Ionic Conductivity in Ordered and Disordered Phases of Plastic Crystals

1994 ◽  
Vol 141 (7) ◽  
pp. 1921-1927 ◽  
Author(s):  
Dhanesh Chandra ◽  
Jeffrey H. Helms ◽  
Amitav Majumdar
Polymers ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 1981
Author(s):  
Rafael Del Olmo ◽  
Nerea Casado ◽  
Jorge L. Olmedo-Martínez ◽  
Xiaoen Wang ◽  
Maria Forsyth

Mixed ionic-electronic conductors, such as poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS) are postulated to be the next generation materials in energy storage and electronic devices. Although many studies have aimed to enhance the electronic conductivity and mechanical properties of these materials, there has been little focus on ionic conductivity. In this work, blends based on PEDOT stabilized by the polyelectrolyte poly(diallyldimethylammonium) (PolyDADMA X) are reported, where the X anion is either chloride (Cl), bis(fluorosulfonyl)imide (FSI), bis(trifluoromethylsulfonyl)imide (TFSI), triflate (CF3SO3) or tosylate (Tos). Electronic conductivity values of 0.6 S cm−1 were achieved in films of PEDOT:PolyDADMA FSI (without any post-treatment), with an ionic conductivity of 5 × 10−6 S cm−1 at 70 °C. Organic ionic plastic crystals (OIPCs) based on the cation N-ethyl-N-methylpyrrolidinium (C2mpyr+) with similar anions were added to synergistically enhance both electronic and ionic conductivities. PEDOT:PolyDADMA X / [C2mpyr][X] composites (80/20 wt%) resulted in higher ionic conductivity values (e.g., 2 × 10−5 S cm−1 at 70 °C for PEDOT:PolyDADMA FSI/[C2mpyr][FSI]) and improved electrochemical performance versus the neat PEDOT:PolyDADMA X with no OIPC. Herein, new materials are presented and discussed including new PEDOT:PolyDADMA and organic ionic plastic crystal blends highlighting their promising properties for energy storage applications.


2018 ◽  
Vol 47 (4) ◽  
pp. 497-499 ◽  
Author(s):  
Masaya Matsuki ◽  
Teppei Yamada ◽  
Shun Dekura ◽  
Hiroshi Kitagawa ◽  
Nobuo Kimizuka

Author(s):  
Colin S. M. Kang ◽  
Ruhamah Yunis ◽  
Haijin Zhu ◽  
Cara M. Doherty ◽  
Oliver E. Hutt ◽  
...  

The synthesis and characterisation of a series of new oxazolidinium-based salts shows that ether functionality in the ring can have beneficial impacts on properties including ionic conductivity.


2019 ◽  
Vol 43 (10) ◽  
pp. 4008-4012 ◽  
Author(s):  
Shun Yamaguchi ◽  
Hiromasa Yamada ◽  
Yuko Takeoka ◽  
Masahiro Rikukawa ◽  
Masahiro Yoshizawa-Fujita

Pyrrolidinium-based plastic crystals were synthesised with various anions to investigate the effect of the anion structure on the properties.


2018 ◽  
Vol 20 (6) ◽  
pp. 4579-4586 ◽  
Author(s):  
Jun Rao ◽  
R. Vijayaraghavan ◽  
Yundong Zhou ◽  
Patrick C. Howlett ◽  
Douglas R. MacFarlane ◽  
...  

Protic organic ionic plastic crystals based on different anions exhibit more than two orders of magnitude difference in conductivity.


2020 ◽  
Vol 153 (1) ◽  
pp. 014502
Author(s):  
D. Reuter ◽  
K. Seitz ◽  
P. Lunkenheimer ◽  
A. Loidl

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