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Title: Lithium-ion batteries with intrinsic pulse overcharge protection

Abstract

The present invention relates in general to the field of lithium rechargeable batteries, and more particularly relates to the positive electrode design of lithium-ion batteries with improved high-rate pulse overcharge protection. Thus the present invention provides electrochemical devices containing a cathode comprising at least one primary positive material and at least one secondary positive material; an anode; and a non-aqueous electrolyte comprising a redox shuttle additive; wherein the redox potential of the redox shuttle additive is greater than the redox potential of the primary positive material; the redox potential of the redox shuttle additive is lower than the redox potential of the secondary positive material; and the redox shuttle additive is stable at least up to the redox potential of the secondary positive material.

Inventors:
;
Issue Date:
Research Org.:
ANL (Argonne National Laboratory (ANL), Argonne, IL (United States))
Sponsoring Org.:
USDOE
OSTI Identifier:
1083226
Patent Number(s):
8,367,253
Application Number:
11/345,947
Assignee:
U Chicago Argonne LLC (Chicago, IL)
DOE Contract Number:  
W-31-109-ENG-38
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE

Citation Formats

Chen, Zonghai, and Amine, Khalil. Lithium-ion batteries with intrinsic pulse overcharge protection. United States: N. p., 2013. Web.
Chen, Zonghai, & Amine, Khalil. Lithium-ion batteries with intrinsic pulse overcharge protection. United States.
Chen, Zonghai, and Amine, Khalil. Tue . "Lithium-ion batteries with intrinsic pulse overcharge protection". United States. https://www.osti.gov/servlets/purl/1083226.
@article{osti_1083226,
title = {Lithium-ion batteries with intrinsic pulse overcharge protection},
author = {Chen, Zonghai and Amine, Khalil},
abstractNote = {The present invention relates in general to the field of lithium rechargeable batteries, and more particularly relates to the positive electrode design of lithium-ion batteries with improved high-rate pulse overcharge protection. Thus the present invention provides electrochemical devices containing a cathode comprising at least one primary positive material and at least one secondary positive material; an anode; and a non-aqueous electrolyte comprising a redox shuttle additive; wherein the redox potential of the redox shuttle additive is greater than the redox potential of the primary positive material; the redox potential of the redox shuttle additive is lower than the redox potential of the secondary positive material; and the redox shuttle additive is stable at least up to the redox potential of the secondary positive material.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2013},
month = {2}
}

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