Transition metal oxide/organic hybrids and conductive polymer nanocomposites
- Univ. of Waterloo, Ontario (Canada)
Transition metal oxides are used as cathode materials in the latest generation of rechargeable lithium batteries. Two problems that are encountered, however, are low electronic conductivity of the inorganic oxide over some regions of the redox range, and relatively poor lithium ion transport properties compared to other materials. A possibility for enhancing and expanding the range of the electronic conductivity of the metal oxide host material is to interleave conductive polymer chains between the atomic sheets of a layered inorganic oxide to create a polymer/oxide nanocomposite. Alternatively, there is much interest in the generation of {open_quotes}open-framework{close_quotes} inorganic structures that have the potential for less hindered Li ion mobility. This talk will address both approaches with illustrations from our recent work. The first portion will focus on structure-property relationships in new polymer-oxide nanocomposites of transition metal oxides (Mo, Ta, V) and conductive polymers. The second portion will discuss {open_quotes}open-framework{close_quotes} transition metal (Mn, V, MO) oxide/organic hybrid structures as hosts for Li ion insertion. The characterization of these materials using diffraction, thermal analysis, TEM, and conductivity measurements will be presented. In particular, the electrochemical properties of both types of materials will be presented, outlining the effect of the polymer on electrochemical lithium insertion reactions in the layered oxide hosts; and the effect of structure and organic guest species in hydrothermally-generated transition metal oxides.
- OSTI ID:
- 370639
- Report Number(s):
- CONF-960376-; TRN: 96:003805-0696
- Resource Relation:
- Conference: Spring national meeting of the American Chemical Society (ACS), New Orleans, LA (United States), 24-28 Mar 1996; Other Information: PBD: 1996; Related Information: Is Part Of 211th ACS national meeting; PB: 2284 p.
- Country of Publication:
- United States
- Language:
- English
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