Lithium-ion battery electrodes based on commercial active material Ni 1/3 Co 1/3 Mn 1/3 O 2 were successfully manufactured by the electrophoretic deposition (EPD) approach. These electrodes contained a high density active material (90 wt. %), and the rest was carbon black as electrical conductivity enhancer material (10 wt. %).
The process involves three key stages: (1) preparation of colloidal electrolyte, (2) electrophoretic deposition of battery materials onto the working electrode, and finally (3) drying the deposited electrode and use directly as Lithium-ion battery cathode.
The electrode manufacturing procedure is as follows: battery constituents, which include (but are not necessarily limited to) the active material, conductive additive, and binder, are homogenized in a solvent. These components contribute to the capacity and energy, electronic conductivity, and mechanical integrity of the electrode.
All colloidal electrolyte contains a total of 5 g dm −3 materials loading, specifically 95 wt. % active materials (4.75 g dm-3 NMC) and 5 wt. % inactive materials (0.25 g dm −3 CB). These materials were dispersed in NMP solvent firstly, followed by the addition of 0.1 g dm −3 PDDA.
As modern energy storage needs become more demanding, the manufacturing of lithium-ion batteries (LIBs) represents a sizable area of growth of the technology. Specifically, wet processing of electrodes has matured such that it is a commonly employed industrial technique.
All electrophoretically deposited electrodes were not calendared in this work, but gives a controllable mass loading of battery materials at about 3 mg cm −2 to 30 mg cm −2. This implies the possibility that EPD approach may simplify electrode manufacture units operation.
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The process involves three key stages: (1) preparation of colloidal electrolyte, (2) electrophoretic deposition of battery materials onto the working electrode, and finally (3) drying …
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