Effect of mixing method on the properties of composite cathodes for all-solid-state lithium batteries using Li2S-P2S5 solid electrolytes
- Authors
- Kim, Junghoon; Eom, Minyong; Noh, Sungwoo; Shin, Dongwook
- Issue Date
- Dec-2013
- Publisher
- ELSEVIER
- Keywords
- All-solid-state lithium ion battery; Solid electrolyte; Composite cathodes; Mixing method
- Citation
- JOURNAL OF POWER SOURCES, v.244, pp.476 - 481
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF POWER SOURCES
- Volume
- 244
- Start Page
- 476
- End Page
- 481
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/161333
- DOI
- 10.1016/j.jpowsour.2012.11.049
- ISSN
- 0378-7753
- Abstract
- Composite cathodes comprising the solid powders of LiCoO2, electrolyte and Super P carbon are prepared using three different mixing methods to apply to all-solid-state lithium batteries, and their morphological and electrochemical properties are compared. By applying the wet-mixing method, composite cathodes with greater homogenous distribution of solid particles are obtained when compared to those prepared by dry-mixing. As a result of this favorable feature, a higher discharge capacity of 84 mAh g(-1) and a capacity retention of 73% are maintained at the 50th cycle in the all-solid-state cell using the composite cathode prepared by wet-mixing with a ball mixer, which resulted from the smaller interfacial resistance for the intercalation/deintercalation of the Li ions in this composite cathode. This is determined to be due to the homogenous distribution of the constituent particles leading to significantly reduced electrode polarization.
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