Morphological, rheological and electrochemical studies ofpoly(ethylene oxide) electrolytes containing fumed silicananoparticles

Journal Article · Sun Jun 01 00:00:00 EDT 2003 · Solid State Ionics

OSTI ID:919369

Xie, Jiangbing; Kerr, John B; Duan, Robert G; Han, Yongbong

In this paper, the rheology and crystallization of composite Poly(Ethylene Oxide) (PEO) electrolytes were studied by dynamic mechanical analysis, DSC and polarized light microscopy. The effects of fumed silica nanoparticles on the conductivities of the polymer electrolytes at temperatures above and below their melting point were measured and related to their rheology and crystallization behavior, respectively. The electrolyte/electrode interfacial properties and cycling performances of the composite polymer electrolytes in Li/Li cells are also discussed. The measured electrochemical properties were found to depend heavily on the operational environments and sample processing history.

• Research Organization: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: USDOE. Assistant Secretary for Energy Efficiency andRenewable Energy. Vehicle Technologies
• DOE Contract Number: DE-AC02-05CH11231
• OSTI ID: 919369
• Report Number(s): LBNL-53156; SSIOD3; R&D Project: 473003; BnR: VT0301030; TRN: US200822%%254
• Journal Information: Solid State Ionics, Vol. 175, Issue 1-4; Related Information: Journal Publication Date: 11/2004; ISSN 0167-2738
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
CRYSTALLIZATION
ELECTROLYTES
MELTING POINTS
MICROSCOPY
POLYMERS
PROCESSING
RHEOLOGY
SILICA