Abstract
Monte Carlo simulations combined with analytic results based on the dynamically disordered hopping model are used to show that even in the presence of ion-ion interactions, the conductivity of polymer electrolytes is diffusion dominated. Coulomb interactions between charge carriers do result in some collective correlations that affect the conductivity, as evidenced by deviations from the Nernst Einstein equation, but the action of these interactions on the diffusivity overshadows these effects. Furthermore, these results show that renewal limited behavior (the diffusion coefficient depends linearly on the host's renewal rate) can persist even in the presence of these interactions. These studies help resolve the role ion-ion interactions play in renewal dominated behavior.
| Original language | English |
|---|---|
| Pages (from-to) | 2041-2048 |
| Number of pages | 8 |
| Journal | Electrochimica Acta |
| Volume | 40 |
| Issue number | 13-14 |
| DOIs | |
| Publication status | Published - 1995 |
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Keywords
- conductivity
- Coulomb interactions
- diffusivity
- dynamically disordered hopping
- ion-ion interactions
- polymer electrolytes
ASJC Scopus subject areas
- Chemical Engineering(all)
- Electrochemistry
Cite this
Polymer electrolytes : The importance of ion-ion interactions in diffusion dominated behavior. / Lonergan, Mark C.; Shriver, Duward F.; Ratner, Mark A.
In: Electrochimica Acta, Vol. 40, No. 13-14, 1995, p. 2041-2048.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Polymer electrolytes
T2 - The importance of ion-ion interactions in diffusion dominated behavior
AU - Lonergan, Mark C.
AU - Shriver, Duward F.
AU - Ratner, Mark A
PY - 1995
Y1 - 1995
N2 - Monte Carlo simulations combined with analytic results based on the dynamically disordered hopping model are used to show that even in the presence of ion-ion interactions, the conductivity of polymer electrolytes is diffusion dominated. Coulomb interactions between charge carriers do result in some collective correlations that affect the conductivity, as evidenced by deviations from the Nernst Einstein equation, but the action of these interactions on the diffusivity overshadows these effects. Furthermore, these results show that renewal limited behavior (the diffusion coefficient depends linearly on the host's renewal rate) can persist even in the presence of these interactions. These studies help resolve the role ion-ion interactions play in renewal dominated behavior.
AB - Monte Carlo simulations combined with analytic results based on the dynamically disordered hopping model are used to show that even in the presence of ion-ion interactions, the conductivity of polymer electrolytes is diffusion dominated. Coulomb interactions between charge carriers do result in some collective correlations that affect the conductivity, as evidenced by deviations from the Nernst Einstein equation, but the action of these interactions on the diffusivity overshadows these effects. Furthermore, these results show that renewal limited behavior (the diffusion coefficient depends linearly on the host's renewal rate) can persist even in the presence of these interactions. These studies help resolve the role ion-ion interactions play in renewal dominated behavior.
KW - conductivity
KW - Coulomb interactions
KW - diffusivity
KW - dynamically disordered hopping
KW - ion-ion interactions
KW - polymer electrolytes
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UR - http://www.scopus.com/inward/citedby.url?scp=0000445799&partnerID=8YFLogxK
U2 - 10.1016/0013-4686(95)00139-6
DO - 10.1016/0013-4686(95)00139-6
M3 - Article
AN - SCOPUS:0000445799
VL - 40
SP - 2041
EP - 2048
JO - Electrochimica Acta
JF - Electrochimica Acta
SN - 0013-4686
IS - 13-14
ER -