Ceramic separators based on Li+-conducting inorganic electrolyte for high-performance lithium-ion batteries with enhanced safety
- Authors
- Jung, Yun-Chae; Kim, Seul-Ki; Kim, Moon-Sung; Lee, Jeong-Hye; Han, Man-Seok; Kim, Duck-Hyun; Shin, Woo-Cheol; Ue, Makoto; Kim, Dong-Won
- Issue Date
- Oct-2015
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- Ceramic separator; Inorganic electrolyte; Lithium lanthanum zirconium oxide; Lithium-ion battery; Separator-electrode assembly
- Citation
- JOURNAL OF POWER SOURCES, v.293, pp.675 - 683
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF POWER SOURCES
- Volume
- 293
- Start Page
- 675
- End Page
- 683
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/156289
- DOI
- 10.1016/j.jpowsour.2015.06.001
- ISSN
- 0378-7753
- Abstract
- Flexible ceramic separators based on Li+-conducting lithium lanthanum zirconium oxide are prepared as thin films and directly applied onto negative electrode to produce a separator-electrode assembly with good interfacial adhesion and low interfacial resistances. The ceramic separators show an excellent thermal stability and high ionic conductivity as compared to conventional polypropylene separator. The lithium-ion batteries assembled with graphite negative electrode, Li+-conducting ceramic separator and LiCoO2 positive electrode exhibit good cycling performance in terms of discharge capacity, capacity retention and rate capability. It is also demonstrated that the use of a ceramic separator can greatly improve safety over cells employing a polypropylene separator, which is highly desirable for lithium-ion batteries with enhanced safety.
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