2,3,6,7,10,11-Hexamethoxytriphenylene (HMTP): A new organic cathode material for lithium batteries
Artikel i vetenskaplig tidskrift, 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
Författare
Jae-Kwang Kim
Chalmers, Teknisk fysik, Kondenserade materiens fysik
Frederic Thebault
Chalmers, Teknisk fysik, Kondenserade materiens fysik
Chalmers, Kemi- och bioteknik, Fysikalisk kemi
M. Y. Heo
Gyeongsang National University
D. S. Kim
Gyeongsang National University
Örjan Hansson
Göteborgs universitet
J. H. Ahn
Gyeongsang National University
Patrik Johansson
Chalmers, Teknisk fysik, Kondenserade materiens fysik
Lars Öhrström
Chalmers, Kemi- och bioteknik, Fysikalisk kemi
Aleksandar Matic
Chalmers, Teknisk fysik, Kondenserade materiens fysik
Per Jacobsson
Chalmers, Teknisk fysik, Kondenserade materiens fysik
Electrochemistry Communications
1388-2481 (ISSN)
Vol. 21 1 50-53Ämneskategorier
Oorganisk kemi
Drivkrafter
Hållbar utveckling
Styrkeområden
Energi
Materialvetenskap
DOI
10.1016/j.elecom.2012.05.016