Graphite is regarded as a promising positive electrode (=cathode) for anion intercalation for decades due to its high operating potential (>4.50 V vs Li|Li+; > 2.22 V vs Zn|Zn2+; >1.46 V vs standard hydrogen electrode (SHE); 1.26 V vs Ag|AgCl), high abundance, low cost, low toxicity without use of any transition metals, and high overall safety. Nevertheless, due to its high operation potential, it is challenging to find suitable electrolytes, particularly in any aqueous system due to parasitic side reactions such as oxygen evolution reactions (OER) at the cathode. In this work, natural graphite (NG) is enabled as a cathode material using an aqueous system in a new “water-in-bisalt” electrolyte. We present a graphite || zinc (Zn) metal dual-ion battery (ZnG-DIB) that operates at remarkably high voltage of ˜2.3 – 2.5 V in an aqueous Zn system. Anions intercalate into a NG cathode at an on-set potential of ˜1.5 V vs Ag|AgCl (˜2.46 V vs Zn|Zn2+), delivering a reversible capacity of ˜110 mAh g–1 with high rate capability reaching a capacity of nearly 60 mAh g–1 at a charge/discharge current of 5000 mA g–1. Over 200 cycles are achieved with over 80% capacity retention in a graphite || Zn metal full-cell, showing the stability of the graphite cathode and the Zn metal negative electrode (=anode) in the electrolyte. A suite of characterization techniques collectively prove anion intercalation takes place and provide insights into the mechanism of anion intercalation into NG.