Energy Highlights

You need to log in to create highlights and comments.

Overcoming lithium dendrites by electroplating on soft substrates

Overcoming lithium dendrites by electroplating on soft substrates

Problems related to dendrite growth on lithium-metal anodes such as capacity loss and short circuit present major barriers to next-generation high-energy-density batteries. The development of successful lithium dendrite mitigation strategies is impeded by an incomplete understanding of the Li dendrite growth mechanisms, and in particular, Li-plating-induced internal stress in Li metal and its effect on Li growth morphology are not well addressed. Here, we reveal the enabling role of plating residual stress in dendrite formation through depositing Li on soft substrates and a stress-driven dendrite growth model. We show that dendrite growth is mitigated on such soft substrates through surface-wrinkling-induced stress relaxation in the deposited Li film. We demonstrate that this dendrite mitigation mechanism can be utilized synergistically with other existing approaches in the form of three-dimensional soft scaffolds for Li plating, which achieves higher coulombic efficiency and better capacity retention than that for conventional copper substrates.

 

Original title: Stress-driven lithium dendrite growth mechanism and dendrite mitigation by electroplating on soft substrates

Source: https://www.nature.com/articles/s41560-018-0104-5

Unique Energy Highlights provides the best Lithium-ion batteries discussion forum; it also covers all energy storage and harvesting research. Here is the best place for appraisal and criticisms of energy-storage and energy-harvesting publications. Easily get updated on energy storage and harvesting researh and development.

To make a highlight (on recent or old publications),

  • Know that you can submit the highlights of your own publications or those of others.
  • The highlight can be the abstract, an appraisal or a criticism.
  • Search with the the original title of the publication to be sure it is not already highlighted.
  • Coin a short unique title in the online form
  • Just copy and paste the web abstract of the publication.
  • Put the unique title as a header (bold, centered, underlined) just above the abstract.
  • Put the original title of the publication and its source (DOI  link) at the end.
  • Finally submit the highlight and make a first comment.
  • You get €25 Amazon gift card if your highlight is selected among the unique highlights of the month.