In Situ Carbonized Cellulose-Based Hybrid Film as Flexible Paper Anode for Lithium-Ion Batteries
In Situ Carbonized Cellulose-Based Hybrid Film as Flexible Paper Anode for Lithium-Ion Batteries
复制标题
DOI：
10.1021/acsami.5b10648
复制
发表时间：
2016-01-20
影响因子：
9.5
通讯作者：
Shi, Liyi
中科院分区：
文献类型：
--
作者：
Cao, Shaomei;Feng, Xin;Shi, Liyi
柔性独立的基于纤维素的混合膜是一体化设计的，并且既用作纸阳极又用作锂离子电池的轻质集流体。采用加压挤压造纸法，在氩气气氛下原位碳化，制备了Li 4 Ti 5 O 12（LTO）、碳纳米管（CNTs）和纤维素锂（C-CNF）负载的非均相纳米结构。原位碳化的碳纳米纤维/碳纳米管杂化膜固定与均匀分散的LTO的结果在电导率和比表面积的显着改善，使瓦楞纸阳极表现出非凡的速率和循环性能相比，没有碳化的纸阳极。碳化后的柔性、轻质、单层纤维素基杂化膜可用作高性能、低成本和环境友好的锂离子电池的有前途的电极材料。
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.