Format

Send to

Choose Destination
Adv Mater. 2017 Sep;29(35). doi: 10.1002/adma.201702268. Epub 2017 Jul 17.

Ultra-High Pyridinic N-Doped Porous Carbon Monolith Enabling High-Capacity K-Ion Battery Anodes for Both Half-Cell and Full-Cell Applications.

Xie Y1,2, Chen Y1,2, Liu L1,2, Tao P1,2, Fan M1,2, Xu N1,2, Shen X1,2, Yan C1,2.

Author information

1
Soochow Institute for Energy and Materials Innovations, College of Physics, Optoelectronics and Energy & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, 215006, China.
2
Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow University, Suzhou, 215006, China.

Abstract

An ultrahigh pyridinic N-content-doped porous carbon monolith is reported, and the content of pyridinic N reaches up to 10.1% in overall material (53.4 ± 0.9% out of 18.9 ± 0.4% N content), being higher than most of previously reported N-doping carbonaceous materials, which exhibit greatly improved electrochemical performance for potassium storage, especially in term of the high reversible capacity. Remarkably, the pyridinic N-doped porous carbon monolith (PNCM) electrode exhibits high initial charge capacity of 487 mAh g-1 at a current density of 20 mA g-1 , which is one of the highest reversible capacities among all carbonaceous anodes for K-ion batteries. Moreover, the K-ion full cell is successfully assembled, demonstrating a high practical energy density of 153.5 Wh kg-1 . These results make PNCM promising for practical application in energy storage devices and encourage more investigations on a similar potassium storage system.

KEYWORDS:

3D porous structures; K+ full cells; battery anodes; carbon monoliths

PMID:
28714252
DOI:
10.1002/adma.201702268

Supplemental Content

Full text links

Icon for Wiley
Loading ...
Support Center