You are not logged in.
Openly accessible

A single cation or anion dendrimer-based liquid electrolyte

Sen, Sudeshna, Jayappa, Rudresha B., Zhu, Haijin, Forsyth, Maria and Bhattacharyya, Aninda J. 2016, A single cation or anion dendrimer-based liquid electrolyte, Chemical science, vol. 7, no. 5, pp. 3390-3398, doi: 10.1039/c5sc04584c.

Attached Files
Name Description MIMEType Size Downloads
zhu-singlecationoranion-2016.pdf Published version application/pdf 901.18KB 1

Title A single cation or anion dendrimer-based liquid electrolyte
Author(s) Sen, Sudeshna
Jayappa, Rudresha B.
Zhu, Haijin
Forsyth, Maria
Bhattacharyya, Aninda J.
Journal name Chemical science
Volume number 7
Issue number 5
Start page 3390
End page 3398
Total pages 9
Publisher Royal Society of Chemistry
Place of publication Cambridge, Eng.
Publication date 2016
ISSN 2041-6520
2041-6539
Keyword(s) Science & Technology
Physical Sciences
Chemistry, Multidisciplinary
Chemistry
RECHARGEABLE LITHIUM BATTERIES
SPACE-CHARGE REGIONS
BLOCK-COPOLYMER ELECTROLYTES
POLYMER GEL ELECTROLYTES
ION TRANSFERENCE NUMBER
SOGGY SAND ELECTROLYTES
SOLID 2-PHASE SYSTEMS
CONDUCTION CONTRIBUTION
TRANSPORT
SALT
Summary We propose here a novel liquid dendrimer-based single ion conductor as a potential alternative to conventional molecular liquid solvent-salt solutions in rechargeable batteries, sensors and actuators. A specific change from ester (-COOR) to cyano (-CN) terminated peripheral groups in generation-one poly(propyl ether imine) (G1-PETIM)-lithium salt complexes results in a remarkable switchover from a high cation (tLi+ = 0.9 for -COOR) to a high anion (tPF6- = 0.8 for -CN) transference number. This observed switchover draws an interesting analogy with the concept of heterogeneous doping, applied successfully to account for similar changes in ionic conductivity arising out of dispersion of insulator particle inclusions in weak inorganic solid electrolytes. The change in peripheral group simultaneously affects the effective ionic conductivity, with the room temperature ionic conductivity of PETIM-CN (1.9 × 10-5 Ω-1 cm-1) being an order of magnitude higher than PETIM-COOR (1.9 × 10-6 Ω-1 cm-1). Notably, no significant changes are observed in the lithium mobility even following changes in viscosity due to the change in the peripheral group. Changes in the peripheral chemical functionality directly influence the anion mobility, being lower in PETIM-COOR than in PETIM-CN, which ultimately becomes the sole parameter controlling the effective transport and electrochemical properties of the dendrimer electrolytes.
Language eng
DOI 10.1039/c5sc04584c
Field of Research 030301 Chemical Characterisation of Materials
030604 Electrochemistry
Socio Economic Objective 850602 Energy Storage (excl. Hydrogen)
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2016, The Royal Society of Chemistry
Free to Read? Yes
Use Rights Creative Commons Attribution licence
Persistent URL http://hdl.handle.net/10536/DRO/DU:30083132

Document type: Journal Article
Collections: Institute for Frontier Materials
Open Access Collection
Connect to link resolver
 
Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved.

Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.

Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 0 times in TR Web of Science
Scopus Citation Count Cited 0 times in Scopus
Google Scholar Search Google Scholar
Access Statistics: 50 Abstract Views, 2 File Downloads  -  Detailed Statistics
Created: Fri, 29 Apr 2016, 11:31:46 EST

Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.