Trace Amounts of Triple-Functional Additives Enable Reversible Aqueous Zinc-Ion Batteries from a Comprehensive Perspective

Abstract Although their cost-effectiveness and intrinsic safety, aqueous zinc-ion batteries suffer from notorious side reactions including hydrogen evolution reaction, Zn corrosion and passivation, and Zn dendrite formation on the anode. Despite numerous strategies to alleviate these side reactions have been demonstrated, they can only provide limited performance improvement from a single aspect. Herein, a triple-functional additive with trace amounts, ammonium hydroxide, was demonstrated to comprehensively protect zinc anodes. The results show that the shift of electrolyte pH from 4.1 to 5.2 lowers the HER potential and encourages the in situ formation of a uniform ZHS-based solid electrolyte interphase on Zn…

• NN
  National Natural Science Foundation of China

  Award: 32171721
• SJ
  Shanghai Jiao Tong University
• EA
  Engineering and Physical Sciences Research Council

  Awards: EP/V027433/1, EP/V027433/1, EP/Y008707/1, EP/V027433/3, EP/V027433/2, EP/V027433/1; EP/V027433/2, EP/V027433/2
• GM
  Guangzhou Municipal Science and Technology Project
• NK
  National Key Research and Development Program of China

  Award: 2019YFE0114400
• BA
  Basic and Applied Basic Research Foundation of Guangdong Province

  Award: 2021B1515120005