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Determining and Minimizing Resistance for Ion Transport at the Polymer/Ceramic Electrolyte Interface AITranslate

X. Chelsea Chen; Xiaoming Liu; Amaresh Samuthira Pandian; Kun Lou; Frank M. Delnick; Nancy J. Dudney;
Oak Ridge National Laboratory; Oak Ridge National Laboratory; Oak Ridge National Laboratory; University of Tennessee; Oak Ridge National Laboratory; Oak Ridge National Laboratory
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Publisher: ACS
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Abstract AITranslate

In this work, we report methods to quantify and minimize the interfacial resistance for Li ion transport, Rinterface, between a model polymer electrolyte, poly(ethylene oxide) + LiCF3SO3 (PE), and a model Li+-conducting ceramic electrolyte, LICGC from Ohara Corporation. By constructing a PE–ceramic–PE trilayer cell, we found Rinterface to be very large, 1.2 kΩ·cm2 at 30 °C, accounting for 66% of the total trilayer cell resistance. When dimethyl carbonate, a loose-binding solvent of Li+, was introduced into the trilayer, Rinterface decreased to essentially zero. As a result, a composite electrolyte with carbonate plasticizers wherein 40 vol % ceramic particles were dispersed in the polymer showed extraordinary room-temperature conductivity of approximately 10–4 S/cm, 3 orders of magnitude higher than that of the dry composite electrolyte. This discovery can be used as guidance in designing composite electrolytes to achieve synergistic effects.

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DOI：https://doi.org/10.1021/acsenergylett.9b00495

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Citation Information:

In this work, we report methods to quantify and minimize the interfacial resistance for Li ion transport, Rinterface, between a model polymer electrolyte, poly(ethylene oxide) + LiCF3SO3 (PE), and a model Li+-conducting ceramic electrolyte, LICGC from Ohara Corporation. By constructing a PE–ceramic–PE trilayer cell, we found Rinterface to be very large, 1.2 kΩ·cm2 at 30 °C, accounting for 66% of the total trilayer cell resistance. When dimethyl carbonate, a loose-binding solvent of Li+, was introduced into the trilayer, Rinterface decreased to essentially zero. As a result, a composite electrolyte with carbonate plasticizers wherein 40 vol % ceramic particles were dispersed in the polymer showed extraordinary room-temperature conductivity of approximately 10–4 S/cm, 3 orders of magnitude higher than that of the dry composite electrolyte. This discovery can be used as guidance in designing composite electrolytes to achieve synergistic effects.

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GB/T 7714-2015 [1] X. Chelsea Chen, Xiaoming Liu, Amaresh Samuthira Pandian, et al. ACS Energy Letters, 2019(4). DOI:10.1021/acsenergylett.9b00495.
MLA [1] X. Chelsea Chen, et al., ACS Energy Letters, no. 4, 2019, https://doi.org/10.1021/acsenergylett.9b00495.
APA [1] X. Chelsea Chen, Xiaoming Liu, Amaresh Samuthira Pandian, Kun Lou, Frank M. Delnick, & Nancy J. Dudney. (2019). ACS Energy Letters(4). https://doi.org/10.1021/acsenergylett.9b00495
IEEE [1] X. Chelsea Chen, Xiaoming Liu, Amaresh Samuthira Pandian, Kun Lou, Frank M. Delnick, and Nancy J. Dudney, ACS Energy Letters, no. 4, 2019, doi: 10.1021/acsenergylett.9b00495.