Berlin 2024 – scientific programme
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 15: Poster I
CPP 15.24: Poster
Monday, March 18, 2024, 18:00–20:00, Poster C
Operando study on structure-activity relationship between electrolyte components and electrochemical performance for all-solid-state lithium-ion batteries — •Yingying Yan1, Liangzhen Liu3, Yuxin Liang1, Fabian A.C. Apfelbeck1, Guangjiu Pan1, and Peter Müller-Buschbaum1,2 — 1TUM School of Natural Sciences, Chair for Functional Materials, 85748 Garching, Germany — 2TUM, MLZ, 85748 Garching, Germany — 3TUM School of Natural Sciences, Chair of Inorganic and Metal-Organic Chemistry, 85748 Garching, Germany
All-solid-state lithium-ion batteries (ASSLIBs) have received extensive attention as one of the most promising power sources for flexible and wearable electronics. However, the practical application of ASSLIBs has been hindered by poor interfacial stability and inferior ionic conductivity. Solid polymer electrolytes (SPEs), as an important component in ASSLIBs, play a crucial role in determining the overall electrochemical properties, specifically for PEO and PEO-based derivatives, because of their superior interfacial compatibility, wide electrochemical windows and high ionic conductivity. Several strategies have been adopted to address the above issues, nevertheless, the SPEs degradation mechanism is still not clear and needs to be further studied. Therefore, we combined electrochemical characterization and morphological structure characterization to elucidate the structure-activity relationship between the component structure of the electrolyte and the electrochemical performance.
Keywords: All-solid-state lithium-ion batteries; Solid polymer electrolytes; PEO