Relationship between Segmental Dynamics and Li-ion Conductivity in Polymer and Hybrid Electrolytes for solid-state batteries.
The exceptional combination of high energy and power density has made Li-ion batteries the energy storage technology of choice for portable electronic devices and electric vehicles. The next challenge is to implement solid-state electrolyte to allow safer batteries with higher storage properties. Many materials (inorganic or organic) have been studied to that end, but polymer electrolytes (SPE) and their hybrids stands out. Contrary to PEO-based SPE, poly(trimetylene carbonate) (PTMC) synthesized via ring opening polymerization are showing interesting electrochemical properties. The presence of carbonate groups and the higher lithium transference number suggest a different ionic motion mechanism from PEO. Yet, knowledge lacks on the involved molecular-based mechanisms in PTMC. Those mechanisms are key to optimize materials and tackle the conductivity bottleneck in soft electrolytes. In this regard, an interesting option is to consider hybrids composed of PTMC and highly-conducting garnet-type ceramics (e.g. LLZO). Here we propose to investigate i) the relation between ionic conduction and chain dynamics in PTMC polymers and ii) the impact of hybridization on the dynamics.
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The recommended format for citing this dataset in a research publication is in the following format:
LYONNARD Sandrine; APPEL Markus; BERNARD Laurent; NAVALLON Guillaume and PICARD Lionel. (2021). Relationship between Segmental Dynamics and Li-ion Conductivity in Polymer and Hybrid Electrolytes for solid-state batteries.. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.6-07-94
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