Study on the Storage Performance of Manganese Spinel Battery

Abstract:

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The power battery was manufactured with the commercial LiMn2O4 and graphite, and its storage performances with different charged state were studied. Structure, morphology and surface state change of the LiMn2O4 before and after storage were observed by XRD, XPS and AC technique, respectively. The result shows that the capacity recovery of LiMn2O4 stored at discharge state is best (99.2%). While that of full-charged state is worst (93.6%). The cyclic performance of LiMn2O4 stored at full-charged state is best (capacity retention ratio of 89.8% after 200 cycles), while that of before storage is 83.0%. The crystal of the spinel was destroyed after storage, and the intensity of breakage is increased with charged state increasing. The amount of soluble Mn and Li-ion migration resistance (Rf) are increased with chare state increasing, and the oxygen loss is detected.

Info:

Periodical:

Advanced Materials Research (Volumes 347-353)

Edited by:

Weiguo Pan, Jianxing Ren and Yongguang Li

Pages:

1395-1398

DOI:

10.4028/www.scientific.net/AMR.347-353.1395

Citation:

Y. J. Liu et al., "Study on the Storage Performance of Manganese Spinel Battery", Advanced Materials Research, Vols. 347-353, pp. 1395-1398, 2012

Online since:

October 2011

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Price:

$35.00

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