A rocking-chair type all-organic proton battery operated at ultralow temperature

An all-organic rocking-chair proton battery using HATN anode and 2,6-DHN@CMK-3 cathode in 9.5 M H 3 PO 4 achieves high capacity, energy density, cycling life and low-temperature performance via reversible –C–O–H/–CO and –CN/–C–N–H reactions.