Extending the Life of Lithium-Based Rechargeable Batteries by Reaction of Lithium Dendrites with a Novel Silica Nanoparticle Sandwiched Separator

Kai Liu; Denys Zhuo; Hyun-Wook Lee; Wei Liu; Dingchang Lin; Yingying Lu; Yi Cui

doi:10.1002/adma.201603987

Extending the Life of Lithium-Based Rechargeable Batteries by Reaction of Lithium Dendrites with a Novel Silica Nanoparticle Sandwiched Separator

Adv Mater. 2017 Jan;29(4). doi: 10.1002/adma.201603987. Epub 2016 Nov 22.

Authors

Kai Liu¹, Denys Zhuo¹, Hyun-Wook Lee¹, Wei Liu¹, Dingchang Lin¹, Yingying Lu¹, Yi Cui^{1

2}

Affiliations

¹ Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA.
² Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA.

PMID: 27874235
DOI: 10.1002/adma.201603987

Abstract

A reaction-protective separator that slows the growth of lithium dendrites penetrating into the separator is produced by sandwiching silica nanoparticles between two polymer separators. The reaction between lithium dendrites and silica nanoparticles consumes the dendrites and can extend the life of the battery by approximately five times.

Keywords: battery separators; lithium dendrites; lithium-ion batteries; silica nanoparticles.