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Related Concept Videos

Electrolysis03:00

Electrolysis

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In a galvanic cell, the electrical work is done by a redox system on its surroundings as electrons produced by the spontaneous redox reactions are transferred through an external circuit. Alternatively, an external circuit does work on a redox system by imposing a voltage sufficient to drive an otherwise nonspontaneous reaction in a process known as electrolysis. For instance, recharging a battery involves the use of an external power source to drive the spontaneous (discharge) cell reaction in...
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A battery is a galvanic cell that is used as a source of electrical power for specific applications. Modern batteries exist in a multitude of forms to accommodate various applications, from tiny button batteries such as those that power wristwatches to the very large batteries used to supply backup energy to municipal power grids. Some batteries are designed for single-use applications and cannot be recharged (primary cells), while others are based on conveniently reversible cell reactions that...
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Most acid-base titrations are performed in an aqueous medium. In aqueous titrations, water competes with weaker acids or bases for proton donation or acceptance, leading to ambiguous endpoints in the titration curve. Water also affects the partial ionization of weak acids or bases. For example, water accepts a proton from acetic acid to form hydronium and acetate ions. The hydronium ion formed is a stronger acid than acetic acid, and the acetate ion is a stronger base than water. As a result,...
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ATP-driven pumps, also known as transport ATPases, are integral membrane proteins. They have binding sites for ATP located on the membrane's cytosolic side and the ion-conducting domain in the transmembrane region. These pumps use the free energy released from ATP hydrolysis to move the solutes across cell membranes against an electrochemical gradient.
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Alkali Metals03:06

Alkali Metals

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Group 1 elements are soft and shiny metallic solids. They are malleable, ductile, and good conductors of heat and electricity. The melting points of the alkali metals are unusually low for metals and decrease going down the group, while the density increases going down the group with the exception of potassium (Table 1).
Table 1: Properties of the alkali metals
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Updated: Feb 22, 2026

Non-aqueous Electrode Processing and Construction of Lithium-ion Coin Cells
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Recent research progress in non-aqueous potassium-ion batteries.

Xiaoxi Zou1, Peixun Xiong, Jin Zhao

  • 1School of Materials Science & Engineering, Wuhan Institute of Technology, Wuhan 430073, China. able.ztliu@wit.edu.cn.

Physical Chemistry Chemical Physics : PCCP
|September 28, 2017
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Summary

Potassium-ion batteries offer a sustainable alternative to lithium-ion batteries for large-scale energy storage. Research highlights their potential using earth-abundant materials, overcoming lithium scarcity concerns.

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Area of Science:

  • Materials Science
  • Electrochemistry
  • Energy Storage

Background:

  • Growing demand for large-scale energy storage solutions.
  • Lithium-ion battery limitations due to lithium resource scarcity.
  • Need for sustainable energy storage based on abundant materials.

Purpose of the Study:

  • Summarize recent advancements in non-aqueous potassium-ion batteries (KIBs).
  • Explore KIBs as a viable alternative to lithium-ion batteries.
  • Identify challenges and future research directions for KIB technology.

Main Methods:

  • Review of current research on electrode materials for KIBs.
  • Analysis of electrolyte compositions and their impact on KIB performance.
  • Investigation of various battery architectures and electrochemical processes in KIBs.

Main Results:

  • Non-aqueous KIBs demonstrate promising performance.
  • Potassium is an abundant and cost-effective element for battery applications.
  • Progress made in developing suitable electrode materials and electrolytes for KIBs.

Conclusions:

  • Non-aqueous KIBs are a promising technology for large-scale energy storage.
  • Further research is needed to address challenges and optimize KIB performance.
  • KIBs represent a sustainable path forward for grid-scale energy storage.