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Related Concept Videos

Weak Acid Solutions04:02

Weak Acid Solutions

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Few compounds act as strong acids. A far greater number of compounds behave as weak acids and only partially react with water, leaving a large majority of dissolved molecules in their original form and generating a relatively small amount of hydronium ions. Weak acids are commonly encountered in nature, being the substances partly responsible for the tangy taste of citrus fruits, the stinging sensation of insect bites, and the unpleasant smells associated with body odor. A familiar example of a...
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Acidity of 1-Alkynes02:42

Acidity of 1-Alkynes

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The acidic strength of hydrocarbons follows the order: Alkynes > Alkenes > Alkanes. The strength of an acid is commonly expressed in units of pKa — the lower the pKa, the stronger the acid. Among the hydrocarbons, terminal alkynes have lower pKa values and are, therefore, more acidic. For example, the pKa values for ethane, ethene, and acetylene are 51, 44, and 25, respectively, as shown here.
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Alkylation of β-Diester Enolates: Malonic Ester Synthesis01:14

Alkylation of β-Diester Enolates: Malonic Ester Synthesis

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Malonic ester synthesis is a method to obtain α substituted carboxylic acids from ꞵ-diesters such as diethyl malonate and alkyl halides.
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Related Experiment Video

Updated: Jan 8, 2026

Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications
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Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications

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A dimethylacetamide-based eutectic electrolyte for high-performance aqueous lithium-ion batteries.

Jiajie Zhang1, Changkun Zhang1

  • 1Division of Energy Storage, Dalian National Laboratory for Clean Energy, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China. zhangchk17@dicp.ac.cn.

Chemical Communications (Cambridge, England)
|December 22, 2025
PubMed
Summary

Researchers developed novel aqueous electrolytes using dimethylacetamide to stabilize high-voltage lithium batteries. This innovation suppresses unwanted reactions, enabling over 870 stable cycles for lithium manganese oxide and lithium titanium oxide systems.

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Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques
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Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques
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Area of Science:

  • Electrochemistry
  • Materials Science
  • Energy Storage

Background:

  • Aqueous electrolytes offer safer and more sustainable alternatives for batteries.
  • High-voltage aqueous batteries face challenges with interfacial instability and hydrogen evolution reactions.

Purpose of the Study:

  • To design novel aqueous eutectic electrolytes for high-voltage lithium-ion batteries.
  • To regulate the electrode-electrolyte interface and suppress parasitic reactions.

Main Methods:

  • Formulation of dimethylacetamide-based aqueous eutectic electrolytes.
  • Electrochemical characterization of LiMn2O4‖Li4Ti5O12 battery systems.
  • Analysis of interfacial phase formation and reaction suppression.

Main Results:

  • An inorganic-rich interfacial phase was successfully formed.
  • Suppression of the hydrogen evolution reaction was achieved.
  • A high-voltage aqueous LiMn2O4‖Li4Ti5O12 battery demonstrated stability over 870 cycles.

Conclusions:

  • Dimethylacetamide-based aqueous eutectic electrolytes effectively stabilize high-voltage battery interfaces.
  • This electrolyte design is a promising strategy for developing stable and high-performance aqueous lithium-ion batteries.