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【SMM popularization of science.: Applications of Electrolyte Additives in Lithium Battery Industry】Electrolyte additives refer to a small amount of additives added to the electrolyte to improve its electrochemical properties and cathode deposition quality. By adding a small amount of additives to the electrolyte of lithium-ion batteries, some properties of the batteries can be improved in a targeted way, such as reversible capacity, electrode/electrolyte compatibility, cycle performance, rate capability and safety, etc. They play a very critical role in lithium-ion batteries. The amount of...

On a mission to build better electric vehiclebatteries, chemists at the U.S. Department of Energy’s (DOE) Brookhaven National Laboratory have used an electrolyte additive to improve the functional ...

The practical application of aqueous zinc-ion batteries (AZIBs) is limited by serious side reactions, such as the hydrogen evolution reaction and Zn dendrite growth. Here, the study proposes a novel adoption of a biodegradable electrolyte additive, γ-Valerolactone (GVL), with only 1 vol.% addition (GVL-to-H2O volume ratio) to enable a stable Zn metal anode. The combination of experimental characterizations and theoretical calculations verifies that the green GVL additive can competitively engage the solvated structure of Zn2+ via replacing a H2O molecule from [Zn(H2O)6]2+, which can efficient...

Aqueous-electrolyte-based zinc-ion batteries (ZIBs), which have significant advantages over other batteries, including low cost, high safety, high ionic conductivity, and a natural abundance of zinc, have been regarded as a potential alternative to lithium-ion batteries (LIBs). ZIBs still face some critical challenges, however, especially for building a reversible zinc anode. To address the reversibility of zinc anode, great efforts have been made on intrinsic anode engineering and anode interface modification. Less attention has been devoted to the electrolyte additives, however, which could ...

Utilization of lithium (Li) metal anode is highly desirable for achieving high energy density batteries. Even so, the unavoidable features of Li dendritic growth and inactive Li are still the main factors that hinder its practical application. During plating and stripping, the solid electrolyte interphase (SEI) layer can provide passivation, playing an important role in preventing direct contact between the electrolyte and the electrode in Li metal batteries. Because of complexities of the electrolyte chemical and electrochemical reactions, the various formation mechanisms for the SEI are stil...