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Three-dimensional CoNi 2 S 4 nanorod arrays anchored on carbon textiles as an integrated cathode for high-rate and long-life Lithium���Oxygen battery

Journal Article


Abstract


  • Lithium���oxygen (Li���O 2 ) battery possesses remarkably high-energy density and is thus considered as an attractive system for next-generation energy storage. Here, a free-standing cathode is fabricated by directly growing mesoporous CoNi 2 S 4 nanorod arrays on carbon textiles (CNS-RAs/CT) by two-step hydrothermal procedures. This well-designed cathode structure based on mesoporous CNS-RAs owing large open space and high surface area provides sufficient void volume for depositing and accommodating copious Li 2 O 2 products and considerable amount of exposed catalytic sites for oxygen evolution reaction (OER) and oxygen reduction reaction (ORR). The direct contact of CNS-RAs with high-conductive CT can also effectively boost electron transfer within the cathode. Benefiting from above unique features, the free-standing CNS-RAs/CT cathode achieves high capacity of 5438 mA h g ���1 , and excellent cycling stability of 588 cycles. Furthermore, the CNS-RAs/CT electrode-based bendable pouch-type Li���O 2 battery in a large scale is fabricated and shows potential feasibility as a flexible and wearable power source for next-generation electronic devices.

UOW Authors


  •   Shu, Chaozhu (external author)

Publication Date


  • 2019

Citation


  • Hu, A., Long, J., Shu, C., Xu, C., Yang, T., Liang, R., & Li, J. (2019). Three-dimensional CoNi 2 S 4 nanorod arrays anchored on carbon textiles as an integrated cathode for high-rate and long-life Lithium���Oxygen battery. Electrochimica Acta, 301, 69-79. doi:10.1016/j.electacta.2019.01.163

Scopus Eid


  • 2-s2.0-85061320858

Start Page


  • 69

End Page


  • 79

Volume


  • 301

Issue


Place Of Publication


Abstract


  • Lithium���oxygen (Li���O 2 ) battery possesses remarkably high-energy density and is thus considered as an attractive system for next-generation energy storage. Here, a free-standing cathode is fabricated by directly growing mesoporous CoNi 2 S 4 nanorod arrays on carbon textiles (CNS-RAs/CT) by two-step hydrothermal procedures. This well-designed cathode structure based on mesoporous CNS-RAs owing large open space and high surface area provides sufficient void volume for depositing and accommodating copious Li 2 O 2 products and considerable amount of exposed catalytic sites for oxygen evolution reaction (OER) and oxygen reduction reaction (ORR). The direct contact of CNS-RAs with high-conductive CT can also effectively boost electron transfer within the cathode. Benefiting from above unique features, the free-standing CNS-RAs/CT cathode achieves high capacity of 5438 mA h g ���1 , and excellent cycling stability of 588 cycles. Furthermore, the CNS-RAs/CT electrode-based bendable pouch-type Li���O 2 battery in a large scale is fabricated and shows potential feasibility as a flexible and wearable power source for next-generation electronic devices.

UOW Authors


  •   Shu, Chaozhu (external author)

Publication Date


  • 2019

Citation


  • Hu, A., Long, J., Shu, C., Xu, C., Yang, T., Liang, R., & Li, J. (2019). Three-dimensional CoNi 2 S 4 nanorod arrays anchored on carbon textiles as an integrated cathode for high-rate and long-life Lithium���Oxygen battery. Electrochimica Acta, 301, 69-79. doi:10.1016/j.electacta.2019.01.163

Scopus Eid


  • 2-s2.0-85061320858

Start Page


  • 69

End Page


  • 79

Volume


  • 301

Issue


Place Of Publication