期刊
JOURNAL OF MATERIALS CHEMISTRY C
卷 9, 期 21, 页码 6760-6765出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1tc01069g
关键词
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资金
- National Natural Science Foundation of China [61822405, 62074111]
- Beijing National Laboratory for Molecular Sciences [BNLMS201904]
- Science & Technology Foundation of Shanghai [19JC1412402, 20JC1415600]
- Fundamental Research Funds for the Central Universities
- Shanghai Pujiang Program [19PJ1409900]
The study introduced a miniaturized sensor based on functionalized double-walled carbon nanotubes to detect DMC vapours and monitor electrolyte leakage from lithium-ion batteries, showing high sensitivity and fast response/recovery speed.
Lithium-ion batteries are widely used in our daily lives but the failure of batteries may lead to serious consequences. As a result, there is an urgent need to ensure the safety of lithium-ion batteries. Lithium-ion battery failure is often associated with electrolyte vapour leakage, which can be a warning signal. However, it is difficult to detect trace amounts of electrolyte leakage because the major components of electrolytes are redox-neutral carbonates such as dimethyl carbonate (DMC). In this study, we reported a miniaturized sensor based on functionalized double-walled carbon nanotubes to detect DMC vapours and monitor electrolyte leakage from lithium-ion batteries. The response of the sensor was obvious even when the leakage levels were as low as only 0.1 mu L DMC. Real-time detection of DMC vapours and electrolytes demonstrated high sensitivity and fast response/recovery speed. Therefore, this work not only demonstrated the application of double-walled carbon nanotubes in chemical sensors to detect battery electrolytes with high sensitivity, stability, and rapid response, but also provided a promising method to improve the safety of lithium-ion batteries.
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