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Related Concept Videos

Batteries and Fuel Cells03:12

Batteries and Fuel Cells

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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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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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Ionic Strength: Overview01:12

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The ionic strength of a solution is a quantitative way of expressing the total electrolyte concentration of a solution. This concept was first introduced in 1921 by two American physical chemists, Gilbert N. Lewis and Merle Randall, while describing the activity coefficient of strong electrolytes. During the calculation of ionic strength (I or μ), all the cations and anions are considered. However, the concentration (c) of an ion with a greater charge number (z) has a greater contribution...
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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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Ionic Strength: Effects on Chemical Equilibria01:19

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The addition of an inert ionic compound increases the solubility of a sparingly soluble salt. For example, adding potassium nitrate to a saturated solution of calcium sulfate significantly enhances the solubility of calcium sulfate. Le Châtelier's principle cannot predict this shift in the equilibrium. Instead, this could be explained in terms of changes in the effective concentration of the ions in solution in the presence of added inert salt.
In this solution, the primary...
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Electrolyte and Nonelectrolyte Solutions02:21

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Substances that undergo either a physical or a chemical change in solution to yield ions that can conduct electricity are called electrolytes. If a substance yields ions in solution, that is, if the compound undergoes 100% dissociation, then the substance is a strong electrolyte. Complete dissociation is indicated by a single forward arrow. For example, water-soluble ionic compounds like sodium chloride dissociate into sodium cations and chloride anions in aqueous solution.
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Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications
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Recent progress in solid-state electrolytes for alkali-ion batteries.

Cheng Jiang1, Huiqiao Li2, Chengliang Wang1

  • 1School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China.

Science Bulletin
|January 20, 2023
PubMed
Summary
This summary is machine-generated.

Solid-state electrolytes offer enhanced safety and energy density for alkali ion batteries by preventing dendrite growth. This review highlights their progress and future trends in energy storage.

Keywords:
Energy storageLithium-ion batteriesSodium-ion batteriesSolid-state electrolytes

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Area of Science:

  • Materials Science
  • Electrochemistry
  • Energy Storage

Background:

  • Solid-state electrolytes are crucial for advanced energy storage, offering superior safety and performance over liquid electrolytes.
  • Key advantages include inhibiting alkali metal dendrite growth and preventing electrolyte leakage.
  • They enable higher energy and power densities, crucial for next-generation batteries and flexible electronics.

Purpose of the Study:

  • To provide a comprehensive review of recent advancements in solid-state electrolytes for alkali ion batteries.
  • To compare different types of solid-state electrolytes.
  • To outline the current state-of-the-art and future development trends in this field.

Main Methods:

  • Literature review and synthesis of recent research findings.
  • Comparative analysis of various solid-state electrolyte materials and their properties.
  • Discussion of performance metrics and technological implications.

Main Results:

  • Solid-state electrolytes demonstrate significant potential in overcoming limitations of conventional batteries.
  • Key challenges and breakthroughs in materials development are identified.
  • The review consolidates current knowledge on dendrite inhibition and safety enhancements.

Conclusions:

  • Solid-state electrolytes represent a critical area of research for high-performance and safe energy storage solutions.
  • Continued research is vital for optimizing material properties and enabling widespread adoption.
  • The future points towards advanced solid-state electrolytes driving innovation in battery technology.