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The energy density calculation model: (1) The weight and volume fraction of cathode in the electrode: The calculation model referred to the literature, and some data also collected from it28. The three types of batteries, including All-Electrochem-Active all solid-state battery (AEA -ASSLBs), the commercial Liquid Li-ion batteries (Liquid LIBs), and All solid-state lithium metal battery (ASSLBs) are compared with each other whose detailed calculation information shows in Table S1, Table S2 and Table S3. The AEA electrode of AEA -ASSLBs is calculated based on 100 % Mo6S8, whose porosity is 11 vol. % under 360 MPa (Table S6). The electrode of Liquid LIBs is comprised of the active material, the carbon additive, the binder whose porosity is in the range of 30- 40%. Assuming all the porosity is filled by the liquid electrolyte. The electrode of ASSLBs is comprised of the active material with an average active material (AM) density of 4 g cm-3, the carbon additive, the binder, and the sulfide-based solid-state electrolyte (1.87 ~ 1.97 g cm-3). The mass fraction of the active material is ~ 80%, representing the highest level in All-solid-state as the previous reports, whose porosity is assumed to the same as AEA ASSLBs (11 vol.%). (2) The energydensityofthe cathode and electrode: To better represent our advantage, we used a new expression of equivalent specific capacity (ESC) to assess the energy density in the electrode level where the electrode weight is used instead of the weight of the cathode. Where C is the capacity of the cathode, melectrode= mcathode+mbinder+melectrolyte absorbed in the electrode+mconductive additive. The energy density is calculated by: ∫ However, as for the traditional calculation, the energy density is calculated by:PDF Image | Dense All-Electrochem-Active Electrodes for All-Solid-State Lithium Batteries
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