Excellent Cycle Life of Lithium‐Metal Anodes in Lithium‐Ion Batteries with Mussel‐Inspired Polydopamine‐Coated Separators

Myung‐Hyun Ryou(Korea Advanced Institute of Science and Technology), Dong Jin Lee(Korea Advanced Institute of Science and Technology), Je‐Nam Lee(Korea Advanced Institute of Science and Technology), Yong Min Lee(Hanbat National University), Jung‐Ki Park(Korea Advanced Institute of Science and Technology), Jang Wook Choi(Korea Advanced Institute of Science and Technology)
Advanced Energy Materials
April 13, 2012
Cited by 469

Abstract

An excellent cycle life (150 cycles with 80% retention) for lithium-metal anodes in lithium-ion batteries is achieved by employing mussel-inspired polydopamine-treated-polyethylene separators. This originates from the polydopamine coating, which enables a uniform ionic flux, as well as mussel-inspired catecholic adhesion of the separators onto the lithium surfaces. Additionally, the polydopamine coating improves the thermal-shrinkage properties of polyethylene separators.


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