Villevieille C, Ebner M, Gómez-Cámer JL, Marone F, Novák P, Wood V. Influence of conversion material morphology on electrochemistry studied with operando X-ray tomography and diffraction.
ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2015;
27:1676-1681. [PMID:
25619158 DOI:
10.1002/adma.201403792]
[Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Revised: 12/18/2014] [Indexed: 06/04/2023]
Abstract
X-ray diffraction and X-ray tomography are performed on intermetallic particles undergoing lithiation in a porous electrode. Differences between ensemble phase evolution and that at a single-particle level are explored. It is found that all particles evidence core-shell lithiation; however, particles with internal porosity are more mechanically robust and exhibit less fracture.
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