Journal
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
Volume 59, Issue 13, Pages 5858-5864Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.iecr.0c00847
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Funding
- Fundamental Research Funds for the Central Universities [2018JBZ107]
- Ministry of Science and Technology of China [2018YFE0124600]
- National Natural Science Foundation of China [91961125]
- Chemistry and Chemical Engineering Guangdong Laboratory [1932004]
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The unsatisfied low-temperature performance of anode materials in Li-ion batteries (LIBs) remains an unsolved challenge in the development of LIBs. In particular, the inferior Li-ion diffusion kinetics at lower temperatures limits the capacity and durability of LIBs. Extensive research studies have confirmed that a novel structural design of the anode material is of fundamental importance to solve the problem. In this work, we reported a highly branched nitrogen-doped graphitic (BNG) tubular foam obtained by the chemical vapor deposition (CVD) method. The optimized C-N moieties, serving as the active atomic realm, motivated superior Li+-diffusion and converted relatively inert original localized carbon networks into active materials for lithium-ion storage at low temperatures. Thus, a desired reversible capacity (222.5 mAh g(-1)) and a good cycling stability (218.8 mAh g(-1)) after 150 cycles at 0.1C) for LIBs were achieved at -10 degrees C. These results have significant implications for the novel anode design toward low-temperature Li-ion storage.
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