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Title: Solid polymer electrolyte electrochemical storage cell containing a redox shuttle additive for overcharge protection

Abstract

A class of organic redox shuttle additives is described, preferably comprising nitrogen-containing aromatics compounds, which can be used in a high temperature (85.degree. C. or higher) electrochemical storage cell comprising a positive electrode, a negative electrode, and a solid polymer electrolyte to provide overcharge protection to the cell. The organic redox additives or shuttles are characterized by a high diffusion coefficient of at least 2.1.times.10.sup.-8 cm.sup.2 /second and a high onset potential of 2.5 volts or higher. Examples of such organic redox shuttle additives include an alkali metal salt of 1,2,4-triazole, an alkali metal salt of imidazole, 2,3,5,6-tetramethylpyrazine, 1,3,5-tricyanobenzene, and a dialkali metal salt of 3-4-dihydroxy-3-cyclobutene-1,2-dione.

Inventors:
 [1];  [2]
  1. Oakland, CA
  2. Moraga, CA
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
OSTI Identifier:
872773
Patent Number(s):
US 6004698
Assignee:
United States of America as represented by United States (Washington, DC)
DOE Contract Number:  
AC03-76SF00098
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
solid; polymer; electrolyte; electrochemical; storage; cell; containing; redox; shuttle; additive; overcharge; protection; organic; additives; described; preferably; comprising; nitrogen-containing; aromatics; compounds; temperature; 85; degree; positive; electrode; negative; provide; shuttles; characterized; diffusion; coefficient; times; 10; -8; cm; onset; potential; volts; examples; alkali; metal; salt; 4-triazole; imidazole; 6-tetramethylpyrazine; 5-tricyanobenzene; dialkali; 3-4-dihydroxy-3-cyclobutene-1; 2-dione; preferably comprising; diffusion coefficient; shuttle additive; electrochemical storage; positive electrode; negative electrode; alkali metal; metal salt; polymer electrolyte; solid polymer; electrolyte electrochemical; cell comprising; cell containing; redox shuttle; storage cell; overcharge protection; provide overcharge; cell contain; containing aromatic; /429/252/

Citation Formats

Richardson, Thomas J, and Ross, Philip N. Solid polymer electrolyte electrochemical storage cell containing a redox shuttle additive for overcharge protection. United States: N. p., 1999. Web.
Richardson, Thomas J, & Ross, Philip N. Solid polymer electrolyte electrochemical storage cell containing a redox shuttle additive for overcharge protection. United States.
Richardson, Thomas J, and Ross, Philip N. Fri . "Solid polymer electrolyte electrochemical storage cell containing a redox shuttle additive for overcharge protection". United States. https://www.osti.gov/servlets/purl/872773.
@article{osti_872773,
title = {Solid polymer electrolyte electrochemical storage cell containing a redox shuttle additive for overcharge protection},
author = {Richardson, Thomas J and Ross, Philip N},
abstractNote = {A class of organic redox shuttle additives is described, preferably comprising nitrogen-containing aromatics compounds, which can be used in a high temperature (85.degree. C. or higher) electrochemical storage cell comprising a positive electrode, a negative electrode, and a solid polymer electrolyte to provide overcharge protection to the cell. The organic redox additives or shuttles are characterized by a high diffusion coefficient of at least 2.1.times.10.sup.-8 cm.sup.2 /second and a high onset potential of 2.5 volts or higher. Examples of such organic redox shuttle additives include an alkali metal salt of 1,2,4-triazole, an alkali metal salt of imidazole, 2,3,5,6-tetramethylpyrazine, 1,3,5-tricyanobenzene, and a dialkali metal salt of 3-4-dihydroxy-3-cyclobutene-1,2-dione.},
doi = {},
url = {https://www.osti.gov/biblio/872773}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {1}
}

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Works referenced in this record:

Status of the development of rechargeable lithium cells
journal, January 1994


Analysis of Redox Additive-Based Overcharge Protection for Rechargeable Lithium Batteries
journal, January 1991


Applications of Metallocenes in Rechargeable Lithium Batteries for Overcharge Protection
journal, January 1992


Electrochemical Overcharge Protection of Rechargeable Lithium Batteries
journal, January 1988


n-Butylferrocene for Overcharge Protection of Secondary Lithium Batteries
journal, January 1990