Preparation and electrochemical performance of nanosized Bi compounds-modified ZnO for Zn/Ni secondary cell

Zn–Al layered double oxides as high-performance anode materials for zinc-based secondary battery

“…17 Many efforts have been made to mitigate or suppress dendrite formation: most researchers have focused on the electrolyte, modication of ZnO and additives in the electrodes. 9,18 A large variety of inorganic additives, such as Ca(II), 19,20 Bi(III), [21][22][23] In(III), [24][25][26] and Ba(II), 27 have been added to zinc electrodes, and it was found that they can suppress dendrite formation on zinc electrodes to different extents. In addition, organic additives, such as surfactants with pi electrons on fused rings 28 , polyaniline and polypyrrole, 29,30 have also been adopted to stabilise the zinc electrode.…”

Implementation of stable electrochemical performance using a Fe0.01ZnO anodic material in alkaline Ni–Zn redox battery

“…Several attempts, including the use of additives in either the electrode or the electrolyte, have been made to suppress ZnO dendritic growth [21]. Some researchers have focused on the physical addition of additives to the ZnO, such as In 2 O 3 , BaO, Ca(OH) 2 , Bi 2 O 3 , TiO 2 , Pb 3 O 4 , and SnO 2 [22][23][24][25][26]. Some researchers used additives to the electrolyte, such as organic salts [27].…”

Solid-Phase Synthesis of ZnO@Bi2O3 Core–Shell Composites for Long-Life NiZn Batteries

“…In order to solve these issues, researchers have designed a few strategies: (1) some additives such as Bi 2 O 3 , In­(OH) 3 , SnO 2 , etc., are added into the Zn electrode to suppress hydrogen evolution; − (2) nanoscale design of the Zn electrode to overcome the ZnO passivation problem; , (3) ion-sieving coating or designing a special structure, which addresses dendrite formation, − passivation, and shape change; − and (4) formation of composites with highly conductive materials that can reduce the overall resistance of the electrode. − Generally, the Bi 2 O 3 additive has been used to suppress the H 2 evolution in the Zn electrode because reduction to metallic Bi prior to deposition of zinc further improves the H 2 evolution overvoltage of Zn. − It can be physically mixed with ZnO in the Zn anode. This approach cannot make a uniform mixture from ZnO and Bi 2 O 3 and only utilize the function of Bi 2 O 3 that inhibits hydrogen evolution, which consequently results in low efficiency.…”