期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 2, 期 16, 页码 5696-5702出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ta14720g
关键词
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资金
- NSFC [21073029, 11234013, 51211140045]
- RFDP [20100185110019]
- Program for New Century Excellent Talents in University [NCET-10-0296]
- Fundamental Research Funds for the Central Universities [ZYGX2012Z003]
Lithium terephthalate (Li2C8H4O4) and its carboxylate-based derivatives have been proposed as advanced organic anodes for low cost lithium/sodium ion batteries. One of the key barriers for practical application is poor rate capability due to the intrinsic low electronic conductivity of most organic materials at room temperature. To overcome this issue, porous microspheres consisting of Li2C8H4O4 nanoparticles were synthesized by a common spray drying method for the first time. Furthermore, a straight-forward surface coating technique was developed using urea powder as nitrogen and carbon sources simultaneously. Consequently, a N-doped carbon layer was uniformly coated onto nanostructured Li2C8H4O4 electroactive material at 400 degrees C by chemical vapor deposition. The composite electrode displays excellent electrochemical performance under high current rate even at room temperature.
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