Improved power source for doubling the exchange time interval of LLC.

PDF Version Also Available for Download.

Description

This LDRD project attempts to use novel electrochemical techniques to understand the reaction mechanism that limits the discharge reaction of lithium CF{sub x} chemistry. If this advanced component development and exploratory investigations efforts are successful we will have a High Energy Density Li Primary Battery Technology with the capability to double the run time in the same volume, or provide the same energy in a much smaller volume. These achievements would be a substantial improvement over commercial Li/Thionyl chloride battery technology. The Li(CF{sub x}){sub n} chemistry has the highest theoretical energy (and capacity) and hence very attractive for long life ... continued below

Physical Description

82 p.

Creation Information

Nagasubramanian, Ganesan December 1, 2008.

Context

This report 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. More information about this report can be viewed below.

Who

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

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 report. Follow the links below to find similar items on the Digital Library.

Description

This LDRD project attempts to use novel electrochemical techniques to understand the reaction mechanism that limits the discharge reaction of lithium CF{sub x} chemistry. If this advanced component development and exploratory investigations efforts are successful we will have a High Energy Density Li Primary Battery Technology with the capability to double the run time in the same volume, or provide the same energy in a much smaller volume. These achievements would be a substantial improvement over commercial Li/Thionyl chloride battery technology. The Li(CF{sub x}){sub n} chemistry has the highest theoretical energy (and capacity) and hence very attractive for long life battery applications. However, the practical open circuit voltage (OCV) is only 3.2 V which is {approx}1.3 V lower than the thermodynamic cell voltage (for an in depth explanation of the voltage depression refer to 'Introduction'). The presence of intermediate has been invoked to explain the lower OCV of the cell. Due to the reduction in cell voltage the cell out put is reduced by {approx}40%. To account for the initial voltage loss a mechanism has been proposed which involves the formation of a ternary compound (like C(LiF){sub x}). But neither its presence nor its nature has been confirmed. Our work will seek to develop understanding of the voltage depression with a goal to produce a primary battery with improved properties that will have significant impact in furthering advancements.

Physical Description

82 p.

Language

Item Type

Identifier

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

  • Report No.: SAND2008-6490
  • Grant Number: AC04-94AL85000
  • DOI: 10.2172/946577 | External Link
  • Office of Scientific & Technical Information Report Number: 946577
  • Archival Resource Key: ark:/67531/metadc899180

Collections

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

Office of Scientific & Technical Information Technical Reports

What responsibilities do I have when using this report?

When

Dates and time periods associated with this report.

Creation Date

  • December 1, 2008

Added to The UNT Digital Library

  • Sept. 27, 2016, 1:39 a.m.

Description Last Updated

  • Nov. 29, 2016, 2:32 p.m.

Usage Statistics

When was this report last used?

Congratulations! It looks like you are the first person to view this item online.

Interact With This Report

Here are some suggestions for what to do next.

Start Reading

PDF Version Also Available for Download.

Citations, Rights, Re-Use

Nagasubramanian, Ganesan. Improved power source for doubling the exchange time interval of LLC., report, December 1, 2008; United States. (digital.library.unt.edu/ark:/67531/metadc899180/: accessed September 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.