Jump to main content
Jump to site search


Cable-like Heterogeneous Porous Carbon Fibers with Ultrahigh-Rate Capability and Long Cycle Life for Fast Charging Lithium-Ion Storage Devices

Abstract

In this paper, we propose a space-confined foaming approach to fabricate a cable-like heterogeneous porous carbon fibers (Si-CPCFs) containing the inner graphitized carbon “conductor” and the outer Si-doping amorphous carbon “shield”. Benefited from the fast Li+ intercalation and high conductivity of the “inner conductor”, and the rich pseudocapacitance of the “outer shield”, the Si-CPCFs exhibite an ultrahigh-rate capability and cycling performance, leading to a high capacity of 132 mAh g-1 even at an ultra-high current density of 100 A g-1 after 10000 cycles. The assembled lithium ion hybrid supercapacitors (LIHCs) also deliver a superior energy density of 50 Wh kg-1 at the ultra-high power density of 113 kW kg-1, really achieving both high energy density and power density of LIHCs. Therefore, the success of cable-like heterogeneous porous carbon architecture proposes a new direction of circumventing the discrepancy in kinetics and capacity mismatch, and also inspires more attentions on heterogeneous nanostructures with multifunction.

Back to tab navigation

Supplementary files

Publication details

The article was received on 26 Aug 2019, accepted on 04 Oct 2019 and first published on 08 Oct 2019


Article type: Paper
DOI: 10.1039/C9NR07339F
Nanoscale, 2019, Accepted Manuscript

  •   Request permissions

    Cable-like Heterogeneous Porous Carbon Fibers with Ultrahigh-Rate Capability and Long Cycle Life for Fast Charging Lithium-Ion Storage Devices

    Y. Zhang, M. Zhang, W. Liu, Y. Cui, T. Wang, S. Liu, H. Wang, S. Chen, M. Huang and Y. Du, Nanoscale, 2019, Accepted Manuscript , DOI: 10.1039/C9NR07339F

Search articles by author

Spotlight

Advertisements