期刊
ENERGY TECHNOLOGY
卷 6, 期 10, 页码 2058-2064出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ente.201800279
关键词
lithium ion batteries; additive manufacturing; curing behavior; thermal curable batteries; 3D printing battery ink
资金
- Korea Institute of Materials Science (KIMS) [PKC1900]
- Korea Institute of Energy Research (KIER) [B8-2417-02]
Novel Li-ion battery inks are integral elements to increase mechanical integrity and energy density of 3D printable batteries. Conventional battery inks have been limited to the Polyvinylidene fluoride (PVdF) and N-methyl-2 pyrrolidon (NMP) solvent that are unpleasant of long drying process and environmentally hazard solvent. As a novel Li-ion battery ink for highly energy densified 3D printable batteries, we have developed acrylate-based curable inks which demonstrate fast process, highly cross-linked polymerization and more eco-friend suspension. Here, we report a novel development of curable LIB ink with fundamental studies of rheology, curing behavior and electrochemical performances. The viscosity and activation energy of curable LIB inks are low and shear shinning behavior and 118.9 kJ/mol, respectively, which are appropriate for the extrusion 3D printer with nozzle radius of 0.75 mm and the speed of 5 mm/sec. Furthermore, electrochemical performance of capacity, oxidation peak and cycle retention is comparable to conventionally fabricated electrode.
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