Nanostructures and Lithium Electrochemical Reactivity of Lithium Titanites and Titanium Oxides: A Review

Journal Article · Wed Jul 15 00:00:00 EDT 2009 · Journal of Power Sources, 192(2):588-598

DOI:https://doi.org/10.1016/j.jpowsour.2009.02.038· OSTI ID:974496

Yang, Zhenguo; Choi, Daiwon; Kerisit, Sebastien N; Rosso, Kevin M; Wang, Donghai; Zhang, Jiguang; Graff, Gordon L; Liu, J

Being inherently safe and chemically compatible with the electrolyte, titanium oxidebased materials, including both Li-titanites and various TiO2-polymorphs, are considered alternatives to carbonaceous anodes in Li-ion batteries. Given the commercial success of the spinel lithium titanites, TiO2-polymorphs, in particular in nanostructured forms, have been fabricated and investigated for the applications. Nanostructuring leads to increased reaction areas, shortened Li+ diffusion and potentially enhanced solubility/capacity. Integration with an electron conductive second phase into the TiO2-based nanostructures eases the electron transport, resulting in further improved lithium electrochemical activity and the overall electrochemical performance. This paper reviews structural characteristics and Li-electrochemical reactivity, along with synthetic approaches, of nanostructures and nano-composites based on lithium titanites and TiO2-polymorphs that include rutile, anatase, bronze and brookite.

• Research Organization: Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 974496
• Report Number(s): PNNL-SA-62209
• Journal Information: Journal of Power Sources, 192(2):588-598, Journal Name: Journal of Power Sources, 192(2):588-598
• Country of Publication: United States
• Language: English

Related Subjects

Li-ion battery
anode
TiO2