Improvement of Thermal Stability of Lithium Ion Pouch Type Cell

Improvement of Thermal Stability of Lithium Ion Pouch Type Cell

In this study, we investigated the reason why the thermal stability of the pouch type cell was improved after applying the dopant to the cathode active material. Through EXAFS analysis of cathode, it was confirmed that the dopant acts as a structural stabilizer in the cathode active material at over...

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Veröffentlicht in:ECS transactions 2018-01, Vol.85 (13), p.315-320
Hauptverfasser: Sung, Changhun, Kim, Hyejung, Kim, Cheon-Soo, Kim, Min Gyu, Jeong, Kyeong-Min
Format: Artikel
Sprache:eng
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Zusammenfassung:In this study, we investigated the reason why the thermal stability of the pouch type cell was improved after applying the dopant to the cathode active material. Through EXAFS analysis of cathode, it was confirmed that the dopant acts as a structural stabilizer in the cathode active material at overheating condition. The SEI composition of anode is also analyzed to find the reason of the safety enhancement. It is re-confirmed that the cell safety is improved by thermal ramping test and mechanical short test of 3.2Ah pouch type cell.
ISSN:1938-5862
1938-6737
1938-6737
1938-5862
DOI:10.1149/08513.0315ecst