We investigate this direct-contact lithiation process in different carbon anodes using various lithium source structures, which can have a major impact on the lithiation times and the properties of the SEI formed, further impacting the electrode processing costs. The results of this study in half-cell configuration and the performance in LIC configuration will be presented, while elaborating on the lithiation rates, efficiency and structural characteristics. Our preliminary results show that the amount and the rates of lithiation greatly vary in different anodes (graphite- Gr, hard carbon - HC, resp.), depending on the type of lithium source structures employed (4 types). Figure 1 compares the lithiation in anodes loaded with two such lithium sources (Stabilized Lithium Metal Powder – SLMP, Lithium Foil Strips - FS), during the first 24 hours duration of electrolyte soaking. The presence and absence of staging mechanism is distinctly evident in the graphite and hard carbon anodes, respectively, mainly due to different interplanar spacing in them. The different rates of lithiation is also evident from the varying amounts of remnant loaded lithium source.
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