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Scalable preparation of freestanding flexible Si nanoparticles-carbon nanotubes composite paper anodes for lithium ion batteries and their prelithiation by stabilized lithium metal powder

  • Florida State University
  • Florida State University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

Freestanding flexible light-weight silicon nanoparticles-carbon nanotubes (SiNPs-CNTs) composite paper anodes for lithium ion batteries (LIBs) have been prepared by ultrasonication and pressure filtration without adoption of conductive additive, binder or current collector. Electrochemical testing has shown that the SiNPs-CNTs composite electrode material achieves first cycle specific discharge and charge capacities of 2298 and 1492 mAh/g, respectively. To address the first cycle irreversibility, stabilized lithium metal powder (SLMP) has been utilized to prelithiate our composite anodes. Compared to cell without SLMP, the cell with an SLMP loading of SLMP/anode mass ratio of 0.26 has the first cycle irreversible capacity loss reduced from 806 to 28 mAh/g and the first cycle coulombic efficiency increased from 65 to 98%. The relationship between different SLMP loading and the cell performance has been established to optimize the construction of Si-based cells.

Original languageEnglish
Title of host publicationJoint General Session
Subtitle of host publicationBatteries and Energy Storage -and- Fuel Cells, Electrolytes, and Energy Conversion
EditorsA. Manivannan, T. R. Jow, K. Edstrom, V. Kalra, B. Y. Liaw
PublisherElectrochemical Society Inc.
Pages61-73
Number of pages13
Edition8
ISBN (Electronic)9781607686316
DOIs
StatePublished - 2015
EventSymposium on Joint General Session: Batteries and Energy Storage -and- Fuel Cells, Electrolytes, and Energy Conversion - 227th ECS Meeting - Chicago, United States
Duration: May 24 2015May 28 2015

Publication series

NameECS Transactions
Number8
Volume66
ISSN (Print)1938-6737
ISSN (Electronic)1938-5862

Conference

ConferenceSymposium on Joint General Session: Batteries and Energy Storage -and- Fuel Cells, Electrolytes, and Energy Conversion - 227th ECS Meeting
Country/TerritoryUnited States
CityChicago
Period05/24/1505/28/15

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