Comparative Studies of the Electrochemical and Thermal Stability of Composite Electrolytes for Lithium Battery Using Two Types of Boron-Based Anion Receptors

PDF Version Also Available for Download.

Description

Comparative studies were done on two new types of boron based anion receptors, tris(pentafluorophenyl) borane (TFPB) and tris(pentafluorophenyl) borate (TFPBO), regarding conductivity enhancement electrochemical and thermal stability when used as additives in composite electrolytes for lithium batteries. Both additives enhance the ionic conductivity of electrolytes of simple lithium salts, LiF, CF{sub 3}CO{sub 2}Li and C{sub 2}F{sub 5}CO{sub 2}Li in several organic solvents. The electrochemical windows of TPFB based electrolytes in ethylene carbonate (EC)-propylene carbonate (PC)-dmethyl carbonate (DMC) (1:1:3, v/v) are up to 5, 4.76 and 4.96 V for LiF, CF{sub 3}CO{sub 2}Li and C{sub 2}F{sub 5}CO{sub 2}Li respectively. TPFBO has ... continued below

Physical Description

12 p.

Creation Information

Yang, X. Q.; Lee, H. S.; Sun, X. & McBreen, J. October 17, 1999.

Context

This article is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 37 times , with 6 in the last month . More information about this article can be viewed below.

Who

People and organizations associated with either the creation of this article or its content.

Sponsor

Publisher

Provided By

UNT Libraries Government Documents Department

Serving as both a federal and a state depository library, the UNT Libraries Government Documents Department maintains millions of items in a variety of formats. The department is a member of the FDLP Content Partnerships Program and an Affiliated Archive of the National Archives.

Contact Us

What

Descriptive information to help identify this article. Follow the links below to find similar items on the Digital Library.

Description

Comparative studies were done on two new types of boron based anion receptors, tris(pentafluorophenyl) borane (TFPB) and tris(pentafluorophenyl) borate (TFPBO), regarding conductivity enhancement electrochemical and thermal stability when used as additives in composite electrolytes for lithium batteries. Both additives enhance the ionic conductivity of electrolytes of simple lithium salts, LiF, CF{sub 3}CO{sub 2}Li and C{sub 2}F{sub 5}CO{sub 2}Li in several organic solvents. The electrochemical windows of TPFB based electrolytes in ethylene carbonate (EC)-propylene carbonate (PC)-dmethyl carbonate (DMC) (1:1:3, v/v) are up to 5, 4.76 and 4.96 V for LiF, CF{sub 3}CO{sub 2}Li and C{sub 2}F{sub 5}CO{sub 2}Li respectively. TPFBO has lower electrochemical stability compared to TPFB. The thermal stability of pure TFPB is better than TFPBO. The lithium salt complexes have higher thermal stability than these two compounds. TPFB based electrolytes showed high cycling efficiencies and good cycleability when they were tested in Li/LiMn{sub 2}O{sub 4} cells. The capacity retention of the cells using TFPB based electrolytes during multiple cycling is better than those using TFPBO based electrolytes.

Physical Description

12 p.

Notes

OSTI as DE00770777

Medium: P; Size: 12 pages

Source

  • 1999 Joint International Meeting: 196th Meeting of the Electrochemical Society and 1999 Fall meeting of the Electrochemical Society of Japan, Honolulu, HI (US), 10/17/1999--10/22/1999

Language

Item Type

Identifier

Unique identifying numbers for this article in the Digital Library or other systems.

  • Report No.: BNL-66570
  • Grant Number: AC02-98CH10886
  • Office of Scientific & Technical Information Report Number: 770777
  • Archival Resource Key: ark:/67531/metadc723321

Collections

This article is part of the following collection of related materials.

Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

What responsibilities do I have when using this article?

When

Dates and time periods associated with this article.

Creation Date

  • October 17, 1999

Added to The UNT Digital Library

  • Sept. 29, 2015, 5:31 a.m.

Description Last Updated

  • April 6, 2017, 7:57 p.m.

Usage Statistics

When was this article last used?

Yesterday: 2
Past 30 days: 6
Total Uses: 37

Interact With This Article

Here are some suggestions for what to do next.

Start Reading

PDF Version Also Available for Download.

Citations, Rights, Re-Use

Yang, X. Q.; Lee, H. S.; Sun, X. & McBreen, J. Comparative Studies of the Electrochemical and Thermal Stability of Composite Electrolytes for Lithium Battery Using Two Types of Boron-Based Anion Receptors, article, October 17, 1999; Upton, New York. (digital.library.unt.edu/ark:/67531/metadc723321/: accessed April 25, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.