کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1289257 | 973294 | 2011 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Overcharge protection effect and reaction mechanism of cyclohexylbenzene for lithium ion batteries Overcharge protection effect and reaction mechanism of cyclohexylbenzene for lithium ion batteries](/preview/png/1289257.png)
We studied the relationship between the structure of aromatic compounds and the overcharge protection effect, using cyclohexylbenzene, isopropylbenzene, and toluene as the overcharge protection agents. Cyclohexylbenzene proved to be the most effective overcharge protection agent among these aromatic compounds. The effect is enhanced using a higher concentration of cyclohexylbenzene and elevated temperatures. The reaction product of cyclohexylbenzene was analyzed using field desorption mass spectrometry to elucidate its reaction mechanism. The results suggested that some of the overcharge reaction products of CHB were more reactive than that of IPB, which is consistent with the better suppressing effect on overcharging of the active material in the positive electrode.
Research highlights▶ Three aromatic compounds were used as overcharge protection agents. ▶ Cyclohexylbenzene proved to be the most effective overcharge protection agent. ▶ The overcharge protection effect is enhanced by high concentration and temperatures.
Journal: Journal of Power Sources - Volume 196, Issue 8, 15 April 2011, Pages 3881–3886