Bi-2212 based anode materials for Li-ion batteries

Authors

Matthew Lindsay, University of WollongongFollow
Hua-Kun Liu, University of WollongongFollow

RIS ID

21029

Publication Details

Lindsay, M & Liu, HK (2007), Bi-2212 based anode materials for Li-ion batteries, Journal of New Materials for Electrochemical systems, 10(3), pp. 161-166.

Abstract

A number of studies have previously examined the insertion of lithium into superconductor Bi₂Sr₂CaCu₂O_8+δ(Bi-2212) materials. A maximum lithium uptake of two moles of lithium per mole of Bi-2212 was reported amongst these studies which corresponds to a capacity of 60 mAh/g. Two Bi-2212 materials are examined here an undoped Bi₂Sr₂CaCu₂O_8+δ and doped Bi₂Sr₂Ca_0.3Y_0.7Cu₂O₈ material. Both materials exhibitied a capacity of over 60 mAh/g in both the as produced stated and whn subjected to further processing in the form of ball milling in the presence of carbon. The highest initial discharge capacity of 441 mAh/g was demonstrated by the unmilled undoped Bi₂Sr₂CaCu₂O_8+δ material, though more capacity was maintained by the milled materials. In all cases however the cycle life of the materials was poor.