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- Title
Carbon and Binder-Free Air Electrodes Composed of CoO Nanofibers for Li-Air Batteries with Enhanced Cyclic Performance.
- Authors
Lee, Chan; Park, Yong
- Abstract
In this study, to fabricate a carbon free (C-free) air electrode, CoO nanofibers were grown directly on a Ni mesh to obtain CoO with a high surface area and good contact with the current collector (the Ni mesh). In Li-air cells, any C present in the air electrode promotes unwanted side reactions. Therefore, the air electrode composed of only CoO nanofibers (i.e., C-free) was expected to suppress these side reactions, such as the decomposition of the electrolyte and formation of LiCO, which would in turn enhance the cyclic performance of the cell. As predicted, the CoO-nanofiber electrode successfully reduced the accumulation of reaction products during cycling, which was achieved through the suppression of unwanted side reactions. In addition, the cyclic performance of the Li-air cell was superior to that of a standard electrode composed of carbonaceous material.
- Subjects
ELECTRODES; CARBON compounds; CHEMICAL reactions; LITHIUM compounds; NONAQUEOUS electrolytes
- Publication
Nanoscale Research Letters, 2015, Vol 10, Issue 1, p1
- ISSN
1931-7573
- Publication type
Article
- DOI
10.1186/s11671-015-1027-8