TY - JOUR
AU - Gohy, Jean‐François
AB - This contribution describes the synthesis of block copolymers containing electrochemically active blocks, their micellization, and finally their use as micellar cathodes in a lithium battery. The self‐assembly of the synthesized poly(styrene)‐block‐poly(2,2,6,6‐tetramethylpiperidinyloxy‐4‐yl methacrylate) (PS‐b‐PTMA) diblock copolymers is realized in a typical battery electrolyte made of 1 m lithium trifluoromethanesulfonate dissolved in a mixture of ethylene carbonate/diethyl carbonate/dimethyl carbonate(1:1:1, in volume). Dynamic light scattering and atomic force micro­scopy indicate the formation of well‐defined spherical micelles with a PS core and a PTMA corona. The electrochemical properties of those micelles are further investigated. Cyclic voltammograms show a reversible redox reaction at 3.6 V (vs Li+/Li). The charge/discharge profiles indicate a flat and reversible plateau around 3.6 V (vs Li+/Li). Finally, the cycling performances of the micellar cathodes are demonstrated. Such self‐assembled block copolymers open new opportunities for nanostructured organic radical batteries.







TI - Micellar Cathodes from Self‐Assembled Nitroxide‐Containing Block Copolymers in Battery Electrolytes
JF - Macromolecular Rapid Communications
DO - 10.1002/marc.201300532
DA - 2014-01-01
UR - https://www.deepdyve.com/lp/wiley/micellar-cathodes-from-self-assembled-nitroxide-containing-block-7Ox607bCcd
SP - 228
EP - 233
VL - 35
IS - 2
DP - DeepDyve
ER -