“…Up to now, a great many attempts have been taken to overcome these problems. One is physical addition of additives to the ZnO such as Ca(OH) 2 , Bi 2 O 3 , TiO 2 , PbO, SnO 2 [3][4][5][6][7][8], and another is the additives to the electrolyte such as bismuth ion and some organic salt [9,10]. To some extent, they could suppress the shape change and dendrite formation.…”