Unusual Capacity Increases with Cycling for Ladder-Type Microporous Polymers
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Updated: Jan 31, 2026

Layer-by-layer Synthesis and Transfer of Freestanding Conjugated Microporous Polymer Nanomembranes
Published on: December 15, 2015
Tyler B Schon1,2, So Young An1,2, Andrew J Tilley1,2
1Department of Chemistry , University of Toronto , 80 St. George Street , Toronto , Ontario M5S 2H6 , Canada.
Abstract:
Microporous polymers using triptycene vertices and various ladder-type benzimidazole linkers are synthesized and tested as lithium-ion battery anodes. An unusual increase in performance is observed upon cycling, affording high capacities of 783 and 737 mAh g-1 for a perylene derivative and the pyromellitic derivative after 1000 cycles. The high performance of these materials after cycling is attributed to favorable electrode morphology and high crystallinity for perylene derivative, and the presence of charge carriers for pyromellitic derivative. By studying the effect of various linkers on the electrochemical performance, structure-property relationships are proposed that can be used to guide the development of high-performance materials for lithium-ion batteries.
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