期刊论文

Sun, Ya;Yan, JT

英文

Materials Letters

0167-577X

2024

368

136687

10.1016/j.matlet.2024.136687

In summary, environmentally friendly, natural, and cost-effective lignin derived from rice has been combined with PAN to fabricate L-PAN composite membrane by electrospinning method. The L-PAN composite membrane exhibited improved wettability and thermal stability. When used as separator, the overall rate performance of the battery assembled with L-PAN as the separator was better than that of commercial separator. The enhanced electrochemical properties contributed by L-PAN composite membrane

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This study outlines the successful fabrication of composite membrane using rice-straw lignin/polyacrylonitrile (L-PAN) via electrospinning method, and evaluated as a lithium-ion battery separator. L-PANs exhibited higher porosity and superior electrolyte wettability compared to the commercial Celgard 2300. Remarkably, even after exposure to 150 degrees C for an hour, L-PANs showed minimal changes, whereas Celgard 2300 experienced notable shrinkage. As a separator for Li/LiFePO4 batteries, L-PANs demonstrated outstanding capacity retention of 97.7 % over 200 cycles and superior cycling performa...