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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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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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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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Solubility Equilibria: Ionic Product of Water01:16

Solubility Equilibria: Ionic Product of Water

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Pure water is a weak electrolyte; only a small amount ionizes into hydrogen and hydroxide ions. At any given temperature, the concentration of undissociated water is almost constant, so the ionic product of water is the product of the hydrogen and hydroxide ion concentrations, denoted as Kw. The square root of Kw gives the individual ion concentrations.
The ionic product of water varies with temperature, and its value is 1.0 x 10−14 at standard experimental conditions. Per Le...
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Chemical Reactions in Aqueous Solutions03:03

Chemical Reactions in Aqueous Solutions

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Chemical substances interact in many different ways. Certain chemical reactions exhibit common patterns of reactivity. Due to the vast number of chemical reactions, it becomes necessary to classify them based on the observed patterns of interaction.
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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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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 lithium ion battery using an aqueous electrolyte solution.

Zheng Chang1, Chunyang Li2, Yanfang Wang1

  • 1New Energy and Materials Laboratory (NEML), Department of Chemistry &Shanghai Key Laboratory of Molecular Catalysis and Innovative Material, Fudan University, Shanghai 200433, China.

Scientific Reports
|June 23, 2016
PubMed
Summary
This summary is machine-generated.

This study introduces a safe and efficient aqueous lithium-ion battery. The novel design offers high energy density, making it a promising green energy storage solution.

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Area of Science:

  • Materials Science
  • Electrochemistry
  • Energy Storage

Background:

  • Growing concerns about energy demands and environmental pollution necessitate advanced energy storage solutions.
  • Current energy storage technologies often face challenges related to safety, cost, and environmental impact.

Purpose of the Study:

  • To develop a novel lithium-ion battery utilizing an aqueous electrolyte solution.
  • To achieve high safety, reliability, energy density, and cost-effectiveness in energy storage devices.

Main Methods:

  • Fabrication of a lithium-ion battery with a graphite/gel polymer membrane/LISICON negative electrode.
  • Utilizing a LiFePO4 positive electrode in an aqueous electrolyte.
  • Characterization of electrochemical performance, including discharge voltage and energy density.

Main Results:

  • The aqueous lithium-ion battery achieved an average discharge voltage of 3.1 V.
  • An energy density of 258 Wh kg(-1) was recorded, based on electrode materials.
  • The battery demonstrated potential for safe operation and efficient cooling.

Conclusions:

  • The developed aqueous lithium-ion battery presents a viable and promising energy storage system.
  • This technology addresses the need for safer, high-performance, and cost-effective green energy solutions.
  • Further research could optimize this system for broader applications in sustainable energy storage.