2,3,6,7,10,11-Hexamethoxytriphenylene (HMTP): A new organic cathode material for lithium batteries
Journal article, 2012
We propose a new organic cathode material for rechargeable lithium battery applications: 2,3,6,7,10,11-hexamethoxytriphenylene (HMTP). HMTP is composed of six methoxy functional groups substituted onto a central triphenylene moiety. The cell, incorporating 40 wt.% of organic cathode material, exhibits full specific capacity at current densities up to 3 C. The main advantage of HMTP as organic cathode material lies in a stable cell performance and negligible self discharge, even though the capacity is lower, similar to 66 mAh/g, compared to other organic cathode materials. Cells with the HMTP cathode showed >95% retention of the initial discharge capacity after 50 cycles at 1 C and self-discharge was not observed during a full month of open circuit voltage measurements. The latter is due to the fact that the nature of the HMTP radical is fundamentally different from other organic cathode materials' radicals.
7
ptma cathode
rechargeable batteries
radical battery
10
2
11-Hexamethoxytriphenylene
polymer
Self-discharge
3
electrochemical properties
Organic cathode materials
6
Lithium secondary batteries
Author
Jae-Kwang Kim
Chalmers, Applied Physics, Condensed Matter Physics
Frederic Thebault
Chalmers, Applied Physics, Condensed Matter Physics
Chalmers, Chemical and Biological Engineering, Physical Chemistry
M. Y. Heo
Gyeongsang National University
D. S. Kim
Gyeongsang National University
Örjan Hansson
University of Gothenburg
J. H. Ahn
Gyeongsang National University
Patrik Johansson
Chalmers, Applied Physics, Condensed Matter Physics
Lars Öhrström
Chalmers, Chemical and Biological Engineering, Physical Chemistry
Aleksandar Matic
Chalmers, Applied Physics, Condensed Matter Physics
Per Jacobsson
Chalmers, Applied Physics, Condensed Matter Physics
Electrochemistry Communications
1388-2481 (ISSN)
Vol. 21 1 50-53Subject Categories
Inorganic Chemistry
Driving Forces
Sustainable development
Areas of Advance
Energy
Materials Science
DOI
10.1016/j.elecom.2012.05.016