期刊
DALTON TRANSACTIONS
卷 45, 期 2, 页码 458-461出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5dt03276h
关键词
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资金
- Mitsubishi Foundation
- Yazaki Memorial Foundation
- Nippon Sheet Glass Foundation
- Photon Factory Program Advisory Committee [2014G507]
Metal-hexacyanoferrates (metal-HCFs) are promising candidates for cathode materials of sodium-ion secondary batteries (SIBs). Here, we systematically investigated Na+ diffusion constants (D) and the activation energies (Ea) of metal-HCFs against the framework size (= a/2). We found that the magnitude of D (E-a) systematically increases (decreases) with increases in a, indicating that steric hindrance plays a dominant role in Na+ diffusion.
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