Abstract
• Tetrakis coumarin (TKC) is investigated as an electrode material for lithium ion battery. • Incorporation of coumarin units helps in addressing solubility related issues. • TKC demonstrates capacities of 300 and 203 mAh g −1 at 50 and 1000 mA g −1. • Good rate capability up to 1 A g -1 with good cyclability is achieved. Coumarin based tetramer type molecule – Tetrakiscoumarin (TKC) has been synthesized and investigated as an electrode material for lithium ion battery. TKC comprises four hydroxyl and four carbonyl sites for lithium uptake and it can undergo multiple redox reactions. It is observed that TKC exhibits discharge capacities of 300 and 203 mAh g −1 at 50 and 1000 mA g −1 with good rate capability in the potential range of 0.01–3.0 V vs Li + . The present work involves the investigation of lactone group – containing coumarin based molecule as an electrode material and helps explore the potential of coumarin based organic materials.
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