Volume 134, Issue 22
Article

A poly(ethylene terephthalate) nonwoven sandwiched electrospun polysulfonamide fibrous separator for rechargeable lithium ion batteries

Kun Peng

Kun Peng

College of Material Science and Engineering, Donghua University, Shanghai, 201620 People's Republic of China

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Biao Wang

Corresponding Author

Biao Wang

College of Material Science and Engineering, Donghua University, Shanghai, 201620 People's Republic of China

State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai, 201620 People's Republic of China

Correspondence to: B. Wang (E-mail: [email protected])Search for more papers by this author
Chengchang Ji

Chengchang Ji

College of Material Science and Engineering, Donghua University, Shanghai, 201620 People's Republic of China

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First published: 07 February 2017
Citations: 21

ABSTRACT

A poly(ethylene terephthalate) nonwoven sandwiched electrospun polysulfonamide (PSA) fibrous separator was developed for application in lithium-ion batteries (LIBs). The poly(ethylene terephthalate) nonwoven served as a mechanical support and the PSA layers provided the separators with nanoporous structures. This novel composite separator possessed better thermal stability and electrolyte wettability than commercial polypropylene separator and the sandwiched nonwoven endowed the separator with an improved mechanical strength (17.7 MPa) compared to the pure electrospun PSA separator. The cells assembled with this composite separator displayed excellent discharge capacity (122.0 mAh g−1 after 100 cycles) and discharge C-rate capacity. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 44907.

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