Mussel‐Inspired Adhesive Binders for High‐Performance Silicon Nanoparticle Anodes in Lithium‐Ion Batteries
Myung‐Hyun Ryou(Korea Advanced Institute of Science and Technology), Jangbae Kim(Korea Advanced Institute of Science and Technology), Inhwa Lee(Korea Advanced Institute of Science and Technology), Sun‐Jin Kim(Korea Advanced Institute of Science and Technology), You Kyeong Jeong(Korea Advanced Institute of Science and Technology), Seonki Hong(Korea Advanced Institute of Science and Technology), Ji Hyun Ryu(Korea Advanced Institute of Science and Technology), Taek‐Soo Kim(Korea Advanced Institute of Science and Technology), Jung‐Ki Park(Korea Advanced Institute of Science and Technology), Haeshin Lee(Korea Advanced Institute of Science and Technology), Jang Wook Choi(Korea Advanced Institute of Science and Technology)
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Abstract
Conjugation of mussel-inspired catechol groups to various polymer backbones results in materials suitable as silicon anode binders. The unique wetness-resistant adhesion provided by the catechol groups allows the silicon nanoparticle electrodes to maintain their structure throughout the repeated volume expansion and shrinkage during lithiation cycling, thus facilitating substantially improved specific capacities and cycle lives of lithium-ion batteries.
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