Microstructure Evolution during Lithiation and Delithiation of Ni3Sn2 Anode for Lithium Secondary Batteries

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Electrochemical properties and microstructure evolution during lithiation and delithiation of Ni3Sn2 single crystals with the hexagonal B82-type related ordered structure have been studied as a function of the crystal orientation by charge/discharge tests, powder X-ray diffraction and transmission electron microscopy. Charge and discharge capacities are strongly dependent on the crystal orientation. When the surface of the thin plate anode is perpendicular to the basal plane of the parent B82 unit cell, the capacities are approximately twice as high as those for the sample whose surface is parallel to the basal plane, which is considered to be related to the difference in the diffusion behavior of lithium with respect to the crystal orientation.

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Periodical:

Advanced Materials Research (Volumes 26-28)

Edited by:

Young Won Chang, Nack J. Kim and Chong Soo Lee

Pages:

225-228

Citation:

T. Kosho et al., "Microstructure Evolution during Lithiation and Delithiation of Ni3Sn2 Anode for Lithium Secondary Batteries", Advanced Materials Research, Vols. 26-28, pp. 225-228, 2007

Online since:

October 2007

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$38.00

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