Journal
ELECTROCHEMICAL AND SOLID STATE LETTERS
Volume 13, Issue 8, Pages A105-A108Publisher
ELECTROCHEMICAL SOC INC
DOI: 10.1149/1.3432254
Keywords
cobalt compounds; diffusion; electrochemical electrodes; lithium compounds; manganese compounds; nickel compounds; secondary cells; solid electrolytes; sputtering
Funding
- Science and Technology Commission of Shanghai Municipality [08DZ2270500, 09JC1401300]
- NSFC [20773031]
- [2007CB209702]
- [2007AA03Z322]
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Li(Ni1/4Mn1/2Co1/3)O-2 thin-film electrodes have been successfully fabricated by magnetron sputtering. The electrochemical behaviors of thin-film electrodes have been investigated in liquid and solid electrolytes. The reversible capacity of Li(Ni1/4Mn1/2Co1/3)O-2 is found to be above 30 mu Ah/cm(2) mu m in all-solid-state thin-film batteries cycled between 5.0 and 3.0 V. The diffusion constants of Li ion are calculated to be 1.62 x 10(-13) and 1.78 x 10(-13) cm(2)/s for deinsertion and insertion at ambient temperature, respectively. Our results demonstrated that the Li(Ni1/4Mn1/2Co1/3)O-2 film electrode could be selected as one of the promising candidates for all-solid-state thin-film rechargeable lithium batteries. (C) 2010 The Electrochemical Society. [DOI: 10.1149/1.3432254] All rights reserved.
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