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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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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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Lithium Ion Battery Anode Aging Mechanisms.

Victor Agubra1, Jeffrey Fergus2

  • 1Materials Research and Education Center, Auburn University, 275 Wilmore Laboratories Auburn, AL 36849, USA. vaa0002@auburn.edu.

Materials (Basel, Switzerland)
|August 16, 2017
PubMed
Summary

Lithium-ion battery anode degradation, including lithium plating and material loss, shortens battery life. This review covers common anode aging issues and strategies to improve lithium-ion battery longevity.

Keywords:
Li-ion battery anode materialsLi-ion conductioncomposite electrodes

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Area of Science:

  • Materials Science
  • Electrochemistry
  • Energy Storage

Background:

  • Lithium-ion batteries are crucial for modern electronics and electric vehicles.
  • Battery longevity is limited by degradation mechanisms, particularly at the anode.
  • Understanding anode aging is key to developing more durable batteries.

Purpose of the Study:

  • To review common degradation mechanisms affecting lithium-ion battery anodes.
  • To discuss strategies for mitigating anode degradation and enhancing battery lifespan.
  • To provide insights into improving the operational life of lithium-ion batteries.

Main Methods:

  • Literature review of scientific publications on lithium-ion battery degradation.
  • Analysis of common anode aging phenomena.
  • Compilation of approaches to minimize electrode degradation.

Main Results:

  • Identified key degradation mechanisms: lithium plating, surface film growth, and material loss.
  • Anode electrodes are particularly susceptible to these aging processes.
  • Several strategies exist to mitigate these degradation pathways.

Conclusions:

  • Anode degradation significantly impacts lithium-ion battery performance and lifespan.
  • Addressing lithium plating and material loss is critical for battery longevity.
  • Further research into mitigation strategies can lead to more robust energy storage solutions.