Conventional cathode materials utilized in Li-ion batteries are of an intercalation-type and commonly crystalline. Such cathodes typically exhibit a highest charging potential of less than around 4.3 V vs. Li/Li+, gravimetric capacity less than 180 mAh/g (based on the mass of active material) and volumetric capacity of less than 800 mAh/cm³ (based on the volume of the electrode and not counting the volume occupied by the current collector foil). For given anodes, higher energy density in Li-ion batteries may be achieved either by using higher-voltage cathodes (cathodes with a highest charging potential from around 4.35 V vs. Li/Li+ to around 5.1 V vs. Li/Li+) and/or higher capacity cathodes (e.g., cathode with a gravimetric capacity of more than about 180 mAh/g, such as between around 180 mAh/g and around 300 mAh/g based on the mass of active material). Some high capacity intercalation-type cathodes may comprise nickel (Ni). Some high capacity intercalation-type cathodes may comprise manganese (Mn). Some high capacity intercalation-type cathodes may comprise cobalt (Co). In some designs, intercalation-type cathode particles may comprise fluorine (F) in their structure or the surface layer. Some high capacity lithium nickel cobalt manganese oxide (NCM) cathodes or lithium nickel cobalt aluminum oxide (NCA) cathodes or lithium nickel aluminum oxide cathodes or lithium manganese oxide (LMO) or various mixed lithium metal oxide cathodes may be particularly attractive for automotive cells (cells used in electric vehicles or hybrid electric vehicles). Combination of such types of higher capacity (compared to conventional ones) intercalation-type cathodes with high-capacity (e.g., Si based) anodes may result in high cell-level energy density. Unfortunately, the cycle stability and other performance characteristics of such cells may not be sufficient for some applications, at least when used in combination with conventional electrolytes.