Electrochemical Activity of Sulfur-Linked Tetrathionaphthalene Polymer

A polymer based on tetrathionaphthalene (TTN) as a redox active molecular unit is presented. The sulfur-linked TTN polymer, in which TTN segments are covalently linked via thioether, exhibits reversible multiple redox responses and provides an observed capacity of at least 122 mAh g -1 in an ethylene carbonate:diethyl carbonate (1:3 volume ratio) solution containing 1.0 M LiBF 4 in the potential range from 3.2 to 4.4 V (vs Li/Li + ) with good cyclability of the potential scan.

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