Electrochemical Properties of Electrodes Derived from NaTi3O6OH·2H2O in Sodium and Lithium Cells
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Environmental Energy Technologies Division
Materials derived from the layered compound NaTi3O6OH·2H2O, also known as “sodium nonatitanate” or NNT, have recently been found to undergo reversible sodium or lithium intercalation processes at very low potentials. While practical discharge capacities in lithium cells can be above 200 mAh/g, making them of interest for high-energy applications, the presence of mobile sodium in the materials complicates the cycling behavior. A simple ion-exchange process prior to incorporation in electrochemical cells removes all sodium ions, producing the lithiated form of the material. The lithiated material (LNT) performs similarly to NNT in lithium cells, although coulombic inefficiencies are somewhat higher. A comparison is made between the behavior of NNT in sodium cells and that of NNT and the lithiated analog in lithium cells.
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC); LBNL Laboratory Directed Research and Development (LDRD) Program
- Grant/Contract Number:
- AC02-05CH11231
- OSTI ID:
- 1469152
- Report Number(s):
- LBNL-181397; ir:181397
- Journal Information:
- Journal of the Electrochemical Society, Vol. 162, Issue 1; ISSN 0013-4651
- Publisher:
- The Electrochemical SocietyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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