Influence of Surface Area Change of Spinel Cathode on High-Temperature Storage Behavior of Lithium-Ion Pouch Cell
- Authors
- Kim, Daeun; Lee, Ilbok; Kim, Jaekwang; Ryu, Ji Heon; Son, Hyungbin; Ha, Kyoung-Su; Yoon, Songhun
- Issue Date
- Nov-2015
- Publisher
- WILEY-V C H VERLAG GMBH
- Keywords
- Surface area; Lithium manganese spinel; Lithium-ion pouch cell; High-temperature storage
- Citation
- BULLETIN OF THE KOREAN CHEMICAL SOCIETY, v.36, no.11, pp 2658 - 2663
- Pages
- 6
- Journal Title
- BULLETIN OF THE KOREAN CHEMICAL SOCIETY
- Volume
- 36
- Number
- 11
- Start Page
- 2658
- End Page
- 2663
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/8959
- DOI
- 10.1002/bkcs.10541
- ISSN
- 0253-2964
1229-5949
- Abstract
- We investigate the effect of surface area of the lithium manganese spinel (LMO) cathode on the high-temperature storage performance of lithium-ion pouch cells. Using similar to 200 mAh design capacity, pouch cells were fabricated and their storage performance at high temperature was investigated according to changes in the LMO surface area. Cell performance and electrode analysis revealed that LMO with a large surface area exhibited a poor storage with a large decrease in capacitance and a more severe increase in resistance. This was mostly attributed to the change in surface morphology of anodes in each cell, indicative of the fast growth of a solid electrolyte interface film caused by high dissolution of Mn2+ ions in the high-surface-area LMO.
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