Table 1. Energy density calculations for recently reported AZIB cathodes for various amounts of Zn in the anode.

Cathode	Avg. V (V vs. Zn/Zn2+)	Avg. Q (mA h g–1)	Current density (A g–1)	Mass loading (mg cm–2)	Theoretical Zn (mg)	EDtheoretical (W h kg–1)	ED50μm-Zn (W h kg–1)	ED250μm-Zn (W h kg–1)	Ref.
Zn0.25V2O5·nH2O	0.81	282	0.3	6.0	2.334	170	33.1	7.31	13
ZnMn2O4	1.35	150	0.05	1.08	0.4794	167	10.8	2.21	31
α-MnO2	1.44	260	0.308	3.0	1.076	284	29.2	6.09	16
Na2V6O16·3H2O	0.80	341	0.5	2.653	1.248	193	19.01	3.929	59
Mn-VOx	0.75	371	0.5	3.5	1.792	192	25.03	5.26	60
δ-MnO2 (birnessite)	1.5	350	0.1	2.0	0.9675	368	28.07	5.72	17
Zn0.3V2O5·nH2O	0.80	426	0.2	2.0	1.176	224	18.22	3.714	61
ZnHCF	1.7	65	0.06	8.0	anode: 0.7 a		102 (actual)		62
Na0.33V2O5	0.7	276	0.2	1.5	0.5712	144	7.85	1.584	63
CoFe(CN)6	1.75	173	0.3	n/a, assume 2.0	0.4774	250	16.19	3.30	64
VO2 (B)	0.75	357	0.1	n/a, assume 2.0	0.9851	187	14.31	2.918	14
LiV2(PO4)3/C	1.3		42-Stack pouch cell				156 (actual)		65
β-MnO2	1.35	258	0.2	2.0	0.7119	265	18.6	3.8	18
δ-MnO2–x	1.5	345	0.2	1.0	0.421	364	12.6	2.51	66
NaCa0.6V6O16·nH2O	0.75	347	0.1	1.1	0.5266	183	7.84	1.57	67
Cu3(HHTP)2	0.80	191	0.1	2.0	0.528	124	8.17	1.665	68
MnO2H0.16-(H2O)0.27	1.35	236	0.1	2.5	0.814	247	21.01	4.329	69
p-Chloranil	1.1	170	0.0434	2.4	0.563	155	11.87	2.44	70
Li–V2O5·nH2O	0.7	470	0.5	0.735	0.477	209	6.69	1.327	71
PANI–MnO2	1.5	280	0.2	2.0	0.7726	313	22.5	4.58	72
Calix[4]Quinone	1.0	335	0.02	2.5	1.156	238	22.1	4.55	73
H2V3O8	0.7	400	0.1	1.2	0.6623	188	9.18	1.84	21
V6O13	0.7	360	0.2	1.25	0.6209	175	8.59	1.72	15
MgxV2O5·nH2O	0.7	330	0.1	4.2	1.912	165	24.50	5.225	74
V2O5	0.72	460	0.5	2.0	1.269	212	17.7	3.61	75

^aThe anode mass loading is balanced with the cathode by using Zn powder instead of foil.