Improvement of Lithium-Ion Battery Performance by Two-Layered Slot-Die Coating Operation
| Autor: | Carlos Tiu, Li-Chun Chen, Ta-Jo Liu, Darjen Liu, Wen-Bing Chu |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Battery (electricity)
Materials science 020209 energy 02 engineering and technology engineering.material 021001 nanoscience & nanotechnology Cathode Lithium-ion battery law.invention Anode General Energy Coating law Electrode 0202 electrical engineering electronic engineering information engineering engineering Particle Composite material 0210 nano-technology Layer (electronics) |
| Zdroj: | Energy Technology. 5:1235-1241 |
| ISSN: | 2194-4288 |
| DOI: | 10.1002/ente.201600536 |
| Popis: | The cathode and anode electrodes in lithium-ion batteries typically contain a significant proportion of particles and binders. During the electrode drying process, the high temperature will lead to the so-called "binder migration" phenomenon. Uneven particle/binder distribution can cause poor adhesion between coating and substrate, disruption of conductive paths and decrease in electrode performance. In this study, a two-layered cathode was designed using separate compositions of slurry ingredients in each layer, as produced by means of a simultaneous multilayer coating method. The two-layered cathode with the top layer containing less binder than the bottom layer was found to yield a better particle/binder distribution in the final structure under high temperature drying. The battery made with the two-layered cathode appeared to give a better overall performance. |
| Databáze: | OpenAIRE |
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