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Updated: Feb 13, 2026

Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature
Published on: December 20, 2016
Multi-Group Functional Additive Enhances the Wide-Temperature-Range Performance of Sodium-Ion Batteries
Weizhen Fan1, Jian Cai1, Wenlian Wang2
1School of Chemistry, South China Normal University, Guangzhou 510006, P.R. China.
Abstract:
A functional electrolyte with trimethylsiloxybenzenesulfonate (TMBS) multigroup additive is developed to enhance the performance of NaNi0.33Fe0.33Mn0.33O2 (NFM)/hard carbon (HC) sodium-ion batteries (SIBs) from 60 to -30 °C. Compared to the additive-free baseline electrolyte or the electrolytes containing monofunctional methylmethanesulfonate (MS) and methylbenzenesulfonate (MBS) additives, TMBS is more conducive to suppress the excessive side reactions at the anode and promoting the formation of robust cathode-electrolyte interphase (CEI) over a wide temperature range. TMBS-containing cells exhibit enhanced performance in overdischarge testing at 60 °C, rate capability and cycling stability at 45 °C, discharge performance at -30 °C, as well as low-temperature cycling stability at -10 °C. Besides, this work provides an effective additive design principle for pouch NFM/HC SIBs.
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15.9; 16.1; 15.2; 14.8; 15.8; 15.9; 16.0; 15.5
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Ions as Acids and Bases
Salts are ionic compounds composed of cations and anions, either of which may be capable of undergoing an acid or base ionization reaction with water. Aqueous salt solutions, therefore, may be acidic, basic, or neutral, depending on the relative acid-base strengths of the salt’s constituent ions. For example, dissolving the ammonium chloride in water results in its dissociation, as described by the equation:
Formation of Complex Ions

