Table 2.

Overview of the electrode types per battery and their corresponding capacities and voltages.

Battery	Component	Material	Capacity (mAh g−1)	Voltage (V)	Storage Mechanism	Source
Na-ion	Cathode	Metal oxides	>200	3.5	Intercalation	[53]
		Polyanions	>90	3.4	Intercalation	[58]
		Organic compounds	255	2.2	Pseudo-capacitor	[72]
Mg-ion	Cathode	Metal oxides	250	1.0	Intercalation	[78]
		Metal Selenides	204	1.27	Intercalation	[24]
		Metal sulfides	146	2.0	Intercalation	[87]
	Cathode and anode	Carbon-based	171	1.33	Co-intercalation	[84]
	Anode	Metal alloys	325	1.3	Alloying	[85]
Zn-ion	Cathode	Metal oxides	396	1.4	Intercalation and conversion	[108]
		Metal sulfides	180	1.8	Intercalation and conversion	[110]
		Polyanions	101	1.23	Intercalation	[113]
		Carbon-based	122	1.7	Pseudo-capacitor	[118]
Al-ion	Cathode	Metal alloys	370	1.95	Intercalation	[128]
		Carbon based	104	2.55	Intercalation	[138]
		Metal sulfides	406	2.4	Intercalation	[137]
		Metal selenides	427	2.1	Intercalation	[14]
		Metal phosphides/phosphites	61	2.2	Alloying	[142]