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Title: Diagnostic Evaluation of Detrimental Phenomena in High-PowerLithium-Ion Batteries

Abstract

A pouch-type lithium-ion cell, with graphite anode and LiNi{sub 0.8}Co{sub 0.15}Al{sub 0.05}O{sub 2} cathode, was cycled at C/2 over 100% depth of discharge (DOD) at ambient temperature. The LiNi{sub 0.8}Co{sub 0.15}Al{sub 0.05}O{sub 2} composite cathode was primarily responsible for the significant impedance rise and capacity fade observed in that cell. The processes that led to this impedance rise were assessed by investigating the cathode surface electronic conductance, surface structure, composition, and state of charge at the microscopic level with the use of local probe techniques. Raman microscopy mapping of the cathode surface provided evidence that the state of charge of individual LiNi{sub 0.8}Co{sub 0.15}Al{sub 0.05}O{sub 2} particles was non-uniform despite the deep discharge at the end of cell testing. Current-sensing atomic force microscopy imaging revealed that the cathode surface electronic conductance diminished significantly in the tested cells. Loss of contact of active material particles with the carbon matrix and thin film formation via electrolyte decomposition not only led to LiNi{sub 0.8}Co{sub 0.15}Al{sub 0.05}O{sub 2} particle isolation and contributed to cathode interfacial charge-transfer impedance but also accounted for the observed cell power and capacity loss.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Ernest Orlando Lawrence Berkeley NationalLaboratory, Berkeley, CA (US)
Sponsoring Org.:
USDOE. Assistant Secretary for Energy Efficiency andRenewable Energy. Office of the FreedomCAR and Vehicle TechnologiesProgram, Office of Basic Energy Sciences. Chemical Sciences Geosciencesand Biosciences Division
OSTI Identifier:
903039
Report Number(s):
LBNL-59195
R&D Project: 477603; BnR: VT0301030; TRN: US200718%%363
DOE Contract Number:  
DE-AC02-05CH11231
Resource Type:
Journal Article
Journal Name:
The Electrochemical Society, Inc.
Additional Journal Information:
Journal Volume: 153; Journal Issue: 4; Related Information: Journal Publication Date: 2006
Country of Publication:
United States
Language:
English
Subject:
25; AMBIENT TEMPERATURE; ANODES; ATOMIC FORCE MICROSCOPY; CAPACITY; CARBON; CATHODES; ELECTROLYTES; EVALUATION; GRAPHITE; IMPEDANCE; MICROSCOPY; PROBES; TESTING; THIN FILMS

Citation Formats

Kostecki, Robert, Lei, Jinglei, McLarnon, Frank, Shim, Joongpyo, and Striebel, Kathryn. Diagnostic Evaluation of Detrimental Phenomena in High-PowerLithium-Ion Batteries. United States: N. p., 2005. Web.
Kostecki, Robert, Lei, Jinglei, McLarnon, Frank, Shim, Joongpyo, & Striebel, Kathryn. Diagnostic Evaluation of Detrimental Phenomena in High-PowerLithium-Ion Batteries. United States.
Kostecki, Robert, Lei, Jinglei, McLarnon, Frank, Shim, Joongpyo, and Striebel, Kathryn. Tue . "Diagnostic Evaluation of Detrimental Phenomena in High-PowerLithium-Ion Batteries". United States. https://www.osti.gov/servlets/purl/903039.
@article{osti_903039,
title = {Diagnostic Evaluation of Detrimental Phenomena in High-PowerLithium-Ion Batteries},
author = {Kostecki, Robert and Lei, Jinglei and McLarnon, Frank and Shim, Joongpyo and Striebel, Kathryn},
abstractNote = {A pouch-type lithium-ion cell, with graphite anode and LiNi{sub 0.8}Co{sub 0.15}Al{sub 0.05}O{sub 2} cathode, was cycled at C/2 over 100% depth of discharge (DOD) at ambient temperature. The LiNi{sub 0.8}Co{sub 0.15}Al{sub 0.05}O{sub 2} composite cathode was primarily responsible for the significant impedance rise and capacity fade observed in that cell. The processes that led to this impedance rise were assessed by investigating the cathode surface electronic conductance, surface structure, composition, and state of charge at the microscopic level with the use of local probe techniques. Raman microscopy mapping of the cathode surface provided evidence that the state of charge of individual LiNi{sub 0.8}Co{sub 0.15}Al{sub 0.05}O{sub 2} particles was non-uniform despite the deep discharge at the end of cell testing. Current-sensing atomic force microscopy imaging revealed that the cathode surface electronic conductance diminished significantly in the tested cells. Loss of contact of active material particles with the carbon matrix and thin film formation via electrolyte decomposition not only led to LiNi{sub 0.8}Co{sub 0.15}Al{sub 0.05}O{sub 2} particle isolation and contributed to cathode interfacial charge-transfer impedance but also accounted for the observed cell power and capacity loss.},
doi = {},
journal = {The Electrochemical Society, Inc.},
number = 4,
volume = 153,
place = {United States},
year = {2005},
month = {11}
}