用于锂离子电池隔膜的高性能纤维素气凝胶膜。
High-performance cellulose aerogel membrane for lithium-ion battery separator.
作者信息
Rong Yu, Fang Lingxiao, Shi Zhuqun, Xiong Chuanxi, Yang Quanling, An Qinyou
机构信息
Sanya Science and Education Innovation Park, Wuhan University of Technology, Sanya 572024, China; State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, School of Materials Science and Engineering, Wuhan University of Technology, Luoshi Road 122, Wuhan 430070, China.
State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, School of Materials Science and Engineering, Wuhan University of Technology, Luoshi Road 122, Wuhan 430070, China.
出版信息
Int J Biol Macromol. 2025 Apr;303:140535. doi: 10.1016/j.ijbiomac.2025.140535. Epub 2025 Feb 2.
Lithium-ion batteries (LIBs) are the mainstream of the energy storage device market. Efficient and environmentally friendly separators are beneficial for LIBs. Here, we prepared a regenerated cellulose (RC) aerogel with three-dimensional (3D) pores, which was used as the separators of LIBs. Under the effects of homogeneous pore structure and excellent specific surface area, LIBs that use 3 wt% RC aerogel membrane as a separator showed the initial specific capacity of 101.3 mAh g at 1C, 74.3 % capacity retention rate after 110 cycles, which were higher than that of the commercial Celgard 2340 separator-based battery. In addition, the stability and wettability of the RC aerogel membranes as separators were also studied. These results indicated that the RC aerogel membranes can be used as efficient and environmentally friendly cellulose-based separators for LIBs.
锂离子电池（LIBs）是储能设备市场的主流。高效且环保的隔膜对锂离子电池有益。在此，我们制备了具有三维（3D）孔隙的再生纤维素（RC）气凝胶，将其用作锂离子电池的隔膜。在均匀的孔隙结构和优异的比表面积的作用下，使用3 wt% RC气凝胶膜作为隔膜的锂离子电池在1C时的初始比容量为101.3 mAh g，110次循环后的容量保持率为74.3%，高于基于商业Celgard 2340隔膜的电池。此外，还研究了RC气凝胶膜作为隔膜的稳定性和润湿性。这些结果表明，RC气凝胶膜可作为锂离子电池高效且环保的纤维素基隔膜。
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