590
Views
35
Crossref
32
WoS
31
Scopus
0
CSCD
Aqueous ammonium-ion battery (AAIB) has attracted much attention due to its low cost, safety, and environmental friendliness, but its electrode materials have many limitations. Here, alloxazine (ALO) is introduced as the anode for the AAIB. With its pseudocapacitive effect and fast diffusion kinetics of NH4+, ALO anode shows excellent rate performance with a specific capacity of 120 mAh/g at 40 C (10 A/g). The full battery is further fabricated by ALO anode and Prussian white analogs cathode. Its specific capacity can reach 110 mAh/g and it can work up to 10, 000 cycles with no obvious capacity fading at 20 C (5 A/g). In addition, the system delivers a high energy density of 122.5 Wh/kg and a power density of 5, 055 W/kg. This work broadens the application prospect of the AAIB.
This study was supported the National Natural Science Foundation of China (Nos. 51771094 and 21835004), Ministry of Education of China (Nos. B12015 and IRT13R30), and Tianjin Natural Science Foundation (No. 18JCZDJC31500).