Effects of binary conductive additives on electrochemical performance of a sheet-type composite cathode with different weight ratios of LiNi0.6Co0.2Mn0.2O2 in all-solid-state lithium batteriesopen access
- Authors
- Ann, Jiu; Choi, Sunho; Do, Jiyae; Lim, Seungwoo; Shin, Dongwook
- Issue Date
- Oct-2018
- Publisher
- KOREAN ASSOC CRYSTAL GROWTH, INC
- Keywords
- Conductive additive mixture; Solution-based process; Sulfide solid electrolyte; All-solid-state battery
- Citation
- JOURNAL OF CERAMIC PROCESSING RESEARCH, v.19, no.5, pp.413 - 418
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- JOURNAL OF CERAMIC PROCESSING RESEARCH
- Volume
- 19
- Number
- 5
- Start Page
- 413
- End Page
- 418
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/16043
- DOI
- 10.36410/jcpr.2018.19.5.413
- ISSN
- 1229-9162
- Abstract
- All-solid-state lithium batteries (ASSBs) using inorganic sulfide-based solid electrolytes are considered prospective alternatives to existing liquid electrolyte-based batteries owing to benefits such as non-flammability. However, it is difficult to form a favorable solid-solid interface among electrode constituents because all the constituents are solid particles. It is important to form an effective electron conduction network in composite cathode while increasing utilization of active materials and not blocking the lithium ion path, resulting in excellent cell performance. In this study, a mixture of fibrous VGCF and spherical nano-sized Super P was used to improve rate performance by fabricating valid conduction paths in composite cathodes. Then, composite cathodes of ASSBs containing 70% and 80% active materials (LiNi0.6Co0.2Mn0.2O2) were prepared by a solution-based process to achieve uniform dispersion of the electrode components in the slurry. We investigated the influence of binary carbon additives in the cathode of all-solid-state batteries to improve rate performance by constructing an effective electron conduction network.
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