In Situ Carbonized Cellulose-Based Hybrid Film as Flexible Paper Anode for Lithium-Ion Batteries

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• 作者：Shaomei Cao ; Xin Feng ; Yuanyuan Song ; Hongjiang Liu ; Miao Miao ; Jianhui Fang ; Liyi Shi
• 刊名：ACS Applied Materials & Interfaces
• 出版年：2016
• 出版时间：January 20, 2016
• 年：2016
• 卷：8
• 期：2
• 页码：1073-1079
• 全文大小：570K
• ISSN：1944-8252

文摘

Flexible free-standing carbonized cellulose-based hybrid film is integrately designed and served both as paper anode and as lightweight current collector for lithium-ion batteries. The well-supported heterogeneous nanoarchitecture is constructed from Li₄Ti₅O₁₂ (LTO), carbonized cellulose nanofiber (C–CNF) and carbon nanotubes (CNTs) using by a pressured extrusion papermaking method followed by in situ carbonization under argon atmospheres. The in situ carbonization of CNF/CNT hybrid film immobilized with uniform-dispersed LTO results in a dramatic improvement in the electrical conductivity and specific surface area, so that the carbonized paper anode exhibits extraordinary rate and cycling performance compared to the paper anode without carbonization. The flexible, lightweight, single-layer cellulose-based hybrid films after carbonization can be utilized as promising electrode materials for high-performance, low-cost, and environmentally friendly lithium-ion batteries.