Anisotropic semi-aligned PAN@PVdF-HFP separator for Li-ion batteries
Anisotropic semi-aligned PAN@PVdF-HFP separator for Li-ion batteries
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用于锂离子电池的各向异性半排列PAN@PVdF-HFP隔膜
DOI:
10.1088/1361-6528/aba303
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发表时间:
2020-07
期刊:
影响因子:
3.5
通讯作者:
Yanhuai Ding
中科院分区:
文献类型:
--
作者:
Qiuhong Liu;Wenwu Jiang;Weizheng Lu;Yufan Mei;Fakang He;Minhui Zhang;Yin Liu;Yunqing Chen;Jinfeng Peng;Yanhuai Ding
Compared with the common electrospun nanofibers, the alignment of the nanofibers exhibits interesting anisotropic mechanical properties and structural stability. In this paper, semi-aligned PAN@PVdF-HFP nanofiber separators were prepared by a modified electrospinning method. The composite separators exhibit anisotropic mechanical properties and enhanced electrochemical performance compared with electrospun PAN films. The PAN@PVdF-HFP nanofiber separator can deliver an ionic conductivity of 1.2 mSċcm−1 with electrochemical stability up to 5.0 V. The LiFePO4/Li cell with semi-aligned PAN@PVdF-HFP separator shows excellent cycling performance, good rate capability, as well as high discharge capacity.
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