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Ultra-light and flexible pencil-trace anode for high performance potassium-ion and lithium-ion batteries

Journal Article


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Abstract


  • Engineering design of battery configurations and new battery system development are alternative approaches to achieve high performance batteries. A novel flexible and ultra-light graphite anode is fabricated by simple friction drawing on filter paper with a commercial 8B pencil. Compared with the traditional anode using copper foil as current collector, this innovative current-collector-free design presents capacity improvement of over 200% by reducing the inert weight of the electrode. The as-prepared pencil-trace electrode exhibits excellent rate performance in potassium-ion batteries (KIBs), significantly better than in lithium-ion batteries (LIBs), with capacity retention of 66% for the KIB vs. 28% for the LIB from 0.1 to 0.5 A g−1. It also shows a high reversible capacity of ∼230 mAh g−1 at 0.2 A g−1, 75% capacity retention over 350 cycles at 0.4 A g−1 and the highest rate performance (based on the total electrode weight) among graphite electrodes for K+ storage reported so far.

Publication Date


  • 2017

Citation


  • Tai, Z., Liu, Y., Zhang, Q., Zhou, T., Guo, Z., Liu, H. K. & Dou, S. X. (2017). Ultra-light and flexible pencil-trace anode for high performance potassium-ion and lithium-ion batteries. Green Energy and Environment, 2 (3), 278-284.

Scopus Eid


  • 2-s2.0-85041478712

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=4190&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/3140

Has Global Citation Frequency


Number Of Pages


  • 6

Start Page


  • 278

End Page


  • 284

Volume


  • 2

Issue


  • 3

Place Of Publication


  • China

Abstract


  • Engineering design of battery configurations and new battery system development are alternative approaches to achieve high performance batteries. A novel flexible and ultra-light graphite anode is fabricated by simple friction drawing on filter paper with a commercial 8B pencil. Compared with the traditional anode using copper foil as current collector, this innovative current-collector-free design presents capacity improvement of over 200% by reducing the inert weight of the electrode. The as-prepared pencil-trace electrode exhibits excellent rate performance in potassium-ion batteries (KIBs), significantly better than in lithium-ion batteries (LIBs), with capacity retention of 66% for the KIB vs. 28% for the LIB from 0.1 to 0.5 A g−1. It also shows a high reversible capacity of ∼230 mAh g−1 at 0.2 A g−1, 75% capacity retention over 350 cycles at 0.4 A g−1 and the highest rate performance (based on the total electrode weight) among graphite electrodes for K+ storage reported so far.

Publication Date


  • 2017

Citation


  • Tai, Z., Liu, Y., Zhang, Q., Zhou, T., Guo, Z., Liu, H. K. & Dou, S. X. (2017). Ultra-light and flexible pencil-trace anode for high performance potassium-ion and lithium-ion batteries. Green Energy and Environment, 2 (3), 278-284.

Scopus Eid


  • 2-s2.0-85041478712

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=4190&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/3140

Has Global Citation Frequency


Number Of Pages


  • 6

Start Page


  • 278

End Page


  • 284

Volume


  • 2

Issue


  • 3

Place Of Publication


  • China