Comments welcome via email: <a href="mailto:natalie@wfu.edu"> 
natalie@wfu.edu. </a><br><br>

<h4>
Structural and electrolyte properties of 
Li<sub>4</sub>P<sub>2</sub>S<sub>6</sub></h4>
<p>
   Zachary D. Hood, Cameron Kates, Melanie Kirkham, Shiba Adhikari,
      Chengdu Liang,  and N.A.W. Holzwarth<br />
      <a href="http://dx.doi.org/10.1016/j.ssi.2015.10.015">
      Solid State Ionics  <b>284</b>, 61-70 (2015)</a> &nbsp;
      <a href="./Li4P2S6.pdf">Local copy</a><p>

<p>
<hr></p>

Experiment and simulations are used to investigate the structural and 
electrolyte properties of Li<sub>4</sub>P<sub>2</sub>S<sub>6</sub>. Compared
with other thiophosphate materials, Li<sub>4</sub>P<sub>2</sub>S<sub>6</sub>
 is quite stable,maintaining its crystal structure up to temperatures as
high as 950  deg. C in vacuum and up to 280 deg. C in air. While its ionic 
conductivity is small, 2.38 × 10<sup>−7</sup> S/cm at 25 deg. C
and 2.33 × 10<sup>−6</sup> S/cm at 100 deg. C, its Arrhenius activation 
energy of 0.29 eV is similar to technologically viable electrolytes.
Computer simulations provide insight into the causes and effects of 
disorder in this material and also
indicate that the mechanism of the ion conduction is dominated by 
interstitial sites.

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