Journal
RSC ADVANCES
Volume 4, Issue 16, Pages 7845-7850Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ra45879b
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Funding
- National Program on Key Basic Research Project of China (973 Program) [MOST2011CB935700]
- Instrument Developing Project of the Chinese Academy of Sciences [YZ201137]
- National High Technology Research and Development Program of China (863 Program) [2013AA050905]
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Eco-friendly cellulose microfibers were modified by mussel-inspired polydopamine coating layer and a cellulose/polydopamine (CPD) membrane was fabricated by a facile and cost-effective papermaking process. It was demonstrated that CPD membrane possessed a compact porous structure, superior mechanical strength and excellent thermal dimensional stability. CPD membrane was explored as a lithium-ion battery separator with its superior mechanical strength, low-cost and favorable electrochemical properties. Lithium cobalt oxide/graphite cell using CPD separator displayed the best cycling stability and rate capability compared with those of commercialized polypropylene separator and pristine cellulose separator. Furthermore, alternating-current impedance of the cell with CPD separator presented minor variation of 9 Omega after the 100th cycle indicating an excellent interfacial stability of the cell. These excellent performances could endow CPD membrane as a very promising application as a high performance lithium-ion battery separator.
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