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Redox shuttle additives for chemical overcharge protection in lithium ion batteries
| Content Provider | Semantic Scholar |
|---|---|
| Author | Lee, Doug Youn Lee, Hyo-Sug Kim, Ho-Sung Sun, Hee-Young Seung, Doyoung |
| Copyright Year | 2002 |
| Abstract | We disclosed that a few kinds of aromatic compounds having thianthrene derivatives with acetyl or other functional groups were stable up to about 4.2-4.3 V against lithium. These materials, called redox shuttle, have lately been employed as a chemical overcharge protection agent that consumes the excess current during battery overcharge. They oxidized above 4 V and worked as redox shuttle when introduced into the electrolyte of a Carbon/LiCoO2 prismatic battery within less than one hour rate (1C). We also studied thermal properties of batteries containing the above-mentioned materials with ARC (Accelerating Rate Calorimeter). We ascertained that the current supplied over the full charge was not stored, but instantly and quite completely consumed in an oxidation-reduction reaction. |
| Starting Page | 645 |
| Ending Page | 652 |
| Page Count | 8 |
| File Format | PDF HTM / HTML |
| DOI | 10.1007/BF02699311 |
| Volume Number | 19 |
| Alternate Webpage(s) | https://www.cheric.org/PDF/KJChE/KC19/KC19-4-0645.pdf |
| Alternate Webpage(s) | https://doi.org/10.1007/BF02699311 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
