Current collectors for improved safety

Title: Current collectors for improved safety

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:: Abdelmalak, Michael Naguib; Allu, Srikanth; Dudney, Nancy J.; Li, Jianlin; Simunovic, Srdjan; Wang, Hsin

Issue Date:: 2017-12-19

OSTI Identifier:: 1414393

Assignee:: UT-BATTELLE, LLC (Oak Ridge, TN) ORNL

Patent Number(s):: 9,847,531

Application Number:: 14/955,366

Contract Number:: AC05-00OR22725

Resource Relation:: Patent File Date: 2015 Dec 01

Research Org:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Org:: USDOE

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING; 25 ENERGY STORAGE

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