Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

Systems and related methods for determining self-discharge currents and internal shorts in energy storage cells

Patent ·
OSTI ID:1464607
; ;
Systems and methods for determining self-discharge currents in an energy storage cell and detecting internal shorts are disclosed. A system includes a DC voltage source configured to provide a constant test voltage selected to be less than an open-circuit voltage of an energy storage cell to the energy storage cell. The system also includes a current measuring device operably coupled between the DC voltage source and the energy storage cell, and control circuitry operably coupled to the current measuring device. A method includes applying the constant test voltage, and measuring the test current flowing between the DC voltage source and the energy storage cell until after the test current switches from a negative current to a positive current. The method also includes determining a self-discharge current of the energy storage cell by analyzing the measured test current with computational models that capture physical processes tied to the test methods.
Research Organization:
Idaho National Laboratory (INL), Idaho Falls, ID (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC07-05ID14517
Assignee:
Battelle Energy Alliance, LLC (Idaho Falls, ID)
Patent Number(s):
10,036,779
Application Number:
14/954,446
OSTI ID:
1464607
Country of Publication:
United States
Language:
English

References (18)

A kinetics study of self-discharge of spinel electrodes in Li/LixMn2O4 cells journal February 2006
Ni-Composite Microencapsulated Graphite as the Negative Electrode in Lithium-Ion Batteries II: Electrochemical Impedance and Self-Discharge Studies journal January 2000
Comparative studies of self-discharge by potential decay and float-current measurements at C double-layer capacitor and battery electrodes journal September 2004
A Critical Review of Thermal Issues in Lithium-Ion Batteries journal January 2011
The role of Li-ion battery electrolyte reactivity in performance decline and self-discharge journal June 2003
Self-discharge of secondary lithium-ion graphite anodes journal October 2002
Dendrite short-circuit and fuse effect on Li/polymer/Li cells journal July 2006
Internal short circuit in Li-ion cells journal June 2009
Analysis of internal short-circuit in a lithium ion cell journal October 2009
Simulation of capacity loss in carbon electrode for lithium-ion cells during storage journal March 2007
Battery Modeling: A Versatile Tool to Design Advanced Battery Management Systems journal January 2014
Experimental triggers for internal short circuits in lithium-ion cells journal August 2011
Self-discharge losses in lithium-ion cells journal February 2004
Diagnostic analyses for mechanisms of self-discharge of electrochemical capacitors and batteries journal March 1997
Beneficial influence of succinic anhydride as electrolyte additive on the self-discharge of 5 V LiNi0.4Mn1.6O4 cathodes journal August 2013
Influence of particle size on the self-discharge behavior of graphite electrodes in lithium-ion batteries journal October 2011
Mechanism of self-discharge in graphite–lithium anode journal February 2002
Electrochemical investigation of CrO2.65 doped LiMn2O4 as a cathode material for lithium-ion batteries journal November 1998

Similar Records

Energy storage cell impedance measuring apparatus, methods and related systems
Patent · 2017 · OSTI ID:1414943
Remotely powered line monitor
Patent · 2020 · OSTI ID:1650770
Power conversion apparatus and method
Patent · 2012 · OSTI ID:1037751

Related Subjects

25 ENERGY STORAGE