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Electrochemical intercalation reaction of lithium into sulfides of nonlayer structure: I. Lithium intercalation in lead sulfide
Author(s) -
YongFang Li,
HaoQing Wu
Publication year - 1987
Publication title -
acta chimica sinica english edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 0256-7660
DOI - 10.1002/cjoc.19870050402
Subject(s) - intercalation (chemistry) , chemistry , lithium (medication) , electrochemistry , lead sulfide , cyclic voltammetry , inorganic chemistry , sulfide , titration , electrode , nanotechnology , organic chemistry , materials science , medicine , quantum dot , endocrinology
The reaction mechanism of cell Li/PbS has been studied with coulombic titration, cyclic voltammetry and X‐ray diffraction methods. It was found that in the first stage of discharge (0< y ≤1.5), the intercalation of lithium into lead sulfide took place. The X‐ray diffraction patterns showed that the main crystalline structure of PbS remained unchanged after lithiation, and the lithium intercalated probably locates in the center of the cubic‐interspace of the crystal. The intercalation free energy of Li into PbS forming LiPbS was found to be −300.48 KJ·mol −1 (at 25°C). The chemical diffusion coefficient of lithium in Li y PbS (0< y ≤1) was determined by electrochemical method to be about 10 −11 cm 2 S‐1.