival Resource Key: ark:/67531/metadc739065

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  • October 29, 2002

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  • Oct. 18, 2015, 6:40 p.m.

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  • April 4, 2016, 1:29 p.m.

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Striebel, K.; Guerfi, A.; Shim, J.; Armand, M.; Gauthier, M. & Zaghib, K. LiFePO{sub 4}/gel/natural graphite cells for the BATT program, article, October 29, 2002; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc739065/: accessed September 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.