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Title: Current collectors for improved safety

Abstract

A battery electrode assembly includes a current collector with conduction barrier regions having a conductive state in which electrical conductivity through the conduction barrier region is permitted, and a safety state in which electrical conductivity through the conduction barrier regions is reduced. The conduction barrier regions change from the conductive state to the safety state when the current collector receives a short-threatening event. An electrode material can be connected to the current collector. The conduction barrier regions can define electrical isolation subregions. A battery is also disclosed, and methods for making the electrode assembly, methods for making a battery, and methods for operating a battery.

Inventors:
; ; ; ; ;
Issue Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1414393
Patent Number(s):
9847531
Application Number:
14/955,366
Assignee:
UT-BATTELLE, LLC (Oak Ridge, TN)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Patent
Resource Relation:
Patent File Date: 2015 Dec 01
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 25 ENERGY STORAGE

Citation Formats

Abdelmalak, Michael Naguib, Allu, Srikanth, Dudney, Nancy J., Li, Jianlin, Simunovic, Srdjan, and Wang, Hsin. Current collectors for improved safety. United States: N. p., 2017. Web.
Abdelmalak, Michael Naguib, Allu, Srikanth, Dudney, Nancy J., Li, Jianlin, Simunovic, Srdjan, & Wang, Hsin. Current collectors for improved safety. United States.
Abdelmalak, Michael Naguib, Allu, Srikanth, Dudney, Nancy J., Li, Jianlin, Simunovic, Srdjan, and Wang, Hsin. Tue . "Current collectors for improved safety". United States. https://www.osti.gov/servlets/purl/1414393.
@article{osti_1414393,
title = {Current collectors for improved safety},
author = {Abdelmalak, Michael Naguib and Allu, Srikanth and Dudney, Nancy J. and Li, Jianlin and Simunovic, Srdjan and Wang, Hsin},
abstractNote = {A battery electrode assembly includes a current collector with conduction barrier regions having a conductive state in which electrical conductivity through the conduction barrier region is permitted, and a safety state in which electrical conductivity through the conduction barrier regions is reduced. The conduction barrier regions change from the conductive state to the safety state when the current collector receives a short-threatening event. An electrode material can be connected to the current collector. The conduction barrier regions can define electrical isolation subregions. A battery is also disclosed, and methods for making the electrode assembly, methods for making a battery, and methods for operating a battery.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2017},
month = {12}
}

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Works referenced in this record:

Internal-short-mitigating current collector for lithium-ion battery
journal, May 2017


Heterogeneous current collector in lithium-ion battery for thermal-runaway mitigation
journal, February 2017


Small Scale Mechanical Characterization of Thin Foil Materials via Pin Load Microtesting
journal, May 2015


A positive-temperature-coefficient electrode with thermal protection mechanism for rechargeable lithium batteries
journal, April 2012


LiFePO4-based electrode using micro-porous current collector for high power lithium ion battery
journal, November 2007