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Updated: Jan 31, 2026
09:09
Layer-by-layer Synthesis and Transfer of Freestanding Conjugated Microporous Polymer Nanomembranes
Published on: December 15, 2015
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Unusual Capacity Increases with Cycling for Ladder-Type Microporous Polymers
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.
ACS Applied Materials & Interfaces
|January 8, 2019
Summary
New microporous polymers show improved performance as lithium-ion battery anodes after cycling. These triptycene-based materials offer high capacities, guiding future battery development.
Area of Science:
- Materials Science
- Electrochemistry
- Polymer Chemistry
Background:
- Microporous polymers are promising for energy storage applications.
- Developing high-performance anode materials is crucial for advanced lithium-ion batteries.
Purpose of the Study:
- To synthesize and evaluate novel microporous polymers as lithium-ion battery anodes.
- To investigate the relationship between polymer structure and electrochemical performance.
Main Methods:
- Synthesis of triptycene-based microporous polymers with ladder-type benzimidazole linkers.
- Electrochemical testing of polymer anodes in lithium-ion batteries, including cycling performance.
- Analysis of structure-property relationships through electrochemical data.
Main Results:
- Achieved high capacities of 783 mAh g⁻¹ (perylene derivative) and 737 mAh g⁻¹ (pyromellitic derivative) after 1000 cycles.
- Observed an unusual increase in performance upon cycling, attributed to electrode morphology, crystallinity, and charge carriers.
- Identified structure-property relationships for optimizing anode materials.
Conclusions:
- Triptycene-based microporous polymers demonstrate excellent potential as lithium-ion battery anodes.
- Cycling-induced performance enhancement is a key characteristic of these materials.
- Proposed structure-property correlations can guide the rational design of next-generation battery materials.
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