Cation Transport in Polymer Electrolytes: A Microscopic Approach

Details Cation Transport in Polymer Electrolytes: A Microscopic Approach Cation Transport in Polymer Electrolytes: A Microscopic Approach

2007-03-08

arxiv.org/abs/cond-mat/0703224v2

Physics

Condensed Matter

Soft Condensed Matter

4 pages, 4 figures, Physical Review Letters in press

Scientific paper

10.1103/PhysRevLett.98.227802

A microscopic theory for cation diffusion in polymer electrolytes is presented. Based on a thorough analysis of molecular dynamics simulations on PEO with LiBF$_4$ the mechanisms of cation dynamics are characterised. Cation jumps between polymer chains can be identified as renewal processes. This allows us to obtain an explicit expression for the lithium ion diffusion constant D_{Li} by invoking polymer specific properties such as the Rouse dynamics. This extends previous phenomenological and numerical approaches. In particular, the chain length dependence of D_{Li} can be predicted and compared with experimental data. This dependence can be fully understood without referring to entanglement effects.

Affiliated with

Also associated with

No associations

Rating

Cation Transport in Polymer Electrolytes: A Microscopic Approach does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Cation Transport in Polymer Electrolytes: A Microscopic Approach, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cation Transport in Polymer Electrolytes: A Microscopic Approach will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-692485