Lithium Intercalation/Deintercalation of the Bi-2212 Phase by Electrochemical Method

Makoto Nakanishi, Yoshiaki Uwazumi, Masashi Fujiwara, Jun Takada, Yoshihiro Kusano, Yasuo Takeda, Yasunori Ikeda
1998 Journal of the Japan Society of Powder and Powder Metallurgy  
The effects of electrochemical removal reaction of lithium from the Li-doped Bi-2212 phase on its structure and superconducting properties have been studied. Lithium was inserted into and removed from Bi2Sr1 .5Ca1.5Cu2Oz through an electrochemical . method at a constant applied potential at room temperature. The original crystal symmetry, tetragonal structure, was maintained and any secondary phase was not formed throughout the electrochemical reactions . Lattice parameter c of the doped
more » ... , Li-,Bi2Sr1.5Ca1.5Cu2Oz, decreased and Tc changed reversibly as the lithium content x decreased, It reveals that the electrochemical reactions were intercalation/deintercalation of the Bi-2212 phase with lithium.
doi:10.2497/jjspm.45.666 fatcat:gfhp3kpb7vastl4t2udwts6ehy